diff options
Diffstat (limited to '')
| -rw-r--r-- | lib/Makefile.am | 159 | ||||
| -rw-r--r-- | lib/Makefile.in | 1414 | ||||
| -rw-r--r-- | lib/addgrps.c (renamed from libmisc/addgrps.c) | 18 | ||||
| -rw-r--r-- | lib/adds.c | 15 | ||||
| -rw-r--r-- | lib/adds.h | 86 | ||||
| -rw-r--r-- | lib/age.c (renamed from libmisc/age.c) | 17 | ||||
| -rw-r--r-- | lib/agetpass.c | 145 | ||||
| -rw-r--r-- | lib/agetpass.h | 23 | ||||
| -rw-r--r-- | lib/alloc.c (renamed from libmisc/xmalloc.c) | 57 | ||||
| -rw-r--r-- | lib/alloc.h | 101 | ||||
| -rw-r--r-- | lib/atoi/a2i.c | 46 | ||||
| -rw-r--r-- | lib/atoi/a2i.h | 386 | ||||
| -rw-r--r-- | lib/atoi/str2i.c | 18 | ||||
| -rw-r--r-- | lib/atoi/str2i.h | 108 | ||||
| -rw-r--r-- | lib/atoi/strtoi.c | 15 | ||||
| -rw-r--r-- | lib/atoi/strtoi.h | 96 | ||||
| -rw-r--r-- | lib/atoi/strtou_noneg.c | 13 | ||||
| -rw-r--r-- | lib/atoi/strtou_noneg.h | 39 | ||||
| -rw-r--r-- | lib/attr.h | 33 | ||||
| -rw-r--r-- | lib/audit_help.c (renamed from libmisc/audit_help.c) | 10 | ||||
| -rw-r--r-- | lib/basename.c (renamed from libmisc/basename.c) | 4 | ||||
| -rw-r--r-- | lib/bit.c | 19 | ||||
| -rw-r--r-- | lib/bit.h | 53 | ||||
| -rw-r--r-- | lib/btrfs.c (renamed from libmisc/btrfs.c) | 2 | ||||
| -rw-r--r-- | lib/cast.h | 15 | ||||
| -rw-r--r-- | lib/chkname.c (renamed from libmisc/chkname.c) | 57 | ||||
| -rw-r--r-- | lib/chkname.h (renamed from libmisc/chkname.h) | 9 | ||||
| -rw-r--r-- | lib/chowndir.c (renamed from libmisc/chowndir.c) | 0 | ||||
| -rw-r--r-- | lib/chowntty.c (renamed from libmisc/chowntty.c) | 2 | ||||
| -rw-r--r-- | lib/cleanup.c (renamed from libmisc/cleanup.c) | 0 | ||||
| -rw-r--r-- | lib/cleanup_group.c (renamed from libmisc/cleanup_group.c) | 17 | ||||
| -rw-r--r-- | lib/cleanup_user.c (renamed from libmisc/cleanup_user.c) | 23 | ||||
| -rw-r--r-- | lib/commonio.c | 121 | ||||
| -rw-r--r-- | lib/commonio.h | 10 | ||||
| -rw-r--r-- | lib/console.c (renamed from libmisc/console.c) | 9 | ||||
| -rw-r--r-- | lib/copydir.c (renamed from libmisc/copydir.c) | 333 | ||||
| -rw-r--r-- | lib/csrand.c | 150 | ||||
| -rw-r--r-- | lib/defines.h | 183 | ||||
| -rw-r--r-- | lib/env.c (renamed from libmisc/env.c) | 73 | ||||
| -rw-r--r-- | lib/failure.c (renamed from libmisc/failure.c) | 126 | ||||
| -rw-r--r-- | lib/failure.h (renamed from libmisc/failure.h) | 17 | ||||
| -rw-r--r-- | lib/fd.c | 41 | ||||
| -rw-r--r-- | lib/fields.c | 40 | ||||
| -rw-r--r-- | lib/find_new_gid.c (renamed from libmisc/find_new_gid.c) | 53 | ||||
| -rw-r--r-- | lib/find_new_sub_gids.c (renamed from libmisc/find_new_sub_gids.c) | 2 | ||||
| -rw-r--r-- | lib/find_new_sub_uids.c (renamed from libmisc/find_new_sub_uids.c) | 2 | ||||
| -rw-r--r-- | lib/find_new_uid.c (renamed from libmisc/find_new_uid.c) | 53 | ||||
| -rw-r--r-- | lib/fputsx.c | 3 | ||||
| -rw-r--r-- | lib/freezero.c | 30 | ||||
| -rw-r--r-- | lib/freezero.h | 34 | ||||
| -rw-r--r-- | lib/get_gid.c | 21 | ||||
| -rw-r--r-- | lib/get_pid.c | 90 | ||||
| -rw-r--r-- | lib/get_uid.c | 21 | ||||
| -rw-r--r-- | lib/getdate.c (renamed from libmisc/getdate.c) | 229 | ||||
| -rw-r--r-- | lib/getdate.h (renamed from libmisc/getdate.h) | 0 | ||||
| -rw-r--r-- | lib/getdate.y (renamed from libmisc/getdate.y) | 23 | ||||
| -rw-r--r-- | lib/getdef.c | 119 | ||||
| -rw-r--r-- | lib/getdef.h | 2 | ||||
| -rw-r--r-- | lib/getgr_nam_gid.c (renamed from libmisc/getgr_nam_gid.c) | 12 | ||||
| -rw-r--r-- | lib/getlong.c | 36 | ||||
| -rw-r--r-- | lib/getrange.c | 71 | ||||
| -rw-r--r-- | lib/gettime.c | 47 | ||||
| -rw-r--r-- | lib/getulong.c | 39 | ||||
| -rw-r--r-- | lib/groupio.c | 65 | ||||
| -rw-r--r-- | lib/groupmem.c | 40 | ||||
| -rw-r--r-- | lib/gshadow.c | 231 | ||||
| -rw-r--r-- | lib/hushed.c (renamed from libmisc/hushed.c) | 17 | ||||
| -rw-r--r-- | lib/idmapping.c (renamed from libmisc/idmapping.c) | 63 | ||||
| -rw-r--r-- | lib/idmapping.h (renamed from libmisc/idmapping.h) | 0 | ||||
| -rw-r--r-- | lib/isexpired.c (renamed from libmisc/isexpired.c) | 19 | ||||
| -rw-r--r-- | lib/limits.c (renamed from libmisc/limits.c) | 138 | ||||
| -rw-r--r-- | lib/list.c (renamed from libmisc/list.c) | 50 | ||||
| -rw-r--r-- | lib/lockpw.c | 2 | ||||
| -rw-r--r-- | lib/log.c (renamed from libmisc/log.c) | 36 | ||||
| -rw-r--r-- | lib/logind.c | 52 | ||||
| -rw-r--r-- | lib/loginprompt.c | 111 | ||||
| -rw-r--r-- | lib/mail.c (renamed from libmisc/mail.c) | 14 | ||||
| -rw-r--r-- | lib/memzero.c | 17 | ||||
| -rw-r--r-- | lib/memzero.h | 49 | ||||
| -rw-r--r-- | lib/motd.c (renamed from libmisc/motd.c) | 4 | ||||
| -rw-r--r-- | lib/must_be.h | 99 | ||||
| -rw-r--r-- | lib/myname.c (renamed from libmisc/myname.c) | 0 | ||||
| -rw-r--r-- | lib/nscd.c | 2 | ||||
| -rw-r--r-- | lib/nss.c | 138 | ||||
| -rw-r--r-- | lib/obscure.c (renamed from libmisc/obscure.c) | 112 | ||||
| -rw-r--r-- | lib/pam_defs.h | 2 | ||||
| -rw-r--r-- | lib/pam_pass.c (renamed from libmisc/pam_pass.c) | 2 | ||||
| -rw-r--r-- | lib/pam_pass_non_interactive.c (renamed from libmisc/pam_pass_non_interactive.c) | 20 | ||||
| -rw-r--r-- | lib/port.c | 34 | ||||
| -rw-r--r-- | lib/prefix_flag.c (renamed from libmisc/prefix_flag.c) | 102 | ||||
| -rw-r--r-- | lib/prototypes.h | 156 | ||||
| -rw-r--r-- | lib/pwauth.c | 64 | ||||
| -rw-r--r-- | lib/pwd2spwd.c (renamed from libmisc/pwd2spwd.c) | 9 | ||||
| -rw-r--r-- | lib/pwd_init.c (renamed from libmisc/pwd_init.c) | 27 | ||||
| -rw-r--r-- | lib/pwdcheck.c (renamed from libmisc/pwdcheck.c) | 8 | ||||
| -rw-r--r-- | lib/pwio.c | 23 | ||||
| -rw-r--r-- | lib/pwmem.c | 9 | ||||
| -rw-r--r-- | lib/readpassphrase.c | 198 | ||||
| -rw-r--r-- | lib/readpassphrase.h | 47 | ||||
| -rw-r--r-- | lib/remove_tree.c (renamed from libmisc/remove_tree.c) | 0 | ||||
| -rw-r--r-- | lib/rlogin.c (renamed from libmisc/rlogin.c) | 104 | ||||
| -rw-r--r-- | lib/root_flag.c (renamed from libmisc/root_flag.c) | 8 | ||||
| -rw-r--r-- | lib/run_part.c | 24 | ||||
| -rw-r--r-- | lib/salt.c (renamed from libmisc/salt.c) | 142 | ||||
| -rw-r--r-- | lib/selinux.c | 4 | ||||
| -rw-r--r-- | lib/semanage.c | 47 | ||||
| -rw-r--r-- | lib/setugid.c (renamed from libmisc/setugid.c) | 0 | ||||
| -rw-r--r-- | lib/setupenv.c (renamed from libmisc/setupenv.c) | 29 | ||||
| -rw-r--r-- | lib/sgetgrent.c | 70 | ||||
| -rw-r--r-- | lib/sgetpwent.c | 26 | ||||
| -rw-r--r-- | lib/sgetspent.c | 57 | ||||
| -rw-r--r-- | lib/sgroupio.c | 21 | ||||
| -rw-r--r-- | lib/shadow.c | 305 | ||||
| -rw-r--r-- | lib/shadowio.c | 7 | ||||
| -rw-r--r-- | lib/shadowlog_internal.h | 2 | ||||
| -rw-r--r-- | lib/shadowmem.c | 9 | ||||
| -rw-r--r-- | lib/shell.c (renamed from libmisc/shell.c) | 20 | ||||
| -rw-r--r-- | lib/sizeof.h | 25 | ||||
| -rw-r--r-- | lib/spawn.c | 5 | ||||
| -rw-r--r-- | lib/sssd.c | 12 | ||||
| -rw-r--r-- | lib/string/sprintf.c | 24 | ||||
| -rw-r--r-- | lib/string/sprintf.h | 97 | ||||
| -rw-r--r-- | lib/string/stpecpy.c | 20 | ||||
| -rw-r--r-- | lib/string/stpecpy.h | 90 | ||||
| -rw-r--r-- | lib/string/stpeprintf.c | 25 | ||||
| -rw-r--r-- | lib/string/stpeprintf.h | 120 | ||||
| -rw-r--r-- | lib/string/strftime.c | 7 | ||||
| -rw-r--r-- | lib/string/strftime.h | 19 | ||||
| -rw-r--r-- | lib/string/strncpy.h | 21 | ||||
| -rw-r--r-- | lib/string/strtcpy.c | 18 | ||||
| -rw-r--r-- | lib/string/strtcpy.h | 80 | ||||
| -rw-r--r-- | lib/string/zustr2stp.h | 58 | ||||
| -rw-r--r-- | lib/strtoday.c | 77 | ||||
| -rw-r--r-- | lib/sub.c (renamed from libmisc/sub.c) | 18 | ||||
| -rw-r--r-- | lib/subordinateio.c | 135 | ||||
| -rw-r--r-- | lib/sulog.c (renamed from libmisc/sulog.c) | 2 | ||||
| -rw-r--r-- | lib/tcbfuncs.c | 11 | ||||
| -rw-r--r-- | lib/time/day_to_str.c | 11 | ||||
| -rw-r--r-- | lib/time/day_to_str.h | 51 | ||||
| -rw-r--r-- | lib/ttytype.c (renamed from libmisc/ttytype.c) | 8 | ||||
| -rw-r--r-- | lib/tz.c (renamed from libmisc/tz.c) | 7 | ||||
| -rw-r--r-- | lib/ulimit.c (renamed from libmisc/ulimit.c) | 20 | ||||
| -rw-r--r-- | lib/user_busy.c (renamed from libmisc/user_busy.c) | 68 | ||||
| -rw-r--r-- | lib/utent.c | 70 | ||||
| -rw-r--r-- | lib/utmp.c | 434 | ||||
| -rw-r--r-- | lib/valid.c (renamed from libmisc/valid.c) | 0 | ||||
| -rw-r--r-- | lib/write_full.c | 77 | ||||
| -rw-r--r-- | lib/xgetXXbyYY.c (renamed from libmisc/xgetXXbyYY.c) | 41 | ||||
| -rw-r--r-- | lib/xgetgrgid.c (renamed from libmisc/xgetgrgid.c) | 4 | ||||
| -rw-r--r-- | lib/xgetgrnam.c (renamed from libmisc/xgetgrnam.c) | 4 | ||||
| -rw-r--r-- | lib/xgetpwnam.c (renamed from libmisc/xgetpwnam.c) | 4 | ||||
| -rw-r--r-- | lib/xgetpwuid.c (renamed from libmisc/xgetpwuid.c) | 4 | ||||
| -rw-r--r-- | lib/xgetspnam.c (renamed from libmisc/xgetspnam.c) | 2 | ||||
| -rw-r--r-- | lib/xprefix_getpwnam.c | 41 | ||||
| -rw-r--r-- | lib/yesno.c | 87 | ||||
| -rw-r--r-- | libmisc/.indent.pro | 5 | ||||
| -rw-r--r-- | libmisc/Makefile.am | 80 | ||||
| -rw-r--r-- | libmisc/Makefile.in | 927 | ||||
| -rw-r--r-- | libmisc/date_to_str.c | 46 | ||||
| -rw-r--r-- | libmisc/entry.c | 45 | ||||
| -rw-r--r-- | libmisc/getrange.c | 101 | ||||
| -rw-r--r-- | libmisc/gettime.c | 68 | ||||
| -rw-r--r-- | libmisc/loginprompt.c | 155 | ||||
| -rw-r--r-- | libmisc/strtoday.c | 220 | ||||
| -rw-r--r-- | libmisc/utmp.c | 474 | ||||
| -rw-r--r-- | libmisc/yesno.c | 56 | ||||
| -rw-r--r-- | libsubid/Makefile.am | 3 | ||||
| -rw-r--r-- | libsubid/Makefile.in | 39 | ||||
| -rw-r--r-- | libsubid/api.c | 4 |
169 files changed, 6772 insertions, 5073 deletions
diff --git a/lib/Makefile.am b/lib/Makefile.am index 3a50b46..22abb97 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -5,57 +5,129 @@ DEFS = noinst_LTLIBRARIES = libshadow.la +if USE_PAM +LIBCRYPT_PAM = $(LIBCRYPT) +else +LIBCRYPT_PAM = +endif + +AM_CPPFLAGS = -I$(top_srcdir)/lib -I$(top_srcdir) $(ECONF_CPPFLAGS) + libshadow_la_CPPFLAGS = $(ECONF_CPPFLAGS) if HAVE_VENDORDIR libshadow_la_CPPFLAGS += -DVENDORDIR=\"$(VENDORDIR)\" endif libshadow_la_CPPFLAGS += -I$(top_srcdir) +libshadow_la_CFLAGS = $(LIBBSD_CFLAGS) $(LIBCRYPT_PAM) $(LIBSYSTEMD) +libshadow_la_LIBADD = $(LIBADD_DLOPEN) libshadow_la_SOURCES = \ + addgrps.c \ + adds.c \ + adds.h \ + age.c \ + agetpass.c \ + agetpass.h \ + alloc.c \ + alloc.h \ + atoi/a2i.c \ + atoi/a2i.h \ + atoi/str2i.c \ + atoi/str2i.h \ + atoi/strtoi.c \ + atoi/strtoi.h \ + atoi/strtou_noneg.c \ + atoi/strtou_noneg.h \ + attr.h \ + audit_help.c \ + basename.c \ + bit.c \ + bit.h \ + cast.h \ + chkname.c \ + chkname.h \ + chowndir.c \ + chowntty.c \ + cleanup.c \ + cleanup_group.c \ + cleanup_user.c \ commonio.c \ commonio.h \ + console.c \ + copydir.c \ + csrand.c \ defines.h \ encrypt.c \ + env.c \ exitcodes.h \ faillog.h \ + failure.c \ + failure.h \ + fd.c \ fields.c \ + find_new_gid.c \ + find_new_uid.c \ + find_new_sub_gids.c \ + find_new_sub_uids.c \ fputsx.c \ - getdef.c \ - getdef.h \ get_gid.c \ - getlong.c \ get_pid.c \ get_uid.c \ - getulong.c \ + getdate.h \ + getdate.y \ + getdef.c \ + getdef.h \ + getgr_nam_gid.c \ + getrange.c \ + gettime.c \ groupio.c \ groupmem.c \ groupio.h \ gshadow.c \ + hushed.c \ + idmapping.h \ + idmapping.c \ + isexpired.c \ + limits.c \ + list.c \ lockpw.c \ + loginprompt.c \ + mail.c \ + memzero.c \ + memzero.h \ + motd.c \ + must_be.h \ + myname.c \ nss.c \ nscd.c \ nscd.h \ - shadowlog.c \ - shadowlog.h \ - shadowlog_internal.h \ - sssd.c \ - sssd.h \ + obscure.c \ pam_defs.h \ + pam_pass.c \ + pam_pass_non_interactive.c \ port.c \ port.h \ + prefix_flag.c \ prototypes.h \ pwauth.c \ pwauth.h \ pwio.c \ pwio.h \ + pwd_init.c \ + pwd2spwd.c \ + pwdcheck.c \ pwmem.c \ + remove_tree.c \ + rlogin.c \ + root_flag.c \ run_part.h \ run_part.c \ - subordinateio.h \ - subordinateio.c \ + salt.c \ selinux.c \ semanage.c \ + setugid.c \ + setupenv.c \ sgetgrent.c \ sgetpwent.c \ sgetspent.c \ @@ -64,14 +136,74 @@ libshadow_la_SOURCES = \ shadow.c \ shadowio.c \ shadowio.h \ + shadowlog.c \ + shadowlog.h \ + shadowlog_internal.h \ shadowmem.c \ + shell.c \ + sizeof.h \ spawn.c \ - utent.c + sssd.c \ + sssd.h \ + string/sprintf.c \ + string/sprintf.h \ + string/stpecpy.c \ + string/stpecpy.h \ + string/stpeprintf.c \ + string/stpeprintf.h \ + string/strftime.c \ + string/strftime.h \ + string/strncpy.h \ + string/strtcpy.c \ + string/strtcpy.h \ + string/zustr2stp.h \ + strtoday.c \ + sub.c \ + subordinateio.h \ + subordinateio.c \ + sulog.c \ + time/day_to_str.c \ + time/day_to_str.h \ + ttytype.c \ + tz.c \ + ulimit.c \ + user_busy.c \ + valid.c \ + write_full.c \ + xgetpwnam.c \ + xprefix_getpwnam.c \ + xgetpwuid.c \ + xgetgrnam.c \ + xgetgrgid.c \ + xgetspnam.c \ + yesno.c if WITH_TCB libshadow_la_SOURCES += tcbfuncs.c tcbfuncs.h endif +if WITH_BTRFS +libshadow_la_SOURCES += btrfs.c +endif + +if ENABLE_LASTLOG +libshadow_la_SOURCES += log.c +endif + +if ENABLE_LOGIND +libshadow_la_SOURCES += logind.c +else +libshadow_la_SOURCES += utmp.c +endif + +if !WITH_LIBBSD +libshadow_la_SOURCES += \ + freezero.h \ + freezero.c \ + readpassphrase.h \ + readpassphrase.c +endif + # These files are unneeded for some reason, listed in # order of appearance: # @@ -79,4 +211,5 @@ endif EXTRA_DIST = \ .indent.pro \ - gshadow_.h + gshadow_.h \ + xgetXXbyYY.c diff --git a/lib/Makefile.in b/lib/Makefile.in index 9eef01c..1b4f0fe 100644 --- a/lib/Makefile.in +++ b/lib/Makefile.in @@ -90,6 +90,16 @@ build_triplet = @build@ host_triplet = @host@ @HAVE_VENDORDIR_TRUE@am__append_1 = -DVENDORDIR=\"$(VENDORDIR)\" @WITH_TCB_TRUE@am__append_2 = tcbfuncs.c tcbfuncs.h +@WITH_BTRFS_TRUE@am__append_3 = btrfs.c +@ENABLE_LASTLOG_TRUE@am__append_4 = log.c +@ENABLE_LOGIND_TRUE@am__append_5 = logind.c +@ENABLE_LOGIND_FALSE@am__append_6 = utmp.c +@WITH_LIBBSD_FALSE@am__append_7 = \ +@WITH_LIBBSD_FALSE@ freezero.h \ +@WITH_LIBBSD_FALSE@ freezero.c \ +@WITH_LIBBSD_FALSE@ readpassphrase.h \ +@WITH_LIBBSD_FALSE@ readpassphrase.c + subdir = lib ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 am__aclocal_m4_deps = $(top_srcdir)/m4/gettext.m4 \ @@ -109,41 +119,116 @@ CONFIG_HEADER = $(top_builddir)/config.h CONFIG_CLEAN_FILES = CONFIG_CLEAN_VPATH_FILES = LTLIBRARIES = $(noinst_LTLIBRARIES) -libshadow_la_LIBADD = -am__libshadow_la_SOURCES_DIST = commonio.c commonio.h defines.h \ - encrypt.c exitcodes.h faillog.h fields.c fputsx.c getdef.c \ - getdef.h get_gid.c getlong.c get_pid.c get_uid.c getulong.c \ - groupio.c groupmem.c groupio.h gshadow.c lockpw.c nss.c nscd.c \ - nscd.h shadowlog.c shadowlog.h shadowlog_internal.h sssd.c \ - sssd.h pam_defs.h port.c port.h prototypes.h pwauth.c pwauth.h \ - pwio.c pwio.h pwmem.c run_part.h run_part.c subordinateio.h \ - subordinateio.c selinux.c semanage.c sgetgrent.c sgetpwent.c \ +am__DEPENDENCIES_1 = +libshadow_la_DEPENDENCIES = $(am__DEPENDENCIES_1) +am__libshadow_la_SOURCES_DIST = addgrps.c adds.c adds.h age.c \ + agetpass.c agetpass.h alloc.c alloc.h atoi/a2i.c atoi/a2i.h \ + atoi/str2i.c atoi/str2i.h atoi/strtoi.c atoi/strtoi.h \ + atoi/strtou_noneg.c atoi/strtou_noneg.h attr.h audit_help.c \ + basename.c bit.c bit.h cast.h chkname.c chkname.h chowndir.c \ + chowntty.c cleanup.c cleanup_group.c cleanup_user.c commonio.c \ + commonio.h console.c copydir.c csrand.c defines.h encrypt.c \ + env.c exitcodes.h faillog.h failure.c failure.h fd.c fields.c \ + find_new_gid.c find_new_uid.c find_new_sub_gids.c \ + find_new_sub_uids.c fputsx.c get_gid.c get_pid.c get_uid.c \ + getdate.h getdate.y getdef.c getdef.h getgr_nam_gid.c \ + getrange.c gettime.c groupio.c groupmem.c groupio.h gshadow.c \ + hushed.c idmapping.h idmapping.c isexpired.c limits.c list.c \ + lockpw.c loginprompt.c mail.c memzero.c memzero.h motd.c \ + must_be.h myname.c nss.c nscd.c nscd.h obscure.c pam_defs.h \ + pam_pass.c pam_pass_non_interactive.c port.c port.h \ + prefix_flag.c prototypes.h pwauth.c pwauth.h pwio.c pwio.h \ + pwd_init.c pwd2spwd.c pwdcheck.c pwmem.c remove_tree.c \ + rlogin.c root_flag.c run_part.h run_part.c salt.c selinux.c \ + semanage.c setugid.c setupenv.c sgetgrent.c sgetpwent.c \ sgetspent.c sgroupio.c sgroupio.h shadow.c shadowio.c \ - shadowio.h shadowmem.c spawn.c utent.c tcbfuncs.c tcbfuncs.h + shadowio.h shadowlog.c shadowlog.h shadowlog_internal.h \ + shadowmem.c shell.c sizeof.h spawn.c sssd.c sssd.h \ + string/sprintf.c string/sprintf.h string/stpecpy.c \ + string/stpecpy.h string/stpeprintf.c string/stpeprintf.h \ + string/strftime.c string/strftime.h string/strncpy.h \ + string/strtcpy.c string/strtcpy.h string/zustr2stp.h \ + strtoday.c sub.c subordinateio.h subordinateio.c sulog.c \ + time/day_to_str.c time/day_to_str.h ttytype.c tz.c ulimit.c \ + user_busy.c valid.c write_full.c xgetpwnam.c \ + xprefix_getpwnam.c xgetpwuid.c xgetgrnam.c xgetgrgid.c \ + xgetspnam.c yesno.c tcbfuncs.c tcbfuncs.h btrfs.c log.c \ + logind.c utmp.c freezero.h freezero.c readpassphrase.h \ + readpassphrase.c +am__dirstamp = $(am__leading_dot)dirstamp @WITH_TCB_TRUE@am__objects_1 = libshadow_la-tcbfuncs.lo -am_libshadow_la_OBJECTS = libshadow_la-commonio.lo \ - libshadow_la-encrypt.lo libshadow_la-fields.lo \ - libshadow_la-fputsx.lo libshadow_la-getdef.lo \ - libshadow_la-get_gid.lo libshadow_la-getlong.lo \ - libshadow_la-get_pid.lo libshadow_la-get_uid.lo \ - libshadow_la-getulong.lo libshadow_la-groupio.lo \ - libshadow_la-groupmem.lo libshadow_la-gshadow.lo \ - libshadow_la-lockpw.lo libshadow_la-nss.lo \ - libshadow_la-nscd.lo libshadow_la-shadowlog.lo \ - libshadow_la-sssd.lo libshadow_la-port.lo \ - libshadow_la-pwauth.lo libshadow_la-pwio.lo \ - libshadow_la-pwmem.lo libshadow_la-run_part.lo \ - libshadow_la-subordinateio.lo libshadow_la-selinux.lo \ - libshadow_la-semanage.lo libshadow_la-sgetgrent.lo \ - libshadow_la-sgetpwent.lo libshadow_la-sgetspent.lo \ - libshadow_la-sgroupio.lo libshadow_la-shadow.lo \ - libshadow_la-shadowio.lo libshadow_la-shadowmem.lo \ - libshadow_la-spawn.lo libshadow_la-utent.lo $(am__objects_1) +@WITH_BTRFS_TRUE@am__objects_2 = libshadow_la-btrfs.lo +@ENABLE_LASTLOG_TRUE@am__objects_3 = libshadow_la-log.lo +@ENABLE_LOGIND_TRUE@am__objects_4 = libshadow_la-logind.lo +@ENABLE_LOGIND_FALSE@am__objects_5 = libshadow_la-utmp.lo +@WITH_LIBBSD_FALSE@am__objects_6 = libshadow_la-freezero.lo \ +@WITH_LIBBSD_FALSE@ libshadow_la-readpassphrase.lo +am_libshadow_la_OBJECTS = libshadow_la-addgrps.lo libshadow_la-adds.lo \ + libshadow_la-age.lo libshadow_la-agetpass.lo \ + libshadow_la-alloc.lo atoi/libshadow_la-a2i.lo \ + atoi/libshadow_la-str2i.lo atoi/libshadow_la-strtoi.lo \ + atoi/libshadow_la-strtou_noneg.lo libshadow_la-audit_help.lo \ + libshadow_la-basename.lo libshadow_la-bit.lo \ + libshadow_la-chkname.lo libshadow_la-chowndir.lo \ + libshadow_la-chowntty.lo libshadow_la-cleanup.lo \ + libshadow_la-cleanup_group.lo libshadow_la-cleanup_user.lo \ + libshadow_la-commonio.lo libshadow_la-console.lo \ + libshadow_la-copydir.lo libshadow_la-csrand.lo \ + libshadow_la-encrypt.lo libshadow_la-env.lo \ + libshadow_la-failure.lo libshadow_la-fd.lo \ + libshadow_la-fields.lo libshadow_la-find_new_gid.lo \ + libshadow_la-find_new_uid.lo libshadow_la-find_new_sub_gids.lo \ + libshadow_la-find_new_sub_uids.lo libshadow_la-fputsx.lo \ + libshadow_la-get_gid.lo libshadow_la-get_pid.lo \ + libshadow_la-get_uid.lo libshadow_la-getdate.lo \ + libshadow_la-getdef.lo libshadow_la-getgr_nam_gid.lo \ + libshadow_la-getrange.lo libshadow_la-gettime.lo \ + libshadow_la-groupio.lo libshadow_la-groupmem.lo \ + libshadow_la-gshadow.lo libshadow_la-hushed.lo \ + libshadow_la-idmapping.lo libshadow_la-isexpired.lo \ + libshadow_la-limits.lo libshadow_la-list.lo \ + libshadow_la-lockpw.lo libshadow_la-loginprompt.lo \ + libshadow_la-mail.lo libshadow_la-memzero.lo \ + libshadow_la-motd.lo libshadow_la-myname.lo \ + libshadow_la-nss.lo libshadow_la-nscd.lo \ + libshadow_la-obscure.lo libshadow_la-pam_pass.lo \ + libshadow_la-pam_pass_non_interactive.lo libshadow_la-port.lo \ + libshadow_la-prefix_flag.lo libshadow_la-pwauth.lo \ + libshadow_la-pwio.lo libshadow_la-pwd_init.lo \ + libshadow_la-pwd2spwd.lo libshadow_la-pwdcheck.lo \ + libshadow_la-pwmem.lo libshadow_la-remove_tree.lo \ + libshadow_la-rlogin.lo libshadow_la-root_flag.lo \ + libshadow_la-run_part.lo libshadow_la-salt.lo \ + libshadow_la-selinux.lo libshadow_la-semanage.lo \ + libshadow_la-setugid.lo libshadow_la-setupenv.lo \ + libshadow_la-sgetgrent.lo libshadow_la-sgetpwent.lo \ + libshadow_la-sgetspent.lo libshadow_la-sgroupio.lo \ + libshadow_la-shadow.lo libshadow_la-shadowio.lo \ + libshadow_la-shadowlog.lo libshadow_la-shadowmem.lo \ + libshadow_la-shell.lo libshadow_la-spawn.lo \ + libshadow_la-sssd.lo string/libshadow_la-sprintf.lo \ + string/libshadow_la-stpecpy.lo \ + string/libshadow_la-stpeprintf.lo \ + string/libshadow_la-strftime.lo string/libshadow_la-strtcpy.lo \ + libshadow_la-strtoday.lo libshadow_la-sub.lo \ + libshadow_la-subordinateio.lo libshadow_la-sulog.lo \ + time/libshadow_la-day_to_str.lo libshadow_la-ttytype.lo \ + libshadow_la-tz.lo libshadow_la-ulimit.lo \ + libshadow_la-user_busy.lo libshadow_la-valid.lo \ + libshadow_la-write_full.lo libshadow_la-xgetpwnam.lo \ + libshadow_la-xprefix_getpwnam.lo libshadow_la-xgetpwuid.lo \ + libshadow_la-xgetgrnam.lo libshadow_la-xgetgrgid.lo \ + libshadow_la-xgetspnam.lo libshadow_la-yesno.lo \ + $(am__objects_1) $(am__objects_2) $(am__objects_3) \ + $(am__objects_4) $(am__objects_5) $(am__objects_6) libshadow_la_OBJECTS = $(am_libshadow_la_OBJECTS) AM_V_lt = $(am__v_lt_@AM_V@) am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@) am__v_lt_0 = --silent am__v_lt_1 = +libshadow_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CCLD) $(libshadow_la_CFLAGS) \ + $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@ AM_V_P = $(am__v_P_@AM_V@) am__v_P_ = $(am__v_P_@AM_DEFAULT_V@) am__v_P_0 = false @@ -159,29 +244,83 @@ am__v_at_1 = DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir) depcomp = $(SHELL) $(top_srcdir)/depcomp am__maybe_remake_depfiles = depfiles -am__depfiles_remade = ./$(DEPDIR)/libshadow_la-commonio.Plo \ +am__depfiles_remade = ./$(DEPDIR)/libshadow_la-addgrps.Plo \ + ./$(DEPDIR)/libshadow_la-adds.Plo \ + ./$(DEPDIR)/libshadow_la-age.Plo \ + ./$(DEPDIR)/libshadow_la-agetpass.Plo \ + ./$(DEPDIR)/libshadow_la-alloc.Plo \ + ./$(DEPDIR)/libshadow_la-audit_help.Plo \ + ./$(DEPDIR)/libshadow_la-basename.Plo \ + ./$(DEPDIR)/libshadow_la-bit.Plo \ + ./$(DEPDIR)/libshadow_la-btrfs.Plo \ + ./$(DEPDIR)/libshadow_la-chkname.Plo \ + ./$(DEPDIR)/libshadow_la-chowndir.Plo \ + ./$(DEPDIR)/libshadow_la-chowntty.Plo \ + ./$(DEPDIR)/libshadow_la-cleanup.Plo \ + ./$(DEPDIR)/libshadow_la-cleanup_group.Plo \ + ./$(DEPDIR)/libshadow_la-cleanup_user.Plo \ + ./$(DEPDIR)/libshadow_la-commonio.Plo \ + ./$(DEPDIR)/libshadow_la-console.Plo \ + ./$(DEPDIR)/libshadow_la-copydir.Plo \ + ./$(DEPDIR)/libshadow_la-csrand.Plo \ ./$(DEPDIR)/libshadow_la-encrypt.Plo \ + ./$(DEPDIR)/libshadow_la-env.Plo \ + ./$(DEPDIR)/libshadow_la-failure.Plo \ + ./$(DEPDIR)/libshadow_la-fd.Plo \ ./$(DEPDIR)/libshadow_la-fields.Plo \ + ./$(DEPDIR)/libshadow_la-find_new_gid.Plo \ + ./$(DEPDIR)/libshadow_la-find_new_sub_gids.Plo \ + ./$(DEPDIR)/libshadow_la-find_new_sub_uids.Plo \ + ./$(DEPDIR)/libshadow_la-find_new_uid.Plo \ ./$(DEPDIR)/libshadow_la-fputsx.Plo \ + ./$(DEPDIR)/libshadow_la-freezero.Plo \ ./$(DEPDIR)/libshadow_la-get_gid.Plo \ ./$(DEPDIR)/libshadow_la-get_pid.Plo \ ./$(DEPDIR)/libshadow_la-get_uid.Plo \ + ./$(DEPDIR)/libshadow_la-getdate.Plo \ ./$(DEPDIR)/libshadow_la-getdef.Plo \ - ./$(DEPDIR)/libshadow_la-getlong.Plo \ - ./$(DEPDIR)/libshadow_la-getulong.Plo \ + ./$(DEPDIR)/libshadow_la-getgr_nam_gid.Plo \ + ./$(DEPDIR)/libshadow_la-getrange.Plo \ + ./$(DEPDIR)/libshadow_la-gettime.Plo \ ./$(DEPDIR)/libshadow_la-groupio.Plo \ ./$(DEPDIR)/libshadow_la-groupmem.Plo \ ./$(DEPDIR)/libshadow_la-gshadow.Plo \ + ./$(DEPDIR)/libshadow_la-hushed.Plo \ + ./$(DEPDIR)/libshadow_la-idmapping.Plo \ + ./$(DEPDIR)/libshadow_la-isexpired.Plo \ + ./$(DEPDIR)/libshadow_la-limits.Plo \ + ./$(DEPDIR)/libshadow_la-list.Plo \ ./$(DEPDIR)/libshadow_la-lockpw.Plo \ + ./$(DEPDIR)/libshadow_la-log.Plo \ + ./$(DEPDIR)/libshadow_la-logind.Plo \ + ./$(DEPDIR)/libshadow_la-loginprompt.Plo \ + ./$(DEPDIR)/libshadow_la-mail.Plo \ + ./$(DEPDIR)/libshadow_la-memzero.Plo \ + ./$(DEPDIR)/libshadow_la-motd.Plo \ + ./$(DEPDIR)/libshadow_la-myname.Plo \ ./$(DEPDIR)/libshadow_la-nscd.Plo \ ./$(DEPDIR)/libshadow_la-nss.Plo \ + ./$(DEPDIR)/libshadow_la-obscure.Plo \ + ./$(DEPDIR)/libshadow_la-pam_pass.Plo \ + ./$(DEPDIR)/libshadow_la-pam_pass_non_interactive.Plo \ ./$(DEPDIR)/libshadow_la-port.Plo \ + ./$(DEPDIR)/libshadow_la-prefix_flag.Plo \ ./$(DEPDIR)/libshadow_la-pwauth.Plo \ + ./$(DEPDIR)/libshadow_la-pwd2spwd.Plo \ + ./$(DEPDIR)/libshadow_la-pwd_init.Plo \ + ./$(DEPDIR)/libshadow_la-pwdcheck.Plo \ ./$(DEPDIR)/libshadow_la-pwio.Plo \ ./$(DEPDIR)/libshadow_la-pwmem.Plo \ + ./$(DEPDIR)/libshadow_la-readpassphrase.Plo \ + ./$(DEPDIR)/libshadow_la-remove_tree.Plo \ + ./$(DEPDIR)/libshadow_la-rlogin.Plo \ + ./$(DEPDIR)/libshadow_la-root_flag.Plo \ ./$(DEPDIR)/libshadow_la-run_part.Plo \ + ./$(DEPDIR)/libshadow_la-salt.Plo \ ./$(DEPDIR)/libshadow_la-selinux.Plo \ ./$(DEPDIR)/libshadow_la-semanage.Plo \ + ./$(DEPDIR)/libshadow_la-setugid.Plo \ + ./$(DEPDIR)/libshadow_la-setupenv.Plo \ ./$(DEPDIR)/libshadow_la-sgetgrent.Plo \ ./$(DEPDIR)/libshadow_la-sgetpwent.Plo \ ./$(DEPDIR)/libshadow_la-sgetspent.Plo \ @@ -190,11 +329,38 @@ am__depfiles_remade = ./$(DEPDIR)/libshadow_la-commonio.Plo \ ./$(DEPDIR)/libshadow_la-shadowio.Plo \ ./$(DEPDIR)/libshadow_la-shadowlog.Plo \ ./$(DEPDIR)/libshadow_la-shadowmem.Plo \ + ./$(DEPDIR)/libshadow_la-shell.Plo \ ./$(DEPDIR)/libshadow_la-spawn.Plo \ ./$(DEPDIR)/libshadow_la-sssd.Plo \ + ./$(DEPDIR)/libshadow_la-strtoday.Plo \ + ./$(DEPDIR)/libshadow_la-sub.Plo \ ./$(DEPDIR)/libshadow_la-subordinateio.Plo \ + ./$(DEPDIR)/libshadow_la-sulog.Plo \ ./$(DEPDIR)/libshadow_la-tcbfuncs.Plo \ - ./$(DEPDIR)/libshadow_la-utent.Plo + ./$(DEPDIR)/libshadow_la-ttytype.Plo \ + ./$(DEPDIR)/libshadow_la-tz.Plo \ + ./$(DEPDIR)/libshadow_la-ulimit.Plo \ + ./$(DEPDIR)/libshadow_la-user_busy.Plo \ + ./$(DEPDIR)/libshadow_la-utmp.Plo \ + ./$(DEPDIR)/libshadow_la-valid.Plo \ + ./$(DEPDIR)/libshadow_la-write_full.Plo \ + ./$(DEPDIR)/libshadow_la-xgetgrgid.Plo \ + ./$(DEPDIR)/libshadow_la-xgetgrnam.Plo \ + ./$(DEPDIR)/libshadow_la-xgetpwnam.Plo \ + ./$(DEPDIR)/libshadow_la-xgetpwuid.Plo \ + ./$(DEPDIR)/libshadow_la-xgetspnam.Plo \ + ./$(DEPDIR)/libshadow_la-xprefix_getpwnam.Plo \ + ./$(DEPDIR)/libshadow_la-yesno.Plo \ + atoi/$(DEPDIR)/libshadow_la-a2i.Plo \ + atoi/$(DEPDIR)/libshadow_la-str2i.Plo \ + atoi/$(DEPDIR)/libshadow_la-strtoi.Plo \ + atoi/$(DEPDIR)/libshadow_la-strtou_noneg.Plo \ + string/$(DEPDIR)/libshadow_la-sprintf.Plo \ + string/$(DEPDIR)/libshadow_la-stpecpy.Plo \ + string/$(DEPDIR)/libshadow_la-stpeprintf.Plo \ + string/$(DEPDIR)/libshadow_la-strftime.Plo \ + string/$(DEPDIR)/libshadow_la-strtcpy.Plo \ + time/$(DEPDIR)/libshadow_la-day_to_str.Plo am__mv = mv -f COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) @@ -214,6 +380,17 @@ AM_V_CCLD = $(am__v_CCLD_@AM_V@) am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@) am__v_CCLD_0 = @echo " CCLD " $@; am__v_CCLD_1 = +@MAINTAINER_MODE_FALSE@am__skipyacc = test -f $@ || +am__yacc_c2h = sed -e s/cc$$/hh/ -e s/cpp$$/hpp/ -e s/cxx$$/hxx/ \ + -e s/c++$$/h++/ -e s/c$$/h/ +YACCCOMPILE = $(YACC) $(AM_YFLAGS) $(YFLAGS) +LTYACCCOMPILE = $(LIBTOOL) $(AM_V_lt) $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=compile $(YACC) $(AM_YFLAGS) $(YFLAGS) +AM_V_YACC = $(am__v_YACC_@AM_V@) +am__v_YACC_ = $(am__v_YACC_@AM_DEFAULT_V@) +am__v_YACC_0 = @echo " YACC " $@; +am__v_YACC_1 = +YLWRAP = $(top_srcdir)/ylwrap SOURCES = $(libshadow_la_SOURCES) DIST_SOURCES = $(am__libshadow_la_SOURCES_DIST) am__can_run_installinfo = \ @@ -238,7 +415,8 @@ am__define_uniq_tagged_files = \ unique=`for i in $$list; do \ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \ done | $(am__uniquify_input)` -am__DIST_COMMON = $(srcdir)/Makefile.in $(top_srcdir)/depcomp +am__DIST_COMMON = $(srcdir)/Makefile.in $(top_srcdir)/depcomp \ + $(top_srcdir)/ylwrap getdate.c DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) ACLOCAL = @ACLOCAL@ AMTAR = @AMTAR@ @@ -251,6 +429,8 @@ AWK = @AWK@ CC = @CC@ CCDEPMODE = @CCDEPMODE@ CFLAGS = @CFLAGS@ +CMOCKA_CFLAGS = @CMOCKA_CFLAGS@ +CMOCKA_LIBS = @CMOCKA_LIBS@ CPP = @CPP@ CPPFLAGS = @CPPFLAGS@ CSCOPE = @CSCOPE@ @@ -269,6 +449,7 @@ EGREP = @EGREP@ ETAGS = @ETAGS@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +FILECMD = @FILECMD@ GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@ GMSGFMT = @GMSGFMT@ GMSGFMT_015 = @GMSGFMT_015@ @@ -284,9 +465,15 @@ INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@ LD = @LD@ LDFLAGS = @LDFLAGS@ LIBACL = @LIBACL@ +LIBADD_DL = @LIBADD_DL@ +LIBADD_DLD_LINK = @LIBADD_DLD_LINK@ +LIBADD_DLOPEN = @LIBADD_DLOPEN@ +LIBADD_SHL_LOAD = @LIBADD_SHL_LOAD@ LIBATTR = @LIBATTR@ LIBAUDIT = @LIBAUDIT@ -LIBCRACK = @LIBCRACK@ +LIBBSD = @LIBBSD@ +LIBBSD_CFLAGS = @LIBBSD_CFLAGS@ +LIBBSD_LIBS = @LIBBSD_LIBS@ LIBCRYPT = @LIBCRYPT@ LIBECONF = @LIBECONF@ LIBICONV = @LIBICONV@ @@ -302,6 +489,7 @@ LIBSUBID_ABI = @LIBSUBID_ABI@ LIBSUBID_ABI_MAJOR = @LIBSUBID_ABI_MAJOR@ LIBSUBID_ABI_MICRO = @LIBSUBID_ABI_MICRO@ LIBSUBID_ABI_MINOR = @LIBSUBID_ABI_MINOR@ +LIBSYSTEMD = @LIBSYSTEMD@ LIBTCB = @LIBTCB@ LIBTOOL = @LIBTOOL@ LIPO = @LIPO@ @@ -310,6 +498,8 @@ LN_S = @LN_S@ LTLIBICONV = @LTLIBICONV@ LTLIBINTL = @LTLIBINTL@ LTLIBOBJS = @LTLIBOBJS@ +LT_DLLOADERS = @LT_DLLOADERS@ +LT_DLPREOPEN = @LT_DLPREOPEN@ LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@ MAINT = @MAINT@ MAKEINFO = @MAKEINFO@ @@ -332,6 +522,9 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@ PACKAGE_URL = @PACKAGE_URL@ PACKAGE_VERSION = @PACKAGE_VERSION@ PATH_SEPARATOR = @PATH_SEPARATOR@ +PKG_CONFIG = @PKG_CONFIG@ +PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@ +PKG_CONFIG_PATH = @PKG_CONFIG_PATH@ POSUB = @POSUB@ RANLIB = @RANLIB@ SED = @SED@ @@ -405,18 +598,46 @@ top_builddir = @top_builddir@ top_srcdir = @top_srcdir@ AUTOMAKE_OPTIONS = 1.0 foreign noinst_LTLIBRARIES = libshadow.la +@USE_PAM_FALSE@LIBCRYPT_PAM = +@USE_PAM_TRUE@LIBCRYPT_PAM = $(LIBCRYPT) +AM_CPPFLAGS = -I$(top_srcdir)/lib -I$(top_srcdir) $(ECONF_CPPFLAGS) libshadow_la_CPPFLAGS = $(ECONF_CPPFLAGS) $(am__append_1) \ -I$(top_srcdir) -libshadow_la_SOURCES = commonio.c commonio.h defines.h encrypt.c \ - exitcodes.h faillog.h fields.c fputsx.c getdef.c getdef.h \ - get_gid.c getlong.c get_pid.c get_uid.c getulong.c groupio.c \ - groupmem.c groupio.h gshadow.c lockpw.c nss.c nscd.c nscd.h \ - shadowlog.c shadowlog.h shadowlog_internal.h sssd.c sssd.h \ - pam_defs.h port.c port.h prototypes.h pwauth.c pwauth.h pwio.c \ - pwio.h pwmem.c run_part.h run_part.c subordinateio.h \ - subordinateio.c selinux.c semanage.c sgetgrent.c sgetpwent.c \ - sgetspent.c sgroupio.c sgroupio.h shadow.c shadowio.c \ - shadowio.h shadowmem.c spawn.c utent.c $(am__append_2) +libshadow_la_CFLAGS = $(LIBBSD_CFLAGS) $(LIBCRYPT_PAM) $(LIBSYSTEMD) +libshadow_la_LIBADD = $(LIBADD_DLOPEN) +libshadow_la_SOURCES = addgrps.c adds.c adds.h age.c agetpass.c \ + agetpass.h alloc.c alloc.h atoi/a2i.c atoi/a2i.h atoi/str2i.c \ + atoi/str2i.h atoi/strtoi.c atoi/strtoi.h atoi/strtou_noneg.c \ + atoi/strtou_noneg.h attr.h audit_help.c basename.c bit.c bit.h \ + cast.h chkname.c chkname.h chowndir.c chowntty.c cleanup.c \ + cleanup_group.c cleanup_user.c commonio.c commonio.h console.c \ + copydir.c csrand.c defines.h encrypt.c env.c exitcodes.h \ + faillog.h failure.c failure.h fd.c fields.c find_new_gid.c \ + find_new_uid.c find_new_sub_gids.c find_new_sub_uids.c \ + fputsx.c get_gid.c get_pid.c get_uid.c getdate.h getdate.y \ + getdef.c getdef.h getgr_nam_gid.c getrange.c gettime.c \ + groupio.c groupmem.c groupio.h gshadow.c hushed.c idmapping.h \ + idmapping.c isexpired.c limits.c list.c lockpw.c loginprompt.c \ + mail.c memzero.c memzero.h motd.c must_be.h myname.c nss.c \ + nscd.c nscd.h obscure.c pam_defs.h pam_pass.c \ + pam_pass_non_interactive.c port.c port.h prefix_flag.c \ + prototypes.h pwauth.c pwauth.h pwio.c pwio.h pwd_init.c \ + pwd2spwd.c pwdcheck.c pwmem.c remove_tree.c rlogin.c \ + root_flag.c run_part.h run_part.c salt.c selinux.c semanage.c \ + setugid.c setupenv.c sgetgrent.c sgetpwent.c sgetspent.c \ + sgroupio.c sgroupio.h shadow.c shadowio.c shadowio.h \ + shadowlog.c shadowlog.h shadowlog_internal.h shadowmem.c \ + shell.c sizeof.h spawn.c sssd.c sssd.h string/sprintf.c \ + string/sprintf.h string/stpecpy.c string/stpecpy.h \ + string/stpeprintf.c string/stpeprintf.h string/strftime.c \ + string/strftime.h string/strncpy.h string/strtcpy.c \ + string/strtcpy.h string/zustr2stp.h strtoday.c sub.c \ + subordinateio.h subordinateio.c sulog.c time/day_to_str.c \ + time/day_to_str.h ttytype.c tz.c ulimit.c user_busy.c valid.c \ + write_full.c xgetpwnam.c xprefix_getpwnam.c xgetpwuid.c \ + xgetgrnam.c xgetgrgid.c xgetspnam.c yesno.c $(am__append_2) \ + $(am__append_3) $(am__append_4) $(am__append_5) \ + $(am__append_6) $(am__append_7) # These files are unneeded for some reason, listed in # order of appearance: @@ -424,12 +645,13 @@ libshadow_la_SOURCES = commonio.c commonio.h defines.h encrypt.c \ # sources for dbm support (not yet used) EXTRA_DIST = \ .indent.pro \ - gshadow_.h + gshadow_.h \ + xgetXXbyYY.c all: all-am .SUFFIXES: -.SUFFIXES: .c .lo .o .obj +.SUFFIXES: .c .lo .o .obj .y $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps) @for dep in $?; do \ case '$(am__configure_deps)' in \ @@ -470,39 +692,137 @@ clean-noinstLTLIBRARIES: echo rm -f $${locs}; \ rm -f $${locs}; \ } +atoi/$(am__dirstamp): + @$(MKDIR_P) atoi + @: > atoi/$(am__dirstamp) +atoi/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) atoi/$(DEPDIR) + @: > atoi/$(DEPDIR)/$(am__dirstamp) +atoi/libshadow_la-a2i.lo: atoi/$(am__dirstamp) \ + atoi/$(DEPDIR)/$(am__dirstamp) +atoi/libshadow_la-str2i.lo: atoi/$(am__dirstamp) \ + atoi/$(DEPDIR)/$(am__dirstamp) +atoi/libshadow_la-strtoi.lo: atoi/$(am__dirstamp) \ + atoi/$(DEPDIR)/$(am__dirstamp) +atoi/libshadow_la-strtou_noneg.lo: atoi/$(am__dirstamp) \ + atoi/$(DEPDIR)/$(am__dirstamp) +string/$(am__dirstamp): + @$(MKDIR_P) string + @: > string/$(am__dirstamp) +string/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) string/$(DEPDIR) + @: > string/$(DEPDIR)/$(am__dirstamp) +string/libshadow_la-sprintf.lo: string/$(am__dirstamp) \ + string/$(DEPDIR)/$(am__dirstamp) +string/libshadow_la-stpecpy.lo: string/$(am__dirstamp) \ + string/$(DEPDIR)/$(am__dirstamp) +string/libshadow_la-stpeprintf.lo: string/$(am__dirstamp) \ + string/$(DEPDIR)/$(am__dirstamp) +string/libshadow_la-strftime.lo: string/$(am__dirstamp) \ + string/$(DEPDIR)/$(am__dirstamp) +string/libshadow_la-strtcpy.lo: string/$(am__dirstamp) \ + string/$(DEPDIR)/$(am__dirstamp) +time/$(am__dirstamp): + @$(MKDIR_P) time + @: > time/$(am__dirstamp) +time/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) time/$(DEPDIR) + @: > time/$(DEPDIR)/$(am__dirstamp) +time/libshadow_la-day_to_str.lo: time/$(am__dirstamp) \ + time/$(DEPDIR)/$(am__dirstamp) libshadow.la: $(libshadow_la_OBJECTS) $(libshadow_la_DEPENDENCIES) $(EXTRA_libshadow_la_DEPENDENCIES) - $(AM_V_CCLD)$(LINK) $(libshadow_la_OBJECTS) $(libshadow_la_LIBADD) $(LIBS) + $(AM_V_CCLD)$(libshadow_la_LINK) $(libshadow_la_OBJECTS) $(libshadow_la_LIBADD) $(LIBS) mostlyclean-compile: -rm -f *.$(OBJEXT) + -rm -f atoi/*.$(OBJEXT) + -rm -f atoi/*.lo + -rm -f string/*.$(OBJEXT) + -rm -f string/*.lo + -rm -f time/*.$(OBJEXT) + -rm -f time/*.lo distclean-compile: -rm -f *.tab.c +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-addgrps.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-adds.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-age.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-agetpass.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-alloc.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-audit_help.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-basename.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-bit.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-btrfs.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-chkname.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-chowndir.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-chowntty.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-cleanup.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-cleanup_group.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-cleanup_user.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-commonio.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-console.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-copydir.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-csrand.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-encrypt.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-env.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-failure.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-fd.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-fields.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-find_new_gid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-find_new_sub_gids.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-find_new_sub_uids.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-find_new_uid.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-fputsx.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-freezero.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-get_gid.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-get_pid.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-get_uid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-getdate.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-getdef.Plo@am__quote@ # am--include-marker -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-getlong.Plo@am__quote@ # am--include-marker -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-getulong.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-getgr_nam_gid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-getrange.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-gettime.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-groupio.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-groupmem.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-gshadow.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-hushed.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-idmapping.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-isexpired.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-limits.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-list.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-lockpw.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-log.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-logind.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-loginprompt.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-mail.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-memzero.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-motd.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-myname.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-nscd.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-nss.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-obscure.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pam_pass.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pam_pass_non_interactive.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-port.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-prefix_flag.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pwauth.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pwd2spwd.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pwd_init.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pwdcheck.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pwio.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-pwmem.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-readpassphrase.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-remove_tree.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-rlogin.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-root_flag.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-run_part.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-salt.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-selinux.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-semanage.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-setugid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-setupenv.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-sgetgrent.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-sgetpwent.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-sgetspent.Plo@am__quote@ # am--include-marker @@ -511,11 +831,38 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-shadowio.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-shadowlog.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-shadowmem.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-shell.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-spawn.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-sssd.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-strtoday.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-sub.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-subordinateio.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-sulog.Plo@am__quote@ # am--include-marker @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-tcbfuncs.Plo@am__quote@ # am--include-marker -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-utent.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-ttytype.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-tz.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-ulimit.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-user_busy.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-utmp.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-valid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-write_full.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-xgetgrgid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-xgetgrnam.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-xgetpwnam.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-xgetpwuid.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libshadow_la-xgetspnam.Plo@am__quote@ # am--include-marker +@AMDEP_TRUE@@am__include@ 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btrfs.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -MT libshadow_la-btrfs.lo -MD -MP -MF $(DEPDIR)/libshadow_la-btrfs.Tpo -c -o libshadow_la-btrfs.lo `test -f 'btrfs.c' || echo '$(srcdir)/'`btrfs.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libshadow_la-btrfs.Tpo $(DEPDIR)/libshadow_la-btrfs.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='btrfs.c' object='libshadow_la-btrfs.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -c -o libshadow_la-btrfs.lo `test -f 'btrfs.c' || echo '$(srcdir)/'`btrfs.c + +libshadow_la-log.lo: log.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -MT libshadow_la-log.lo -MD -MP -MF $(DEPDIR)/libshadow_la-log.Tpo -c -o libshadow_la-log.lo `test -f 'log.c' || echo '$(srcdir)/'`log.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libshadow_la-log.Tpo $(DEPDIR)/libshadow_la-log.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='log.c' object='libshadow_la-log.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -c -o libshadow_la-log.lo `test -f 'log.c' || echo '$(srcdir)/'`log.c + +libshadow_la-logind.lo: logind.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -MT libshadow_la-logind.lo -MD -MP -MF $(DEPDIR)/libshadow_la-logind.Tpo -c -o libshadow_la-logind.lo `test -f 'logind.c' || echo '$(srcdir)/'`logind.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libshadow_la-logind.Tpo $(DEPDIR)/libshadow_la-logind.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='logind.c' object='libshadow_la-logind.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -c -o libshadow_la-logind.lo `test -f 'logind.c' || echo '$(srcdir)/'`logind.c + +libshadow_la-utmp.lo: utmp.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -MT libshadow_la-utmp.lo -MD -MP -MF $(DEPDIR)/libshadow_la-utmp.Tpo -c -o libshadow_la-utmp.lo `test -f 'utmp.c' || echo '$(srcdir)/'`utmp.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libshadow_la-utmp.Tpo $(DEPDIR)/libshadow_la-utmp.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='utmp.c' object='libshadow_la-utmp.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -c -o libshadow_la-utmp.lo `test -f 'utmp.c' || echo '$(srcdir)/'`utmp.c + +libshadow_la-freezero.lo: freezero.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -MT libshadow_la-freezero.lo -MD -MP -MF $(DEPDIR)/libshadow_la-freezero.Tpo -c -o libshadow_la-freezero.lo `test -f 'freezero.c' || echo '$(srcdir)/'`freezero.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libshadow_la-freezero.Tpo $(DEPDIR)/libshadow_la-freezero.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='freezero.c' object='libshadow_la-freezero.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -c -o libshadow_la-freezero.lo `test -f 'freezero.c' || echo '$(srcdir)/'`freezero.c + +libshadow_la-readpassphrase.lo: readpassphrase.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -MT libshadow_la-readpassphrase.lo -MD -MP -MF $(DEPDIR)/libshadow_la-readpassphrase.Tpo -c -o libshadow_la-readpassphrase.lo `test -f 'readpassphrase.c' || echo '$(srcdir)/'`readpassphrase.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libshadow_la-readpassphrase.Tpo $(DEPDIR)/libshadow_la-readpassphrase.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='readpassphrase.c' object='libshadow_la-readpassphrase.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libshadow_la_CPPFLAGS) $(CPPFLAGS) $(libshadow_la_CFLAGS) $(CFLAGS) -c -o libshadow_la-readpassphrase.lo `test -f 'readpassphrase.c' || echo '$(srcdir)/'`readpassphrase.c + +.y.c: + $(AM_V_YACC)$(am__skipyacc) $(SHELL) $(YLWRAP) $< y.tab.c $@ y.tab.h `echo $@ | $(am__yacc_c2h)` y.output $*.output -- $(YACCCOMPILE) mostlyclean-libtool: -rm -f *.lo clean-libtool: -rm -rf .libs _libs + -rm -rf atoi/.libs atoi/_libs + -rm -rf string/.libs string/_libs + -rm -rf time/.libs time/_libs ID: $(am__tagged_files) $(am__define_uniq_tagged_files); mkid -fID $$unique @@ -916,39 +1839,100 @@ clean-generic: distclean-generic: -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES) + -rm -f atoi/$(DEPDIR)/$(am__dirstamp) + -rm -f atoi/$(am__dirstamp) + -rm -f string/$(DEPDIR)/$(am__dirstamp) + -rm -f string/$(am__dirstamp) + -rm -f time/$(DEPDIR)/$(am__dirstamp) + -rm -f time/$(am__dirstamp) maintainer-clean-generic: @echo "This command is intended for maintainers to use" @echo "it deletes files that may require special tools to rebuild." + -rm -f getdate.c clean: clean-am clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \ mostlyclean-am distclean: distclean-am - -rm -f ./$(DEPDIR)/libshadow_la-commonio.Plo + -rm -f ./$(DEPDIR)/libshadow_la-addgrps.Plo + -rm -f ./$(DEPDIR)/libshadow_la-adds.Plo + -rm -f ./$(DEPDIR)/libshadow_la-age.Plo + -rm -f ./$(DEPDIR)/libshadow_la-agetpass.Plo + -rm -f ./$(DEPDIR)/libshadow_la-alloc.Plo + -rm -f ./$(DEPDIR)/libshadow_la-audit_help.Plo + -rm -f ./$(DEPDIR)/libshadow_la-basename.Plo + -rm -f ./$(DEPDIR)/libshadow_la-bit.Plo + -rm -f ./$(DEPDIR)/libshadow_la-btrfs.Plo + -rm -f ./$(DEPDIR)/libshadow_la-chkname.Plo + -rm -f ./$(DEPDIR)/libshadow_la-chowndir.Plo + -rm -f ./$(DEPDIR)/libshadow_la-chowntty.Plo + -rm -f ./$(DEPDIR)/libshadow_la-cleanup.Plo + -rm -f ./$(DEPDIR)/libshadow_la-cleanup_group.Plo + -rm -f ./$(DEPDIR)/libshadow_la-cleanup_user.Plo + -rm -f ./$(DEPDIR)/libshadow_la-commonio.Plo + -rm -f ./$(DEPDIR)/libshadow_la-console.Plo + -rm -f ./$(DEPDIR)/libshadow_la-copydir.Plo + -rm -f ./$(DEPDIR)/libshadow_la-csrand.Plo -rm -f ./$(DEPDIR)/libshadow_la-encrypt.Plo + -rm -f ./$(DEPDIR)/libshadow_la-env.Plo + -rm -f ./$(DEPDIR)/libshadow_la-failure.Plo + -rm -f ./$(DEPDIR)/libshadow_la-fd.Plo -rm -f ./$(DEPDIR)/libshadow_la-fields.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_gid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_sub_gids.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_sub_uids.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_uid.Plo -rm -f ./$(DEPDIR)/libshadow_la-fputsx.Plo + -rm -f ./$(DEPDIR)/libshadow_la-freezero.Plo -rm -f ./$(DEPDIR)/libshadow_la-get_gid.Plo -rm -f ./$(DEPDIR)/libshadow_la-get_pid.Plo -rm -f ./$(DEPDIR)/libshadow_la-get_uid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-getdate.Plo -rm -f ./$(DEPDIR)/libshadow_la-getdef.Plo - -rm -f ./$(DEPDIR)/libshadow_la-getlong.Plo - -rm -f ./$(DEPDIR)/libshadow_la-getulong.Plo + -rm -f ./$(DEPDIR)/libshadow_la-getgr_nam_gid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-getrange.Plo + -rm -f ./$(DEPDIR)/libshadow_la-gettime.Plo -rm -f ./$(DEPDIR)/libshadow_la-groupio.Plo -rm -f ./$(DEPDIR)/libshadow_la-groupmem.Plo -rm -f ./$(DEPDIR)/libshadow_la-gshadow.Plo + -rm -f ./$(DEPDIR)/libshadow_la-hushed.Plo + -rm -f ./$(DEPDIR)/libshadow_la-idmapping.Plo + -rm -f ./$(DEPDIR)/libshadow_la-isexpired.Plo + -rm -f ./$(DEPDIR)/libshadow_la-limits.Plo + -rm -f ./$(DEPDIR)/libshadow_la-list.Plo -rm -f ./$(DEPDIR)/libshadow_la-lockpw.Plo + -rm -f ./$(DEPDIR)/libshadow_la-log.Plo + -rm -f ./$(DEPDIR)/libshadow_la-logind.Plo + -rm -f ./$(DEPDIR)/libshadow_la-loginprompt.Plo + -rm -f ./$(DEPDIR)/libshadow_la-mail.Plo + -rm -f ./$(DEPDIR)/libshadow_la-memzero.Plo + -rm -f ./$(DEPDIR)/libshadow_la-motd.Plo + -rm -f ./$(DEPDIR)/libshadow_la-myname.Plo -rm -f ./$(DEPDIR)/libshadow_la-nscd.Plo -rm -f ./$(DEPDIR)/libshadow_la-nss.Plo + -rm -f ./$(DEPDIR)/libshadow_la-obscure.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pam_pass.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pam_pass_non_interactive.Plo -rm -f ./$(DEPDIR)/libshadow_la-port.Plo + -rm -f ./$(DEPDIR)/libshadow_la-prefix_flag.Plo -rm -f ./$(DEPDIR)/libshadow_la-pwauth.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pwd2spwd.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pwd_init.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pwdcheck.Plo -rm -f ./$(DEPDIR)/libshadow_la-pwio.Plo -rm -f ./$(DEPDIR)/libshadow_la-pwmem.Plo + -rm -f ./$(DEPDIR)/libshadow_la-readpassphrase.Plo + -rm -f ./$(DEPDIR)/libshadow_la-remove_tree.Plo + -rm -f ./$(DEPDIR)/libshadow_la-rlogin.Plo + -rm -f ./$(DEPDIR)/libshadow_la-root_flag.Plo -rm -f ./$(DEPDIR)/libshadow_la-run_part.Plo + -rm -f ./$(DEPDIR)/libshadow_la-salt.Plo -rm -f ./$(DEPDIR)/libshadow_la-selinux.Plo -rm -f ./$(DEPDIR)/libshadow_la-semanage.Plo + -rm -f ./$(DEPDIR)/libshadow_la-setugid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-setupenv.Plo -rm -f ./$(DEPDIR)/libshadow_la-sgetgrent.Plo -rm -f ./$(DEPDIR)/libshadow_la-sgetpwent.Plo -rm -f ./$(DEPDIR)/libshadow_la-sgetspent.Plo @@ -957,11 +1941,38 @@ distclean: distclean-am -rm -f ./$(DEPDIR)/libshadow_la-shadowio.Plo -rm -f ./$(DEPDIR)/libshadow_la-shadowlog.Plo -rm -f ./$(DEPDIR)/libshadow_la-shadowmem.Plo + -rm -f ./$(DEPDIR)/libshadow_la-shell.Plo -rm -f ./$(DEPDIR)/libshadow_la-spawn.Plo -rm -f ./$(DEPDIR)/libshadow_la-sssd.Plo + -rm -f ./$(DEPDIR)/libshadow_la-strtoday.Plo + -rm -f ./$(DEPDIR)/libshadow_la-sub.Plo -rm -f ./$(DEPDIR)/libshadow_la-subordinateio.Plo + -rm -f ./$(DEPDIR)/libshadow_la-sulog.Plo -rm -f ./$(DEPDIR)/libshadow_la-tcbfuncs.Plo - -rm -f ./$(DEPDIR)/libshadow_la-utent.Plo + -rm -f ./$(DEPDIR)/libshadow_la-ttytype.Plo + -rm -f ./$(DEPDIR)/libshadow_la-tz.Plo + -rm -f ./$(DEPDIR)/libshadow_la-ulimit.Plo + -rm -f ./$(DEPDIR)/libshadow_la-user_busy.Plo + -rm -f ./$(DEPDIR)/libshadow_la-utmp.Plo + -rm -f ./$(DEPDIR)/libshadow_la-valid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-write_full.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetgrgid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetgrnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetpwnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetpwuid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetspnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xprefix_getpwnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-yesno.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-a2i.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-str2i.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-strtoi.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-strtou_noneg.Plo + -rm -f string/$(DEPDIR)/libshadow_la-sprintf.Plo + -rm -f string/$(DEPDIR)/libshadow_la-stpecpy.Plo + -rm -f string/$(DEPDIR)/libshadow_la-stpeprintf.Plo + -rm -f string/$(DEPDIR)/libshadow_la-strftime.Plo + -rm -f string/$(DEPDIR)/libshadow_la-strtcpy.Plo + -rm -f time/$(DEPDIR)/libshadow_la-day_to_str.Plo -rm -f Makefile distclean-am: clean-am distclean-compile distclean-generic \ distclean-tags @@ -1007,29 +2018,83 @@ install-ps-am: installcheck-am: maintainer-clean: maintainer-clean-am - -rm -f ./$(DEPDIR)/libshadow_la-commonio.Plo + -rm -f ./$(DEPDIR)/libshadow_la-addgrps.Plo + -rm -f ./$(DEPDIR)/libshadow_la-adds.Plo + -rm -f ./$(DEPDIR)/libshadow_la-age.Plo + -rm -f ./$(DEPDIR)/libshadow_la-agetpass.Plo + -rm -f ./$(DEPDIR)/libshadow_la-alloc.Plo + -rm -f ./$(DEPDIR)/libshadow_la-audit_help.Plo + -rm -f ./$(DEPDIR)/libshadow_la-basename.Plo + -rm -f ./$(DEPDIR)/libshadow_la-bit.Plo + -rm -f ./$(DEPDIR)/libshadow_la-btrfs.Plo + -rm -f ./$(DEPDIR)/libshadow_la-chkname.Plo + -rm -f ./$(DEPDIR)/libshadow_la-chowndir.Plo + -rm -f ./$(DEPDIR)/libshadow_la-chowntty.Plo + -rm -f ./$(DEPDIR)/libshadow_la-cleanup.Plo + -rm -f ./$(DEPDIR)/libshadow_la-cleanup_group.Plo + -rm -f ./$(DEPDIR)/libshadow_la-cleanup_user.Plo + -rm -f ./$(DEPDIR)/libshadow_la-commonio.Plo + -rm -f ./$(DEPDIR)/libshadow_la-console.Plo + -rm -f ./$(DEPDIR)/libshadow_la-copydir.Plo + -rm -f ./$(DEPDIR)/libshadow_la-csrand.Plo -rm -f ./$(DEPDIR)/libshadow_la-encrypt.Plo + -rm -f ./$(DEPDIR)/libshadow_la-env.Plo + -rm -f ./$(DEPDIR)/libshadow_la-failure.Plo + -rm -f ./$(DEPDIR)/libshadow_la-fd.Plo -rm -f ./$(DEPDIR)/libshadow_la-fields.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_gid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_sub_gids.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_sub_uids.Plo + -rm -f ./$(DEPDIR)/libshadow_la-find_new_uid.Plo -rm -f ./$(DEPDIR)/libshadow_la-fputsx.Plo + -rm -f ./$(DEPDIR)/libshadow_la-freezero.Plo -rm -f ./$(DEPDIR)/libshadow_la-get_gid.Plo -rm -f ./$(DEPDIR)/libshadow_la-get_pid.Plo -rm -f ./$(DEPDIR)/libshadow_la-get_uid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-getdate.Plo -rm -f ./$(DEPDIR)/libshadow_la-getdef.Plo - -rm -f ./$(DEPDIR)/libshadow_la-getlong.Plo - -rm -f ./$(DEPDIR)/libshadow_la-getulong.Plo + -rm -f ./$(DEPDIR)/libshadow_la-getgr_nam_gid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-getrange.Plo + -rm -f ./$(DEPDIR)/libshadow_la-gettime.Plo -rm -f ./$(DEPDIR)/libshadow_la-groupio.Plo -rm -f ./$(DEPDIR)/libshadow_la-groupmem.Plo -rm -f ./$(DEPDIR)/libshadow_la-gshadow.Plo + -rm -f ./$(DEPDIR)/libshadow_la-hushed.Plo + -rm -f ./$(DEPDIR)/libshadow_la-idmapping.Plo + -rm -f ./$(DEPDIR)/libshadow_la-isexpired.Plo + -rm -f ./$(DEPDIR)/libshadow_la-limits.Plo + -rm -f ./$(DEPDIR)/libshadow_la-list.Plo -rm -f ./$(DEPDIR)/libshadow_la-lockpw.Plo + -rm -f ./$(DEPDIR)/libshadow_la-log.Plo + -rm -f ./$(DEPDIR)/libshadow_la-logind.Plo + -rm -f ./$(DEPDIR)/libshadow_la-loginprompt.Plo + -rm -f ./$(DEPDIR)/libshadow_la-mail.Plo + -rm -f ./$(DEPDIR)/libshadow_la-memzero.Plo + -rm -f ./$(DEPDIR)/libshadow_la-motd.Plo + -rm -f ./$(DEPDIR)/libshadow_la-myname.Plo -rm -f ./$(DEPDIR)/libshadow_la-nscd.Plo -rm -f ./$(DEPDIR)/libshadow_la-nss.Plo + -rm -f ./$(DEPDIR)/libshadow_la-obscure.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pam_pass.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pam_pass_non_interactive.Plo -rm -f ./$(DEPDIR)/libshadow_la-port.Plo + -rm -f ./$(DEPDIR)/libshadow_la-prefix_flag.Plo -rm -f ./$(DEPDIR)/libshadow_la-pwauth.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pwd2spwd.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pwd_init.Plo + -rm -f ./$(DEPDIR)/libshadow_la-pwdcheck.Plo -rm -f ./$(DEPDIR)/libshadow_la-pwio.Plo -rm -f ./$(DEPDIR)/libshadow_la-pwmem.Plo + -rm -f ./$(DEPDIR)/libshadow_la-readpassphrase.Plo + -rm -f ./$(DEPDIR)/libshadow_la-remove_tree.Plo + -rm -f ./$(DEPDIR)/libshadow_la-rlogin.Plo + -rm -f ./$(DEPDIR)/libshadow_la-root_flag.Plo -rm -f ./$(DEPDIR)/libshadow_la-run_part.Plo + -rm -f ./$(DEPDIR)/libshadow_la-salt.Plo -rm -f ./$(DEPDIR)/libshadow_la-selinux.Plo -rm -f ./$(DEPDIR)/libshadow_la-semanage.Plo + -rm -f ./$(DEPDIR)/libshadow_la-setugid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-setupenv.Plo -rm -f ./$(DEPDIR)/libshadow_la-sgetgrent.Plo -rm -f ./$(DEPDIR)/libshadow_la-sgetpwent.Plo -rm -f ./$(DEPDIR)/libshadow_la-sgetspent.Plo @@ -1038,11 +2103,38 @@ maintainer-clean: maintainer-clean-am -rm -f ./$(DEPDIR)/libshadow_la-shadowio.Plo -rm -f ./$(DEPDIR)/libshadow_la-shadowlog.Plo -rm -f ./$(DEPDIR)/libshadow_la-shadowmem.Plo + -rm -f ./$(DEPDIR)/libshadow_la-shell.Plo -rm -f ./$(DEPDIR)/libshadow_la-spawn.Plo -rm -f ./$(DEPDIR)/libshadow_la-sssd.Plo + -rm -f ./$(DEPDIR)/libshadow_la-strtoday.Plo + -rm -f ./$(DEPDIR)/libshadow_la-sub.Plo -rm -f ./$(DEPDIR)/libshadow_la-subordinateio.Plo + -rm -f ./$(DEPDIR)/libshadow_la-sulog.Plo -rm -f ./$(DEPDIR)/libshadow_la-tcbfuncs.Plo - -rm -f ./$(DEPDIR)/libshadow_la-utent.Plo + -rm -f ./$(DEPDIR)/libshadow_la-ttytype.Plo + -rm -f ./$(DEPDIR)/libshadow_la-tz.Plo + -rm -f ./$(DEPDIR)/libshadow_la-ulimit.Plo + -rm -f ./$(DEPDIR)/libshadow_la-user_busy.Plo + -rm -f ./$(DEPDIR)/libshadow_la-utmp.Plo + -rm -f ./$(DEPDIR)/libshadow_la-valid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-write_full.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetgrgid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetgrnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetpwnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetpwuid.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xgetspnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-xprefix_getpwnam.Plo + -rm -f ./$(DEPDIR)/libshadow_la-yesno.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-a2i.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-str2i.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-strtoi.Plo + -rm -f atoi/$(DEPDIR)/libshadow_la-strtou_noneg.Plo + -rm -f string/$(DEPDIR)/libshadow_la-sprintf.Plo + -rm -f string/$(DEPDIR)/libshadow_la-stpecpy.Plo + -rm -f string/$(DEPDIR)/libshadow_la-stpeprintf.Plo + -rm -f string/$(DEPDIR)/libshadow_la-strftime.Plo + -rm -f string/$(DEPDIR)/libshadow_la-strtcpy.Plo + -rm -f time/$(DEPDIR)/libshadow_la-day_to_str.Plo -rm -f Makefile maintainer-clean-am: distclean-am maintainer-clean-generic diff --git a/libmisc/addgrps.c b/lib/addgrps.c index 845d383..dae3dba 100644 --- a/libmisc/addgrps.c +++ b/lib/addgrps.c @@ -17,6 +17,8 @@ #include <stdio.h> #include <grp.h> #include <errno.h> + +#include "alloc.h" #include "shadowlog.h" #ident "$Id$" @@ -29,7 +31,7 @@ */ int add_groups (const char *list) { - GETGROUPS_T *grouplist, *tmp; + GETGROUPS_T *grouplist; size_t i; int ngroups; bool added; @@ -46,7 +48,7 @@ int add_groups (const char *list) i = 16; for (;;) { - grouplist = (gid_t *) malloc (i * sizeof (GETGROUPS_T)); + grouplist = MALLOC(i, GETGROUPS_T); if (NULL == grouplist) { return -1; } @@ -88,19 +90,17 @@ int add_groups (const char *list) fputs (_("Warning: too many groups\n"), shadow_logfd); break; } - tmp = (gid_t *) realloc (grouplist, (size_t)(ngroups + 1) * sizeof (GETGROUPS_T)); - if (NULL == tmp) { - free (grouplist); + grouplist = REALLOCF(grouplist, (size_t) ngroups + 1, GETGROUPS_T); + if (grouplist == NULL) { return -1; } - tmp[ngroups] = grp->gr_gid; + grouplist[ngroups] = grp->gr_gid; ngroups++; - grouplist = tmp; added = true; } if (added) { - ret = setgroups ((size_t)ngroups, grouplist); + ret = setgroups (ngroups, grouplist); free (grouplist); return ret; } @@ -109,6 +109,6 @@ int add_groups (const char *list) return 0; } #else /* HAVE_SETGROUPS && !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* HAVE_SETGROUPS && !USE_PAM */ diff --git a/lib/adds.c b/lib/adds.c new file mode 100644 index 0000000..5d8c153 --- /dev/null +++ b/lib/adds.c @@ -0,0 +1,15 @@ +// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "adds.h" + +#include <stddef.h> + + +extern inline long addsl2(long a, long b); +extern inline long addslN(size_t n, long addend[n]); + +extern inline int cmpl(const void *p1, const void *p2); diff --git a/lib/adds.h b/lib/adds.h new file mode 100644 index 0000000..6544ce5 --- /dev/null +++ b/lib/adds.h @@ -0,0 +1,86 @@ +// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_ADDS_H_ +#define SHADOW_INCLUDE_LIB_ADDS_H_ + + +#include <config.h> + +#include <errno.h> +#include <limits.h> +#include <stddef.h> +#include <stdlib.h> + +#include "sizeof.h" + + +#define addsl(a, b, ...) \ +({ \ + long addend_[] = {a, b, __VA_ARGS__}; \ + \ + addslN(NITEMS(addend_), addend_); \ +}) + + +inline long addsl2(long a, long b); +inline long addslN(size_t n, long addend[n]); + +inline int cmpl(const void *p1, const void *p2); + + +inline long +addsl2(long a, long b) +{ + if (a > 0 && b > LONG_MAX - a) { + errno = EOVERFLOW; + return LONG_MAX; + } + if (a < 0 && b < LONG_MIN - a) { + errno = EOVERFLOW; + return LONG_MIN; + } + return a + b; +} + + +inline long +addslN(size_t n, long addend[n]) +{ + int e; + + if (n == 0) { + errno = EDOM; + return 0; + } + + e = errno; + while (n > 1) { + qsort(addend, n, sizeof(addend[0]), cmpl); + + errno = 0; + addend[0] = addsl2(addend[0], addend[--n]); + if (errno == EOVERFLOW) + return addend[0]; + } + errno = e; + return addend[0]; +} + + +inline int +cmpl(const void *p1, const void *p2) +{ + const long *l1 = p1; + const long *l2 = p2; + + if (*l1 < *l2) + return -1; + if (*l1 > *l2) + return +1; + return 0; +} + + +#endif // include guard diff --git a/libmisc/age.c b/lib/age.c index d10f71b..72a13ea 100644 --- a/libmisc/age.c +++ b/lib/age.c @@ -13,12 +13,15 @@ #include <stdio.h> #include <time.h> #include <errno.h> -#include "prototypes.h" -#include "defines.h" -#include "exitcodes.h" #include <pwd.h> #include <grp.h> +#include "adds.h" +#include "defines.h" +#include "exitcodes.h" +#include "prototypes.h" + + #ident "$Id$" #ifndef PASSWD_PROGRAM @@ -112,7 +115,7 @@ int expire (const struct passwd *pw, /*@null@*/const struct spwd *sp) _exit (126); } - (void) execl (PASSWD_PROGRAM, PASSWD_PROGRAM, pw->pw_name, (char *) 0); + (void) execl (PASSWD_PROGRAM, PASSWD_PROGRAM, pw->pw_name, (char *) NULL); err = errno; perror ("Can't execute " PASSWD_PROGRAM); _exit ((ENOENT == err) ? E_CMD_NOTFOUND : E_CMD_NOEXEC); @@ -139,7 +142,7 @@ int expire (const struct passwd *pw, /*@null@*/const struct spwd *sp) void agecheck (/*@null@*/const struct spwd *sp) { - long now = (long) time ((time_t *) 0) / SCALE; + long now = time(NULL) / DAY; long remain; if (NULL == sp) { @@ -162,9 +165,9 @@ void agecheck (/*@null@*/const struct spwd *sp) return; } - remain = sp->sp_lstchg + sp->sp_max - now; + remain = addsl(sp->sp_lstchg, sp->sp_max, -now); + if (remain <= sp->sp_warn) { - remain /= DAY / SCALE; if (remain > 1) { (void) printf (_("Your password will expire in %ld days.\n"), remain); diff --git a/lib/agetpass.c b/lib/agetpass.c new file mode 100644 index 0000000..5d9f928 --- /dev/null +++ b/lib/agetpass.c @@ -0,0 +1,145 @@ +/* + * SPDX-FileCopyrightText: 2022, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#include "agetpass.h" + +#include <limits.h> +#include <readpassphrase.h> +#include <stdlib.h> +#include <string.h> + +#ident "$Id$" + +#include "alloc.h" + +#if WITH_LIBBSD == 0 +#include "freezero.h" +#endif /* WITH_LIBBSD */ + + +/* + * SYNOPSIS + * [[gnu::malloc(erase_pass)]] + * char *agetpass(const char *prompt); + * char *agetpass_stdin(); + * + * void erase_pass(char *pass); + * + * ARGUMENTS + * agetpass() + * prompt String to be printed before reading a password. + * + * erase_pass() + * pass password previously returned by agetpass(). + * + * DESCRIPTION + * agetpass() + * This function is very similar to getpass(3). It has several + * advantages compared to getpass(3): + * + * - Instead of using a static buffer, agetpass() allocates memory + * through malloc(3). This makes the function thread-safe, and + * also reduces the visibility of the buffer. + * + * - agetpass() doesn't reallocate internally. Some + * implementations of getpass(3), such as glibc, do that, as a + * consequence of calling getline(3). That's a bug in glibc, + * which allows leaking prefixes of passwords in freed memory. + * + * - agetpass() doesn't overrun the output buffer. If the input + * password is too long, it simply fails. Some implementations + * of getpass(3), share the same bug that gets(3) has. + * + * As soon as possible, the password obtained from agetpass() be + * erased by calling erase_pass(), to avoid possibly leaking the + * password. + * + * agetpass_stdin() + * This function is the same as previous one (agetpass). Just the + * password is read from stdin and terminal is not required. + * + * erase_pass() + * This function first clears the password, by calling + * explicit_bzero(3) (or an equivalent call), and then frees the + * allocated memory by calling free(3). + * + * NULL is a valid input pointer, and in such a case, this call is + * a no-op. + * + * RETURN VALUE + * agetpass() returns a newly allocated buffer containing the + * password on success. On error, errno is set to indicate the + * error, and NULL is returned. + * + * ERRORS + * agetpass() + * This function may fail for any errors that malloc(3) or + * readpassphrase(3) may fail, and in addition it may fail for the + * following errors: + * + * ENOBUFS + * The input password was longer than PASS_MAX. + * + * CAVEATS + * If a password is passed twice to erase_pass(), the behavior is + * undefined. + */ + + +static char * +agetpass_internal(const char *prompt, int flags) +{ + char *pass; + size_t len; + + /* + * Since we want to support passwords upto PASS_MAX, we need + * PASS_MAX bytes for the password itself, and one more byte for + * the terminating '\0'. We also want to detect truncation, and + * readpassphrase(3) doesn't detect it, so we need some trick. + * Let's add one more byte, and if the password uses it, it + * means the introduced password was longer than PASS_MAX. + */ + pass = MALLOC(PASS_MAX + 2, char); + if (pass == NULL) + return NULL; + + if (readpassphrase(prompt, pass, PASS_MAX + 2, flags) == NULL) + goto fail; + + len = strlen(pass); + if (len == PASS_MAX + 1) { + errno = ENOBUFS; + goto fail; + } + + return pass; + +fail: + freezero(pass, PASS_MAX + 2); + return NULL; +} + +char * +agetpass(const char *prompt) +{ + return agetpass_internal(prompt, RPP_REQUIRE_TTY); +} + +char * +agetpass_stdin() +{ + return agetpass_internal(NULL, RPP_STDIN); +} + +void +erase_pass(char *pass) +{ + freezero(pass, PASS_MAX + 2); +} diff --git a/lib/agetpass.h b/lib/agetpass.h new file mode 100644 index 0000000..4a4444e --- /dev/null +++ b/lib/agetpass.h @@ -0,0 +1,23 @@ +/* + * SPDX-FileCopyrightText: 2022-2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_AGETPASS_H_ +#define SHADOW_INCLUDE_LIB_AGETPASS_H_ + + +#include <config.h> + +#include "attr.h" +#include "defines.h" + + +void erase_pass(char *pass); +ATTR_MALLOC(erase_pass) +char *agetpass(const char *prompt); +char *agetpass_stdin(); + + +#endif // include guard diff --git a/libmisc/xmalloc.c b/lib/alloc.c index 056d472..962f45a 100644 --- a/libmisc/xmalloc.c +++ b/lib/alloc.c @@ -3,6 +3,7 @@ * SPDX-FileCopyrightText: 1996 - 1998, Marek Michałkiewicz * SPDX-FileCopyrightText: 2003 - 2006, Tomasz Kłoczko * SPDX-FileCopyrightText: 2008 , Nicolas François + * SPDX-FileCopyrightText: 2023 , Alejandro Colomar <alx@kernel.org> * * SPDX-License-Identifier: BSD-3-Clause */ @@ -11,7 +12,7 @@ to be worth copyrighting :-). I did that because a lot of code used malloc and strdup without checking for NULL pointer, and I like some message better than a core dump... --marekm - + Yeh, but. Remember that bailing out might leave the system in some bizarre state. You really want to put in error checking, then add some back-out failure recovery code. -- jfh */ @@ -20,27 +21,53 @@ #ident "$Id$" -#include <stdio.h> +#include "alloc.h" + #include <errno.h> +#include <stddef.h> +#include <stdio.h> + #include "defines.h" #include "prototypes.h" #include "shadowlog.h" -/*@maynotreturn@*/ /*@only@*//*@out@*//*@notnull@*/void *xmalloc (size_t size) + +extern inline void *xmalloc(size_t size); +extern inline void *xmallocarray(size_t nmemb, size_t size); +extern inline void *mallocarray(size_t nmemb, size_t size); +extern inline void *reallocarrayf(void *p, size_t nmemb, size_t size); +extern inline char *xstrdup(const char *str); + + +void * +xcalloc(size_t nmemb, size_t size) { - void *ptr; - - ptr = malloc (size); - if (NULL == ptr) { - (void) fprintf (log_get_logfd(), - _("%s: failed to allocate memory: %s\n"), - log_get_progname(), strerror (errno)); - exit (13); - } - return ptr; + void *p; + + p = calloc(nmemb, size); + if (p == NULL) + goto x; + + return p; + +x: + fprintf(log_get_logfd(), _("%s: %s\n"), + log_get_progname(), strerror(errno)); + exit(13); } -/*@maynotreturn@*/ /*@only@*//*@notnull@*/char *xstrdup (const char *str) + +void * +xreallocarray(void *p, size_t nmemb, size_t size) { - return strcpy (xmalloc (strlen (str) + 1), str); + p = reallocarrayf(p, nmemb, size); + if (p == NULL) + goto x; + + return p; + +x: + fprintf(log_get_logfd(), _("%s: %s\n"), + log_get_progname(), strerror(errno)); + exit(13); } diff --git a/lib/alloc.h b/lib/alloc.h new file mode 100644 index 0000000..39405a5 --- /dev/null +++ b/lib/alloc.h @@ -0,0 +1,101 @@ +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_MALLOC_H_ +#define SHADOW_INCLUDE_LIB_MALLOC_H_ + + +#include <config.h> + +#include <assert.h> +#include <errno.h> +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> + +#include "attr.h" +#include "defines.h" + + +#define CALLOC(n, type) ((type *) calloc(n, sizeof(type))) +#define XCALLOC(n, type) ((type *) xcalloc(n, sizeof(type))) +#define MALLOC(n, type) ((type *) mallocarray(n, sizeof(type))) +#define XMALLOC(n, type) ((type *) xmallocarray(n, sizeof(type))) + +#define REALLOC(ptr, n, type) \ +( \ + _Generic(ptr, type *: (type *) reallocarray(ptr, n, sizeof(type))) \ +) + +#define REALLOCF(ptr, n, type) \ +( \ + _Generic(ptr, type *: (type *) reallocarrayf(ptr, n, sizeof(type))) \ +) + +#define XREALLOC(ptr, n, type) \ +( \ + _Generic(ptr, type *: (type *) xreallocarray(ptr, n, sizeof(type))) \ +) + + +ATTR_MALLOC(free) +inline void *xmalloc(size_t size); +ATTR_MALLOC(free) +inline void *xmallocarray(size_t nmemb, size_t size); +ATTR_MALLOC(free) +inline void *mallocarray(size_t nmemb, size_t size); +ATTR_MALLOC(free) +inline void *reallocarrayf(void *p, size_t nmemb, size_t size); +ATTR_MALLOC(free) +inline char *xstrdup(const char *str); + +ATTR_MALLOC(free) +void *xcalloc(size_t nmemb, size_t size); +ATTR_MALLOC(free) +void *xreallocarray(void *p, size_t nmemb, size_t size); + + +inline void * +xmalloc(size_t size) +{ + return xmallocarray(1, size); +} + + +inline void * +xmallocarray(size_t nmemb, size_t size) +{ + return xreallocarray(NULL, nmemb, size); +} + + +inline void * +mallocarray(size_t nmemb, size_t size) +{ + return reallocarray(NULL, nmemb, size); +} + + +inline void * +reallocarrayf(void *p, size_t nmemb, size_t size) +{ + void *q; + + q = reallocarray(p, nmemb, size); + + /* realloc(p, 0) is equivalent to free(p); avoid double free. */ + if (q == NULL && nmemb != 0 && size != 0) + free(p); + return q; +} + + +inline char * +xstrdup(const char *str) +{ + return strcpy(XMALLOC(strlen(str) + 1, char), str); +} + + +#endif // include guard diff --git a/lib/atoi/a2i.c b/lib/atoi/a2i.c new file mode 100644 index 0000000..a2cf872 --- /dev/null +++ b/lib/atoi/a2i.c @@ -0,0 +1,46 @@ +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "atoi/a2i.h" + + +extern inline int a2sh_c(short *restrict n, const char *s, + const char **restrict endp, int base, short min, short max); +extern inline int a2si_c(int *restrict n, const char *s, + const char **restrict endp, int base, int min, int max); +extern inline int a2sl_c(long *restrict n, const char *s, + const char **restrict endp, int base, long min, long max); +extern inline int a2sll_c(long long *restrict n, const char *s, + const char **restrict endp, int base, long long min, long long max); +extern inline int a2uh_c(unsigned short *restrict n, const char *s, + const char **restrict endp, int base, unsigned short min, + unsigned short max); +extern inline int a2ui_c(unsigned int *restrict n, const char *s, + const char **restrict endp, int base, unsigned int min, unsigned int max); +extern inline int a2ul_c(unsigned long *restrict n, const char *s, + const char **restrict endp, int base, unsigned long min, unsigned long max); +extern inline int a2ull_c(unsigned long long *restrict n, const char *s, + const char **restrict endp, int base, unsigned long long min, + unsigned long long max); + + +extern inline int a2sh_nc(short *restrict n, char *s, + char **restrict endp, int base, short min, short max); +extern inline int a2si_nc(int *restrict n, char *s, + char **restrict endp, int base, int min, int max); +extern inline int a2sl_nc(long *restrict n, char *s, + char **restrict endp, int base, long min, long max); +extern inline int a2sll_nc(long long *restrict n, char *s, + char **restrict endp, int base, long long min, long long max); +extern inline int a2uh_nc(unsigned short *restrict n, char *s, + char **restrict endp, int base, unsigned short min, unsigned short max); +extern inline int a2ui_nc(unsigned int *restrict n, char *s, + char **restrict endp, int base, unsigned int min, unsigned int max); +extern inline int a2ul_nc(unsigned long *restrict n, char *s, + char **restrict endp, int base, unsigned long min, unsigned long max); +extern inline int a2ull_nc(unsigned long long *restrict n, char *s, + char **restrict endp, int base, unsigned long long min, + unsigned long long max); diff --git a/lib/atoi/a2i.h b/lib/atoi/a2i.h new file mode 100644 index 0000000..64f775a --- /dev/null +++ b/lib/atoi/a2i.h @@ -0,0 +1,386 @@ +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_ATOI_A2I_H_ +#define SHADOW_INCLUDE_LIB_ATOI_A2I_H_ + + +#include <config.h> + +#include <errno.h> + +#include "atoi/strtoi.h" +#include "atoi/strtou_noneg.h" +#include "attr.h" + + +/* + * See the manual of these macros in liba2i's documentation: + * <http://www.alejandro-colomar.es/share/dist/liba2i/git/HEAD/liba2i-HEAD.pdf> + */ + + +#define a2i(TYPE, n, s, ...) \ +( \ + _Generic((void (*)(TYPE, typeof(s))) 0, \ + void (*)(short, const char *): a2sh_c, \ + void (*)(short, const void *): a2sh_c, \ + void (*)(short, char *): a2sh_nc, \ + void (*)(short, void *): a2sh_nc, \ + void (*)(int, const char *): a2si_c, \ + void (*)(int, const void *): a2si_c, \ + void (*)(int, char *): a2si_nc, \ + void (*)(int, void *): a2si_nc, \ + void (*)(long, const char *): a2sl_c, \ + void (*)(long, const void *): a2sl_c, \ + void (*)(long, char *): a2sl_nc, \ + void (*)(long, void *): a2sl_nc, \ + void (*)(long long, const char *): a2sll_c, \ + void (*)(long long, const void *): a2sll_c, \ + void (*)(long long, char *): a2sll_nc, \ + void (*)(long long, void *): a2sll_nc, \ + void (*)(unsigned short, const char *): a2uh_c, \ + void (*)(unsigned short, const void *): a2uh_c, \ + void (*)(unsigned short, char *): a2uh_nc, \ + void (*)(unsigned short, void *): a2uh_nc, \ + void (*)(unsigned int, const char *): a2ui_c, \ + void (*)(unsigned int, const void *): a2ui_c, \ + void (*)(unsigned int, char *): a2ui_nc, \ + void (*)(unsigned int, void *): a2ui_nc, \ + void (*)(unsigned long, const char *): a2ul_c, \ + void (*)(unsigned long, const void *): a2ul_c, \ + void (*)(unsigned long, char *): a2ul_nc, \ + void (*)(unsigned long, void *): a2ul_nc, \ + void (*)(unsigned long long, const char *): a2ull_c, \ + void (*)(unsigned long long, const void *): a2ull_c, \ + void (*)(unsigned long long, char *): a2ull_nc, \ + void (*)(unsigned long long, void *): a2ull_nc \ + )(n, s, __VA_ARGS__) \ +) + + +#define a2sh(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2sh_c, \ + const void *: a2sh_c, \ + char *: a2sh_nc, \ + void *: a2sh_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2si(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2si_c, \ + const void *: a2si_c, \ + char *: a2si_nc, \ + void *: a2si_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2sl(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2sl_c, \ + const void *: a2sl_c, \ + char *: a2sl_nc, \ + void *: a2sl_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2sll(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2sll_c, \ + const void *: a2sll_c, \ + char *: a2sll_nc, \ + void *: a2sll_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2uh(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2uh_c, \ + const void *: a2uh_c, \ + char *: a2uh_nc, \ + void *: a2uh_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2ui(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2ui_c, \ + const void *: a2ui_c, \ + char *: a2ui_nc, \ + void *: a2ui_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2ul(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2ul_c, \ + const void *: a2ul_c, \ + char *: a2ul_nc, \ + void *: a2ul_nc \ + )(n, s, __VA_ARGS__) \ +) + +#define a2ull(n, s, ...) \ +( \ + _Generic(s, \ + const char *: a2ull_c, \ + const void *: a2ull_c, \ + char *: a2ull_nc, \ + void *: a2ull_nc \ + )(n, s, __VA_ARGS__) \ +) + + +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2sh_c(short *restrict n, const char *s, + const char **restrict endp, int base, short min, short max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2si_c(int *restrict n, const char *s, + const char **restrict endp, int base, int min, int max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2sl_c(long *restrict n, const char *s, + const char **restrict endp, int base, long min, long max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2sll_c(long long *restrict n, const char *s, + const char **restrict endp, int base, long long min, long long max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2uh_c(unsigned short *restrict n, const char *s, + const char **restrict endp, int base, unsigned short min, + unsigned short max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2ui_c(unsigned int *restrict n, const char *s, + const char **restrict endp, int base, unsigned int min, unsigned int max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2ul_c(unsigned long *restrict n, const char *s, + const char **restrict endp, int base, unsigned long min, unsigned long max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2ull_c(unsigned long long *restrict n, const char *s, + const char **restrict endp, int base, unsigned long long min, + unsigned long long max); + +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2sh_nc(short *restrict n, char *s, + char **restrict endp, int base, short min, short max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2si_nc(int *restrict n, char *s, + char **restrict endp, int base, int min, int max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2sl_nc(long *restrict n, char *s, + char **restrict endp, int base, long min, long max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2sll_nc(long long *restrict n, char *s, + char **restrict endp, int base, long long min, long long max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2uh_nc(unsigned short *restrict n, char *s, + char **restrict endp, int base, unsigned short min, unsigned short max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2ui_nc(unsigned int *restrict n, char *s, + char **restrict endp, int base, unsigned int min, unsigned int max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2ul_nc(unsigned long *restrict n, char *s, + char **restrict endp, int base, unsigned long min, unsigned long max); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) ATTR_ACCESS(write_only, 3) +inline int a2ull_nc(unsigned long long *restrict n, char *s, + char **restrict endp, int base, unsigned long long min, + unsigned long long max); + + +inline int +a2sh_c(short *restrict n, const char *s, + const char **restrict endp, int base, short min, short max) +{ + return a2sh(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2si_c(int *restrict n, const char *s, + const char **restrict endp, int base, int min, int max) +{ + return a2si(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2sl_c(long *restrict n, const char *s, + const char **restrict endp, int base, long min, long max) +{ + return a2sl(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2sll_c(long long *restrict n, const char *s, + const char **restrict endp, int base, long long min, long long max) +{ + return a2sll(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2uh_c(unsigned short *restrict n, const char *s, + const char **restrict endp, int base, unsigned short min, + unsigned short max) +{ + return a2uh(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2ui_c(unsigned int *restrict n, const char *s, + const char **restrict endp, int base, unsigned int min, unsigned int max) +{ + return a2ui(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2ul_c(unsigned long *restrict n, const char *s, + const char **restrict endp, int base, unsigned long min, unsigned long max) +{ + return a2ul(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2ull_c(unsigned long long *restrict n, const char *s, + const char **restrict endp, int base, unsigned long long min, + unsigned long long max) +{ + return a2ull(n, (char *) s, (char **) endp, base, min, max); +} + + +inline int +a2sh_nc(short *restrict n, char *s, + char **restrict endp, int base, short min, short max) +{ + int status; + + *n = strtoi_(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2si_nc(int *restrict n, char *s, + char **restrict endp, int base, int min, int max) +{ + int status; + + *n = strtoi_(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2sl_nc(long *restrict n, char *s, + char **restrict endp, int base, long min, long max) +{ + int status; + + *n = strtoi_(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2sll_nc(long long *restrict n, char *s, + char **restrict endp, int base, long long min, long long max) +{ + int status; + + *n = strtoi_(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2uh_nc(unsigned short *restrict n, char *s, + char **restrict endp, int base, unsigned short min, + unsigned short max) +{ + int status; + + *n = strtou_noneg(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2ui_nc(unsigned int *restrict n, char *s, + char **restrict endp, int base, unsigned int min, unsigned int max) +{ + int status; + + *n = strtou_noneg(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2ul_nc(unsigned long *restrict n, char *s, + char **restrict endp, int base, unsigned long min, unsigned long max) +{ + int status; + + *n = strtou_noneg(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +inline int +a2ull_nc(unsigned long long *restrict n, char *s, + char **restrict endp, int base, unsigned long long min, + unsigned long long max) +{ + int status; + + *n = strtou_noneg(s, endp, base, min, max, &status); + if (status != 0) { + errno = status; + return -1; + } + return 0; +} + + +#endif // include guard diff --git a/lib/atoi/str2i.c b/lib/atoi/str2i.c new file mode 100644 index 0000000..25ce360 --- /dev/null +++ b/lib/atoi/str2i.c @@ -0,0 +1,18 @@ +// SPDX-FileCopyrightText: 2007-2009, Nicolas François +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "atoi/str2i.h" + + +extern inline int str2sh(short *restrict n, const char *restrict s); +extern inline int str2si(int *restrict n, const char *restrict s); +extern inline int str2sl(long *restrict n, const char *restrict s); +extern inline int str2sll(long long *restrict n, const char *restrict s); +extern inline int str2uh(unsigned short *restrict n, const char *restrict s); +extern inline int str2ui(unsigned int *restrict n, const char *restrict s); +extern inline int str2ul(unsigned long *restrict n, const char *restrict s); +extern inline int str2ull(unsigned long long *restrict n, const char *restrict s); diff --git a/lib/atoi/str2i.h b/lib/atoi/str2i.h new file mode 100644 index 0000000..b3ded03 --- /dev/null +++ b/lib/atoi/str2i.h @@ -0,0 +1,108 @@ +// SPDX-FileCopyrightText: 2007-2009, Nicolas François +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_ATOI_STR2I_H_ +#define SHADOW_INCLUDE_LIB_ATOI_STR2I_H_ + + +#include <config.h> + +#include <limits.h> +#include <stddef.h> + +#include "atoi/a2i.h" +#include "attr.h" + + +#define str2i(TYPE, ...) \ +( \ + _Generic((TYPE) 0, \ + short: str2sh, \ + int: str2si, \ + long: str2sl, \ + long long: str2sll, \ + unsigned short: str2uh, \ + unsigned int: str2ui, \ + unsigned long: str2ul, \ + unsigned long long: str2ull \ + )(__VA_ARGS__) \ +) + + +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2sh(short *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2si(int *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2sl(long *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2sll(long long *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2uh(unsigned short *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2ui(unsigned int *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2ul(unsigned long *restrict n, const char *restrict s); +ATTR_STRING(2) ATTR_ACCESS(write_only, 1) +inline int str2ull(unsigned long long *restrict n, const char *restrict s); + + +inline int +str2sh(short *restrict n, const char *restrict s) +{ + return a2sh(n, s, NULL, 0, SHRT_MIN, SHRT_MAX); +} + + +inline int +str2si(int *restrict n, const char *restrict s) +{ + return a2si(n, s, NULL, 0, INT_MIN, INT_MAX); +} + + +inline int +str2sl(long *restrict n, const char *restrict s) +{ + return a2sl(n, s, NULL, 0, LONG_MIN, LONG_MAX); +} + + +inline int +str2sll(long long *restrict n, const char *restrict s) +{ + return a2sll(n, s, NULL, 0, LLONG_MIN, LLONG_MAX); +} + + +inline int +str2uh(unsigned short *restrict n, const char *restrict s) +{ + return a2uh(n, s, NULL, 0, 0, USHRT_MAX); +} + + +inline int +str2ui(unsigned int *restrict n, const char *restrict s) +{ + return a2ui(n, s, NULL, 0, 0, UINT_MAX); +} + + +inline int +str2ul(unsigned long *restrict n, const char *restrict s) +{ + return a2ul(n, s, NULL, 0, 0, ULONG_MAX); +} + + +inline int +str2ull(unsigned long long *restrict n, const char *restrict s) +{ + return a2ull(n, s, NULL, 0, 0, ULLONG_MAX); +} + + +#endif // include guard diff --git a/lib/atoi/strtoi.c b/lib/atoi/strtoi.c new file mode 100644 index 0000000..197707b --- /dev/null +++ b/lib/atoi/strtoi.c @@ -0,0 +1,15 @@ +// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "atoi/strtoi.h" + +#include <stdint.h> + + +extern inline intmax_t strtoi_(const char *s, char **restrict endp, int base, + intmax_t min, intmax_t max, int *restrict status); +extern inline uintmax_t strtou_(const char *s, char **restrict endp, int base, + uintmax_t min, uintmax_t max, int *restrict status); diff --git a/lib/atoi/strtoi.h b/lib/atoi/strtoi.h new file mode 100644 index 0000000..1f061fc --- /dev/null +++ b/lib/atoi/strtoi.h @@ -0,0 +1,96 @@ +// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_ATOI_STRTOI_H_ +#define SHADOW_INCLUDE_LIB_ATOI_STRTOI_H_ + + +#include <config.h> + +#include <errno.h> +#include <inttypes.h> +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <sys/param.h> + +#include "attr.h" + + +#define strtoNmax(TYPE, ...) \ +( \ + _Generic((TYPE) 0, \ + intmax_t: strtoimax, \ + uintmax_t: strtoumax \ + )(__VA_ARGS__) \ +) + + +#define strtoN(s, endp, base, min, max, status, TYPE) \ +({ \ + const char *s_ = s; \ + char **endp_ = endp; \ + int base_ = base; \ + TYPE min_ = min; \ + TYPE max_ = max; \ + int *status_ = status; \ + \ + int e_, st_; \ + char *end_; \ + TYPE n_; \ + \ + if (endp_ == NULL) \ + endp_ = &end_; \ + if (status_ == NULL) \ + status_ = &st_; \ + \ + if (base_ != 0 && (base_ < 0 || base_ > 36)) { \ + *status_ = EINVAL; \ + n_ = 0; \ + \ + } else { \ + e_ = errno; \ + errno = 0; \ + n_ = strtoNmax(TYPE, s_, endp_, base_); \ + \ + if (*endp_ == s_) \ + *status_ = ECANCELED; \ + else if (errno == ERANGE || n_ < min_ || n_ > max_) \ + *status_ = ERANGE; \ + else if (**endp_ != '\0') \ + *status_ = ENOTSUP; \ + else \ + *status_ = 0; \ + \ + errno = e_; \ + } \ + MAX(min_, MIN(max_, n_)); \ +}) + + +ATTR_STRING(1) ATTR_ACCESS(write_only, 2) ATTR_ACCESS(write_only, 6) +inline intmax_t strtoi_(const char *s, char **restrict endp, int base, + intmax_t min, intmax_t max, int *restrict status); +ATTR_STRING(1) ATTR_ACCESS(write_only, 2) ATTR_ACCESS(write_only, 6) +inline uintmax_t strtou_(const char *s, char **restrict endp, int base, + uintmax_t min, uintmax_t max, int *restrict status); + + +inline intmax_t +strtoi_(const char *s, char **restrict endp, int base, + intmax_t min, intmax_t max, int *restrict status) +{ + return strtoN(s, endp, base, min, max, status, intmax_t); +} + + +inline uintmax_t +strtou_(const char *s, char **restrict endp, int base, + uintmax_t min, uintmax_t max, int *restrict status) +{ + return strtoN(s, endp, base, min, max, status, uintmax_t); +} + + +#endif // include guard diff --git a/lib/atoi/strtou_noneg.c b/lib/atoi/strtou_noneg.c new file mode 100644 index 0000000..71cacbd --- /dev/null +++ b/lib/atoi/strtou_noneg.c @@ -0,0 +1,13 @@ +// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "atoi/strtou_noneg.h" + +#include <stdint.h> + + +extern inline uintmax_t strtou_noneg(const char *s, char **restrict endp, + int base, uintmax_t min, uintmax_t max, int *restrict status); diff --git a/lib/atoi/strtou_noneg.h b/lib/atoi/strtou_noneg.h new file mode 100644 index 0000000..6d77adf --- /dev/null +++ b/lib/atoi/strtou_noneg.h @@ -0,0 +1,39 @@ +// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_ATOI_STRTOU_NONEG_H_ +#define SHADOW_INCLUDE_LIB_ATOI_STRTOU_NONEG_H_ + + +#include <config.h> + +#include <errno.h> +#include <stddef.h> +#include <stdint.h> + +#include "atoi/strtoi.h" +#include "attr.h" + + +ATTR_STRING(1) ATTR_ACCESS(write_only, 2) ATTR_ACCESS(write_only, 6) +inline uintmax_t strtou_noneg(const char *s, char **restrict endp, + int base, uintmax_t min, uintmax_t max, int *restrict status); + + +inline uintmax_t +strtou_noneg(const char *s, char **restrict endp, int base, + uintmax_t min, uintmax_t max, int *restrict status) +{ + int st; + + if (status == NULL) + status = &st; + if (strtoi_(s, endp, base, 0, 1, status) == 0 && *status == ERANGE) + return min; + + return strtou_(s, endp, base, min, max, status); +} + + +#endif // include guard diff --git a/lib/attr.h b/lib/attr.h new file mode 100644 index 0000000..3835848 --- /dev/null +++ b/lib/attr.h @@ -0,0 +1,33 @@ +#ifndef SHADOW_INCLUDE_LIB_ATTR_H_ +#define SHADOW_INCLUDE_LIB_ATTR_H_ + + +#include "config.h" + + +#if defined(__GNUC__) +# define MAYBE_UNUSED __attribute__((unused)) +# define NORETURN __attribute__((__noreturn__)) +# define format_attr(type, fmt, va) __attribute__((format(type, fmt, va))) +# define ATTR_ACCESS(...) __attribute__((access(__VA_ARGS__))) +#else +# define MAYBE_UNUSED +# define NORETURN +# define format_attr(type, fmt, va) +# define ATTR_ACCESS(...) +#endif + +#if (__GNUC__ >= 11) && !defined(__clang__) +# define ATTR_MALLOC(deallocator) [[gnu::malloc(deallocator)]] +#else +# define ATTR_MALLOC(deallocator) +#endif + +#if (__GNUC__ >= 14) +# define ATTR_STRING(...) [[gnu::null_terminated_string_arg(__VA_ARGS__)]] +#else +# define ATTR_STRING(...) +#endif + + +#endif // include guard diff --git a/libmisc/audit_help.c b/lib/audit_help.c index e6c2006..54109f0 100644 --- a/libmisc/audit_help.c +++ b/lib/audit_help.c @@ -21,6 +21,8 @@ #include <libaudit.h> #include <errno.h> #include <stdio.h> + +#include "attr.h" #include "prototypes.h" #include "shadowlog.h" int audit_fd; @@ -54,7 +56,7 @@ void audit_help_open (void) * id - uid or gid that the operation is being performed on. This is used * only when user is NULL. */ -void audit_logger (int type, unused const char *pgname, const char *op, +void audit_logger (int type, MAYBE_UNUSED const char *pgname, const char *op, const char *name, unsigned int id, shadow_audit_result result) { @@ -62,7 +64,7 @@ void audit_logger (int type, unused const char *pgname, const char *op, return; } else { audit_log_acct_message (audit_fd, type, NULL, op, name, id, - NULL, NULL, NULL, (int) result); + NULL, NULL, NULL, result); } } @@ -77,11 +79,11 @@ void audit_logger_message (const char *message, shadow_audit_result result) NULL, /* hostname */ NULL, /* addr */ NULL, /* tty */ - (int) result); + result); } } #else /* WITH_AUDIT */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* WITH_AUDIT */ diff --git a/libmisc/basename.c b/lib/basename.c index fe91653..95a2f85 100644 --- a/libmisc/basename.c +++ b/lib/basename.c @@ -21,6 +21,10 @@ #include "prototypes.h" /*@observer@*/const char *Basename (const char *str) { + if (str == NULL) { + abort (); + } + char *cp = strrchr (str, '/'); return (NULL != cp) ? cp + 1 : str; diff --git a/lib/bit.c b/lib/bit.c new file mode 100644 index 0000000..1ffc6dc --- /dev/null +++ b/lib/bit.c @@ -0,0 +1,19 @@ +/* + * SPDX-FileCopyrightText: 2022 - 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#ident "$Id$" + +#include "bit.h" + +#include <limits.h> + + +extern inline unsigned long bit_ceilul(unsigned long x); +extern inline unsigned long bit_ceil_wrapul(unsigned long x); +extern inline int leading_zerosul(unsigned long x); diff --git a/lib/bit.h b/lib/bit.h new file mode 100644 index 0000000..7f09eb4 --- /dev/null +++ b/lib/bit.h @@ -0,0 +1,53 @@ +/* + * SPDX-FileCopyrightText: 2022 - 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_BIT_H_ +#define SHADOW_INCLUDE_LIB_BIT_H_ + + +#include <config.h> + +#include <limits.h> + + +#ifndef ULONG_WIDTH +#define ULONG_WIDTH (sizeof(unsigned long) * CHAR_BIT) +#endif + + +inline unsigned long bit_ceilul(unsigned long x); +inline unsigned long bit_ceil_wrapul(unsigned long x); +inline int leading_zerosul(unsigned long x); + + +/* stdc_bit_ceilul(3) */ +inline unsigned long +bit_ceilul(unsigned long x) +{ + return 1 + (ULONG_MAX >> leading_zerosul(x)); +} + + +/* stdc_bit_ceilul(3), but wrap instead of having Undefined Behavior */ +inline unsigned long +bit_ceil_wrapul(unsigned long x) +{ + if (x == 0) + return 0; + + return bit_ceilul(x); +} + +/* stdc_leading_zerosul(3) */ +inline int +leading_zerosul(unsigned long x) +{ + return (x == 0) ? ULONG_WIDTH : __builtin_clzl(x); +} + + +#endif // include guard diff --git a/libmisc/btrfs.c b/lib/btrfs.c index a2563f7..0391598 100644 --- a/libmisc/btrfs.c +++ b/lib/btrfs.c @@ -39,7 +39,7 @@ static int run_btrfs_subvolume_cmd(const char *subcmd, const char *arg1, const c NULL }; - if (access(cmd, X_OK)) { + if (!cmd || access(cmd, X_OK)) { return 1; } diff --git a/lib/cast.h b/lib/cast.h new file mode 100644 index 0000000..5cbbcf6 --- /dev/null +++ b/lib/cast.h @@ -0,0 +1,15 @@ +// SPDX-FileCopyrightText: 2022-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_CAST_H_ +#define SHADOW_INCLUDE_LIB_CAST_H_ + + +#include <config.h> + + +#define const_cast(T, p) _Generic(p, const T: (T) (p)) + + +#endif // include guard diff --git a/libmisc/chkname.c b/lib/chkname.c index e31ee8c..995562f 100644 --- a/libmisc/chkname.c +++ b/lib/chkname.c @@ -1,11 +1,10 @@ -/* - * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2001 - 2005, Tomasz Kłoczko - * SPDX-FileCopyrightText: 2005 - 2008, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ +// SPDX-FileCopyrightText: 1990-1994, Julianne Frances Haugh +// SPDX-FileCopyrightText: 1996-2000, Marek Michałkiewicz +// SPDX-FileCopyrightText: 2001-2005, Tomasz Kłoczko +// SPDX-FileCopyrightText: 2005-2008, Nicolas François +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + /* * is_valid_user_name(), is_valid_group_name() - check the new user/group @@ -15,16 +14,39 @@ * false - bad name */ + #include <config.h> #ident "$Id$" #include <ctype.h> +#include <errno.h> +#include <limits.h> +#include <stdbool.h> +#include <stddef.h> +#include <unistd.h> + #include "defines.h" #include "chkname.h" + int allow_bad_names = false; + +size_t +login_name_max_size(void) +{ + long conf; + + errno = 0; + conf = sysconf(_SC_LOGIN_NAME_MAX); + if (conf == -1 && errno != 0) + return LOGIN_NAME_MAX; + + return conf; +} + + static bool is_valid_name (const char *name) { if (allow_bad_names) { @@ -32,8 +54,8 @@ static bool is_valid_name (const char *name) } /* - * User/group names must match gnu e-regex: - * [a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,30}[a-zA-Z0-9_.$-]? + * User/group names must match BRE regex: + * [a-zA-Z0-9_.][a-zA-Z0-9_.-]*$\? * * as a non-POSIX, extension, allow "$" as the last char for * sake of Samba 3.x "add machine script" @@ -72,19 +94,17 @@ static bool is_valid_name (const char *name) return !numeric; } -bool is_valid_user_name (const char *name) + +bool +is_valid_user_name(const char *name) { - /* - * User names are limited by whatever utmp can - * handle. - */ - if (strlen (name) > USER_NAME_MAX_LENGTH) { + if (strlen(name) >= login_name_max_size()) return false; - } - return is_valid_name (name); + return is_valid_name(name); } + bool is_valid_group_name (const char *name) { /* @@ -98,4 +118,3 @@ bool is_valid_group_name (const char *name) return is_valid_name (name); } - diff --git a/libmisc/chkname.h b/lib/chkname.h index 0771347..4306a8a 100644 --- a/libmisc/chkname.h +++ b/lib/chkname.h @@ -11,6 +11,7 @@ #ifndef _CHKNAME_H_ #define _CHKNAME_H_ + /* * is_valid_user_name(), is_valid_group_name() - check the new user/group * name for validity; @@ -19,8 +20,14 @@ * false - bad name */ -#include "defines.h" +#include <config.h> + +#include <stdbool.h> +#include <stddef.h> + + +extern size_t login_name_max_size(void); extern bool is_valid_user_name (const char *name); extern bool is_valid_group_name (const char *name); diff --git a/libmisc/chowndir.c b/lib/chowndir.c index d31618a..d31618a 100644 --- a/libmisc/chowndir.c +++ b/lib/chowndir.c diff --git a/libmisc/chowntty.c b/lib/chowntty.c index 8043d8c..70127f3 100644 --- a/libmisc/chowntty.c +++ b/lib/chowntty.c @@ -51,7 +51,7 @@ void chown_tty (const struct passwd *info) */ if ( (fchown (STDIN_FILENO, info->pw_uid, gid) != 0) - || (fchmod (STDIN_FILENO, (mode_t)getdef_num ("TTYPERM", 0600)) != 0)) { + || (fchmod (STDIN_FILENO, getdef_num ("TTYPERM", 0600)) != 0)) { int err = errno; FILE *shadow_logfd = log_get_logfd(); diff --git a/libmisc/cleanup.c b/lib/cleanup.c index c16f1bc..c16f1bc 100644 --- a/libmisc/cleanup.c +++ b/lib/cleanup.c diff --git a/libmisc/cleanup_group.c b/lib/cleanup_group.c index df3ebfd..50c7084 100644 --- a/libmisc/cleanup_group.c +++ b/lib/cleanup_group.c @@ -9,6 +9,7 @@ #include <assert.h> #include <stdio.h> +#include "attr.h" #include "defines.h" #include "groupio.h" #include "sgroupio.h" @@ -22,7 +23,7 @@ */ void cleanup_report_add_group (void *group_name) { - const char *name = (const char *)group_name; + const char *name = group_name; SYSLOG ((LOG_ERR, "failed to add group %s", name)); #ifdef WITH_AUDIT @@ -40,7 +41,7 @@ void cleanup_report_add_group (void *group_name) */ void cleanup_report_del_group (void *group_name) { - const char *name = (const char *)group_name; + const char *name = group_name; SYSLOG ((LOG_ERR, "failed to remove group %s", name)); #ifdef WITH_AUDIT @@ -95,7 +96,7 @@ void cleanup_report_mod_gshadow (void *cleanup_info) */ void cleanup_report_add_group_group (void *group_name) { - const char *name = (const char *)group_name; + const char *name = group_name; SYSLOG ((LOG_ERR, "failed to add group %s to %s", name, gr_dbname ())); #ifdef WITH_AUDIT @@ -115,7 +116,7 @@ void cleanup_report_add_group_group (void *group_name) */ void cleanup_report_add_group_gshadow (void *group_name) { - const char *name = (const char *)group_name; + const char *name = group_name; SYSLOG ((LOG_ERR, "failed to add group %s to %s", name, sgr_dbname ())); #ifdef WITH_AUDIT @@ -136,7 +137,7 @@ void cleanup_report_add_group_gshadow (void *group_name) */ void cleanup_report_del_group_group (void *group_name) { - const char *name = (const char *)group_name; + const char *name = group_name; SYSLOG ((LOG_ERR, "failed to remove group %s from %s", @@ -159,7 +160,7 @@ void cleanup_report_del_group_group (void *group_name) */ void cleanup_report_del_group_gshadow (void *group_name) { - const char *name = (const char *)group_name; + const char *name = group_name; SYSLOG ((LOG_ERR, "failed to remove group %s from %s", @@ -178,7 +179,7 @@ void cleanup_report_del_group_gshadow (void *group_name) * * It should be registered after the group file is successfully locked. */ -void cleanup_unlock_group (unused void *arg) +void cleanup_unlock_group (MAYBE_UNUSED void *arg) { if (gr_unlock () == 0) { fprintf (log_get_logfd(), @@ -198,7 +199,7 @@ void cleanup_unlock_group (unused void *arg) * * It should be registered after the gshadow file is successfully locked. */ -void cleanup_unlock_gshadow (unused void *arg) +void cleanup_unlock_gshadow (MAYBE_UNUSED void *arg) { if (sgr_unlock () == 0) { fprintf (log_get_logfd(), diff --git a/libmisc/cleanup_user.c b/lib/cleanup_user.c index 26675c6..9c4bda9 100644 --- a/libmisc/cleanup_user.c +++ b/lib/cleanup_user.c @@ -9,6 +9,7 @@ #include <assert.h> #include <stdio.h> +#include "attr.h" #include "defines.h" #include "pwio.h" #include "shadowio.h" @@ -16,13 +17,13 @@ #include "shadowlog.h" /* - * cleanup_report_add_user - Report failure to add an user to the system + * cleanup_report_add_user - Report failure to add a user to the system * - * It should be registered when it is decided to add an user to the system. + * It should be registered when it is decided to add a user to the system. */ void cleanup_report_add_user (void *user_name) { - const char *name = (const char *)user_name; + const char *name = user_name; SYSLOG ((LOG_ERR, "failed to add user %s", name)); #ifdef WITH_AUDIT @@ -51,15 +52,15 @@ void cleanup_report_mod_passwd (void *cleanup_info) } /* - * cleanup_report_add_user_passwd - Report failure to add an user to + * cleanup_report_add_user_passwd - Report failure to add a user to * /etc/passwd * - * It should be registered when it is decided to add an user to the + * It should be registered when it is decided to add a user to the * /etc/passwd database. */ void cleanup_report_add_user_passwd (void *user_name) { - const char *name = (const char *)user_name; + const char *name = user_name; SYSLOG ((LOG_ERR, "failed to add user %s to %s", name, pw_dbname ())); #ifdef WITH_AUDIT @@ -71,15 +72,15 @@ void cleanup_report_add_user_passwd (void *user_name) } /* - * cleanup_report_add_user_shadow - Report failure to add an user to + * cleanup_report_add_user_shadow - Report failure to add a user to * /etc/shadow * - * It should be registered when it is decided to add an user to the + * It should be registered when it is decided to add a user to the * /etc/shadow database. */ void cleanup_report_add_user_shadow (void *user_name) { - const char *name = (const char *)user_name; + const char *name = user_name; SYSLOG ((LOG_ERR, "failed to add user %s to %s", name, spw_dbname ())); #ifdef WITH_AUDIT @@ -95,7 +96,7 @@ void cleanup_report_add_user_shadow (void *user_name) * * It should be registered after the passwd database is successfully locked. */ -void cleanup_unlock_passwd (unused void *arg) +void cleanup_unlock_passwd (MAYBE_UNUSED void *arg) { if (pw_unlock () == 0) { fprintf (log_get_logfd(), @@ -114,7 +115,7 @@ void cleanup_unlock_passwd (unused void *arg) * * It should be registered after the shadow database is successfully locked. */ -void cleanup_unlock_shadow (unused void *arg) +void cleanup_unlock_shadow (MAYBE_UNUSED void *arg) { if (spw_unlock () == 0) { fprintf (log_get_logfd(), diff --git a/lib/commonio.c b/lib/commonio.c index 9a02ce1..01a26c9 100644 --- a/lib/commonio.c +++ b/lib/commonio.c @@ -21,6 +21,9 @@ #include <errno.h> #include <stdio.h> #include <signal.h> + +#include "alloc.h" +#include "memzero.h" #include "nscd.h" #include "sssd.h" #ifdef WITH_TCB @@ -29,6 +32,8 @@ #include "prototypes.h" #include "commonio.h" #include "shadowlog_internal.h" +#include "string/sprintf.h" + /* local function prototypes */ static int lrename (const char *, const char *); @@ -106,9 +111,9 @@ static int check_link_count (const char *file, bool log) if (sb.st_nlink != 2) { if (log) { - (void) fprintf (shadow_logfd, - "%s: %s: lock file already used (nlink: %u)\n", - shadow_progname, file, sb.st_nlink); + fprintf(shadow_logfd, + "%s: %s: lock file already used (nlink: %ju)\n", + shadow_progname, file, (uintmax_t) sb.st_nlink); } return 0; } @@ -119,11 +124,11 @@ static int check_link_count (const char *file, bool log) static int do_lock_file (const char *file, const char *lock, bool log) { - int fd; - pid_t pid; - ssize_t len; - int retval; - char buf[32]; + int fd; + int retval; + char buf[32]; + pid_t pid; + ssize_t len; fd = open (file, O_CREAT | O_TRUNC | O_WRONLY, 0600); if (-1 == fd) { @@ -136,9 +141,9 @@ static int do_lock_file (const char *file, const char *lock, bool log) } pid = getpid (); - snprintf (buf, sizeof buf, "%lu", (unsigned long) pid); + SNPRINTF(buf, "%lu", (unsigned long) pid); len = (ssize_t) strlen (buf) + 1; - if (write (fd, buf, (size_t) len) != len) { + if (write_full(fd, buf, len) == -1) { if (log) { (void) fprintf (shadow_logfd, "%s: %s file write error: %s\n", @@ -190,7 +195,7 @@ static int do_lock_file (const char *file, const char *lock, bool log) return 0; } buf[len] = '\0'; - if (get_pid (buf, &pid) == 0) { + if (get_pid(buf, &pid) == -1) { if (log) { (void) fprintf (shadow_logfd, "%s: existing lock file %s with an invalid PID '%s'\n", @@ -251,25 +256,13 @@ static /*@null@*/ /*@dependent@*/FILE *fopen_set_perms ( return NULL; } -#ifdef HAVE_FCHOWN if (fchown (fileno (fp), sb->st_uid, sb->st_gid) != 0) { goto fail; } -#else /* !HAVE_FCHOWN */ - if (chown (name, sb->st_mode) != 0) { - goto fail; - } -#endif /* !HAVE_FCHOWN */ - -#ifdef HAVE_FCHMOD if (fchmod (fileno (fp), sb->st_mode & 0664) != 0) { goto fail; } -#else /* !HAVE_FCHMOD */ - if (chmod (name, sb->st_mode & 0664) != 0) { - goto fail; - } -#endif /* !HAVE_FCHMOD */ + return fp; fail: @@ -349,7 +342,7 @@ static void free_linked_list (struct commonio_db *db) int commonio_setname (struct commonio_db *db, const char *name) { - snprintf (db->filename, sizeof (db->filename), "%s", name); + SNPRINTF(db->filename, "%s", name); db->setname = true; return 1; } @@ -363,33 +356,25 @@ bool commonio_present (const struct commonio_db *db) int commonio_lock_nowait (struct commonio_db *db, bool log) { - char* file = NULL; - char* lock = NULL; - size_t lock_file_len; - size_t file_len; - int err = 0; + int err = 0; + char *file = NULL; + char *lock = NULL; if (db->locked) { return 1; } - file_len = strlen(db->filename) + 11;/* %lu max size */ - lock_file_len = strlen(db->filename) + 6; /* sizeof ".lock" */ - file = (char*)malloc(file_len); - if (file == NULL) { + + if (asprintf(&file, "%s.%ju", db->filename, (uintmax_t) getpid()) == -1) goto cleanup_ENOMEM; - } - lock = (char*)malloc(lock_file_len); - if (lock == NULL) { + if (asprintf(&lock, "%s.lock", db->filename) == -1) goto cleanup_ENOMEM; - } - snprintf (file, file_len, "%s.%lu", - db->filename, (unsigned long) getpid ()); - snprintf (lock, lock_file_len, "%s.lock", db->filename); + if (do_lock_file (file, lock, log) != 0) { db->locked = true; lock_count++; err = 1; } + cleanup_ENOMEM: free(file); free(lock); @@ -483,7 +468,7 @@ static void dec_lock_count (void) int commonio_unlock (struct commonio_db *db) { - char lock[1024]; + char lock[1029]; if (db->isopen) { db->readonly = true; @@ -500,7 +485,7 @@ int commonio_unlock (struct commonio_db *db) * then call ulckpwdf() (if used) on last unlock. */ db->locked = false; - snprintf (lock, sizeof lock, "%s.lock", db->filename); + SNPRINTF(lock, "%s.lock", db->filename); unlink (lock); dec_lock_count (); return 1; @@ -618,7 +603,7 @@ int commonio_open (struct commonio_db *db, int mode) fd = open (db->filename, (db->readonly ? O_RDONLY : O_RDWR) - | O_NOCTTY | O_NONBLOCK | O_NOFOLLOW); + | O_NOCTTY | O_NONBLOCK | O_NOFOLLOW | O_CLOEXEC); saved_errno = errno; db->fp = NULL; if (fd >= 0) { @@ -649,22 +634,19 @@ int commonio_open (struct commonio_db *db, int mode) return 0; } - /* Do not inherit fd in spawned processes (e.g. nscd) */ - fcntl (fileno (db->fp), F_SETFD, FD_CLOEXEC); - buflen = BUFLEN; - buf = (char *) malloc (buflen); + buf = MALLOC(buflen, char); if (NULL == buf) { goto cleanup_ENOMEM; } - while (db->ops->fgets (buf, (int) buflen, db->fp) == buf) { - while ( ((cp = strrchr (buf, '\n')) == NULL) + while (db->ops->fgets (buf, buflen, db->fp) == buf) { + while ( (strrchr (buf, '\n') == NULL) && (feof (db->fp) == 0)) { size_t len; buflen += BUFLEN; - cp = (char *) realloc (buf, buflen); + cp = REALLOC(buf, buflen, char); if (NULL == cp) { goto cleanup_buf; } @@ -698,7 +680,7 @@ int commonio_open (struct commonio_db *db, int mode) } } - p = (struct commonio_entry *) malloc (sizeof *p); + p = MALLOC(1, struct commonio_entry); if (NULL == p) { goto cleanup_entry; } @@ -775,7 +757,7 @@ commonio_sort (struct commonio_db *db, int (*cmp) (const void *, const void *)) return 0; } - entries = malloc (n * sizeof (struct commonio_entry *)); + entries = MALLOC(n, struct commonio_entry *); if (entries == NULL) { return -1; } @@ -912,9 +894,9 @@ static int write_all (const struct commonio_db *db) int commonio_close (struct commonio_db *db) { - char buf[1024]; - int errors = 0; - struct stat sb; + int errors = 0; + char buf[1024]; + struct stat sb; if (!db->isopen) { errno = EINVAL; @@ -945,7 +927,11 @@ int commonio_close (struct commonio_db *db) /* * Create backup file. */ - snprintf (buf, sizeof buf, "%s-", db->filename); + if (SNPRINTF(buf, "%s-", db->filename) == -1) { + (void) fclose (db->fp); + db->fp = NULL; + goto fail; + } #ifdef WITH_SELINUX if (set_selinux_file_context (db->filename, S_IFREG) != 0) { @@ -960,15 +946,15 @@ int commonio_close (struct commonio_db *db) errors++; } + db->fp = NULL; + #ifdef WITH_SELINUX if (reset_selinux_file_context () != 0) { errors++; } #endif - if (errors != 0) { - db->fp = NULL; + if (errors != 0) goto fail; - } } else { /* * Default permissions for new [g]shadow files. @@ -978,7 +964,8 @@ int commonio_close (struct commonio_db *db) sb.st_gid = db->st_gid; } - snprintf (buf, sizeof buf, "%s+", db->filename); + if (SNPRINTF(buf, "%s+", db->filename) == -1) + goto fail; #ifdef WITH_SELINUX if (set_selinux_file_context (db->filename, S_IFREG) != 0) { @@ -998,13 +985,11 @@ int commonio_close (struct commonio_db *db) if (fflush (db->fp) != 0) { errors++; } -#ifdef HAVE_FSYNC + if (fsync (fileno (db->fp)) != 0) { errors++; } -#else /* !HAVE_FSYNC */ - sync (); -#endif /* !HAVE_FSYNC */ + if (fclose (db->fp) != 0) { errors++; } @@ -1096,7 +1081,7 @@ int commonio_update (struct commonio_db *db, const void *eptr) return 1; } /* not found, new entry */ - p = (struct commonio_entry *) malloc (sizeof *p); + p = MALLOC(1, struct commonio_entry); if (NULL == p) { db->ops->free (nentry); errno = ENOMEM; @@ -1133,7 +1118,7 @@ int commonio_append (struct commonio_db *db, const void *eptr) return 0; } /* new entry */ - p = (struct commonio_entry *) malloc (sizeof *p); + p = MALLOC(1, struct commonio_entry); if (NULL == p) { db->ops->free (nentry); errno = ENOMEM; @@ -1200,6 +1185,8 @@ int commonio_remove (struct commonio_db *db, const char *name) db->ops->free (p->eptr); } + free(p); + return 1; } diff --git a/lib/commonio.h b/lib/commonio.h index e63c5b4..fedbefa 100644 --- a/lib/commonio.h +++ b/lib/commonio.h @@ -11,8 +11,11 @@ #ifndef COMMONIO_H #define COMMONIO_H + +#include "attr.h" #include "defines.h" /* bool */ + /* * Linked list entry. */ @@ -37,7 +40,7 @@ struct commonio_ops { /* * free() the object including any strings pointed by it. */ - void (*free) (/*@out@*/ /*@only@*/void *); + void (*free)(/*@only@*/void *); /* * Return the name of the object (for example, pw_name @@ -61,7 +64,9 @@ struct commonio_ops { * fgets and fputs (can be replaced by versions that * understand line continuation conventions). */ - /*@null@*/char *(*fgets) (/*@returned@*/ /*@out@*/char *s, int n, FILE *stream); + ATTR_ACCESS(write_only, 1, 2) + /*@null@*/char *(*fgets)(/*@returned@*/char *restrict s, int n, + FILE *restrict stream); int (*fputs) (const char *, FILE *); /* @@ -123,6 +128,7 @@ extern int commonio_setname (struct commonio_db *, const char *); extern bool commonio_present (const struct commonio_db *db); extern int commonio_lock (struct commonio_db *); extern int commonio_lock_nowait (struct commonio_db *, bool log); +extern int do_fcntl_lock (const char *file, bool log, short type); extern int commonio_open (struct commonio_db *, int); extern /*@observer@*/ /*@null@*/const void *commonio_locate (struct commonio_db *, const char *); extern int commonio_update (struct commonio_db *, const void *); diff --git a/libmisc/console.c b/lib/console.c index c475aa2..92065d9 100644 --- a/libmisc/console.c +++ b/lib/console.c @@ -13,6 +13,7 @@ #include <stdio.h> #include "getdef.h" #include "prototypes.h" +#include "string/strtcpy.h" #ident "$Id$" @@ -44,8 +45,7 @@ static bool is_listed (const char *cfgin, const char *tty, bool def) if (*cons != '/') { char *pbuf; - strncpy (buf, cons, sizeof (buf)); - buf[sizeof (buf) - 1] = '\0'; + STRTCPY(buf, cons); pbuf = &buf[0]; while ((s = strtok (pbuf, ":")) != NULL) { if (strcmp (s, tty) == 0) { @@ -71,8 +71,9 @@ static bool is_listed (const char *cfgin, const char *tty, bool def) * See if this tty is listed in the console file. */ - while (fgets (buf, (int) sizeof (buf), fp) != NULL) { - buf[strlen (buf) - 1] = '\0'; + while (fgets (buf, sizeof (buf), fp) != NULL) { + /* Remove optional trailing '\n'. */ + buf[strcspn (buf, "\n")] = '\0'; if (strcmp (buf, tty) == 0) { (void) fclose (fp); return true; diff --git a/libmisc/copydir.c b/lib/copydir.c index b692aa9..926033a 100644 --- a/libmisc/copydir.c +++ b/lib/copydir.c @@ -17,6 +17,9 @@ #include <sys/time.h> #include <fcntl.h> #include <stdio.h> + +#include "alloc.h" +#include "attr.h" #include "prototypes.h" #include "defines.h" #ifdef WITH_SELINUX @@ -33,6 +36,7 @@ #include <attr/libattr.h> #endif /* WITH_ATTR */ #include "shadowlog.h" +#include "string/sprintf.h" static /*@null@*/const char *src_orig; @@ -64,12 +68,12 @@ static int copy_dir (const struct path_info *src, const struct path_info *dst, gid_t old_gid, gid_t new_gid); static /*@null@*/char *readlink_malloc (const char *filename); static int copy_symlink (const struct path_info *src, const struct path_info *dst, - unused bool reset_selinux, + MAYBE_UNUSED bool reset_selinux, const struct stat *statp, const struct timespec mt[], uid_t old_uid, uid_t new_uid, gid_t old_gid, gid_t new_gid); static int copy_hardlink (const struct path_info *dst, - unused bool reset_selinux, + MAYBE_UNUSED bool reset_selinux, struct link_name *lp); static int copy_special (const struct path_info *src, const struct path_info *dst, bool reset_selinux, @@ -93,7 +97,7 @@ static int fchown_if_needed (int fdst, const struct stat *statp, * error_acl - format the error messages for the ACL and EQ libraries. */ format_attr(printf, 2, 3) -static void error_acl (unused struct error_context *ctx, const char *fmt, ...) +static void error_acl (MAYBE_UNUSED struct error_context *ctx, const char *fmt, ...) { va_list ap; FILE *shadow_logfd = log_get_logfd(); @@ -206,11 +210,7 @@ static void remove_link (/*@only@*/struct link_name *ln) static /*@exposed@*/ /*@null@*/struct link_name *check_link (const char *name, const struct stat *sb) { - struct link_name *lp; - size_t src_len; - size_t dst_len; - size_t name_len; - size_t len; + struct link_name *lp; /* copy_tree () must be the entry point */ assert (NULL != src_orig); @@ -226,16 +226,11 @@ static /*@exposed@*/ /*@null@*/struct link_name *check_link (const char *name, c return NULL; } - lp = (struct link_name *) xmalloc (sizeof *lp); - src_len = strlen (src_orig); - dst_len = strlen (dst_orig); - name_len = strlen (name); + lp = XMALLOC(1, struct link_name); lp->ln_dev = sb->st_dev; lp->ln_ino = sb->st_ino; lp->ln_count = sb->st_nlink; - len = name_len - src_len + dst_len + 1; - lp->ln_name = (char *) xmalloc (len); - (void) snprintf (lp->ln_name, len, "%s%s", dst_orig, name + src_len); + xasprintf(&lp->ln_name, "%s%s", dst_orig, name + strlen(src_orig)); lp->ln_next = links; links = lp; @@ -312,51 +307,43 @@ static int copy_tree_impl (const struct path_info *src, const struct path_info * set_orig = true; } while ((0 == err) && (ent = readdir (dir)) != NULL) { + char *src_name = NULL; + char *dst_name; + struct path_info src_entry, dst_entry; /* * Skip the "." and ".." entries */ - if ((strcmp (ent->d_name, ".") != 0) && - (strcmp (ent->d_name, "..") != 0)) { - char *src_name; - char *dst_name; - size_t src_len = strlen (ent->d_name) + 2; - size_t dst_len = strlen (ent->d_name) + 2; - src_len += strlen (src->full_path); - dst_len += strlen (dst->full_path); - - src_name = (char *) malloc (src_len); - dst_name = (char *) malloc (dst_len); - - if ((NULL == src_name) || (NULL == dst_name)) { - err = -1; - } else { - /* - * Build the filename for both the source and - * the destination files. - */ - struct path_info src_entry, dst_entry; - - (void) snprintf (src_name, src_len, "%s/%s", - src->full_path, ent->d_name); - (void) snprintf (dst_name, dst_len, "%s/%s", - dst->full_path, ent->d_name); - - src_entry.full_path = src_name; - src_entry.dirfd = dirfd(dir); - src_entry.name = ent->d_name; - - dst_entry.full_path = dst_name; - dst_entry.dirfd = dst_fd; - dst_entry.name = ent->d_name; - - err = copy_entry (&src_entry, &dst_entry, - reset_selinux, - old_uid, new_uid, - old_gid, new_gid); - } - free (src_name); - free (dst_name); + if (strcmp(ent->d_name, ".") == 0 || + strcmp(ent->d_name, "..") == 0) + { + continue; + } + + if (asprintf(&src_name, "%s/%s", src->full_path, ent->d_name) == -1) + { + err = -1; + continue; + } + if (asprintf(&dst_name, "%s/%s", dst->full_path, ent->d_name) == -1) + { + err = -1; + goto skip; } + + src_entry.full_path = src_name; + src_entry.dirfd = dirfd(dir); + src_entry.name = ent->d_name; + + dst_entry.full_path = dst_name; + dst_entry.dirfd = dst_fd; + dst_entry.name = ent->d_name; + + err = copy_entry(&src_entry, &dst_entry, reset_selinux, + old_uid, new_uid, old_gid, new_gid); + + free(dst_name); +skip: + free(src_name); } (void) closedir (dir); (void) close (dst_fd); @@ -413,78 +400,70 @@ static int copy_entry (const struct path_info *src, const struct path_info *dst, { int err = 0; struct stat sb; + struct stat tmp_sb; struct link_name *lp; struct timespec mt[2]; if (fstatat(src->dirfd, src->name, &sb, AT_SYMLINK_NOFOLLOW) == -1) { /* If we cannot stat the file, do not care. */ - } else { -#ifdef HAVE_STRUCT_STAT_ST_ATIM - mt[0].tv_sec = sb.st_atim.tv_sec; - mt[0].tv_nsec = sb.st_atim.tv_nsec; -#else /* !HAVE_STRUCT_STAT_ST_ATIM */ - mt[0].tv_sec = sb.st_atime; -# ifdef HAVE_STRUCT_STAT_ST_ATIMENSEC - mt[0].tv_nsec = sb.st_atimensec; -# else /* !HAVE_STRUCT_STAT_ST_ATIMENSEC */ - mt[0].tv_nsec = 0; -# endif /* !HAVE_STRUCT_STAT_ST_ATIMENSEC */ -#endif /* !HAVE_STRUCT_STAT_ST_ATIM */ - -#ifdef HAVE_STRUCT_STAT_ST_MTIM - mt[1].tv_sec = sb.st_mtim.tv_sec; - mt[1].tv_nsec = sb.st_mtim.tv_nsec; -#else /* !HAVE_STRUCT_STAT_ST_MTIM */ - mt[1].tv_sec = sb.st_mtime; -# ifdef HAVE_STRUCT_STAT_ST_MTIMENSEC - mt[1].tv_nsec = sb.st_mtimensec; -# else /* !HAVE_STRUCT_STAT_ST_MTIMENSEC */ - mt[1].tv_nsec = 0; -# endif /* !HAVE_STRUCT_STAT_ST_MTIMENSEC */ -#endif /* !HAVE_STRUCT_STAT_ST_MTIM */ - - if (S_ISDIR (sb.st_mode)) { - err = copy_dir (src, dst, reset_selinux, &sb, mt, - old_uid, new_uid, old_gid, new_gid); - } + return 0; + } - /* - * Copy any symbolic links - */ + mt[0].tv_sec = sb.st_atim.tv_sec; + mt[0].tv_nsec = sb.st_atim.tv_nsec; - else if (S_ISLNK (sb.st_mode)) { - err = copy_symlink (src, dst, reset_selinux, &sb, mt, - old_uid, new_uid, old_gid, new_gid); - } + mt[1].tv_sec = sb.st_mtim.tv_sec; + mt[1].tv_nsec = sb.st_mtim.tv_nsec; - /* - * See if this is a previously copied link - */ + if (S_ISDIR (sb.st_mode)) { + err = copy_dir (src, dst, reset_selinux, &sb, mt, + old_uid, new_uid, old_gid, new_gid); + } - else if ((lp = check_link (src->full_path, &sb)) != NULL) { - err = copy_hardlink (dst, reset_selinux, lp); - } + /* + * If the destination already exists do nothing. + * This is after the copy_dir above to still iterate into subdirectories. + */ + if (fstatat(dst->dirfd, dst->name, &tmp_sb, AT_SYMLINK_NOFOLLOW) != -1) { + return err; + } - /* - * Deal with FIFOs and special files. The user really - * shouldn't have any of these, but it seems like it - * would be nice to copy everything ... - */ + /* + * Copy any symbolic links + */ - else if (!S_ISREG (sb.st_mode)) { - err = copy_special (src, dst, reset_selinux, &sb, mt, - old_uid, new_uid, old_gid, new_gid); - } + else if (S_ISLNK (sb.st_mode)) { + err = copy_symlink (src, dst, reset_selinux, &sb, mt, + old_uid, new_uid, old_gid, new_gid); + } - /* - * Create the new file and copy the contents. The new - * file will be owned by the provided UID and GID values. - */ + /* + * See if this is a previously copied link + */ - else { - err = copy_file (src, dst, reset_selinux, &sb, mt, - old_uid, new_uid, old_gid, new_gid); - } + else if ((lp = check_link (src->full_path, &sb)) != NULL) { + err = copy_hardlink (dst, reset_selinux, lp); + } + + /* + * Deal with FIFOs and special files. The user really + * shouldn't have any of these, but it seems like it + * would be nice to copy everything ... + */ + + else if (!S_ISREG (sb.st_mode)) { + err = copy_special (src, dst, reset_selinux, &sb, mt, + old_uid, new_uid, old_gid, new_gid); + } + + /* + * Create the new file and copy the contents. The new + * file will be owned by the provided UID and GID values. + */ + + else { + err = copy_file (src, dst, reset_selinux, &sb, mt, + old_uid, new_uid, old_gid, new_gid); } return err; @@ -507,6 +486,7 @@ static int copy_dir (const struct path_info *src, const struct path_info *dst, gid_t old_gid, gid_t new_gid) { int err = 0; + struct stat dst_sb; /* * Create a new target directory, make it owned by @@ -518,6 +498,15 @@ static int copy_dir (const struct path_info *src, const struct path_info *dst, return -1; } #endif /* WITH_SELINUX */ + /* + * If the destination is already a directory, don't change it + * but copy into it (recursively). + */ + if (fstatat(dst->dirfd, dst->name, &dst_sb, AT_SYMLINK_NOFOLLOW) == 0 && S_ISDIR(dst_sb.st_mode)) { + return (copy_tree_impl (src, dst, false, reset_selinux, + old_uid, new_uid, old_gid, new_gid) != 0); + } + if ( (mkdirat (dst->dirfd, dst->name, 0700) != 0) || (chownat_if_needed (dst, statp, old_uid, new_uid, old_gid, new_gid) != 0) @@ -559,7 +548,7 @@ static /*@null@*/char *readlink_malloc (const char *filename) while (true) { ssize_t nchars; - char *buffer = (char *) malloc (size); + char *buffer = MALLOC(size, char); if (NULL == buffer) { return NULL; } @@ -594,7 +583,7 @@ static /*@null@*/char *readlink_malloc (const char *filename) * Return 0 on success, -1 on error. */ static int copy_symlink (const struct path_info *src, const struct path_info *dst, - unused bool reset_selinux, + MAYBE_UNUSED bool reset_selinux, const struct stat *statp, const struct timespec mt[], uid_t old_uid, uid_t new_uid, gid_t old_gid, gid_t new_gid) @@ -622,13 +611,11 @@ static int copy_symlink (const struct path_info *src, const struct path_info *ds * create a link to the corresponding entry in the dst_orig * directory. */ - if (strncmp (oldlink, src_orig, strlen (src_orig)) == 0) { - size_t len = strlen (dst_orig) + strlen (oldlink) - strlen (src_orig) + 1; - char *dummy = (char *) xmalloc (len); - (void) snprintf (dummy, len, "%s%s", - dst_orig, - oldlink + strlen (src_orig)); - free (oldlink); + if (strncmp(oldlink, src_orig, strlen(src_orig)) == 0) { + char *dummy; + + xasprintf(&dummy, "%s%s", dst_orig, oldlink + strlen(src_orig)); + free(oldlink); oldlink = dummy; } @@ -668,7 +655,7 @@ static int copy_symlink (const struct path_info *src, const struct path_info *ds * Return 0 on success, -1 on error. */ static int copy_hardlink (const struct path_info *dst, - unused bool reset_selinux, + MAYBE_UNUSED bool reset_selinux, struct link_name *lp) { /* FIXME: selinux, ACL, Extended Attributes needed? */ @@ -687,6 +674,7 @@ static int copy_hardlink (const struct path_info *dst, return 0; } + /* * copy_special - copy a special file * @@ -697,29 +685,33 @@ static int copy_hardlink (const struct path_info *dst, * * Return 0 on success, -1 on error. */ -static int copy_special (const struct path_info *src, const struct path_info *dst, - bool reset_selinux, - const struct stat *statp, const struct timespec mt[], - uid_t old_uid, uid_t new_uid, - gid_t old_gid, gid_t new_gid) +static int +copy_special(const struct path_info *src, const struct path_info *dst, + bool reset_selinux, + const struct stat *statp, const struct timespec mt[], + uid_t old_uid, uid_t new_uid, + gid_t old_gid, gid_t new_gid) { - int err = 0; +#if defined(WITH_SELINUX) + if (set_selinux_file_context(dst->full_path, statp->st_mode & S_IFMT) != 0) + return -1; +#endif -#ifdef WITH_SELINUX - if (set_selinux_file_context (dst->full_path, statp->st_mode & S_IFMT) != 0) { + if (mknodat(dst->dirfd, dst->name, statp->st_mode & ~07777U, statp->st_rdev) == -1) return -1; - } -#endif /* WITH_SELINUX */ - if ( (mknodat (dst->dirfd, dst->name, statp->st_mode & ~07777U, statp->st_rdev) != 0) - || (chownat_if_needed (dst, statp, - old_uid, new_uid, old_gid, new_gid) != 0) - || (fchmodat (dst->dirfd, dst->name, statp->st_mode & 07777, AT_SYMLINK_NOFOLLOW) != 0) -#ifdef WITH_ACL - || ( (perm_copy_path (src, dst, &ctx) != 0) - && (errno != 0)) -#endif /* WITH_ACL */ -#ifdef WITH_ATTR + if (chownat_if_needed(dst, statp, old_uid, new_uid, old_gid, new_gid) == -1) + return -1; + + if (fchmodat(dst->dirfd, dst->name, statp->st_mode & 07777, AT_SYMLINK_NOFOLLOW) == -1) + return -1; + +#if defined(WITH_ACL) + if (perm_copy_path(src, dst, &ctx) == -1 && errno != 0) + return -1; +#endif + +#if defined(WITH_ATTR) /* * If the third parameter is NULL, all extended attributes * except those that define Access Control Lists are copied. @@ -727,51 +719,16 @@ static int copy_special (const struct path_info *src, const struct path_info *ds * file systems with and without ACL support needs some * additional logic so that no unexpected permissions result. */ - || ( !reset_selinux - && (attr_copy_path (src, dst, NULL, &ctx) != 0) - && (errno != 0)) -#endif /* WITH_ATTR */ - || (utimensat (dst->dirfd, dst->name, mt, AT_SYMLINK_NOFOLLOW) != 0)) { - err = -1; + if (!reset_selinux) { + if (attr_copy_path(src, dst, NULL, &ctx) == -1 && errno != 0) + return -1; } +#endif - return err; -} - -/* - * full_write - write entire buffer - * - * Write up to count bytes from the buffer starting at buf to the - * file referred to by the file descriptor fd. - * Retry in case of a short write. - * - * Returns the number of bytes written on success, -1 on error. - */ -static ssize_t full_write(int fd, const void *buf, size_t count) { - ssize_t written = 0; - - while (count > 0) { - ssize_t res; - - res = write(fd, buf, count); - if (res < 0) { - if (errno == EINTR) { - continue; - } - - return res; - } - - if (res == 0) { - break; - } - - written += res; - buf = (const unsigned char*)buf + res; - count -= (size_t)res; - } + if (utimensat(dst->dirfd, dst->name, mt, AT_SYMLINK_NOFOLLOW) == -1) + return -1; - return written; + return 0; } /* @@ -850,7 +807,7 @@ static int copy_file (const struct path_info *src, const struct path_info *dst, break; } - if (full_write (ofd, buf, (size_t)cnt) < 0) { + if (write_full(ofd, buf, cnt) == -1) { (void) close (ofd); (void) close (ifd); return -1; @@ -858,7 +815,7 @@ static int copy_file (const struct path_info *src, const struct path_info *dst, } (void) close (ifd); - if (close (ofd) != 0) { + if (close (ofd) != 0 && errno != EINTR) { return -1; } diff --git a/lib/csrand.c b/lib/csrand.c new file mode 100644 index 0000000..8ded343 --- /dev/null +++ b/lib/csrand.c @@ -0,0 +1,150 @@ +/* + * SPDX-FileCopyrightText: Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#ident "$Id$" + +#include <limits.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#if HAVE_SYS_RANDOM_H +#include <sys/random.h> +#endif +#include "bit.h" +#include "defines.h" +#include "prototypes.h" +#include "shadowlog.h" +#include "sizeof.h" + + +static uint32_t csrand32(void); +static uint32_t csrand_uniform32(uint32_t n); +static unsigned long csrand_uniform_slow(unsigned long n); + + +/* + * Return a uniformly-distributed CS random u_long value. + */ +unsigned long +csrand(void) +{ + FILE *fp; + unsigned long r; + +#ifdef HAVE_GETENTROPY + /* getentropy may exist but lack kernel support. */ + if (getentropy(&r, sizeof(r)) == 0) + return r; +#endif + +#ifdef HAVE_GETRANDOM + /* Likewise getrandom. */ + if (getrandom(&r, sizeof(r), 0) == sizeof(r)) + return r; +#endif + +#ifdef HAVE_ARC4RANDOM_BUF + /* arc4random_buf can never fail. */ + arc4random_buf(&r, sizeof(r)); + return r; +#endif + + /* Use /dev/urandom as a last resort. */ + fp = fopen("/dev/urandom", "r"); + if (NULL == fp) { + goto fail; + } + + if (fread(&r, sizeof(r), 1, fp) != 1) { + fclose(fp); + goto fail; + } + + fclose(fp); + return r; + +fail: + fprintf(log_get_logfd(), _("Unable to obtain random bytes.\n")); + exit(1); +} + + +/* + * Return a uniformly-distributed CS random value in the interval [0, n-1]. + */ +unsigned long +csrand_uniform(unsigned long n) +{ + if (n == 0 || n > UINT32_MAX) + return csrand_uniform_slow(n); + + return csrand_uniform32(n); +} + + +/* + * Return a uniformly-distributed CS random value in the interval [min, max]. + */ +unsigned long +csrand_interval(unsigned long min, unsigned long max) +{ + return csrand_uniform(max - min + 1) + min; +} + + +static uint32_t +csrand32(void) +{ + return csrand(); +} + + +/* + * Fast Random Integer Generation in an Interval + * ACM Transactions on Modeling and Computer Simulation 29 (1), 2019 + * <https://arxiv.org/abs/1805.10941> + */ +static uint32_t +csrand_uniform32(uint32_t n) +{ + uint32_t bound, rem; + uint64_t r, mult; + + if (n == 0) + return csrand32(); + + bound = -n % n; // analogous to `2^32 % n`, since `x % y == (x-y) % y` + + do { + r = csrand32(); + mult = r * n; + rem = mult; // analogous to `mult % 2^32` + } while (rem < bound); // p = (2^32 % n) / 2^32; W.C.: n=2^31+1, p=0.5 + + r = mult >> WIDTHOF(n); // analogous to `mult / 2^32` + + return r; +} + + +static unsigned long +csrand_uniform_slow(unsigned long n) +{ + unsigned long r, max, mask; + + max = n - 1; + mask = bit_ceil_wrapul(n) - 1; + + do { + r = csrand(); + r &= mask; // optimization + } while (r > max); // p = ((mask+1) % n) / (mask+1); W.C.: p=0.5 + + return r; +} diff --git a/lib/defines.h b/lib/defines.h index d01f691..8c55ddd 100644 --- a/lib/defines.h +++ b/lib/defines.h @@ -6,41 +6,8 @@ #include "config.h" -#if HAVE_STDBOOL_H -# include <stdbool.h> -#else -# if ! HAVE__BOOL -# ifdef __cplusplus -typedef bool _Bool; -# else -typedef unsigned char _Bool; -# endif -# endif -# define bool _Bool -# define false (0) -# define true (1) -# define __bool_true_false_are_defined 1 -#endif - -/* Take care of NLS matters. */ -#ifdef S_SPLINT_S -extern char *setlocale(int categories, const char *locale); -# define LC_ALL (6) -extern char * bindtextdomain (const char * domainname, const char * dirname); -extern char * textdomain (const char * domainname); -# define _(Text) Text -# define ngettext(Msgid1, Msgid2, N) \ - ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2)) -#else -#ifdef HAVE_LOCALE_H -# include <locale.h> -#else -# undef setlocale -# define setlocale(category, locale) (NULL) -# ifndef LC_ALL -# define LC_ALL 6 -# endif -#endif +#include <stdbool.h> +#include <locale.h> #define gettext_noop(String) (String) /* #define gettext_def(String) "#define String" */ @@ -57,22 +24,18 @@ extern char * textdomain (const char * domainname); # define ngettext(Msgid1, Msgid2, N) \ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2)) #endif -#endif +#include <stdio.h> #include <stdlib.h> #include <string.h> -#if HAVE_ERRNO_H -# include <errno.h> -#endif +#include <errno.h> #include <sys/stat.h> #include <sys/types.h> #include <sys/wait.h> -#if HAVE_UNISTD_H -# include <unistd.h> -#endif +#include <unistd.h> /* * crypt(3), crypt_gensalt(3), and their @@ -85,22 +48,6 @@ extern char * textdomain (const char * domainname); #include <sys/time.h> #include <time.h> -#ifdef HAVE_MEMSET_S -# define memzero(ptr, size) memset_s((ptr), 0, (size)) -#elif defined HAVE_EXPLICIT_BZERO /* !HAVE_MEMSET_S */ -# define memzero(ptr, size) explicit_bzero((ptr), (size)) -#else /* !HAVE_MEMSET_S && HAVE_EXPLICIT_BZERO */ -static inline void memzero(void *ptr, size_t size) -{ - volatile unsigned char * volatile p = ptr; - while (size--) { - *p++ = '\0'; - } -} -#endif /* !HAVE_MEMSET_S && !HAVE_EXPLICIT_BZERO */ - -#define strzero(s) memzero(s, strlen(s)) /* warning: evaluates twice */ - #include <dirent.h> /* @@ -123,7 +70,6 @@ static inline void memzero(void *ptr, size_t size) #endif #endif -#ifdef USE_SYSLOG #include <syslog.h> #ifndef LOG_WARN @@ -170,14 +116,6 @@ static inline void memzero(void *ptr, size_t size) #define SYSLOG(x) syslog x #endif /* !ENABLE_NLS */ -#else /* !USE_SYSLOG */ - -#define SYSLOG(x) /* empty */ -#define openlog(a,b,c) /* empty */ -#define closelog() /* empty */ - -#endif /* !USE_SYSLOG */ - /* The default syslog settings can now be changed here, in just one place. */ @@ -192,63 +130,25 @@ static inline void memzero(void *ptr, size_t size) #define OPENLOG(progname) openlog(progname, SYSLOG_OPTIONS, SYSLOG_FACILITY) -#ifndef F_OK -# define F_OK 0 -# define X_OK 1 -# define W_OK 2 -# define R_OK 4 -#endif - -#ifndef SEEK_SET -# define SEEK_SET 0 -# define SEEK_CUR 1 -# define SEEK_END 2 -#endif - -#if HAVE_TERMIOS_H -# include <termios.h> -# define STTY(fd, termio) tcsetattr(fd, TCSANOW, termio) -# define GTTY(fd, termio) tcgetattr(fd, termio) -# define TERMIO struct termios -# define USE_TERMIOS -#else /* assumed HAVE_TERMIO_H */ -# include <sys/ioctl.h> -# include <termio.h> -# define STTY(fd, termio) ioctl(fd, TCSETA, termio) -# define GTTY(fd, termio) ioctl(fd, TCGETA, termio) -# define TEMRIO struct termio -# define USE_TERMIO -#endif +#include <termios.h> +#define STTY(fd, termio) tcsetattr(fd, TCSANOW, termio) +#define GTTY(fd, termio) tcgetattr(fd, termio) +#define TERMIO struct termios /* * Password aging constants * * DAY - seconds / day * WEEK - seconds / week - * SCALE - seconds / aging unit */ /* Solaris defines this in shadow.h */ #ifndef DAY -#define DAY (24L*3600L) +#define DAY ((time_t) 24 * 3600) #endif #define WEEK (7*DAY) -#ifdef ITI_AGING -#define SCALE 1 -#else -#define SCALE DAY -#endif - -/* Copy string pointed by B to array A with size checking. It was originally - in lmain.c but is _very_ useful elsewhere. Some setuid root programs with - very sloppy coding used to assume that BUFSIZ will always be enough... */ - - /* danger - side effects */ -#define STRFCPY(A,B) \ - (strncpy((A), (B), sizeof(A) - 1), (A)[sizeof(A) - 1] = '\0') - #ifndef PASSWD_FILE #define PASSWD_FILE "/etc/passwd" #endif @@ -261,22 +161,18 @@ static inline void memzero(void *ptr, size_t size) #define SHADOW_FILE "/etc/shadow" #endif -#ifdef SHADOWGRP -#ifndef SGROUP_FILE -#define SGROUP_FILE "/etc/gshadow" -#endif +#ifndef SUBUID_FILE +#define SUBUID_FILE "/etc/subuid" #endif -#ifndef NULL -#define NULL ((void *) 0) +#ifndef SUBGID_FILE +#define SUBGID_FILE "/etc/subgid" #endif -#ifdef sun /* hacks for compiling on SunOS */ -# ifndef SOLARIS -extern int fputs (); -extern char *strdup (); -extern char *strerror (); -# endif +#ifdef SHADOWGRP +#ifndef SGROUP_FILE +#define SGROUP_FILE "/etc/gshadow" +#endif #endif /* @@ -288,45 +184,16 @@ extern char *strerror (); #define SHADOW_PASSWD_STRING "x" #endif -#define SHADOW_SP_FLAG_UNSET ((unsigned long int)-1) +#define SHADOW_SP_FLAG_UNSET ((unsigned long)-1) #ifdef WITH_AUDIT -#ifdef __u8 /* in case we use pam < 0.80 */ +/* in case we use pam < 0.80 */ #undef __u8 -#endif -#ifdef __u32 #undef __u32 -#endif #include <libaudit.h> #endif -/* To be used for verified unused parameters */ -#if defined(__GNUC__) && !defined(__STRICT_ANSI__) -# define unused __attribute__((unused)) -# define format_attr(type, index, check) __attribute__((format (type, index, check))) -#else -# define unused -# define format_attr(type, index, check) -#endif - -/* Maximum length of usernames */ -#ifdef HAVE_UTMPX_H -# include <utmpx.h> -# define USER_NAME_MAX_LENGTH (sizeof (((struct utmpx *)NULL)->ut_user)) -#else -# include <utmp.h> -# ifdef HAVE_STRUCT_UTMP_UT_USER -# define USER_NAME_MAX_LENGTH (sizeof (((struct utmp *)NULL)->ut_user)) -# else -# ifdef HAVE_STRUCT_UTMP_UT_NAME -# define USER_NAME_MAX_LENGTH (sizeof (((struct utmp *)NULL)->ut_name)) -# else -# define USER_NAME_MAX_LENGTH 32 -# endif -# endif -#endif - /* Maximum length of passwd entry */ #define PASSWD_ENTRY_MAX_LENGTH 32768 @@ -336,4 +203,14 @@ extern char *strerror (); # define shadow_getenv(name) getenv(name) #endif +/* + * Maximum password length + * + * Consider that there is also limit in PAM (PAM_MAX_RESP_SIZE) + * currently set to 512. + */ +#if !defined(PASS_MAX) +#define PASS_MAX BUFSIZ - 1 +#endif + #endif /* _DEFINES_H_ */ diff --git a/libmisc/env.c b/lib/env.c index fc6dbce..9b5fd32 100644 --- a/libmisc/env.c +++ b/lib/env.c @@ -15,9 +15,14 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> + +#include "alloc.h" #include "prototypes.h" #include "defines.h" #include "shadowlog.h" +#include "string/sprintf.h" + + /* * NEWENVP_STEP must be a power of two. This is the number * of (char *) pointers to allocate at a time, to avoid using @@ -26,7 +31,6 @@ #define NEWENVP_STEP 16 size_t newenvc = 0; /*@null@*/char **newenvp = NULL; -extern char **environ; static const char *const forbid[] = { "_RLD_=", @@ -42,7 +46,7 @@ static const char *const forbid[] = { "PATH=", "SHELL=", "SHLIB_PATH=", - (char *) 0 + NULL }; /* these are allowed, but with no slashes inside @@ -51,7 +55,7 @@ static const char *const noslash[] = { "LANG=", "LANGUAGE=", "LC_", /* anything with the LC_ prefix */ - (char *) 0 + NULL }; /* @@ -59,23 +63,18 @@ static const char *const noslash[] = { */ void initenv (void) { - newenvp = (char **) xmalloc (NEWENVP_STEP * sizeof (char *)); + newenvp = XMALLOC(NEWENVP_STEP, char *); *newenvp = NULL; } void addenv (const char *string, /*@null@*/const char *value) { - char *cp, *newstring; - size_t i; - size_t n; + char *cp, *newstring; + size_t i, n; if (NULL != value) { - size_t len = strlen (string) + strlen (value) + 2; - int wlen; - newstring = xmalloc (len); - wlen = snprintf (newstring, len, "%s=%s", string, value); - assert (wlen == (int) len -1); + xasprintf(&newstring, "%s=%s", string, value); } else { newstring = xstrdup (string); } @@ -87,7 +86,7 @@ void addenv (const char *string, /*@null@*/const char *value) cp = strchr (newstring, '='); if (NULL == cp) { - free (newstring); + free(newstring); return; } @@ -104,7 +103,7 @@ void addenv (const char *string, /*@null@*/const char *value) } if (i < newenvc) { - free (newenvp[i]); + free(newenvp[i]); newenvp[i] = newstring; return; } @@ -127,32 +126,19 @@ void addenv (const char *string, /*@null@*/const char *value) */ if ((newenvc & (NEWENVP_STEP - 1)) == 0) { - char **__newenvp; - size_t newsize; + bool update_environ; + + update_environ = (environ == newenvp); + + newenvp = XREALLOC(newenvp, newenvc + NEWENVP_STEP, char *); /* - * If the resize operation succeeds we can - * happily go on, else print a message. + * If this is our current environment, update + * environ so that it doesn't point to some + * free memory area (realloc() could move it). */ - - newsize = (newenvc + NEWENVP_STEP) * sizeof (char *); - __newenvp = (char **) realloc (newenvp, newsize); - - if (NULL != __newenvp) { - /* - * If this is our current environment, update - * environ so that it doesn't point to some - * free memory area (realloc() could move it). - */ - if (environ == newenvp) { - environ = __newenvp; - } - newenvp = __newenvp; - } else { - (void) fputs (_("Environment overflow\n"), log_get_logfd()); - newenvc--; - free (newenvp[newenvc]); - } + if (update_environ) + environ = newenvp; } /* @@ -168,9 +154,9 @@ void addenv (const char *string, /*@null@*/const char *value) */ void set_env (int argc, char *const *argv) { - int noname = 1; - char variable[1024]; - char *cp; + int noname = 1; + char variable[1024]; + char *cp; for (; argc > 0; argc--, argv++) { if (strlen (*argv) >= sizeof variable) { @@ -179,9 +165,7 @@ void set_env (int argc, char *const *argv) cp = strchr (*argv, '='); if (NULL == cp) { - int wlen; - wlen = snprintf (variable, sizeof variable, "L%d", noname); - assert (wlen < (int) sizeof(variable)); + assert(SNPRINTF(variable, "L%d", noname) != -1); noname++; addenv (variable, *argv); } else { @@ -194,8 +178,7 @@ void set_env (int argc, char *const *argv) } if (NULL != *p) { - strncpy (variable, *argv, (size_t)(cp - *argv)); - variable[cp - *argv] = '\0'; + stpcpy(mempcpy(variable, *argv, (size_t)(cp - *argv)), ""); printf (_("You may not change $%s\n"), variable); continue; diff --git a/libmisc/failure.c b/lib/failure.c index 1aab299..e42e710 100644 --- a/libmisc/failure.c +++ b/lib/failure.c @@ -14,10 +14,16 @@ #include <fcntl.h> #include <stdio.h> #include <unistd.h> + #include "defines.h" #include "faillog.h" -#include "getdef.h" #include "failure.h" +#include "memzero.h" +#include "prototypes.h" +#include "string/strftime.h" +#include "string/strtcpy.h" + + #define YEAR (365L*DAY) /* * failure - make failure entry @@ -41,7 +47,7 @@ void failure (uid_t uid, const char *tty, struct faillog *fl) fd = open (FAILLOG_FILE, O_RDWR); if (fd < 0) { SYSLOG ((LOG_WARN, - "Can't write faillog entry for UID %lu in %s.", + "Can't write faillog entry for UID %lu in %s: %m", (unsigned long) uid, FAILLOG_FILE)); return; } @@ -53,7 +59,7 @@ void failure (uid_t uid, const char *tty, struct faillog *fl) */ if ( (lseek (fd, offset_uid, SEEK_SET) != offset_uid) - || (read (fd, (char *) fl, sizeof *fl) != (ssize_t) sizeof *fl)) { + || (read (fd, fl, sizeof *fl) != (ssize_t) sizeof *fl)) { /* This is not necessarily a failure. The file is * initially zero length. * @@ -75,7 +81,7 @@ void failure (uid_t uid, const char *tty, struct faillog *fl) fl->fail_cnt++; } - strncpy (fl->fail_line, tty, sizeof (fl->fail_line) - 1); + STRTCPY(fl->fail_line, tty); (void) time (&fl->fail_time); /* @@ -86,13 +92,26 @@ void failure (uid_t uid, const char *tty, struct faillog *fl) */ if ( (lseek (fd, offset_uid, SEEK_SET) != offset_uid) - || (write (fd, (char *) fl, sizeof *fl) != (ssize_t) sizeof *fl) - || (close (fd) != 0)) { - SYSLOG ((LOG_WARN, - "Can't write faillog entry for UID %lu in %s.", - (unsigned long) uid, FAILLOG_FILE)); + || (write_full(fd, fl, sizeof *fl) == -1)) { + goto err_write; + } + + if (close (fd) != 0 && errno != EINTR) { + goto err_close; + } + + return; + +err_write: + { + int saved_errno = errno; (void) close (fd); + errno = saved_errno; } +err_close: + SYSLOG ((LOG_WARN, + "Can't write faillog entry for UID %lu to %s: %m", + (unsigned long) uid, FAILLOG_FILE)); } static bool too_many_failures (const struct faillog *fl) @@ -144,7 +163,7 @@ int failcheck (uid_t uid, struct faillog *fl, bool failed) fd = open (FAILLOG_FILE, failed?O_RDONLY:O_RDWR); if (fd < 0) { SYSLOG ((LOG_WARN, - "Can't open the faillog file (%s) to check UID %lu. " + "Can't open the faillog file (%s) to check UID %lu: %m; " "User access authorized.", FAILLOG_FILE, (unsigned long) uid)); return 1; @@ -163,7 +182,7 @@ int failcheck (uid_t uid, struct faillog *fl, bool failed) */ if ( (lseek (fd, offset_uid, SEEK_SET) != offset_uid) - || (read (fd, (char *) fl, sizeof *fl) != (ssize_t) sizeof *fl)) { + || (read (fd, fl, sizeof *fl) != (ssize_t) sizeof *fl)) { (void) close (fd); return 1; } @@ -185,18 +204,30 @@ int failcheck (uid_t uid, struct faillog *fl, bool failed) fail.fail_cnt = 0; if ( (lseek (fd, offset_uid, SEEK_SET) != offset_uid) - || (write (fd, (const void *) &fail, sizeof fail) != (ssize_t) sizeof fail) - || (close (fd) != 0)) { - SYSLOG ((LOG_WARN, - "Can't reset faillog entry for UID %lu in %s.", - (unsigned long) uid, FAILLOG_FILE)); - (void) close (fd); + || (write_full(fd, &fail, sizeof fail) == -1)) { + goto err_write; + } + + if (close (fd) != 0 && errno != EINTR) { + goto err_close; } } else { (void) close (fd); } return 1; + +err_write: + { + int saved_errno = errno; + (void) close (fd); + errno = saved_errno; + } +err_close: + SYSLOG ((LOG_WARN, + "Can't reset faillog entry for UID %lu in %s: %m", + (unsigned long) uid, FAILLOG_FILE)); + return 1; } /* @@ -223,7 +254,7 @@ void failprint (const struct faillog *fail) /* * Print all information we have. */ - (void) strftime (lasttimeb, sizeof lasttimeb, "%c", tp); + STRFTIME(lasttimeb, "%c", tp); /*@-formatconst@*/ (void) printf (ngettext ("%d failure since last login.\n" @@ -234,62 +265,3 @@ void failprint (const struct faillog *fail) fail->fail_cnt, lasttime, fail->fail_line); /*@=formatconst@*/ } - -/* - * failtmp - update the cumulative failure log - * - * failtmp updates the (struct utmp) formatted failure log which - * maintains a record of all login failures. - */ - -void failtmp (const char *username, -#ifdef USE_UTMPX - const struct utmpx *failent -#else /* !USE_UTMPX */ - const struct utmp *failent -#endif /* !USE_UTMPX */ - ) -{ - const char *ftmp; - int fd; - - /* - * Get the name of the failure file. If no file has been defined - * in login.defs, don't do this. - */ - - ftmp = getdef_str ("FTMP_FILE"); - if (NULL == ftmp) { - return; - } - - /* - * Open the file for append. It must already exist for this - * feature to be used. - */ - - if (access (ftmp, F_OK) != 0) { - return; - } - - fd = open (ftmp, O_WRONLY | O_APPEND); - if (-1 == fd) { - SYSLOG ((LOG_WARN, - "Can't append failure of user %s to %s.", - username, ftmp)); - return; - } - - /* - * Append the new failure record and close the log file. - */ - - if ( (write (fd, (const void *) failent, sizeof *failent) != (ssize_t) sizeof *failent) - || (close (fd) != 0)) { - SYSLOG ((LOG_WARN, - "Can't append failure of user %s to %s.", - username, ftmp)); - (void) close (fd); - } -} - diff --git a/libmisc/failure.h b/lib/failure.h index 2ac30d7..1352b68 100644 --- a/libmisc/failure.h +++ b/lib/failure.h @@ -13,11 +13,6 @@ #include "defines.h" #include "faillog.h" -#ifdef USE_UTMPX -#include <utmpx.h> -#else /* !USE_UTMPX */ -#include <utmp.h> -#endif /* !USE_UTMPX */ /* * failure - make failure entry @@ -45,17 +40,5 @@ extern int failcheck (uid_t uid, struct faillog *fl, bool failed); */ extern void failprint (const struct faillog *); -/* - * failtmp - update the cumulative failure log - * - * failtmp updates the (struct utmp) formatted failure log which - * maintains a record of all login failures. - */ -#ifdef USE_UTMPX -extern void failtmp (const char *username, const struct utmpx *); -#else /* !USE_UTMPX */ -extern void failtmp (const char *username, const struct utmp *); -#endif /* !USE_UTMPX */ - #endif diff --git a/lib/fd.c b/lib/fd.c new file mode 100644 index 0000000..bcfa374 --- /dev/null +++ b/lib/fd.c @@ -0,0 +1,41 @@ +// SPDX-FileCopyrightText: 2024, Skyler Ferrante <sjf5462@rit.edu> +// SPDX-License-Identifier: BSD-3-Clause + +/** + * To protect against file descriptor omission attacks, we open the std file + * descriptors with /dev/null if they are not already open. Code is based on + * fix_fds from sudo.c. + */ + +#include <fcntl.h> +#include <stdlib.h> +#include <unistd.h> + +#include "prototypes.h" + +static void check_fd(int fd); + +void +check_fds(void) +{ + /** + * Make sure stdin, stdout, stderr are open + * If they are closed, set them to /dev/null + */ + check_fd(STDIN_FILENO); + check_fd(STDOUT_FILENO); + check_fd(STDERR_FILENO); +} + +static void +check_fd(int fd) +{ + int devnull; + + if (fcntl(fd, F_GETFL, 0) != -1) + return; + + devnull = open("/dev/null", O_RDWR); + if (devnull != fd) + abort(); +} diff --git a/lib/fields.c b/lib/fields.c index 8a56035..5392924 100644 --- a/lib/fields.c +++ b/lib/fields.c @@ -21,9 +21,9 @@ * * The supplied field is scanned for non-printable and other illegal * characters. - * + -1 is returned if an illegal character is present. - * + 1 is returned if no illegal characters are present, but the field - * contains a non-printable character. + * + -1 is returned if an illegal or control character is present. + * + 1 is returned if no illegal or control characters are present, + * but the field contains a non-printable character. * + 0 is returned otherwise. */ int valid_field (const char *field, const char *illegal) @@ -37,23 +37,22 @@ int valid_field (const char *field, const char *illegal) /* For each character of field, search if it appears in the list * of illegal characters. */ + if (illegal && NULL != strpbrk (field, illegal)) { + return -1; + } + + /* Search if there are non-printable or control characters */ for (cp = field; '\0' != *cp; cp++) { - if (strchr (illegal, *cp) != NULL) { + unsigned char c = *cp; + if (!isprint (c)) { + err = 1; + } + if (iscntrl (c)) { err = -1; break; } } - if (0 == err) { - /* Search if there are some non-printable characters */ - for (cp = field; '\0' != *cp; cp++) { - if (!isprint (*cp)) { - err = 1; - break; - } - } - } - return err; } @@ -74,7 +73,7 @@ void change_field (char *buf, size_t maxsize, const char *prompt) printf ("\t%s [%s]: ", prompt, buf); (void) fflush (stdout); - if (fgets (newf, (int) maxsize, stdin) != newf) { + if (fgets (newf, maxsize, stdin) != newf) { return; } @@ -91,17 +90,16 @@ void change_field (char *buf, size_t maxsize, const char *prompt) * entering a space. --marekm */ - while (--cp >= newf && isspace (*cp)); - cp++; + while (newf < cp && isspace (cp[-1])) { + cp--; + } *cp = '\0'; cp = newf; - while (('\0' != *cp) && isspace (*cp)) { + while (isspace (*cp)) { cp++; } - strncpy (buf, cp, maxsize - 1); - buf[maxsize - 1] = '\0'; + strcpy (buf, cp); } } - diff --git a/libmisc/find_new_gid.c b/lib/find_new_gid.c index 65ab5d0..cfd5609 100644 --- a/libmisc/find_new_gid.c +++ b/lib/find_new_gid.c @@ -12,6 +12,7 @@ #include <stdio.h> #include <errno.h> +#include "alloc.h" #include "prototypes.h" #include "groupio.h" #include "getdef.h" @@ -40,15 +41,14 @@ static int get_ranges (bool sys_group, gid_t *min_id, gid_t *max_id, *preferred_min = (gid_t) 1; /* Get the minimum ID range from login.defs or default to 101 */ - *min_id = (gid_t) getdef_ulong ("SYS_GID_MIN", 101UL); + *min_id = getdef_ulong ("SYS_GID_MIN", 101UL); /* * If SYS_GID_MAX is unspecified, we should assume it to be one * less than the GID_MIN (which is reserved for non-system accounts) */ - gid_def_max = (gid_t) getdef_ulong ("GID_MIN", 1000UL) - 1; - *max_id = (gid_t) getdef_ulong ("SYS_GID_MAX", - (unsigned long) gid_def_max); + gid_def_max = getdef_ulong ("GID_MIN", 1000UL) - 1; + *max_id = getdef_ulong ("SYS_GID_MAX", gid_def_max); /* Check that the ranges make sense */ if (*max_id < *min_id) { @@ -71,8 +71,8 @@ static int get_ranges (bool sys_group, gid_t *min_id, gid_t *max_id, /* Non-system groups */ /* Get the values from login.defs or use reasonable defaults */ - *min_id = (gid_t) getdef_ulong ("GID_MIN", 1000UL); - *max_id = (gid_t) getdef_ulong ("GID_MAX", 60000UL); + *min_id = getdef_ulong ("GID_MIN", 1000UL); + *max_id = getdef_ulong ("GID_MAX", 60000UL); /* * The preferred minimum should match the standard ID minimum @@ -99,6 +99,7 @@ static int get_ranges (bool sys_group, gid_t *min_id, gid_t *max_id, * * On success, return 0 * If the ID is in use, return EEXIST + * If the ID might clash with -1, return EINVAL * If the ID is outside the range, return ERANGE * In other cases, return errno from getgrgid() */ @@ -112,6 +113,11 @@ static int check_gid (const gid_t gid, return ERANGE; } + /* Check for compatibility with 16b and 32b gid_t error codes */ + if (gid == UINT16_MAX || gid == UINT32_MAX) { + return EINVAL; + } + /* * Check whether we already detected this GID * using the gr_next() loop @@ -183,10 +189,10 @@ int find_new_gid (bool sys_group, * gr_locate_gid() found the GID in an as-yet uncommitted * entry. We'll proceed below and auto-set a GID. */ - } else if (result == EEXIST || result == ERANGE) { + } else if (result == EEXIST || result == ERANGE || result == EINVAL) { /* * Continue on below. At this time, we won't - * treat these two cases differently. + * treat these three cases differently. */ } else { /* @@ -226,14 +232,13 @@ int find_new_gid (bool sys_group, */ /* Create an array to hold all of the discovered GIDs */ - used_gids = malloc (sizeof (bool) * (gid_max +1)); + used_gids = CALLOC (gid_max + 1, bool); if (NULL == used_gids) { fprintf (log_get_logfd(), _("%s: failed to allocate memory: %s\n"), log_get_progname(), strerror (errno)); return -1; } - memset (used_gids, false, sizeof (bool) * (gid_max + 1)); /* First look for the lowest and highest value in the local database */ (void) gr_rewind (); @@ -297,8 +302,11 @@ int find_new_gid (bool sys_group, *gid = id; free (used_gids); return 0; - } else if (result == EEXIST) { - /* This GID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. @@ -340,8 +348,11 @@ int find_new_gid (bool sys_group, *gid = id; free (used_gids); return 0; - } else if (result == EEXIST) { - /* This GID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. @@ -400,8 +411,11 @@ int find_new_gid (bool sys_group, *gid = id; free (used_gids); return 0; - } else if (result == EEXIST) { - /* This GID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. @@ -443,8 +457,11 @@ int find_new_gid (bool sys_group, *gid = id; free (used_gids); return 0; - } else if (result == EEXIST) { - /* This GID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. diff --git a/libmisc/find_new_sub_gids.c b/lib/find_new_sub_gids.c index bbd4570..74c9d8f 100644 --- a/libmisc/find_new_sub_gids.c +++ b/lib/find_new_sub_gids.c @@ -59,6 +59,6 @@ int find_new_sub_gids (gid_t *range_start, unsigned long *range_count) return 0; } #else /* !ENABLE_SUBIDS */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !ENABLE_SUBIDS */ diff --git a/libmisc/find_new_sub_uids.c b/lib/find_new_sub_uids.c index a86b311..cc4b0cf 100644 --- a/libmisc/find_new_sub_uids.c +++ b/lib/find_new_sub_uids.c @@ -59,6 +59,6 @@ int find_new_sub_uids (uid_t *range_start, unsigned long *range_count) return 0; } #else /* !ENABLE_SUBIDS */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !ENABLE_SUBIDS */ diff --git a/libmisc/find_new_uid.c b/lib/find_new_uid.c index 5f7e74b..45ce712 100644 --- a/libmisc/find_new_uid.c +++ b/lib/find_new_uid.c @@ -12,6 +12,7 @@ #include <stdio.h> #include <errno.h> +#include "alloc.h" #include "prototypes.h" #include "pwio.h" #include "getdef.h" @@ -40,15 +41,14 @@ static int get_ranges (bool sys_user, uid_t *min_id, uid_t *max_id, *preferred_min = (uid_t) 1; /* Get the minimum ID range from login.defs or default to 101 */ - *min_id = (uid_t) getdef_ulong ("SYS_UID_MIN", 101UL); + *min_id = getdef_ulong ("SYS_UID_MIN", 101UL); /* * If SYS_UID_MAX is unspecified, we should assume it to be one * less than the UID_MIN (which is reserved for non-system accounts) */ - uid_def_max = (uid_t) getdef_ulong ("UID_MIN", 1000UL) - 1; - *max_id = (uid_t) getdef_ulong ("SYS_UID_MAX", - (unsigned long) uid_def_max); + uid_def_max = getdef_ulong ("UID_MIN", 1000UL) - 1; + *max_id = getdef_ulong ("SYS_UID_MAX", uid_def_max); /* Check that the ranges make sense */ if (*max_id < *min_id) { @@ -71,8 +71,8 @@ static int get_ranges (bool sys_user, uid_t *min_id, uid_t *max_id, /* Non-system users */ /* Get the values from login.defs or use reasonable defaults */ - *min_id = (uid_t) getdef_ulong ("UID_MIN", 1000UL); - *max_id = (uid_t) getdef_ulong ("UID_MAX", 60000UL); + *min_id = getdef_ulong ("UID_MIN", 1000UL); + *max_id = getdef_ulong ("UID_MAX", 60000UL); /* * The preferred minimum should match the standard ID minimum @@ -99,6 +99,7 @@ static int get_ranges (bool sys_user, uid_t *min_id, uid_t *max_id, * * On success, return 0 * If the ID is in use, return EEXIST + * If the ID might clash with -1, return EINVAL * If the ID is outside the range, return ERANGE * In other cases, return errno from getpwuid() */ @@ -112,6 +113,11 @@ static int check_uid(const uid_t uid, return ERANGE; } + /* Check for compatibility with 16b and 32b uid_t error codes */ + if (uid == UINT16_MAX || uid == UINT32_MAX) { + return EINVAL; + } + /* * Check whether we already detected this UID * using the pw_next() loop @@ -183,10 +189,10 @@ int find_new_uid(bool sys_user, * pw_locate_uid() found the UID in an as-yet uncommitted * entry. We'll proceed below and auto-set an UID. */ - } else if (result == EEXIST || result == ERANGE) { + } else if (result == EEXIST || result == ERANGE || result == EINVAL) { /* * Continue on below. At this time, we won't - * treat these two cases differently. + * treat these three cases differently. */ } else { /* @@ -226,14 +232,13 @@ int find_new_uid(bool sys_user, */ /* Create an array to hold all of the discovered UIDs */ - used_uids = malloc (sizeof (bool) * (uid_max +1)); + used_uids = CALLOC(uid_max + 1, bool); if (NULL == used_uids) { fprintf (log_get_logfd(), _("%s: failed to allocate memory: %s\n"), log_get_progname(), strerror (errno)); return -1; } - memset (used_uids, false, sizeof (bool) * (uid_max + 1)); /* First look for the lowest and highest value in the local database */ (void) pw_rewind (); @@ -297,8 +302,11 @@ int find_new_uid(bool sys_user, *uid = id; free (used_uids); return 0; - } else if (result == EEXIST) { - /* This UID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. @@ -340,8 +348,11 @@ int find_new_uid(bool sys_user, *uid = id; free (used_uids); return 0; - } else if (result == EEXIST) { - /* This UID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. @@ -400,8 +411,11 @@ int find_new_uid(bool sys_user, *uid = id; free (used_uids); return 0; - } else if (result == EEXIST) { - /* This UID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. @@ -443,8 +457,11 @@ int find_new_uid(bool sys_user, *uid = id; free (used_uids); return 0; - } else if (result == EEXIST) { - /* This UID is in use, we'll continue to the next */ + } else if (result == EEXIST || result == EINVAL) { + /* + * This GID is in use or unusable, we'll + * continue to the next. + */ } else { /* * An unexpected error occurred. diff --git a/lib/fputsx.c b/lib/fputsx.c index bb71ab2..0565310 100644 --- a/lib/fputsx.c +++ b/lib/fputsx.c @@ -16,7 +16,8 @@ #ident "$Id$" -/*@null@*/char *fgetsx (/*@returned@*/ /*@out@*/char *buf, int cnt, FILE * f) +/*@null@*/char * +fgetsx(/*@returned@*/char *restrict buf, int cnt, FILE *restrict f) { char *cp = buf; char *ep; diff --git a/lib/freezero.c b/lib/freezero.c new file mode 100644 index 0000000..c565f43 --- /dev/null +++ b/lib/freezero.c @@ -0,0 +1,30 @@ +/* $OpenBSD: malloc.c,v 1.267 2020/11/23 15:42:11 otto Exp $ */ +/* + * Copyright (c) 2008, 2010, 2011, 2016 Otto Moerbeek <otto@drijf.net> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <stdlib.h> +#include <string.h> + +void +freezero(void *ptr, size_t sz) +{ + /* This is legal. */ + if (ptr == NULL) + return; + + explicit_bzero(ptr, sz); + free(ptr); +} diff --git a/lib/freezero.h b/lib/freezero.h new file mode 100644 index 0000000..8dbcd7c --- /dev/null +++ b/lib/freezero.h @@ -0,0 +1,34 @@ +/* + * Copyright © 2005 Aurelien Jarno + * Copyright © 2006 Robert Millan + * Copyright © 2008-2011 Guillem Jover <guillem@hadrons.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef LIBBSD_FREEZERO_H +#define LIBBSD_FREEZERO_H + +void freezero(void *ptr, size_t size); + +#endif diff --git a/lib/get_gid.c b/lib/get_gid.c index cbcd6f4..2420137 100644 --- a/lib/get_gid.c +++ b/lib/get_gid.c @@ -4,6 +4,7 @@ * SPDX-License-Identifier: BSD-3-Clause */ + #include <config.h> #ident "$Id$" @@ -11,21 +12,23 @@ #include "prototypes.h" #include "defines.h" -int get_gid (const char *gidstr, gid_t *gid) + +int +get_gid(const char *gidstr, gid_t *gid) { - long long int val; - char *endptr; + char *end; + long long val; errno = 0; - val = strtoll (gidstr, &endptr, 10); + val = strtoll(gidstr, &end, 10); if ( ('\0' == *gidstr) - || ('\0' != *endptr) - || (ERANGE == errno) + || ('\0' != *end) + || (0 != errno) || (/*@+longintegral@*/val != (gid_t)val)/*@=longintegral@*/) { - return 0; + return -1; } - *gid = (gid_t)val; - return 1; + *gid = val; + return 0; } diff --git a/lib/get_pid.c b/lib/get_pid.c index 383eb69..af3f2f8 100644 --- a/lib/get_pid.c +++ b/lib/get_pid.c @@ -10,22 +10,94 @@ #include "prototypes.h" #include "defines.h" +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> -int get_pid (const char *pidstr, pid_t *pid) +#include "string/sprintf.h" + + +int +get_pid(const char *pidstr, pid_t *pid) { - long long int val; - char *endptr; + char *end; + long long val; errno = 0; - val = strtoll (pidstr, &endptr, 10); + val = strtoll(pidstr, &end, 10); if ( ('\0' == *pidstr) - || ('\0' != *endptr) - || (ERANGE == errno) + || ('\0' != *end) + || (0 != errno) + || (val < 1) || (/*@+longintegral@*/val != (pid_t)val)/*@=longintegral@*/) { - return 0; + return -1; } - *pid = (pid_t)val; - return 1; + *pid = val; + return 0; } +/* + * If use passed in fd:4 as an argument, then return the + * value '4', the fd to use. + * On error, return -1. + */ +int get_pidfd_from_fd(const char *pidfdstr) +{ + char *end; + long long val; + struct stat st; + dev_t proc_st_dev, proc_st_rdev; + + errno = 0; + val = strtoll(pidfdstr, &end, 10); + if ( ('\0' == *pidfdstr) + || ('\0' != *end) + || (0 != errno) + || (val < 0) + || (/*@+longintegral@*/val != (int)val)/*@=longintegral@*/) { + return -1; + } + + if (stat("/proc/self/uid_map", &st) < 0) { + return -1; + } + + proc_st_dev = st.st_dev; + proc_st_rdev = st.st_rdev; + + if (fstat(val, &st) < 0) { + return -1; + } + + if (st.st_dev != proc_st_dev || st.st_rdev != proc_st_rdev) { + return -1; + } + + return (int)val; +} + +int open_pidfd(const char *pidstr) +{ + int proc_dir_fd; + char proc_dir_name[32]; + pid_t target; + + if (get_pid(pidstr, &target) == -1) + return -ENOENT; + + /* max string length is 6 + 10 + 1 + 1 = 18, allocate 32 bytes */ + if (SNPRINTF(proc_dir_name, "/proc/%u/", target) == -1) { + fprintf(stderr, "snprintf of proc path failed for %u: %s\n", + target, strerror(errno)); + return -EINVAL; + } + + proc_dir_fd = open(proc_dir_name, O_DIRECTORY); + if (proc_dir_fd < 0) { + fprintf(stderr, _("Could not open proc directory for target %u: %s\n"), + target, strerror(errno)); + return -EINVAL; + } + return proc_dir_fd; +} diff --git a/lib/get_uid.c b/lib/get_uid.c index 50f9922..77fe966 100644 --- a/lib/get_uid.c +++ b/lib/get_uid.c @@ -4,6 +4,7 @@ * SPDX-License-Identifier: BSD-3-Clause */ + #include <config.h> #ident "$Id$" @@ -11,21 +12,23 @@ #include "prototypes.h" #include "defines.h" -int get_uid (const char *uidstr, uid_t *uid) + +int +get_uid(const char *uidstr, uid_t *uid) { - long long int val; - char *endptr; + char *end; + long long val; errno = 0; - val = strtoll (uidstr, &endptr, 10); + val = strtoll(uidstr, &end, 10); if ( ('\0' == *uidstr) - || ('\0' != *endptr) - || (ERANGE == errno) + || ('\0' != *end) + || (0 != errno) || (/*@+longintegral@*/val != (uid_t)val)/*@=longintegral@*/) { - return 0; + return -1; } - *uid = (uid_t)val; - return 1; + *uid = val; + return 0; } diff --git a/libmisc/getdate.c b/lib/getdate.c index fc17c18..556ce62 100644 --- a/libmisc/getdate.c +++ b/lib/getdate.c @@ -82,9 +82,6 @@ #ifdef HAVE_CONFIG_H # include <config.h> -# ifdef FORCE_ALLOCA_H -# include <alloca.h> -# endif #endif /* Since the code of getdate.y is not included in the Emacs executable @@ -101,6 +98,7 @@ #include <ctype.h> #include <time.h> +#include "attr.h" #include "getdate.h" #include <string.h> @@ -215,7 +213,7 @@ static int yyRelSeconds; static int yyRelYear; -#line 219 "getdate.c" +#line 217 "getdate.c" # ifndef YY_CAST # ifdef __cplusplus @@ -301,12 +299,12 @@ extern int yydebug; #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED union YYSTYPE { -#line 149 "getdate.y" +#line 147 "getdate.y" int Number; enum _MERIDIAN Meridian; -#line 310 "getdate.c" +#line 308 "getdate.c" }; typedef union YYSTYPE YYSTYPE; @@ -746,12 +744,12 @@ static const yytype_int8 yytranslate[] = /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */ static const yytype_int16 yyrline[] = { - 0, 165, 165, 166, 169, 172, 175, 178, 181, 184, - 187, 193, 199, 208, 214, 226, 229, 233, 238, 242, - 246, 252, 256, 274, 280, 286, 290, 295, 299, 306, - 314, 317, 320, 323, 326, 329, 332, 335, 338, 341, - 344, 347, 350, 353, 356, 359, 362, 365, 368, 373, - 407, 410 + 0, 163, 163, 164, 167, 170, 173, 176, 179, 182, + 185, 191, 197, 206, 212, 224, 227, 231, 236, 240, + 244, 250, 254, 272, 278, 284, 288, 293, 297, 304, + 312, 315, 318, 321, 324, 327, 330, 333, 336, 339, + 342, 345, 348, 351, 354, 357, 360, 363, 366, 371, + 405, 408 }; #endif @@ -1352,69 +1350,69 @@ yyreduce: switch (yyn) { case 4: /* item: time */ -#line 169 "getdate.y" +#line 167 "getdate.y" { yyHaveTime++; } -#line 1360 "getdate.c" +#line 1358 "getdate.c" break; case 5: /* item: zone */ -#line 172 "getdate.y" +#line 170 "getdate.y" { yyHaveZone++; } -#line 1368 "getdate.c" +#line 1366 "getdate.c" break; case 6: /* item: date */ -#line 175 "getdate.y" +#line 173 "getdate.y" { yyHaveDate++; } -#line 1376 "getdate.c" +#line 1374 "getdate.c" break; case 7: /* item: day */ -#line 178 "getdate.y" +#line 176 "getdate.y" { yyHaveDay++; } -#line 1384 "getdate.c" +#line 1382 "getdate.c" break; case 8: /* item: rel */ -#line 181 "getdate.y" +#line 179 "getdate.y" { yyHaveRel++; } -#line 1392 "getdate.c" +#line 1390 "getdate.c" break; case 10: /* time: tUNUMBER tMERIDIAN */ -#line 187 "getdate.y" +#line 185 "getdate.y" { yyHour = (yyvsp[-1].Number); yyMinutes = 0; yySeconds = 0; yyMeridian = (yyvsp[0].Meridian); } -#line 1403 "getdate.c" +#line 1401 "getdate.c" break; case 11: /* time: tUNUMBER ':' tUNUMBER o_merid */ -#line 193 "getdate.y" +#line 191 "getdate.y" { yyHour = (yyvsp[-3].Number); yyMinutes = (yyvsp[-1].Number); yySeconds = 0; yyMeridian = (yyvsp[0].Meridian); } -#line 1414 "getdate.c" +#line 1412 "getdate.c" break; case 12: /* time: tUNUMBER ':' tUNUMBER tSNUMBER */ -#line 199 "getdate.y" +#line 197 "getdate.y" { yyHour = (yyvsp[-3].Number); yyMinutes = (yyvsp[-1].Number); @@ -1424,22 +1422,22 @@ yyreduce: ? -(yyvsp[0].Number) % 100 + (-(yyvsp[0].Number) / 100) * 60 : - ((yyvsp[0].Number) % 100 + ((yyvsp[0].Number) / 100) * 60)); } -#line 1428 "getdate.c" +#line 1426 "getdate.c" break; case 13: /* time: tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid */ -#line 208 "getdate.y" +#line 206 "getdate.y" { yyHour = (yyvsp[-5].Number); yyMinutes = (yyvsp[-3].Number); yySeconds = (yyvsp[-1].Number); yyMeridian = (yyvsp[0].Meridian); } -#line 1439 "getdate.c" +#line 1437 "getdate.c" break; case 14: /* time: tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER */ -#line 214 "getdate.y" +#line 212 "getdate.y" { yyHour = (yyvsp[-5].Number); yyMinutes = (yyvsp[-3].Number); @@ -1450,71 +1448,71 @@ yyreduce: ? -(yyvsp[0].Number) % 100 + (-(yyvsp[0].Number) / 100) * 60 : - ((yyvsp[0].Number) % 100 + ((yyvsp[0].Number) / 100) * 60)); } -#line 1454 "getdate.c" +#line 1452 "getdate.c" break; case 15: /* zone: tZONE */ -#line 226 "getdate.y" +#line 224 "getdate.y" { yyTimezone = (yyvsp[0].Number); } -#line 1462 "getdate.c" +#line 1460 "getdate.c" break; case 16: /* zone: tDAYZONE */ -#line 229 "getdate.y" +#line 227 "getdate.y" { yyTimezone = (yyvsp[0].Number) - 60; } -#line 1470 "getdate.c" +#line 1468 "getdate.c" break; case 17: /* zone: tZONE tDST */ -#line 233 "getdate.y" +#line 231 "getdate.y" { yyTimezone = (yyvsp[-1].Number) - 60; } -#line 1478 "getdate.c" +#line 1476 "getdate.c" break; case 18: /* day: tDAY */ -#line 238 "getdate.y" +#line 236 "getdate.y" { yyDayOrdinal = 1; yyDayNumber = (yyvsp[0].Number); } -#line 1487 "getdate.c" +#line 1485 "getdate.c" break; case 19: /* day: tDAY ',' */ -#line 242 "getdate.y" +#line 240 "getdate.y" { yyDayOrdinal = 1; yyDayNumber = (yyvsp[-1].Number); } -#line 1496 "getdate.c" +#line 1494 "getdate.c" break; case 20: /* day: tUNUMBER tDAY */ -#line 246 "getdate.y" +#line 244 "getdate.y" { yyDayOrdinal = (yyvsp[-1].Number); yyDayNumber = (yyvsp[0].Number); } -#line 1505 "getdate.c" +#line 1503 "getdate.c" break; case 21: /* date: tUNUMBER '/' tUNUMBER */ -#line 252 "getdate.y" +#line 250 "getdate.y" { yyMonth = (yyvsp[-2].Number); yyDay = (yyvsp[0].Number); } -#line 1514 "getdate.c" +#line 1512 "getdate.c" break; case 22: /* date: tUNUMBER '/' tUNUMBER '/' tUNUMBER */ -#line 256 "getdate.y" +#line 254 "getdate.y" { /* Interpret as YYYY/MM/DD if $1 >= 1000, otherwise as MM/DD/YY. The goal in recognizing YYYY/MM/DD is solely to support legacy @@ -1533,71 +1531,71 @@ yyreduce: yyYear = (yyvsp[0].Number); } } -#line 1537 "getdate.c" +#line 1535 "getdate.c" break; case 23: /* date: tUNUMBER tSNUMBER tSNUMBER */ -#line 274 "getdate.y" +#line 272 "getdate.y" { /* ISO 8601 format. yyyy-mm-dd. */ yyYear = (yyvsp[-2].Number); yyMonth = -(yyvsp[-1].Number); yyDay = -(yyvsp[0].Number); } -#line 1548 "getdate.c" +#line 1546 "getdate.c" break; case 24: /* date: tUNUMBER tMONTH tSNUMBER */ -#line 280 "getdate.y" +#line 278 "getdate.y" { /* e.g. 17-JUN-1992. */ yyDay = (yyvsp[-2].Number); yyMonth = (yyvsp[-1].Number); yyYear = -(yyvsp[0].Number); } -#line 1559 "getdate.c" +#line 1557 "getdate.c" break; case 25: /* date: tMONTH tUNUMBER */ -#line 286 "getdate.y" +#line 284 "getdate.y" { yyMonth = (yyvsp[-1].Number); yyDay = (yyvsp[0].Number); } -#line 1568 "getdate.c" +#line 1566 "getdate.c" break; case 26: /* date: tMONTH tUNUMBER ',' tUNUMBER */ -#line 290 "getdate.y" +#line 288 "getdate.y" { yyMonth = (yyvsp[-3].Number); yyDay = (yyvsp[-2].Number); yyYear = (yyvsp[0].Number); } -#line 1578 "getdate.c" +#line 1576 "getdate.c" break; case 27: /* date: tUNUMBER tMONTH */ -#line 295 "getdate.y" +#line 293 "getdate.y" { yyMonth = (yyvsp[0].Number); yyDay = (yyvsp[-1].Number); } -#line 1587 "getdate.c" +#line 1585 "getdate.c" break; case 28: /* date: tUNUMBER tMONTH tUNUMBER */ -#line 299 "getdate.y" +#line 297 "getdate.y" { yyMonth = (yyvsp[-1].Number); yyDay = (yyvsp[-2].Number); yyYear = (yyvsp[0].Number); } -#line 1597 "getdate.c" +#line 1595 "getdate.c" break; case 29: /* rel: relunit tAGO */ -#line 306 "getdate.y" +#line 304 "getdate.y" { yyRelSeconds = -yyRelSeconds; yyRelMinutes = -yyRelMinutes; @@ -1606,155 +1604,155 @@ yyreduce: yyRelMonth = -yyRelMonth; yyRelYear = -yyRelYear; } -#line 1610 "getdate.c" +#line 1608 "getdate.c" break; case 31: /* relunit: tUNUMBER tYEAR_UNIT */ -#line 317 "getdate.y" +#line 315 "getdate.y" { yyRelYear += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1618 "getdate.c" +#line 1616 "getdate.c" break; case 32: /* relunit: tSNUMBER tYEAR_UNIT */ -#line 320 "getdate.y" +#line 318 "getdate.y" { yyRelYear += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1626 "getdate.c" +#line 1624 "getdate.c" break; case 33: /* relunit: tYEAR_UNIT */ -#line 323 "getdate.y" +#line 321 "getdate.y" { - yyRelYear++; + yyRelYear += (yyvsp[0].Number); } -#line 1634 "getdate.c" +#line 1632 "getdate.c" break; case 34: /* relunit: tUNUMBER tMONTH_UNIT */ -#line 326 "getdate.y" +#line 324 "getdate.y" { yyRelMonth += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1642 "getdate.c" +#line 1640 "getdate.c" break; case 35: /* relunit: tSNUMBER tMONTH_UNIT */ -#line 329 "getdate.y" +#line 327 "getdate.y" { yyRelMonth += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1650 "getdate.c" +#line 1648 "getdate.c" break; case 36: /* relunit: tMONTH_UNIT */ -#line 332 "getdate.y" +#line 330 "getdate.y" { - yyRelMonth++; + yyRelMonth += (yyvsp[0].Number); } -#line 1658 "getdate.c" +#line 1656 "getdate.c" break; case 37: /* relunit: tUNUMBER tDAY_UNIT */ -#line 335 "getdate.y" +#line 333 "getdate.y" { yyRelDay += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1666 "getdate.c" +#line 1664 "getdate.c" break; case 38: /* relunit: tSNUMBER tDAY_UNIT */ -#line 338 "getdate.y" +#line 336 "getdate.y" { yyRelDay += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1674 "getdate.c" +#line 1672 "getdate.c" break; case 39: /* relunit: tDAY_UNIT */ -#line 341 "getdate.y" +#line 339 "getdate.y" { - yyRelDay++; + yyRelDay += (yyvsp[0].Number); } -#line 1682 "getdate.c" +#line 1680 "getdate.c" break; case 40: /* relunit: tUNUMBER tHOUR_UNIT */ -#line 344 "getdate.y" +#line 342 "getdate.y" { yyRelHour += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1690 "getdate.c" +#line 1688 "getdate.c" break; case 41: /* relunit: tSNUMBER tHOUR_UNIT */ -#line 347 "getdate.y" +#line 345 "getdate.y" { yyRelHour += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1698 "getdate.c" +#line 1696 "getdate.c" break; case 42: /* relunit: tHOUR_UNIT */ -#line 350 "getdate.y" +#line 348 "getdate.y" { - yyRelHour++; + yyRelHour += (yyvsp[0].Number); } -#line 1706 "getdate.c" +#line 1704 "getdate.c" break; case 43: /* relunit: tUNUMBER tMINUTE_UNIT */ -#line 353 "getdate.y" +#line 351 "getdate.y" { yyRelMinutes += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1714 "getdate.c" +#line 1712 "getdate.c" break; case 44: /* relunit: tSNUMBER tMINUTE_UNIT */ -#line 356 "getdate.y" +#line 354 "getdate.y" { yyRelMinutes += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1722 "getdate.c" +#line 1720 "getdate.c" break; case 45: /* relunit: tMINUTE_UNIT */ -#line 359 "getdate.y" +#line 357 "getdate.y" { - yyRelMinutes++; + yyRelMinutes += (yyvsp[0].Number); } -#line 1730 "getdate.c" +#line 1728 "getdate.c" break; case 46: /* relunit: tUNUMBER tSEC_UNIT */ -#line 362 "getdate.y" +#line 360 "getdate.y" { yyRelSeconds += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1738 "getdate.c" +#line 1736 "getdate.c" break; case 47: /* relunit: tSNUMBER tSEC_UNIT */ -#line 365 "getdate.y" +#line 363 "getdate.y" { yyRelSeconds += (yyvsp[-1].Number) * (yyvsp[0].Number); } -#line 1746 "getdate.c" +#line 1744 "getdate.c" break; case 48: /* relunit: tSEC_UNIT */ -#line 368 "getdate.y" +#line 366 "getdate.y" { - yyRelSeconds++; + yyRelSeconds += (yyvsp[0].Number); } -#line 1754 "getdate.c" +#line 1752 "getdate.c" break; case 49: /* number: tUNUMBER */ -#line 374 "getdate.y" +#line 372 "getdate.y" { if ((yyHaveTime != 0) && (yyHaveDate != 0) && (yyHaveRel == 0)) yyYear = (yyvsp[0].Number); @@ -1785,27 +1783,27 @@ yyreduce: } } } -#line 1789 "getdate.c" +#line 1787 "getdate.c" break; case 50: /* o_merid: %empty */ -#line 407 "getdate.y" +#line 405 "getdate.y" { (yyval.Meridian) = MER24; } -#line 1797 "getdate.c" +#line 1795 "getdate.c" break; case 51: /* o_merid: tMERIDIAN */ -#line 411 "getdate.y" +#line 409 "getdate.y" { (yyval.Meridian) = (yyvsp[0].Meridian); } -#line 1805 "getdate.c" +#line 1803 "getdate.c" break; -#line 1809 "getdate.c" +#line 1807 "getdate.c" default: break; } @@ -1998,7 +1996,7 @@ yyreturnlab: return yyresult; } -#line 416 "getdate.y" +#line 414 "getdate.y" /* Month and day table. */ @@ -2158,7 +2156,7 @@ static TABLE const MilitaryTable[] = { -static int yyerror (unused const char *s) +static int yyerror (MAYBE_UNUSED const char *s) { return 0; } @@ -2511,11 +2509,8 @@ time_t get_date (const char *p, const time_t *now) #if defined (TEST) -/* ARGSUSED */ int -main (ac, av) - int ac; - char *av[]; +main(void) { char buff[MAX_BUFF_LEN + 1]; time_t d; diff --git a/libmisc/getdate.h b/lib/getdate.h index eae56f6..eae56f6 100644 --- a/libmisc/getdate.h +++ b/lib/getdate.h diff --git a/libmisc/getdate.y b/lib/getdate.y index 0c07f74..8cea2cc 100644 --- a/libmisc/getdate.y +++ b/lib/getdate.y @@ -12,9 +12,6 @@ #ifdef HAVE_CONFIG_H # include <config.h> -# ifdef FORCE_ALLOCA_H -# include <alloca.h> -# endif #endif /* Since the code of getdate.y is not included in the Emacs executable @@ -31,6 +28,7 @@ #include <ctype.h> #include <time.h> +#include "attr.h" #include "getdate.h" #include <string.h> @@ -321,7 +319,7 @@ relunit : tUNUMBER tYEAR_UNIT { yyRelYear += $1 * $2; } | tYEAR_UNIT { - yyRelYear++; + yyRelYear += $1; } | tUNUMBER tMONTH_UNIT { yyRelMonth += $1 * $2; @@ -330,7 +328,7 @@ relunit : tUNUMBER tYEAR_UNIT { yyRelMonth += $1 * $2; } | tMONTH_UNIT { - yyRelMonth++; + yyRelMonth += $1; } | tUNUMBER tDAY_UNIT { yyRelDay += $1 * $2; @@ -339,7 +337,7 @@ relunit : tUNUMBER tYEAR_UNIT { yyRelDay += $1 * $2; } | tDAY_UNIT { - yyRelDay++; + yyRelDay += $1; } | tUNUMBER tHOUR_UNIT { yyRelHour += $1 * $2; @@ -348,7 +346,7 @@ relunit : tUNUMBER tYEAR_UNIT { yyRelHour += $1 * $2; } | tHOUR_UNIT { - yyRelHour++; + yyRelHour += $1; } | tUNUMBER tMINUTE_UNIT { yyRelMinutes += $1 * $2; @@ -357,7 +355,7 @@ relunit : tUNUMBER tYEAR_UNIT { yyRelMinutes += $1 * $2; } | tMINUTE_UNIT { - yyRelMinutes++; + yyRelMinutes += $1; } | tUNUMBER tSEC_UNIT { yyRelSeconds += $1 * $2; @@ -366,7 +364,7 @@ relunit : tUNUMBER tYEAR_UNIT { yyRelSeconds += $1 * $2; } | tSEC_UNIT { - yyRelSeconds++; + yyRelSeconds += $1; } ; @@ -572,7 +570,7 @@ static TABLE const MilitaryTable[] = { -static int yyerror (unused const char *s) +static int yyerror (MAYBE_UNUSED const char *s) { return 0; } @@ -925,11 +923,8 @@ time_t get_date (const char *p, const time_t *now) #if defined (TEST) -/* ARGSUSED */ int -main (ac, av) - int ac; - char *av[]; +main(void) { char buff[MAX_BUFF_LEN + 1]; time_t d; diff --git a/lib/getdef.c b/lib/getdef.c index dcd1fe7..30f54ba 100644 --- a/lib/getdef.c +++ b/lib/getdef.c @@ -13,6 +13,7 @@ #include "prototypes.h" #include "defines.h" +#include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <ctype.h> @@ -20,8 +21,14 @@ #ifdef USE_ECONF #include <libeconf.h> #endif + +#include "alloc.h" +#include "atoi/str2i.h" #include "getdef.h" #include "shadowlog_internal.h" +#include "string/sprintf.h" + + /* * A configuration item definition. */ @@ -33,7 +40,6 @@ struct itemdef { #define PAMDEFS \ {"CHFN_AUTH", NULL}, \ {"CHSH_AUTH", NULL}, \ - {"CRACKLIB_DICTPATH", NULL}, \ {"ENV_HZ", NULL}, \ {"ENVIRON_FILE", NULL}, \ {"ENV_TZ", NULL}, \ @@ -132,10 +138,8 @@ static struct itemdef def_table[] = { #ifndef USE_PAM PAMDEFS #endif -#ifdef USE_SYSLOG {"SYSLOG_SG_ENAB", NULL}, {"SYSLOG_SU_ENAB", NULL}, -#endif #ifdef WITH_TCB {"TCB_AUTH_GROUP", NULL}, {"TCB_SYMLINKS", NULL}, @@ -173,7 +177,7 @@ static const char* def_fname = LOGINDEFS; /* login config defs file */ static bool def_loaded = false; /* are defs already loaded? */ /* local function prototypes */ -static /*@observer@*/ /*@null@*/struct itemdef *def_find (const char *); +static /*@observer@*/ /*@null@*/struct itemdef *def_find (const char *, const char *); static void def_load (void); @@ -192,8 +196,8 @@ static void def_load (void); def_load (); } - d = def_find (item); - return ((NULL == d)? (const char *) NULL : d->value); + d = def_find (item, NULL); + return (NULL == d) ? NULL : d->value; } @@ -211,7 +215,7 @@ bool getdef_bool (const char *item) def_load (); } - d = def_find (item); + d = def_find (item, NULL); if ((NULL == d) || (NULL == d->value)) { return false; } @@ -237,21 +241,21 @@ int getdef_num (const char *item, int dflt) def_load (); } - d = def_find (item); + d = def_find (item, NULL); if ((NULL == d) || (NULL == d->value)) { return dflt; } - if ( (getlong (d->value, &val) == 0) + if ( (str2sl(&val, d->value) == -1) || (val > INT_MAX) - || (val < INT_MIN)) { + || (val < -1)) { fprintf (shadow_logfd, _("configuration error - cannot parse %s value: '%s'"), item, d->value); return dflt; } - return (int) val; + return val; } @@ -272,12 +276,12 @@ unsigned int getdef_unum (const char *item, unsigned int dflt) def_load (); } - d = def_find (item); + d = def_find (item, NULL); if ((NULL == d) || (NULL == d->value)) { return dflt; } - if ( (getlong (d->value, &val) == 0) + if ( (str2sl(&val, d->value) == -1) || (val < 0) || (val > INT_MAX)) { fprintf (shadow_logfd, @@ -286,7 +290,7 @@ unsigned int getdef_unum (const char *item, unsigned int dflt) return dflt; } - return (unsigned int) val; + return val; } @@ -307,12 +311,12 @@ long getdef_long (const char *item, long dflt) def_load (); } - d = def_find (item); + d = def_find (item, NULL); if ((NULL == d) || (NULL == d->value)) { return dflt; } - if (getlong (d->value, &val) == 0) { + if (str2sl(&val, d->value) == -1 || val < -1) { fprintf (shadow_logfd, _("configuration error - cannot parse %s value: '%s'"), item, d->value); @@ -339,12 +343,12 @@ unsigned long getdef_ulong (const char *item, unsigned long dflt) def_load (); } - d = def_find (item); + d = def_find (item, NULL); if ((NULL == d) || (NULL == d->value)) { return dflt; } - if (getulong (d->value, &val) == 0) { + if (str2ul(&val, d->value) == -1) { fprintf (shadow_logfd, _("configuration error - cannot parse %s value: '%s'"), item, d->value); @@ -359,7 +363,7 @@ unsigned long getdef_ulong (const char *item, unsigned long dflt) * (also used when loading the initial defaults) */ -int putdef_str (const char *name, const char *value) +int putdef_str (const char *name, const char *value, const char *srcfile) { struct itemdef *d; char *cp; @@ -372,10 +376,9 @@ int putdef_str (const char *name, const char *value) * Locate the slot to save the value. If this parameter * is unknown then "def_find" will print an err message. */ - d = def_find (name); - if (NULL == d) { + d = def_find (name, srcfile); + if (NULL == d) return -1; - } /* * Save off the value. @@ -399,9 +402,12 @@ int putdef_str (const char *name, const char *value) * * Search through a table of configurable items to locate the * specified configuration option. + * + * If srcfile is not NULL, and the item is not found, then report an error saying + * the unknown item was used in this file. */ -static /*@observer@*/ /*@null@*/struct itemdef *def_find (const char *name) +static /*@observer@*/ /*@null@*/struct itemdef *def_find (const char *name, const char *srcfile) { struct itemdef *ptr; @@ -427,10 +433,11 @@ static /*@observer@*/ /*@null@*/struct itemdef *def_find (const char *name) fprintf (shadow_logfd, _("configuration error - unknown item '%s' (notify administrator)\n"), name); - SYSLOG ((LOG_CRIT, "unknown configuration item `%s'", name)); + if (srcfile != NULL) + SYSLOG ((LOG_CRIT, "shadow: unknown configuration item '%s' in '%s'", name, srcfile)); out: - return (struct itemdef *) NULL; + return NULL; } /* @@ -442,21 +449,12 @@ out: void setdef_config_file (const char* file) { #ifdef USE_ECONF - size_t len; - char* cp; - - len = strlen(file) + strlen(sysconfdir) + 2; - cp = malloc(len); - if (cp == NULL) - exit (13); - snprintf(cp, len, "%s/%s", file, sysconfdir); + char *cp; + + xasprintf(&cp, "%s/%s", file, sysconfdir); sysconfdir = cp; #ifdef VENDORDIR - len = strlen(file) + strlen(vendordir) + 2; - cp = malloc(len); - if (cp == NULL) - exit (13); - snprintf(cp, len, "%s/%s", file, vendordir); + xasprintf(&cp, "%s/%s", file, vendordir); vendordir = cp; #endif #else @@ -470,18 +468,13 @@ void setdef_config_file (const char* file) * Loads the user-configured options from the default configuration file */ +#ifdef USE_ECONF static void def_load (void) { -#ifdef USE_ECONF econf_file *defs_file = NULL; econf_err error; char **keys; size_t key_number; -#else - int i; - FILE *fp; - char buf[1024], *name, *value, *s; -#endif /* * Set the initialized flag. @@ -489,8 +482,6 @@ static void def_load (void) */ def_loaded = true; -#ifdef USE_ECONF - error = econf_readDirs (&defs_file, vendordir, sysconfdir, "login", "defs", " \t", "#"); if (error) { if (error == ECONF_NOFILE) @@ -510,7 +501,12 @@ static void def_load (void) for (size_t i = 0; i < key_number; i++) { char *value; - econf_getStringValue(defs_file, NULL, keys[i], &value); + error = econf_getStringValue(defs_file, NULL, keys[i], &value); + if (error) { + SYSLOG ((LOG_CRIT, "failed reading key %zu from econf [%s]", + i, econf_errString(error))); + exit (EXIT_FAILURE); + } /* * Store the value in def_table. @@ -519,12 +515,27 @@ static void def_load (void) * The error was already reported to the user and to * syslog. The tools will just use their default values. */ - (void)putdef_str (keys[i], value); + (void)putdef_str (keys[i], value, econf_getPath(defs_file)); + + free(value); } econf_free (keys); econf_free (defs_file); -#else +} +#else /* USE_ECONF */ +static void def_load (void) +{ + int i; + FILE *fp; + char buf[1024], *name, *value, *s; + + /* + * Set the initialized flag. + * (do it early to prevent recursion in putdef_str()) + */ + def_loaded = true; + /* * Open the configuration definitions file. */ @@ -542,12 +553,12 @@ static void def_load (void) /* * Go through all of the lines in the file. */ - while (fgets (buf, (int) sizeof (buf), fp) != NULL) { + while (fgets (buf, sizeof (buf), fp) != NULL) { /* * Trim trailing whitespace. */ - for (i = (int) strlen (buf) - 1; i >= 0; --i) { + for (i = (ptrdiff_t) strlen (buf) - 1; i >= 0; --i) { if (!isspace (buf[i])) { break; } @@ -577,7 +588,7 @@ static void def_load (void) * The error was already reported to the user and to * syslog. The tools will just use their default values. */ - (void)putdef_str (name, value); + (void)putdef_str (name, value, def_fname); } if (ferror (fp) != 0) { @@ -588,8 +599,8 @@ static void def_load (void) } (void) fclose (fp); -#endif } +#endif /* USE_ECONF */ #ifdef CKDEFS @@ -602,7 +613,7 @@ int main (int argc, char **argv) def_load (); for (i = 0; i < NUMDEFS; ++i) { - d = def_find (def_table[i].name); + d = def_find (def_table[i].name, NULL); if (NULL == d) { printf ("error - lookup '%s' failed\n", def_table[i].name); diff --git a/lib/getdef.h b/lib/getdef.h index 2bd3fc5..f55e28b 100644 --- a/lib/getdef.h +++ b/lib/getdef.h @@ -16,7 +16,7 @@ extern int getdef_num (const char *, int); extern unsigned long getdef_ulong (const char *, unsigned long); extern unsigned int getdef_unum (const char *, unsigned int); extern /*@observer@*/ /*@null@*/const char *getdef_str (const char *); -extern int putdef_str (const char *, const char *); +extern int putdef_str (const char *, const char *, const char *); extern void setdef_config_file (const char* file); /* default UMASK value if not specified in /etc/login.defs */ diff --git a/libmisc/getgr_nam_gid.c b/lib/getgr_nam_gid.c index 5294f50..fd0c217 100644 --- a/libmisc/getgr_nam_gid.c +++ b/lib/getgr_nam_gid.c @@ -23,20 +23,20 @@ */ extern /*@only@*//*@null@*/struct group *getgr_nam_gid (/*@null@*/const char *grname) { - long long int gid; - char *endptr; + char *end; + long long gid; if (NULL == grname) { return NULL; } errno = 0; - gid = strtoll (grname, &endptr, 10); + gid = strtoll(grname, &end, 10); if ( ('\0' != *grname) - && ('\0' == *endptr) - && (ERANGE != errno) + && ('\0' == *end) + && (0 == errno) && (/*@+longintegral@*/gid == (gid_t)gid)/*@=longintegral@*/) { - return xgetgrgid ((gid_t) gid); + return xgetgrgid (gid); } return xgetgrnam (grname); } diff --git a/lib/getlong.c b/lib/getlong.c deleted file mode 100644 index ec4aa54..0000000 --- a/lib/getlong.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * SPDX-FileCopyrightText: 2007 - 2009, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ident "$Id$" - -#include <stdlib.h> -#include <errno.h> -#include "prototypes.h" - -/* - * getlong - extract a long integer provided by the numstr string in *result - * - * It supports decimal, hexadecimal or octal representations. - * - * Returns 0 on failure, 1 on success. - */ -int getlong (const char *numstr, /*@out@*/long int *result) -{ - long val; - char *endptr; - - errno = 0; - val = strtol (numstr, &endptr, 0); - if (('\0' == *numstr) || ('\0' != *endptr) || (ERANGE == errno)) { - return 0; - } - - *result = val; - return 1; -} - diff --git a/lib/getrange.c b/lib/getrange.c new file mode 100644 index 0000000..466e908 --- /dev/null +++ b/lib/getrange.c @@ -0,0 +1,71 @@ +// SPDX-FileCopyrightText: 2008, Nicolas François +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#ident "$Id: $" + +#include <ctype.h> +#include <stdlib.h> + +#include "atoi/a2i.h" +#include "defines.h" +#include "prototypes.h" + + +/* + * Parse a range and indicate if the range is valid. + * Valid ranges are in the form: + * <long> -> min=max=long has_min has_max + * -<long> -> max=long !has_min has_max + * <long>- -> min=long has_min !has_max + * <long1>-<long2> -> min=long1 max=long2 has_min has_max + */ +int +getrange(const char *range, + unsigned long *min, bool *has_min, + unsigned long *max, bool *has_max) +{ + const char *end; + + if (NULL == range) + return -1; + + *min = 0; + *has_min = false; + *has_max = false; + + if ('-' == range[0]) { + end = range + 1; + goto parse_max; + } + + if (a2ul(min, range, &end, 10, 0, ULONG_MAX) == -1 && errno != ENOTSUP) + return -1; + *has_min = true; + + switch (*end++) { + case '\0': + *has_max = true; + *max = *min; + return 0; /* <long> */ + + case '-': + if ('\0' == *end) + return 0; /* <long>- */ +parse_max: + if (!isdigit((unsigned char) *end)) + return -1; + + if (a2ul(max, end, NULL, 10, *min, ULONG_MAX) == -1) + return -1; + *has_max = true; + + return 0; /* <long>-<long>, or -<long> */ + + default: + return -1; + } +} diff --git a/lib/gettime.c b/lib/gettime.c new file mode 100644 index 0000000..c61c88c --- /dev/null +++ b/lib/gettime.c @@ -0,0 +1,47 @@ +// SPDX-FileCopyrightText: 2017, Chris Lamb +// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#ident "$Id$" + +#include <errno.h> +#include <limits.h> +#include <stdio.h> + +#include "atoi/a2i.h" +#include "defines.h" +#include "prototypes.h" +#include "shadowlog.h" + + +/* + * gettime() returns the time as the number of seconds since the Epoch + * + * Like time(), gettime() returns the time as the number of seconds since the + * Epoch, 1970-01-01 00:00:00 +0000 (UTC), except that if the SOURCE_DATE_EPOCH + * environment variable is exported it will use that instead. + */ +/*@observer@*/time_t +gettime(void) +{ + char *source_date_epoch; + FILE *shadow_logfd = log_get_logfd(); + time_t fallback, epoch; + + fallback = time (NULL); + source_date_epoch = shadow_getenv ("SOURCE_DATE_EPOCH"); + + if (!source_date_epoch) + return fallback; + + if (a2i(time_t, &epoch, source_date_epoch, NULL, 10, 0, fallback) == -1) { + fprintf(shadow_logfd, + _("Environment variable $SOURCE_DATE_EPOCH: a2i(\"%s\"): %s"), + source_date_epoch, strerror(errno)); + return fallback; + } + return epoch; +} diff --git a/lib/getulong.c b/lib/getulong.c deleted file mode 100644 index 33250e3..0000000 --- a/lib/getulong.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * SPDX-FileCopyrightText: 2007 - 2009, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ident "$Id: getlong.c 2763 2009-04-23 09:57:03Z nekral-guest $" - -#include <stdlib.h> -#include <errno.h> -#include "prototypes.h" - -/* - * getulong - extract an unsigned long integer provided by the numstr string in *result - * - * It supports decimal, hexadecimal or octal representations. - * - * Returns 0 on failure, 1 on success. - */ -int getulong (const char *numstr, /*@out@*/unsigned long int *result) -{ - unsigned long int val; - char *endptr; - - errno = 0; - val = strtoul (numstr, &endptr, 0); - if ( ('\0' == *numstr) - || ('\0' != *endptr) - || (ERANGE == errno) - ) { - return 0; - } - - *result = val; - return 1; -} - diff --git a/lib/groupio.c b/lib/groupio.c index 357a30e..7b9d45f 100644 --- a/lib/groupio.c +++ b/lib/groupio.c @@ -15,12 +15,14 @@ #include <assert.h> #include <stdio.h> +#include "alloc.h" #include "prototypes.h" #include "defines.h" #include "commonio.h" #include "getdef.h" #include "groupio.h" + static /*@null@*/struct commonio_entry *merge_group_entries ( /*@null@*/ /*@returned@*/struct commonio_entry *gr1, /*@null@*/struct commonio_entry *gr2); @@ -34,7 +36,8 @@ static /*@null@*/ /*@only@*/void *group_dup (const void *ent) return __gr_dup (gr); } -static void group_free (/*@out@*/ /*@only@*/void *ent) +static void +group_free(/*@only@*/void *ent) { struct group *gr = ent; @@ -50,7 +53,7 @@ static const char *group_getname (const void *ent) static void *group_parse (const char *line) { - return (void *) sgetgrent (line); + return sgetgrent (line); } static int group_put (const void *ent, FILE * file) @@ -159,7 +162,7 @@ int gr_open (int mode) int gr_update (const struct group *gr) { - return commonio_update (&group_db, (const void *) gr); + return commonio_update (&group_db, gr); } int gr_remove (const char *name) @@ -209,17 +212,25 @@ void __gr_del_entry (const struct commonio_entry *ent) static int gr_cmp (const void *p1, const void *p2) { + const struct commonio_entry *const *ce1; + const struct commonio_entry *const *ce2; + const struct group *g1, *g2; gid_t u1, u2; - if ((*(struct commonio_entry **) p1)->eptr == NULL) { + ce1 = p1; + g1 = (*ce1)->eptr; + if (g1 == NULL) { return 1; } - if ((*(struct commonio_entry **) p2)->eptr == NULL) { + + ce2 = p2; + g2 = (*ce2)->eptr; + if (g2 == NULL) { return -1; } - u1 = ((struct group *) (*(struct commonio_entry **) p1)->eptr)->gr_gid; - u2 = ((struct group *) (*(struct commonio_entry **) p2)->eptr)->gr_gid; + u1 = g1->gr_gid; + u2 = g2->gr_gid; if (u1 < u2) { return -1; @@ -247,8 +258,8 @@ static int group_open_hook (void) for (gr1 = group_db.head; NULL != gr1; gr1 = gr1->next) { for (gr2 = gr1->next; NULL != gr2; gr2 = gr2->next) { - struct group *g1 = (struct group *)gr1->eptr; - struct group *g2 = (struct group *)gr2->eptr; + struct group *g1 = gr1->eptr; + struct group *g2 = gr2->eptr; if (NULL != g1 && NULL != g2 && 0 == strcmp (g1->gr_name, g2->gr_name) && @@ -291,32 +302,28 @@ static /*@null@*/struct commonio_entry *merge_group_entries ( /*@null@*/ /*@returned@*/struct commonio_entry *gr1, /*@null@*/struct commonio_entry *gr2) { - struct group *gptr1; - struct group *gptr2; - char **new_members; - size_t members = 0; - char *new_line; - size_t new_line_len, i; + char *new_line; + char **new_members; + size_t i; + size_t members = 0; + struct group *gptr1; + struct group *gptr2; + if (NULL == gr2 || NULL == gr1) { errno = EINVAL; return NULL; } - gptr1 = (struct group *)gr1->eptr; - gptr2 = (struct group *)gr2->eptr; + gptr1 = gr1->eptr; + gptr2 = gr2->eptr; if (NULL == gptr2 || NULL == gptr1) { errno = EINVAL; return NULL; } /* Concatenate the 2 lines */ - new_line_len = strlen (gr1->line) + strlen (gr2->line) +1; - new_line = (char *)malloc (new_line_len + 1); - if (NULL == new_line) { - errno = ENOMEM; + if (asprintf(&new_line, "%s\n%s", gr1->line, gr2->line) == -1) return NULL; - } - snprintf(new_line, new_line_len + 1, "%s\n%s", gr1->line, gr2->line); /* Concatenate the 2 list of members */ for (i=0; NULL != gptr1->gr_mem[i]; i++); @@ -333,10 +340,9 @@ static /*@null@*/struct commonio_entry *merge_group_entries ( members++; } } - new_members = (char **)calloc ( (members+1), sizeof(char*) ); + new_members = CALLOC (members + 1, char *); if (NULL == new_members) { - free (new_line); - errno = ENOMEM; + free(new_line); return NULL; } for (i=0; NULL != gptr1->gr_mem[i]; i++) { @@ -377,7 +383,7 @@ static int split_groups (unsigned int max_members) struct commonio_entry *gr; for (gr = group_db.head; NULL != gr; gr = gr->next) { - struct group *gptr = (struct group *)gr->eptr; + struct group *gptr = gr->eptr; struct commonio_entry *new; struct group *new_gptr; unsigned int members = 0; @@ -395,9 +401,8 @@ static int split_groups (unsigned int max_members) continue; } - new = (struct commonio_entry *) malloc (sizeof *new); + new = MALLOC(1, struct commonio_entry); if (NULL == new) { - errno = ENOMEM; return 0; } new->eptr = group_dup(gr->eptr); @@ -406,7 +411,7 @@ static int split_groups (unsigned int max_members) errno = ENOMEM; return 0; } - new_gptr = (struct group *)new->eptr; + new_gptr = new->eptr; new->line = NULL; new->changed = true; diff --git a/lib/groupmem.c b/lib/groupmem.c index c858b72..69d4435 100644 --- a/lib/groupmem.c +++ b/lib/groupmem.c @@ -12,6 +12,8 @@ #ident "$Id$" +#include "alloc.h" +#include "memzero.h" #include "prototypes.h" #include "defines.h" #include "groupio.h" @@ -21,12 +23,11 @@ struct group *gr; int i; - gr = (struct group *) malloc (sizeof *gr); + gr = CALLOC(1, struct group); if (NULL == gr) { return NULL; } /* The libc might define other fields. They won't be copied. */ - memset (gr, 0, sizeof *gr); gr->gr_gid = grent->gr_gid; /*@-mustfreeonly@*/ gr->gr_name = strdup (grent->gr_name); @@ -46,7 +47,7 @@ for (i = 0; grent->gr_mem[i]; i++); /*@-mustfreeonly@*/ - gr->gr_mem = (char **) malloc ((i + 1) * sizeof (char *)); + gr->gr_mem = MALLOC(i + 1, char *); /*@=mustfreeonly@*/ if (NULL == gr->gr_mem) { gr_free(gr); @@ -76,7 +77,8 @@ void gr_free_members (struct group *grent) } } -void gr_free (/*@out@*/ /*@only@*/struct group *grent) +void +gr_free(/*@only@*/struct group *grent) { free (grent->gr_name); if (NULL != grent->gr_passwd) { @@ -86,33 +88,3 @@ void gr_free (/*@out@*/ /*@only@*/struct group *grent) gr_free_members(grent); free (grent); } - -bool gr_append_member(struct group *grp, char *member) -{ - int i; - - if (NULL == grp->gr_mem || grp->gr_mem[0] == NULL) { - grp->gr_mem = (char **)malloc(2 * sizeof(char *)); - if (!grp->gr_mem) { - return false; - } - grp->gr_mem[0] = strdup(member); - if (!grp->gr_mem[0]) { - return false; - } - grp->gr_mem[1] = NULL; - return true; - } - - for (i = 0; grp->gr_mem[i]; i++) ; - grp->gr_mem = realloc(grp->gr_mem, (i + 2) * sizeof(char *)); - if (NULL == grp->gr_mem) { - return false; - } - grp->gr_mem[i] = strdup(member); - if (NULL == grp->gr_mem[i]) { - return false; - } - grp->gr_mem[i + 1] = NULL; - return true; -} diff --git a/lib/gshadow.c b/lib/gshadow.c index 2e12923..3c71bea 100644 --- a/lib/gshadow.c +++ b/lib/gshadow.c @@ -15,8 +15,12 @@ #ident "$Id$" #include <stdio.h> +#include <string.h> + +#include "alloc.h" #include "prototypes.h" #include "defines.h" + static /*@null@*/FILE *shadow; static /*@null@*//*@only@*/char **members = NULL; static size_t nmembers = 0; @@ -26,34 +30,6 @@ static struct sgrp sgroup; #define FIELDS 4 -#ifdef USE_NIS -static bool nis_used; -static bool nis_ignore; -static enum { native, start, middle, native2 } nis_state; -static bool nis_bound; -static char *nis_domain; -static char *nis_key; -static int nis_keylen; -static char *nis_val; -static int nis_vallen; - -#define IS_NISCHAR(c) ((c)=='+') -#endif - -#ifdef USE_NIS -/* - * bind_nis - bind to NIS server - */ - -static int bind_nis (void) -{ - if (yp_get_default_domain (&nis_domain)) - return -1; - - nis_bound = true; - return 0; -} -#endif static /*@null@*/char **build_list (char *s, char **list[], size_t * nlist) { @@ -62,21 +38,16 @@ static /*@null@*/char **build_list (char *s, char **list[], size_t * nlist) while (s != NULL && *s != '\0') { size = (nelem + 1) * sizeof (ptr); - ptr = realloc (*list, size); + ptr = REALLOC(*list, size, char *); if (NULL != ptr) { - ptr[nelem] = s; + ptr[nelem] = strsep(&s, ","); nelem++; *list = ptr; *nlist = nelem; - s = strchr (s, ','); - if (NULL != s) { - *s = '\0'; - s++; - } } } size = (nelem + 1) * sizeof (ptr); - ptr = realloc (*list, size); + ptr = REALLOC(*list, size, char *); if (NULL != ptr) { ptr[nelem] = NULL; *list = ptr; @@ -86,9 +57,6 @@ static /*@null@*/char **build_list (char *s, char **list[], size_t * nlist) void setsgent (void) { -#ifdef USE_NIS - nis_state = native; -#endif if (NULL != shadow) { rewind (shadow); } else { @@ -102,7 +70,7 @@ void endsgent (void) (void) fclose (shadow); } - shadow = (FILE *) 0; + shadow = NULL; } /*@observer@*//*@null@*/struct sgrp *sgetsgent (const char *string) @@ -116,7 +84,7 @@ void endsgent (void) size_t len = strlen (string) + 1; if (len > sgrbuflen) { - char *buf = (char *) realloc (sgrbuf, sizeof (char) * len); + char *buf = REALLOC(sgrbuf, len, char); if (NULL == buf) { return NULL; } @@ -124,8 +92,7 @@ void endsgent (void) sgrbuflen = len; } - strncpy (sgrbuf, string, len); - sgrbuf[len-1] = '\0'; + strcpy (sgrbuf, string); cp = strrchr (sgrbuf, '\n'); if (NULL != cp) { @@ -137,30 +104,16 @@ void endsgent (void) * all 4 of them and save the starting addresses in fields[]. */ - for (cp = sgrbuf, i = 0; (i < FIELDS) && (NULL != cp); i++) { - fields[i] = cp; - cp = strchr (cp, ':'); - if (NULL != cp) { - *cp++ = '\0'; - } - } + for (cp = sgrbuf, i = 0; (i < FIELDS) && (NULL != cp); i++) + fields[i] = strsep(&cp, ":"); /* * If there was an extra field somehow, or perhaps not enough, * the line is invalid. */ - if ((NULL != cp) || (i != FIELDS)) { -#ifdef USE_NIS - if (!IS_NISCHAR (fields[0][0])) { - return 0; - } else { - nis_used = true; - } -#else + if (NULL != cp || i != FIELDS) return 0; -#endif - } sgroup.sg_name = fields[0]; sgroup.sg_passwd = fields[1]; @@ -195,7 +148,7 @@ void endsgent (void) char *cp; if (0 == buflen) { - buf = (char *) malloc (BUFSIZ); + buf = MALLOC(BUFSIZ, char); if (NULL == buf) { return NULL; } @@ -206,17 +159,12 @@ void endsgent (void) return NULL; } -#ifdef USE_NIS - while (fgetsx (buf, (int) buflen, fp) == buf) -#else - if (fgetsx (buf, (int) buflen, fp) == buf) -#endif - { + if (fgetsx(buf, buflen, fp) == buf) { while ( ((cp = strrchr (buf, '\n')) == NULL) && (feof (fp) == 0)) { size_t len; - cp = (char *) realloc (buf, buflen*2); + cp = REALLOC(buf, buflen * 2, char); if (NULL == cp) { return NULL; } @@ -234,11 +182,6 @@ void endsgent (void) if (NULL != cp) { *cp = '\0'; } -#ifdef USE_NIS - if (nis_ignore && IS_NISCHAR (buf[0])) { - continue; - } -#endif return (sgetsgent (buf)); } return NULL; @@ -250,96 +193,10 @@ void endsgent (void) /*@observer@*//*@null@*/struct sgrp *getsgent (void) { -#ifdef USE_NIS - bool nis_1_group = false; - struct sgrp *val; -#endif if (NULL == shadow) { setsgent (); } - -#ifdef USE_NIS - again: - /* - * See if we are reading from the local file. - */ - - if (nis_state == native || nis_state == native2) { - - /* - * Get the next entry from the shadow group file. Return - * NULL right away if there is none. - */ - - val = fgetsgent (shadow); - if (NULL == val) { - return 0; - } - - /* - * If this entry began with a NIS escape character, we have - * to see if this is just a single group, or if the entire - * map is being asked for. - */ - - if (IS_NISCHAR (val->sg_name[0])) { - if ('\0' != val->sg_name[1]) { - nis_1_group = true; - } else { - nis_state = start; - } - } - - /* - * If this isn't a NIS group and this isn't an escape to go - * use a NIS map, it must be a regular local group. - */ - - if (!nis_1_group && (nis_state != start)) { - return val; - } - - /* - * If this is an escape to use an NIS map, switch over to - * that bunch of code. - */ - - if (nis_state == start) { - goto again; - } - - /* - * NEEDSWORK. Here we substitute pieces-parts of this entry. - */ - - return 0; - } else { - if (!nis_bound) { - if (bind_nis ()) { - nis_state = native2; - goto again; - } - } - if (nis_state == start) { - if (yp_first (nis_domain, "gshadow.byname", &nis_key, - &nis_keylen, &nis_val, &nis_vallen)) { - nis_state = native2; - goto again; - } - nis_state = middle; - } else if (nis_state == middle) { - if (yp_next (nis_domain, "gshadow.byname", nis_key, - nis_keylen, &nis_key, &nis_keylen, - &nis_val, &nis_vallen)) { - nis_state = native2; - goto again; - } - } - return sgetsgent (nis_val); - } -#else return (fgetsgent (shadow)); -#endif } /* @@ -350,63 +207,13 @@ void endsgent (void) { struct sgrp *sgrp; -#ifdef USE_NIS - static char save_name[16]; - int nis_disabled = 0; -#endif - setsgent (); -#ifdef USE_NIS - if (nis_used) { - again: - - /* - * Search the gshadow.byname map for this group. - */ - - if (!nis_bound) { - bind_nis (); - } - - if (nis_bound) { - char *cp; - - if (yp_match (nis_domain, "gshadow.byname", name, - strlen (name), &nis_val, - &nis_vallen) == 0) { - cp = strchr (nis_val, '\n'); - if (NULL != cp) { - *cp = '\0'; - } - - nis_state = middle; - sgrp = sgetsgent (nis_val); - if (NULL != sgrp) { - strcpy (save_name, sgrp->sg_name); - nis_key = save_name; - nis_keylen = strlen (save_name); - } - return sgrp; - } - } - nis_state = native2; - } -#endif -#ifdef USE_NIS - if (nis_used) { - nis_ignore = true; - nis_disabled = true; - } -#endif - while ((sgrp = getsgent ()) != (struct sgrp *) 0) { + while ((sgrp = getsgent ()) != NULL) { if (strcmp (name, sgrp->sg_name) == 0) { break; } } -#ifdef USE_NIS - nis_ignore = false; -#endif return sgrp; } @@ -437,7 +244,7 @@ int putsgent (const struct sgrp *sgrp, FILE * fp) size += strlen (sgrp->sg_mem[i]) + 1; } - buf = malloc (size); + buf = MALLOC(size, char); if (NULL == buf) { return -1; } @@ -502,5 +309,5 @@ int putsgent (const struct sgrp *sgrp, FILE * fp) return 0; } #else -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /*} SHADOWGRP */ diff --git a/libmisc/hushed.c b/lib/hushed.c index 84b2f55..86c224f 100644 --- a/libmisc/hushed.c +++ b/lib/hushed.c @@ -18,6 +18,9 @@ #include "defines.h" #include "prototypes.h" #include "getdef.h" +#include "string/sprintf.h" + + /* * hushed - determine if a user receives login messages * @@ -26,11 +29,11 @@ */ bool hushed (const char *username) { - struct passwd *pw; - const char *hushfile; - char buf[BUFSIZ]; - bool found; - FILE *fp; + bool found; + char buf[BUFSIZ]; + FILE *fp; + const char *hushfile; + struct passwd *pw; /* * Get the name of the file to use. If this option is not @@ -53,7 +56,7 @@ bool hushed (const char *username) */ if (hushfile[0] != '/') { - (void) snprintf (buf, sizeof (buf), "%s/%s", pw->pw_dir, hushfile); + SNPRINTF(buf, "%s/%s", pw->pw_dir, hushfile); return (access (buf, F_OK) == 0); } @@ -66,7 +69,7 @@ bool hushed (const char *username) if (NULL == fp) { return false; } - for (found = false; !found && (fgets (buf, (int) sizeof buf, fp) == buf);) { + for (found = false; !found && (fgets (buf, sizeof buf, fp) == buf);) { buf[strcspn (buf, "\n")] = '\0'; found = (strcmp (buf, pw->pw_shell) == 0) || (strcmp (buf, pw->pw_name) == 0); diff --git a/libmisc/idmapping.c b/lib/idmapping.c index 30eb89f..56c72ea 100644 --- a/libmisc/idmapping.c +++ b/lib/idmapping.c @@ -11,13 +11,20 @@ #include <limits.h> #include <stdlib.h> #include <stdio.h> +#include <strings.h> + +#include "alloc.h" +#include "atoi/str2i.h" #include "prototypes.h" +#include "string/stpeprintf.h" #include "idmapping.h" #if HAVE_SYS_CAPABILITY_H #include <sys/prctl.h> #include <sys/capability.h> #endif #include "shadowlog.h" +#include "sizeof.h" + struct map_range *get_map_ranges(int ranges, int argc, char **argv) { @@ -29,21 +36,12 @@ struct map_range *get_map_ranges(int ranges, int argc, char **argv) return NULL; } - if (ranges != ((argc + 2) / 3)) { + if (ranges * 3 != argc) { fprintf(log_get_logfd(), "%s: ranges: %u is wrong for argc: %d\n", log_get_progname(), ranges, argc); return NULL; } - if ((ranges * 3) > argc) { - fprintf(log_get_logfd(), "ranges: %u argc: %d\n", - ranges, argc); - fprintf(log_get_logfd(), - _( "%s: Not enough arguments to form %u mappings\n"), - log_get_progname(), ranges); - return NULL; - } - - mappings = calloc(ranges, sizeof(*mappings)); + mappings = CALLOC(ranges, struct map_range); if (!mappings) { fprintf(log_get_logfd(), _( "%s: Memory allocation failure\n"), log_get_progname()); @@ -53,15 +51,15 @@ struct map_range *get_map_ranges(int ranges, int argc, char **argv) /* Gather up the ranges from the command line */ mapping = mappings; for (idx = 0, argidx = 0; idx < ranges; idx++, argidx += 3, mapping++) { - if (!getulong(argv[argidx + 0], &mapping->upper)) { + if (str2ul(&mapping->upper, argv[argidx + 0]) == -1) { free(mappings); return NULL; } - if (!getulong(argv[argidx + 1], &mapping->lower)) { + if (str2ul(&mapping->lower, argv[argidx + 1]) == -1) { free(mappings); return NULL; } - if (!getulong(argv[argidx + 2], &mapping->count)) { + if (str2ul(&mapping->count, argv[argidx + 2]) == -1) { free(mappings); return NULL; } @@ -99,7 +97,7 @@ struct map_range *get_map_ranges(int ranges, int argc, char **argv) * 8bytes --> 21 ascii estimated -> 18446744073709551616 (20 real) * 16bytes --> 39 ascii estimated -> 340282366920938463463374607431768211456 (39 real) */ -#define ULONG_DIGITS ((((sizeof(unsigned long) * CHAR_BIT) + 9)/10)*3) +#define ULONG_DIGITS (((WIDTHOF(unsigned long) + 9)/10)*3) #if HAVE_SYS_CAPABILITY_H static inline bool maps_lower_root(int cap, int ranges, const struct map_range *mappings) @@ -141,7 +139,7 @@ void write_mapping(int proc_dir_fd, int ranges, const struct map_range *mappings int idx; const struct map_range *mapping; size_t bufsize; - char *buf, *pos; + char *buf, *pos, *end; int fd; #if HAVE_SYS_CAPABILITY_H @@ -172,7 +170,7 @@ void write_mapping(int proc_dir_fd, int ranges, const struct map_range *mappings } /* Lockdown new{g,u}idmap by dropping all unneeded capabilities. */ - memset(data, 0, sizeof(data)); + bzero(data, sizeof(data)); data[0].effective = CAP_TO_MASK(cap); /* * When uid 0 from the ancestor userns is supposed to be mapped into @@ -187,23 +185,22 @@ void write_mapping(int proc_dir_fd, int ranges, const struct map_range *mappings } #endif - bufsize = ranges * ((ULONG_DIGITS + 1) * 3); - pos = buf = xmalloc(bufsize); + bufsize = (ULONG_DIGITS + 1) * 3 * ranges + 1; + pos = buf = XMALLOC(bufsize, char); + end = buf + bufsize; /* Build the mapping command */ mapping = mappings; for (idx = 0; idx < ranges; idx++, mapping++) { /* Append this range to the string that will be written */ - int written = snprintf(pos, bufsize - (pos - buf), - "%lu %lu %lu\n", - mapping->upper, - mapping->lower, - mapping->count); - if ((written <= 0) || (written >= (bufsize - (pos - buf)))) { - fprintf(log_get_logfd(), _("%s: snprintf failed!\n"), log_get_progname()); - exit(EXIT_FAILURE); - } - pos += written; + pos = stpeprintf(pos, end, "%lu %lu %lu\n", + mapping->upper, + mapping->lower, + mapping->count); + } + if (pos == end || pos == NULL) { + fprintf(log_get_logfd(), _("%s: stpeprintf failed!\n"), log_get_progname()); + exit(EXIT_FAILURE); } /* Write the mapping to the mapping file */ @@ -213,11 +210,15 @@ void write_mapping(int proc_dir_fd, int ranges, const struct map_range *mappings log_get_progname(), map_file, strerror(errno)); exit(EXIT_FAILURE); } - if (write(fd, buf, pos - buf) != (pos - buf)) { + if (write_full(fd, buf, pos - buf) == -1) { fprintf(log_get_logfd(), _("%s: write to %s failed: %s\n"), log_get_progname(), map_file, strerror(errno)); exit(EXIT_FAILURE); } - close(fd); + if (close(fd) != 0 && errno != EINTR) { + fprintf(log_get_logfd(), _("%s: closing %s failed: %s\n"), + log_get_progname(), map_file, strerror(errno)); + exit(EXIT_FAILURE); + } free(buf); } diff --git a/libmisc/idmapping.h b/lib/idmapping.h index 46d4631..46d4631 100644 --- a/libmisc/idmapping.h +++ b/lib/idmapping.h diff --git a/libmisc/isexpired.c b/lib/isexpired.c index ff20396..c275691 100644 --- a/libmisc/isexpired.c +++ b/lib/isexpired.c @@ -15,11 +15,13 @@ #include <config.h> #include <sys/types.h> -#include "prototypes.h" -#include "defines.h" #include <pwd.h> #include <time.h> +#include "adds.h" +#include "defines.h" +#include "prototypes.h" + #ident "$Id$" @@ -38,9 +40,9 @@ */ int isexpired (const struct passwd *pw, /*@null@*/const struct spwd *sp) { - long now; + long now; - now = (long) time ((time_t *) 0) / SCALE; + now = time(NULL) / DAY; if (NULL == sp) { return 0; @@ -72,7 +74,8 @@ int isexpired (const struct passwd *pw, /*@null@*/const struct spwd *sp) if ( (sp->sp_lstchg > 0) && (sp->sp_max >= 0) && (sp->sp_inact >= 0) - && (now >= (sp->sp_lstchg + sp->sp_max + sp->sp_inact))) { + && (now >= addsl(sp->sp_lstchg, sp->sp_max, sp->sp_inact))) + { return 2; } @@ -84,7 +87,7 @@ int isexpired (const struct passwd *pw, /*@null@*/const struct spwd *sp) if ( (-1 == sp->sp_lstchg) || (-1 == sp->sp_max) - || (sp->sp_max >= ((10000L * DAY) / SCALE))) { + || (sp->sp_max >= 10000)) { return 0; } @@ -94,9 +97,9 @@ int isexpired (const struct passwd *pw, /*@null@*/const struct spwd *sp) * the password has expired. */ - if (now >= (sp->sp_lstchg + sp->sp_max)) { + if (now >= addsl(sp->sp_lstchg, sp->sp_max)) return 1; - } + return 0; } diff --git a/libmisc/limits.c b/lib/limits.c index fea85fe..813c082 100644 --- a/libmisc/limits.c +++ b/lib/limits.c @@ -28,11 +28,12 @@ #include <pwd.h> #include "getdef.h" #include "shadowlog.h" -#ifdef HAVE_SYS_RESOURCE_H #include <sys/resource.h> -#define LIMITS -#endif -#ifdef LIMITS + +#include "atoi/str2i.h" +#include "memzero.h" + + #ifndef LIMITS_FILE #define LIMITS_FILE "/etc/limits" #endif @@ -48,8 +49,10 @@ static int setrlimit_value (unsigned int resource, const char *value, unsigned int multiplier) { - struct rlimit rlim; - rlim_t limit; + char *end; + long l; + rlim_t limit; + struct rlimit rlim; /* The "-" is special, not belonging to a strange negative limit. * It is infinity, in a controlled way. @@ -58,23 +61,18 @@ static int setrlimit_value (unsigned int resource, limit = RLIM_INFINITY; } else { - /* We cannot use getlong here because it fails when there + /* We cannot use str2sl() here because it fails when there * is more to the value than just this number! * Also, we are limited to base 10 here (hex numbers will not * work with the limit string parser as is anyway) */ - char *endptr; - long longlimit = strtol (value, &endptr, 10); - if ((0 == longlimit) && (value == endptr)) { - /* No argument at all. No-op. - * FIXME: We could instead throw an error, though. - */ - return 0; - } - longlimit *= multiplier; - limit = (rlim_t)longlimit; - if (longlimit != limit) - { + errno = 0; + l = strtol(value, &end, 10); + + if (value == end || errno != 0) + return 0; // FIXME: We could instead throw an error, though. + + if (__builtin_mul_overflow(l, multiplier, &limit)) { /* FIXME: Again, silent error handling... * Wouldn't screaming make more sense? */ @@ -95,11 +93,11 @@ static int set_prio (const char *value) { long prio; - if ( (getlong (value, &prio) == 0) + if ( (str2sl(&prio, value) == -1) || (prio != (int) prio)) { return 0; } - if (setpriority (PRIO_PROCESS, 0, (int) prio) != 0) { + if (setpriority (PRIO_PROCESS, 0, prio) != 0) { return LOGIN_ERROR_RLIMIT; } return 0; @@ -108,14 +106,14 @@ static int set_prio (const char *value) static int set_umask (const char *value) { - unsigned long int mask; + unsigned long mask; - if ( (getulong (value, &mask) == 0) + if ( (str2ul(&mask, value) == -1) || (mask != (mode_t) mask)) { return 0; } - (void) umask ((mode_t) mask); + (void) umask (mask); return 0; } @@ -123,14 +121,9 @@ static int set_umask (const char *value) /* Counts the number of user logins and check against the limit */ static int check_logins (const char *name, const char *maxlogins) { -#ifdef USE_UTMPX - struct utmpx *ut; -#else /* !USE_UTMPX */ - struct utmp *ut; -#endif /* !USE_UTMPX */ unsigned long limit, count; - if (getulong (maxlogins, &limit) == 0) { + if (str2ul(&limit, maxlogins) == -1) { return 0; } @@ -139,38 +132,8 @@ static int check_logins (const char *name, const char *maxlogins) return LOGIN_ERROR_LOGIN; } - count = 0; -#ifdef USE_UTMPX - setutxent (); - while ((ut = getutxent ())) -#else /* !USE_UTMPX */ - setutent (); - while ((ut = getutent ())) -#endif /* !USE_UTMPX */ - { - if (USER_PROCESS != ut->ut_type) { - continue; - } - if ('\0' == ut->ut_user[0]) { - continue; - } - if (strncmp (name, ut->ut_user, sizeof (ut->ut_user)) != 0) { - continue; - } - count++; - if (count > limit) { - break; - } - } -#ifdef USE_UTMPX - endutxent (); -#else /* !USE_UTMPX */ - endutent (); -#endif /* !USE_UTMPX */ - /* - * This is called after setutmp(), so the number of logins counted - * includes the user who is currently trying to log in. - */ + count = active_sessions_count(name, limit); + if (count > limit) { SYSLOG ((LOG_WARN, "Too many logins (max %lu) for %s\n", @@ -243,34 +206,26 @@ static int do_user_limits (const char *buf, const char *name) while ('\0' != *pp) { switch (*pp++) { -#ifdef RLIMIT_AS case 'a': case 'A': /* RLIMIT_AS - max address space (KB) */ retval |= setrlimit_value (RLIMIT_AS, pp, 1024); break; -#endif -#ifdef RLIMIT_CORE case 'c': case 'C': /* RLIMIT_CORE - max core file size (KB) */ retval |= setrlimit_value (RLIMIT_CORE, pp, 1024); break; -#endif -#ifdef RLIMIT_DATA case 'd': case 'D': /* RLIMIT_DATA - max data size (KB) */ retval |= setrlimit_value (RLIMIT_DATA, pp, 1024); break; -#endif -#ifdef RLIMIT_FSIZE case 'f': case 'F': /* RLIMIT_FSIZE - Maximum filesize (KB) */ retval |= setrlimit_value (RLIMIT_FSIZE, pp, 1024); break; -#endif #ifdef RLIMIT_NICE case 'i': case 'I': @@ -294,13 +249,11 @@ static int do_user_limits (const char *buf, const char *name) retval |= setrlimit_value (RLIMIT_MEMLOCK, pp, 1024); break; #endif -#ifdef RLIMIT_NOFILE case 'n': case 'N': /* RLIMIT_NOFILE - max number of open files */ retval |= setrlimit_value (RLIMIT_NOFILE, pp, 1); break; -#endif #ifdef RLIMIT_RTPRIO case 'o': case 'O': @@ -319,20 +272,16 @@ static int do_user_limits (const char *buf, const char *name) retval |= setrlimit_value (RLIMIT_RSS, pp, 1024); break; #endif -#ifdef RLIMIT_STACK case 's': case 'S': /* RLIMIT_STACK - max stack size (KB) */ retval |= setrlimit_value (RLIMIT_STACK, pp, 1024); break; -#endif -#ifdef RLIMIT_CPU case 't': case 'T': /* RLIMIT_CPU - max CPU time (MIN) */ retval |= setrlimit_value (RLIMIT_CPU, pp, 60); break; -#endif #ifdef RLIMIT_NPROC case 'u': case 'U': @@ -409,11 +358,11 @@ static int setup_user_limits (const char *uname) char tempbuf[1024]; /* init things */ - memzero (buf, sizeof (buf)); - memzero (name, sizeof (name)); - memzero (limits, sizeof (limits)); - memzero (deflimits, sizeof (deflimits)); - memzero (tempbuf, sizeof (tempbuf)); + MEMZERO(buf); + MEMZERO(name); + MEMZERO(limits); + MEMZERO(deflimits); + MEMZERO(tempbuf); /* start the checks */ fil = fopen (LIMITS_FILE, "r"); @@ -430,7 +379,7 @@ static int setup_user_limits (const char *uname) if (('#' == buf[0]) || ('\n' == buf[0])) { continue; } - memzero (tempbuf, sizeof (tempbuf)); + MEMZERO(tempbuf); /* a valid line should have a username, then spaces, * then limits * we allow the format: @@ -479,7 +428,6 @@ static int setup_user_limits (const char *uname) } return do_user_limits (limits, uname); } -#endif /* LIMITS */ static void setup_usergroups (const struct passwd *info) @@ -523,7 +471,6 @@ void setup_limits (const struct passwd *info) */ if (getdef_bool ("QUOTAS_ENAB")) { -#ifdef LIMITS if (info->pw_uid != 0) { if ((setup_user_limits (info->pw_name) & LOGIN_ERROR_LOGIN) != 0) { (void) fputs (_("Too many logins.\n"), log_get_logfd()); @@ -531,18 +478,18 @@ void setup_limits (const struct passwd *info) exit (EXIT_FAILURE); } } -#endif for (cp = info->pw_gecos; cp != NULL; cp = strchr (cp, ',')) { if (',' == *cp) { cp++; } if (strncmp (cp, "pri=", 4) == 0) { - long int inc; - if ( (getlong (cp + 4, &inc) == 1) + long inc; + + if ( (str2sl(&inc, cp + 4) == 0) && (inc >= -20) && (inc <= 20)) { errno = 0; - if ( (nice ((int) inc) != -1) + if ( (nice (inc) != -1) || (0 != errno)) { continue; } @@ -556,10 +503,10 @@ void setup_limits (const struct passwd *info) continue; } if (strncmp (cp, "ulimit=", 7) == 0) { - long int blocks; - if ( (getlong (cp + 7, &blocks) == 0) + long blocks; + if ( (str2sl(&blocks, cp + 7) == -1) || (blocks != (int) blocks) - || (set_filesize_limit ((int) blocks) != 0)) { + || (set_filesize_limit (blocks) != 0)) { SYSLOG ((LOG_WARN, "Can't set the ulimit for user %s", info->pw_name)); @@ -567,14 +514,15 @@ void setup_limits (const struct passwd *info) continue; } if (strncmp (cp, "umask=", 6) == 0) { - unsigned long int mask; - if ( (getulong (cp + 6, &mask) == 0) + unsigned long mask; + + if ( (str2ul(&mask, cp + 6) == -1) || (mask != (mode_t) mask)) { SYSLOG ((LOG_WARN, "Can't set umask value for user %s", info->pw_name)); } else { - (void) umask ((mode_t) mask); + (void) umask (mask); } continue; @@ -584,6 +532,6 @@ void setup_limits (const struct passwd *info) } #else /* !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !USE_PAM */ diff --git a/libmisc/list.c b/lib/list.c index 9d7ec77..9fc6608 100644 --- a/libmisc/list.c +++ b/lib/list.c @@ -11,6 +11,8 @@ #ident "$Id$" #include <assert.h> + +#include "alloc.h" #include "prototypes.h" #include "defines.h" /* @@ -20,7 +22,8 @@ * name, and if not present it is added to a freshly allocated * list of users. */ -/*@only@*/ /*@out@*/char **add_list (/*@returned@*/ /*@only@*/char **list, const char *member) +/*@only@*/char ** +add_list(/*@returned@*/ /*@only@*/char **list, const char *member) { int i; char **tmp; @@ -33,7 +36,7 @@ * pointer if it is present. */ - for (i = 0; list[i] != (char *) 0; i++) { + for (i = 0; list[i] != NULL; i++) { if (strcmp (list[i], member) == 0) { return list; } @@ -44,7 +47,7 @@ * old entries, and the new entries as well. */ - tmp = (char **) xmalloc ((i + 2) * sizeof member); + tmp = XMALLOC(i + 2, char *); /* * Copy the original list to the new list, then append the @@ -52,12 +55,12 @@ * is returned to the invoker. */ - for (i = 0; list[i] != (char *) 0; i++) { + for (i = 0; list[i] != NULL; i++) { tmp[i] = list[i]; } tmp[i] = xstrdup (member); - tmp[i+1] = (char *) 0; + tmp[i+1] = NULL; return tmp; } @@ -70,7 +73,8 @@ * list of users. */ -/*@only@*/ /*@out@*/char **del_list (/*@returned@*/ /*@only@*/char **list, const char *member) +/*@only@*/char ** +del_list(/*@returned@*/ /*@only@*/char **list, const char *member) { int i, j; char **tmp; @@ -83,7 +87,7 @@ * pointer if it is not present. */ - for (i = j = 0; list[i] != (char *) 0; i++) { + for (i = j = 0; list[i] != NULL; i++) { if (strcmp (list[i], member) != 0) { j++; } @@ -98,7 +102,7 @@ * old entries. */ - tmp = (char **) xmalloc ((j + 1) * sizeof member); + tmp = XMALLOC(j + 1, char *); /* * Copy the original list except the deleted members to the @@ -106,14 +110,14 @@ * is returned to the invoker. */ - for (i = j = 0; list[i] != (char *) 0; i++) { + for (i = j = 0; list[i] != NULL; i++) { if (strcmp (list[i], member) != 0) { tmp[j] = list[i]; j++; } } - tmp[j] = (char *) 0; + tmp[j] = NULL; return tmp; } @@ -124,7 +128,8 @@ * function with list of members, the list elements are not enforced to be * constant strings here. */ -/*@only@*/ /*@out@*/char **dup_list (char *const *list) +/*@only@*/char ** +dup_list(char *const *list) { int i; char **tmp; @@ -133,7 +138,7 @@ for (i = 0; NULL != list[i]; i++); - tmp = (char **) xmalloc ((i + 1) * sizeof (char *)); + tmp = XMALLOC(i + 1, char *); i = 0; while (NULL != *list) { @@ -142,7 +147,7 @@ list++; } - tmp[i] = (char *) 0; + tmp[i] = NULL; return tmp; } @@ -210,14 +215,14 @@ bool is_on_list (char *const *list, const char *member) * Allocate the array we're going to store the pointers into. */ - array = (char **) xmalloc (sizeof (char *) * i); + array = XMALLOC(i, char *); /* * Empty list is special - 0 members, not 1 empty member. --marekm */ if ('\0' == *members) { - *array = (char *) 0; + *array = NULL; free (members); return array; } @@ -227,18 +232,9 @@ bool is_on_list (char *const *list, const char *member) * array of pointers. */ - for (cp = members, i = 0;; i++) { - array[i] = cp; - cp2 = strchr (cp, ','); - if (NULL != cp2) { - *cp2 = '\0'; - cp2++; - cp = cp2; - } else { - array[i + 1] = (char *) 0; - break; - } - } + for (cp = members, i = 0; cp != NULL; i++) + array[i] = strsep(&cp, ","); + array[i] = NULL; /* * Return the new array of pointers diff --git a/lib/lockpw.c b/lib/lockpw.c index aaa317f..15e7c8f 100644 --- a/lib/lockpw.c +++ b/lib/lockpw.c @@ -81,5 +81,5 @@ int ulckpwdf (void) return (pw_unlock () && spw_unlock ())? 0 : -1; } #else -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif diff --git a/libmisc/log.c b/lib/log.c index a220be0..9f54d45 100644 --- a/libmisc/log.c +++ b/lib/log.c @@ -17,14 +17,18 @@ #include <time.h> #include "defines.h" #include <lastlog.h> +#include "memzero.h" #include "prototypes.h" +#include "string/strncpy.h" +#include "string/strtcpy.h" + /* * dolastlog - create lastlog entry * * A "last login" entry is created for the user being logged in. The * UID is extracted from the global (struct passwd) entry and the - * TTY information is gotten from the (struct utmp). + * TTY information is gotten from the (struct utmpx). */ void dolastlog ( struct lastlog *ll, @@ -67,7 +71,7 @@ void dolastlog ( * the way we read the old one in. */ - if (read (fd, (void *) &newlog, sizeof newlog) != (ssize_t) sizeof newlog) { + if (read (fd, &newlog, sizeof newlog) != (ssize_t) sizeof newlog) { memzero (&newlog, sizeof newlog); } if (NULL != ll) { @@ -77,17 +81,29 @@ void dolastlog ( ll_time = newlog.ll_time; (void) time (&ll_time); newlog.ll_time = ll_time; - strncpy (newlog.ll_line, line, sizeof (newlog.ll_line) - 1); + STRTCPY(newlog.ll_line, line); #if HAVE_LL_HOST - strncpy (newlog.ll_host, host, sizeof (newlog.ll_host) - 1); + STRNCPY(newlog.ll_host, host); #endif if ( (lseek (fd, offset, SEEK_SET) != offset) - || (write (fd, (const void *) &newlog, sizeof newlog) != (ssize_t) sizeof newlog) - || (close (fd) != 0)) { - SYSLOG ((LOG_WARN, - "Can't write lastlog entry for UID %lu in %s.", - (unsigned long) pw->pw_uid, LASTLOG_FILE)); + || (write_full(fd, &newlog, sizeof newlog) == -1)) { + goto err_write; + } + + if (close (fd) != 0 && errno != EINTR) { + goto err_close; + } + + return; + +err_write: + { + int saved_errno = errno; (void) close (fd); + errno = saved_errno; } +err_close: + SYSLOG ((LOG_WARN, + "Can't write lastlog entry for UID %lu in %s: %m", + (unsigned long) pw->pw_uid, LASTLOG_FILE)); } - diff --git a/lib/logind.c b/lib/logind.c new file mode 100644 index 0000000..ba7278f --- /dev/null +++ b/lib/logind.c @@ -0,0 +1,52 @@ +/* + * SPDX-FileCopyrightText: 2023, Iker Pedrosa <ipedrosa@redhat.com> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#ident "$Id$" + +#include "attr.h" +#include "defines.h" +#include "prototypes.h" + +#include <systemd/sd-login.h> + +int get_session_host (char **out) +{ + char *host = NULL; + char *session = NULL; + int ret; + + ret = sd_pid_get_session (getpid(), &session); + if (ret < 0) { + return ret; + } + ret = sd_session_get_remote_host (session, &host); + if (ret < 0) { + goto done; + } + + *out = host; + +done: + free (session); + return ret; +} + +unsigned long active_sessions_count(const char *name, MAYBE_UNUSED unsigned long limit) +{ + struct passwd *pw; + unsigned long count = 0; + + pw = prefix_getpwnam(name); + if (pw == NULL) { + return 0; + } + + count = sd_uid_get_sessions(pw->pw_uid, 0, NULL); + + return count; +} diff --git a/lib/loginprompt.c b/lib/loginprompt.c new file mode 100644 index 0000000..9b2aa25 --- /dev/null +++ b/lib/loginprompt.c @@ -0,0 +1,111 @@ +/* + * SPDX-FileCopyrightText: 1989 - 1993, Julianne Frances Haugh + * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz + * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko + * SPDX-FileCopyrightText: 2008 - 2011, Nicolas François + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#ident "$Id$" + +#include <assert.h> +#include <stdio.h> +#include <signal.h> + +#include "alloc.h" +#include "attr.h" +#include "memzero.h" +#include "prototypes.h" +#include "defines.h" +#include "getdef.h" + +static void login_exit (MAYBE_UNUSED int sig) +{ + _exit (EXIT_FAILURE); +} + +/* + * login_prompt - prompt the user for their login name + * + * login_prompt() displays the standard login prompt. If ISSUE_FILE + * is set in login.defs, this file is displayed before the prompt. + */ + +void login_prompt (char *name, int namesize) +{ + char buf[1024]; + + char *cp; + int i; + FILE *fp; + const char *fname = getdef_str ("ISSUE_FILE"); + + sighandler_t sigquit; + sighandler_t sigtstp; + + /* + * There is a small chance that a QUIT character will be part of + * some random noise during a prompt. Deal with this by exiting + * instead of core dumping. Do the same thing for SIGTSTP. + */ + + sigquit = signal (SIGQUIT, login_exit); + sigtstp = signal (SIGTSTP, login_exit); + + /* + * See if the user has configured the issue file to + * be displayed and display it before the prompt. + */ + + if (NULL != fname) { + fp = fopen (fname, "r"); + if (NULL != fp) { + while ((i = getc (fp)) != EOF) { + (void) putc (i, stdout); + } + + (void) fclose (fp); + } + } + (void) gethostname (buf, sizeof buf); + printf (_("\n%s login: "), buf); + (void) fflush (stdout); + + /* + * Read the user's response. The trailing newline will be + * removed. + */ + + MEMZERO(buf); + if (fgets (buf, sizeof buf, stdin) != buf) { + exit (EXIT_FAILURE); + } + + cp = strchr (buf, '\n'); + if (NULL == cp) { + exit (EXIT_FAILURE); + } + *cp = '\0'; /* remove \n [ must be there ] */ + + /* + * Skip leading whitespace. This makes " username" work right. + * Then copy the rest (up to the end) into the username. + */ + + for (cp = buf; *cp == ' ' || *cp == '\t'; cp++); + + for (i = 0; i < namesize - 1 && *cp != '\0'; name[i++] = *cp++); + + name[i] = '\0'; + + /* + * Set the SIGQUIT handler back to its original value + */ + + (void) signal (SIGQUIT, sigquit); + (void) signal (SIGTSTP, sigtstp); +} + diff --git a/libmisc/mail.c b/lib/mail.c index 647f879..d14bdb1 100644 --- a/libmisc/mail.c +++ b/lib/mail.c @@ -15,7 +15,9 @@ #include <stdio.h> #include <string.h> +#include "alloc.h" #include "getdef.h" +#include "string/sprintf.h" #ident "$Id$" @@ -34,22 +36,18 @@ void mailcheck (void) */ mailbox = getenv ("MAILDIR"); if (NULL != mailbox) { - char *newmail; - size_t len = strlen (mailbox) + 5; - int wlen; + char *newmail; - newmail = xmalloc (len); - wlen = snprintf (newmail, len, "%s/new", mailbox); - assert (wlen == (int) len - 1); + xasprintf(&newmail, "%s/new", mailbox); if (stat (newmail, &statbuf) != -1 && statbuf.st_size != 0) { if (statbuf.st_mtime > statbuf.st_atime) { - free (newmail); + free(newmail); (void) puts (_("You have new mail.")); return; } } - free (newmail); + free(newmail); } mailbox = getenv ("MAIL"); diff --git a/lib/memzero.c b/lib/memzero.c new file mode 100644 index 0000000..8979e5f --- /dev/null +++ b/lib/memzero.c @@ -0,0 +1,17 @@ +/* + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#ident "$Id$" + +#include <stddef.h> + +#include "memzero.h" + + +extern inline void memzero(void *ptr, size_t size); +extern inline void strzero(char *s); diff --git a/lib/memzero.h b/lib/memzero.h new file mode 100644 index 0000000..1137e83 --- /dev/null +++ b/lib/memzero.h @@ -0,0 +1,49 @@ +/* + * SPDX-FileCopyrightText: 2022-2023, Christian Göttsche <cgzones@googlemail.com> + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIBMISC_MEMZERO_H_ +#define SHADOW_INCLUDE_LIBMISC_MEMZERO_H_ + + +#include <config.h> + +#include <stddef.h> +#include <string.h> +#include <strings.h> + +#include "sizeof.h" + + +#define MEMZERO(arr) memzero(arr, SIZEOF_ARRAY(arr)) + + +inline void memzero(void *ptr, size_t size); +inline void strzero(char *s); + + +inline void +memzero(void *ptr, size_t size) +{ +#if defined(HAVE_MEMSET_EXPLICIT) + memset_explicit(ptr, 0, size); +#elif defined(HAVE_EXPLICIT_BZERO) + explicit_bzero(ptr, size); +#else + bzero(ptr, size); + __asm__ __volatile__ ("" : : "r"(ptr) : "memory"); +#endif +} + + +inline void +strzero(char *s) +{ + memzero(s, strlen(s)); +} + + +#endif // include guard diff --git a/libmisc/motd.c b/lib/motd.c index 7f7e523..d1d5bf6 100644 --- a/libmisc/motd.c +++ b/lib/motd.c @@ -12,9 +12,11 @@ #ident "$Id$" #include <stdio.h> -#include "prototypes.h" + +#include "alloc.h" #include "defines.h" #include "getdef.h" +#include "prototypes.h" /* * motd -- output the /etc/motd file * diff --git a/lib/must_be.h b/lib/must_be.h new file mode 100644 index 0000000..a7365cb --- /dev/null +++ b/lib/must_be.h @@ -0,0 +1,99 @@ +/* + * SPDX-FileCopyrightText: 2019-2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIBMISC_MUST_BE_H_ +#define SHADOW_INCLUDE_LIBMISC_MUST_BE_H_ + + +#include <config.h> + +#include <assert.h> + + +/* + * SYNOPSIS + * int must_be(bool e); + * + * ARGUMENTS + * e Expression to be asserted. + * + * DESCRIPTION + * This macro fails compilation if 'e' is false. If 'e' is true, + * it returns (int) 0, so it doesn't affect the expression in which + * it is contained. + * + * This macro is similar to static_assert(3). While + * static_assert(3) can only be used where a statement is allowed, + * this must_be() macro can be used wherever an expression is + * allowed. + * + * RETURN VALUE + * 0 + * + * ERRORS + * If 'e' is false, the compilation will fail, as when using + * static_assert(3). + * + * EXAMPLES + * #define must_be_array(a) must_be(is_array(a)) + * + * #define NITEMS(a) (sizeof(a) / sizeof(*(a)) + must_be_array(a)) + * + * int foo[42]; + * int bar[NITEMS(foo)]; + */ + + +#define must_be(e) \ +( \ + 0 * (int) sizeof( \ + struct { \ + static_assert(e, ""); \ + int ISO_C_forbids_a_struct_with_no_members_; \ + } \ + ) \ +) + + +/* + * SYNOPSIS + * int must_be_array(a); + * + * ARGUMENTS + * a Array. + * + * DESCRIPTION + * This macro fails compilation if 'a' is not an array. It is + * useful in macros that accept an array as a parameter, where this + * macro can validate the macro argument. It prevent passing a + * pointer to such macros, which would otherwise produce silent + * bugs. + * + * RETURN VALUE + * 0 + * + * ERRORS + * If 'a' is not an array, the compilation will fail. + * + * EXAMPLES + * int a[10]; + * int *p; + * + * must_be_array(a); // Ok + * must_be_array(p); // Compile-time error + * + * SEE ALSO + * must_be() + */ + + +#define is_same_type(a, b) __builtin_types_compatible_p(a, b) +#define is_same_typeof(a, b) is_same_type(typeof(a), typeof(b)) +#define is_array(a) (!is_same_typeof((a), &(a)[0])) +#define must_be_array(a) must_be(is_array(a)) + + +#endif // include guard diff --git a/libmisc/myname.c b/lib/myname.c index 1b02617..1b02617 100644 --- a/libmisc/myname.c +++ b/lib/myname.c @@ -53,6 +53,6 @@ int nscd_flush_cache (const char *service) return 0; } #else /* USE_NSCD */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* USE_NSCD */ @@ -1,3 +1,5 @@ +#include <config.h> + #include <stdio.h> #include <stdlib.h> #include <dlfcn.h> @@ -6,10 +8,14 @@ #include <strings.h> #include <ctype.h> #include <stdatomic.h> + +#include "alloc.h" #include "prototypes.h" #include "../libsubid/subid.h" #include "shadowlog_internal.h" #include "shadowlog.h" +#include "string/sprintf.h" + #define NSSWITCH "/etc/nsswitch.conf" @@ -40,10 +46,12 @@ static void nss_exit(void) { // nsswitch_path is an argument only to support testing. void nss_init(const char *nsswitch_path) { - FILE *nssfp = NULL; - char *line = NULL, *p, *token, *saveptr; - size_t len = 0; - FILE *shadow_logfd = log_get_logfd(); + char *line = NULL, *p, *token, *saveptr; + char libname[64]; + FILE *nssfp = NULL; + FILE *shadow_logfd = log_get_logfd(); + void *h; + size_t len = 0; if (atomic_flag_test_and_set(&nss_init_started)) { // Another thread has started nss_init, wait for it to complete @@ -59,82 +67,78 @@ void nss_init(const char *nsswitch_path) { // subid: files nssfp = fopen(nsswitch_path, "r"); if (!nssfp) { + if (errno != ENOENT) + fprintf(shadow_logfd, "Failed opening %s: %m\n", nsswitch_path); + atomic_store(&nss_init_completed, true); return; } - while ((getline(&line, &len, nssfp)) != -1) { - if (line[0] == '\0' || line[0] == '#') + p = NULL; + while (getline(&line, &len, nssfp) != -1) { + if (line[0] == '#') continue; if (strlen(line) < 8) continue; if (strncasecmp(line, "subid:", 6) != 0) continue; p = &line[6]; - while ((*p) && isspace(*p)) + while (isspace(*p)) p++; - if (!*p) - continue; - for (token = strtok_r(p, " \n\t", &saveptr); - token; - token = strtok_r(NULL, " \n\t", &saveptr)) { - char libname[65]; - void *h; - if (strcmp(token, "files") == 0) { - subid_nss = NULL; - goto done; - } - if (strlen(token) > 50) { - fprintf(shadow_logfd, "Subid NSS module name too long (longer than 50 characters): %s\n", token); - fprintf(shadow_logfd, "Using files\n"); - subid_nss = NULL; - goto done; - } - snprintf(libname, 64, "libsubid_%s.so", token); - h = dlopen(libname, RTLD_LAZY); - if (!h) { - fprintf(shadow_logfd, "Error opening %s: %s\n", libname, dlerror()); - fprintf(shadow_logfd, "Using files\n"); - subid_nss = NULL; - goto done; - } - subid_nss = malloc(sizeof(*subid_nss)); - if (!subid_nss) { - dlclose(h); - goto done; - } - subid_nss->has_range = dlsym(h, "shadow_subid_has_range"); - if (!subid_nss->has_range) { - fprintf(shadow_logfd, "%s did not provide @has_range@\n", libname); - dlclose(h); - free(subid_nss); - subid_nss = NULL; - goto done; - } - subid_nss->list_owner_ranges = dlsym(h, "shadow_subid_list_owner_ranges"); - if (!subid_nss->list_owner_ranges) { - fprintf(shadow_logfd, "%s did not provide @list_owner_ranges@\n", libname); - dlclose(h); - free(subid_nss); - subid_nss = NULL; - goto done; - } - subid_nss->find_subid_owners = dlsym(h, "shadow_subid_find_subid_owners"); - if (!subid_nss->find_subid_owners) { - fprintf(shadow_logfd, "%s did not provide @find_subid_owners@\n", libname); - dlclose(h); - free(subid_nss); - subid_nss = NULL; - goto done; - } - subid_nss->handle = h; - goto done; - } + if (*p != '\0') + break; + p = NULL; + } + if (p == NULL) { + goto null_subid; + } + token = strtok_r(p, " \n\t", &saveptr); + if (token == NULL) { fprintf(shadow_logfd, "No usable subid NSS module found, using files\n"); // subid_nss has to be null here, but to ease reviews: - free(subid_nss); - subid_nss = NULL; - goto done; + goto null_subid; } + if (strcmp(token, "files") == 0) { + goto null_subid; + } + if (strlen(token) > 50) { + fprintf(shadow_logfd, "Subid NSS module name too long (longer than 50 characters): %s\n", token); + fprintf(shadow_logfd, "Using files\n"); + goto null_subid; + } + SNPRINTF(libname, "libsubid_%s.so", token); + h = dlopen(libname, RTLD_LAZY); + if (!h) { + fprintf(shadow_logfd, "Error opening %s: %s\n", libname, dlerror()); + fprintf(shadow_logfd, "Using files\n"); + goto null_subid; + } + subid_nss = MALLOC(1, struct subid_nss_ops); + if (!subid_nss) { + goto close_lib; + } + subid_nss->has_range = dlsym(h, "shadow_subid_has_range"); + if (!subid_nss->has_range) { + fprintf(shadow_logfd, "%s did not provide @has_range@\n", libname); + goto close_lib; + } + subid_nss->list_owner_ranges = dlsym(h, "shadow_subid_list_owner_ranges"); + if (!subid_nss->list_owner_ranges) { + fprintf(shadow_logfd, "%s did not provide @list_owner_ranges@\n", libname); + goto close_lib; + } + subid_nss->find_subid_owners = dlsym(h, "shadow_subid_find_subid_owners"); + if (!subid_nss->find_subid_owners) { + fprintf(shadow_logfd, "%s did not provide @find_subid_owners@\n", libname); + goto close_lib; + } + subid_nss->handle = h; + goto done; + +close_lib: + dlclose(h); + free(subid_nss); +null_subid: + subid_nss = NULL; done: atomic_store(&nss_init_completed, true); diff --git a/libmisc/obscure.c b/lib/obscure.c index 3daaa95..549c2a8 100644 --- a/libmisc/obscure.c +++ b/lib/obscure.c @@ -9,25 +9,27 @@ #include <config.h> -#ifndef USE_PAM - #ident "$Id$" -/* - * This version of obscure.c contains modifications to support "cracklib" - * by Alec Muffet (alec.muffett@uk.sun.com). You must obtain the Cracklib - * library source code for this function to operate. - */ #include <ctype.h> #include <stdio.h> + +#include "alloc.h" +#include "attr.h" +#include "memzero.h" #include "prototypes.h" #include "defines.h" #include "getdef.h" + +#if WITH_LIBBSD == 0 +#include "freezero.h" +#endif /* WITH_LIBBSD */ + /* * can't be a palindrome - like `R A D A R' or `M A D A M' */ -static bool palindrome (unused const char *old, const char *new) +static bool palindrome (MAYBE_UNUSED const char *old, const char *new) { size_t i, j; @@ -73,57 +75,6 @@ static bool similar (/*@notnull@*/const char *old, /*@notnull@*/const char *new) return true; } -/* - * a nice mix of characters. - */ - -static bool simple (unused const char *old, const char *new) -{ - bool digits = false; - bool uppers = false; - bool lowers = false; - bool others = false; - int size; - int i; - - for (i = 0; '\0' != new[i]; i++) { - if (isdigit (new[i])) { - digits = true; - } else if (isupper (new[i])) { - uppers = true; - } else if (islower (new[i])) { - lowers = true; - } else { - others = true; - } - } - - /* - * The scam is this - a password of only one character type - * must be 8 letters long. Two types, 7, and so on. - */ - - size = 9; - if (digits) { - size--; - } - if (uppers) { - size--; - } - if (lowers) { - size--; - } - if (others) { - size--; - } - - if (size <= i) { - return false; - } - - return true; -} - static char *str_lower (/*@returned@*/char *string) { char *cp; @@ -137,28 +88,18 @@ static char *str_lower (/*@returned@*/char *string) static /*@observer@*//*@null@*/const char *password_check ( /*@notnull@*/const char *old, /*@notnull@*/const char *new, - /*@notnull@*/const struct passwd *pwdp) + /*@notnull@*/MAYBE_UNUSED const struct passwd *pwdp) { const char *msg = NULL; char *oldmono, *newmono, *wrapped; -#ifdef HAVE_LIBCRACK - char *dictpath; - -#ifdef HAVE_LIBCRACK_PW - char *FascistCheckPw (); -#else - char *FascistCheck (); -#endif -#endif - if (strcmp (new, old) == 0) { return _("no change"); } newmono = str_lower (xstrdup (new)); oldmono = str_lower (xstrdup (old)); - wrapped = xmalloc (strlen (oldmono) * 2 + 1); + wrapped = XMALLOC(strlen(oldmono) * 2 + 1, char); strcpy (wrapped, oldmono); strcat (wrapped, oldmono); @@ -168,25 +109,8 @@ static /*@observer@*//*@null@*/const char *password_check ( msg = _("case changes only"); } else if (similar (oldmono, newmono)) { msg = _("too similar"); - } else if (simple (old, new)) { - msg = _("too simple"); } else if (strstr (wrapped, newmono) != NULL) { msg = _("rotated"); - } else { -#ifdef HAVE_LIBCRACK - /* - * Invoke Alec Muffett's cracklib routines. - */ - - dictpath = getdef_str ("CRACKLIB_DICTPATH"); - if (NULL != dictpath) { -#ifdef HAVE_LIBCRACK_PW - msg = FascistCheckPw (new, dictpath, pwdp); -#else - msg = FascistCheck (new, dictpath); -#endif - } -#endif } strzero (newmono); strzero (oldmono); @@ -257,7 +181,7 @@ static /*@observer@*//*@null@*/const char *obscure_msg ( } } - maxlen = (size_t) getdef_num ("PASS_MAX_LEN", 8); + maxlen = getdef_num ("PASS_MAX_LEN", 8); if ( (oldlen <= maxlen) && (newlen <= maxlen)) { return NULL; @@ -274,10 +198,8 @@ static /*@observer@*//*@null@*/const char *obscure_msg ( msg = password_check (old1, new1, pwdp); - memzero (new1, newlen); - memzero (old1, oldlen); - free (new1); - free (old1); + freezero (new1, newlen); + freezero (old1, oldlen); return msg; } @@ -300,7 +222,3 @@ bool obscure (const char *old, const char *new, const struct passwd *pwdp) } return true; } - -#else /* !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ -#endif /* !USE_PAM */ diff --git a/lib/pam_defs.h b/lib/pam_defs.h index 2dcda3c..dd016e5 100644 --- a/lib/pam_defs.h +++ b/lib/pam_defs.h @@ -15,7 +15,7 @@ #endif -static struct pam_conv conv = { +static const struct pam_conv conv = { SHADOW_PAM_CONVERSATION, NULL }; diff --git a/libmisc/pam_pass.c b/lib/pam_pass.c index 166a42e..ff49173 100644 --- a/libmisc/pam_pass.c +++ b/lib/pam_pass.c @@ -55,5 +55,5 @@ void do_pam_passwd (const char *user, bool silent, bool change_expired) (void) pam_end (pamh, PAM_SUCCESS); } #else /* !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !USE_PAM */ diff --git a/libmisc/pam_pass_non_interactive.c b/lib/pam_pass_non_interactive.c index 34cdc1f..3d10908 100644 --- a/libmisc/pam_pass_non_interactive.c +++ b/lib/pam_pass_non_interactive.c @@ -13,7 +13,13 @@ #include <string.h> #include <stdio.h> #include <stdlib.h> +#include <strings.h> + #include <security/pam_appl.h> + +#include "alloc.h" +#include "attr.h" +#include "memzero.h" #include "prototypes.h" #include "shadowlog.h" @@ -21,7 +27,7 @@ static int ni_conv (int num_msg, const struct pam_message **msg, struct pam_response **resp, - unused void *appdata_ptr); + MAYBE_UNUSED void *appdata_ptr); static const struct pam_conv non_interactive_pam_conv = { ni_conv, NULL @@ -32,7 +38,7 @@ static const struct pam_conv non_interactive_pam_conv = { static int ni_conv (int num_msg, const struct pam_message **msg, struct pam_response **resp, - unused void *appdata_ptr) + MAYBE_UNUSED void *appdata_ptr) { struct pam_response *responses; int count; @@ -43,8 +49,7 @@ static int ni_conv (int num_msg, return PAM_CONV_ERR; } - responses = (struct pam_response *) calloc ((size_t) num_msg, - sizeof (*responses)); + responses = CALLOC (num_msg, struct pam_response); if (NULL == responses) { return PAM_CONV_ERR; } @@ -93,9 +98,8 @@ static int ni_conv (int num_msg, failed_conversation: for (count=0; count < num_msg; count++) { if (NULL != responses[count].resp) { - memset (responses[count].resp, 0, - strlen (responses[count].resp)); - free (responses[count].resp); + strzero(responses[count].resp); + free(responses[count].resp); responses[count].resp = NULL; } } @@ -141,5 +145,5 @@ int do_pam_passwd_non_interactive (const char *pam_service, return ((PAM_SUCCESS == ret) ? 0 : 1); } #else /* !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !USE_PAM */ @@ -79,7 +79,7 @@ static void endportent (void) (void) fclose (ports); } - ports = (FILE *) 0; + ports = NULL; } /* @@ -127,14 +127,14 @@ static struct port *getportent (void) * - parse off a list of days and times */ - again: +again: /* - * Get the next line and remove the last character, which - * is a '\n'. Lines which begin with '#' are all ignored. + * Get the next line and remove optional trailing '\n'. + * Lines which begin with '#' are all ignored. */ - if (fgets (buf, (int) sizeof buf, ports) == 0) { + if (fgets (buf, sizeof buf, ports) == 0) { errno = saveerr; return 0; } @@ -149,18 +149,14 @@ static struct port *getportent (void) * TTY devices. */ - buf[strlen (buf) - 1] = 0; + buf[strcspn (buf, "\n")] = 0; port.pt_names = ttys; for (cp = buf, j = 0; j < PORT_TTY; j++) { port.pt_names[j] = cp; - while (('\0' != *cp) && (':' != *cp) && (',' != *cp)) { - cp++; - } - - if ('\0' == *cp) { + cp = strpbrk(cp, ":,"); + if (cp == NULL) goto again; /* line format error */ - } if (':' == *cp) { /* end of tty name list */ break; @@ -172,13 +168,13 @@ static struct port *getportent (void) } *cp = '\0'; cp++; - port.pt_names[j + 1] = (char *) 0; + port.pt_names[j] = NULL; /* * Get the list of user names. It is the second colon * separated field, and is a comma separated list of user * names. The entry '*' is used to specify all usernames. - * The last entry in the list is a (char *) 0 pointer. + * The last entry in the list is a NULL pointer. */ if (':' != *cp) { @@ -243,9 +239,7 @@ static struct port *getportent (void) * week or the other two values. */ - for (i = 0; - ('\0' != cp[i]) && ('\0' != cp[i + 1]) && isalpha (cp[i]); - i += 2) { + for (i = 0; isalpha(cp[i]) && ('\0' != cp[i + 1]); i += 2) { switch ((cp[i] << 8) | (cp[i + 1])) { case ('S' << 8) | 'u': port.pt_times[j].t_days |= 01; @@ -294,7 +288,7 @@ static struct port *getportent (void) * representing the times of day. */ - for (dtime = 0; ('\0' != cp[i]) && isdigit (cp[i]); i++) { + for (dtime = 0; isdigit (cp[i]); i++) { dtime = dtime * 10 + cp[i] - '0'; } @@ -304,9 +298,7 @@ static struct port *getportent (void) port.pt_times[j].t_start = dtime; cp = cp + i + 1; - for (dtime = 0, i = 0; - ('\0' != cp[i]) && isdigit (cp[i]); - i++) { + for (dtime = 0, i = 0; isdigit (cp[i]); i++) { dtime = dtime * 10 + cp[i] - '0'; } diff --git a/libmisc/prefix_flag.c b/lib/prefix_flag.c index 4eb5154..bba7102 100644 --- a/libmisc/prefix_flag.c +++ b/lib/prefix_flag.c @@ -11,7 +11,9 @@ #include <stdio.h> #include <assert.h> + #include "defines.h" +#include "alloc.h" #include "prototypes.h" /*@-exitarg@*/ #include "exitcodes.h" @@ -26,6 +28,8 @@ #endif /* ENABLE_SUBIDS */ #include "getdef.h" #include "shadowlog.h" +#include "string/sprintf.h" + static char *passwd_db_file = NULL; static char *spw_db_file = NULL; @@ -83,6 +87,15 @@ extern const char* process_prefix_flag (const char* short_opt, int argc, char ** if (prefix != NULL) { + /* Drop privileges */ + if ( (setregid (getgid (), getgid ()) != 0) + || (setreuid (getuid (), getuid ()) != 0)) { + fprintf (log_get_logfd(), + _("%s: failed to drop privileges (%s)\n"), + log_get_progname(), strerror (errno)); + exit (EXIT_FAILURE); + } + if ( prefix[0] == '\0' || !strcmp(prefix, "/")) return ""; /* if prefix is "/" then we ignore the flag option */ /* should we prevent symbolic link from being used as a prefix? */ @@ -93,50 +106,33 @@ extern const char* process_prefix_flag (const char* short_opt, int argc, char ** log_get_progname()); exit (E_BAD_ARG); } - size_t len; - len = strlen(prefix) + strlen(PASSWD_FILE) + 2; - passwd_db_file = xmalloc(len); - snprintf(passwd_db_file, len, "%s/%s", prefix, PASSWD_FILE); + + xasprintf(&passwd_db_file, "%s/%s", prefix, PASSWD_FILE); pw_setdbname(passwd_db_file); - len = strlen(prefix) + strlen(GROUP_FILE) + 2; - group_db_file = xmalloc(len); - snprintf(group_db_file, len, "%s/%s", prefix, GROUP_FILE); + xasprintf(&group_db_file, "%s/%s", prefix, GROUP_FILE); gr_setdbname(group_db_file); #ifdef SHADOWGRP - len = strlen(prefix) + strlen(SGROUP_FILE) + 2; - sgroup_db_file = xmalloc(len); - snprintf(sgroup_db_file, len, "%s/%s", prefix, SGROUP_FILE); + xasprintf(&sgroup_db_file, "%s/%s", prefix, SGROUP_FILE); sgr_setdbname(sgroup_db_file); #endif -#ifdef USE_NIS - __setspNIS(0); /* disable NIS for now, at least until it is properly supporting a "prefix" */ -#endif - len = strlen(prefix) + strlen(SHADOW_FILE) + 2; - spw_db_file = xmalloc(len); - snprintf(spw_db_file, len, "%s/%s", prefix, SHADOW_FILE); + xasprintf(&spw_db_file, "%s/%s", prefix, SHADOW_FILE); spw_setdbname(spw_db_file); #ifdef ENABLE_SUBIDS - len = strlen(prefix) + strlen("/etc/subuid") + 2; - suid_db_file = xmalloc(len); - snprintf(suid_db_file, len, "%s/%s", prefix, "/etc/subuid"); + xasprintf(&suid_db_file, "%s/%s", prefix, SUBUID_FILE); sub_uid_setdbname(suid_db_file); - len = strlen(prefix) + strlen("/etc/subgid") + 2; - sgid_db_file = xmalloc(len); - snprintf(sgid_db_file, len, "%s/%s", prefix, "/etc/subgid"); + xasprintf(&sgid_db_file, "%s/%s", prefix, SUBGID_FILE); sub_gid_setdbname(sgid_db_file); #endif #ifdef USE_ECONF setdef_config_file(prefix); #else - len = strlen(prefix) + strlen("/etc/login.defs") + 2; - def_conf_file = xmalloc(len); - snprintf(def_conf_file, len, "%s/%s", prefix, "/etc/login.defs"); + xasprintf(&def_conf_file, "%s/%s", prefix, "/etc/login.defs"); setdef_config_file(def_conf_file); #endif } @@ -227,6 +223,29 @@ extern struct passwd *prefix_getpwnam(const char* name) return getpwnam(name); } } +#if HAVE_FGETPWENT_R +extern int prefix_getpwnam_r(const char* name, struct passwd* pwd, + char* buf, size_t buflen, struct passwd** result) +{ + if (passwd_db_file) { + FILE* fg; + int ret = 0; + + fg = fopen(passwd_db_file, "rt"); + if (!fg) + return errno; + while ((ret = fgetpwent_r(fg, pwd, buf, buflen, result)) == 0) { + if (!strcmp(name, pwd->pw_name)) + break; + } + fclose(fg); + return ret; + } + else { + return getpwnam_r(name, pwd, buf, buflen, result); + } +} +#endif extern struct spwd *prefix_getspnam(const char* name) { if (spw_db_file) { @@ -315,26 +334,27 @@ extern void prefix_endgrent(void) extern struct group *prefix_getgr_nam_gid(const char *grname) { - long long int gid; - char *endptr; - struct group *g; + char *end; + long long gid; + struct group *g; if (NULL == grname) { return NULL; } - if (group_db_file) { - errno = 0; - gid = strtoll (grname, &endptr, 10); - if ( ('\0' != *grname) - && ('\0' == *endptr) - && (ERANGE != errno) - && (gid == (gid_t)gid)) { - return prefix_getgrgid ((gid_t) gid); - } - g = prefix_getgrnam (grname); - return g ? __gr_dup(g) : NULL; - } - else + if (!group_db_file) return getgr_nam_gid(grname); + + errno = 0; + gid = strtoll(grname, &end, 10); + if ( ('\0' != *grname) + && ('\0' == *end) + && (0 == errno) + && (gid == (gid_t)gid)) + { + return prefix_getgrgid(gid); + } + + g = prefix_getgrnam(grname); + return g ? __gr_dup(g) : NULL; } diff --git a/lib/prototypes.h b/lib/prototypes.h index 1172b5d..5c56e77 100644 --- a/lib/prototypes.h +++ b/lib/prototypes.h @@ -10,7 +10,7 @@ /* * prototypes.h * - * prototypes of libmisc functions, and private lib functions. + * prototypes of some lib functions, and private lib functions. * * $Id$ * @@ -21,18 +21,17 @@ #include <config.h> +#include <sys/socket.h> #include <sys/stat.h> -#ifdef USE_UTMPX -#include <utmpx.h> -#else -#include <utmp.h> -#endif #include <sys/types.h> #include <pwd.h> #include <grp.h> #include <shadow.h> +#ifdef ENABLE_LASTLOG #include <lastlog.h> +#endif /* ENABLE_LASTLOG */ +#include "attr.h" #include "defines.h" #include "commonio.h" @@ -44,6 +43,7 @@ extern int add_groups (const char *); /* age.c */ extern void agecheck (/*@null@*/const struct spwd *); extern int expire (const struct passwd *, /*@null@*/const struct spwd *); + /* isexpired.c */ extern int isexpired (const struct passwd *, /*@null@*/const struct spwd *); @@ -92,11 +92,11 @@ void cleanup_report_del_group_gshadow (void *group_name); void cleanup_report_mod_passwd (void *cleanup_info); void cleanup_report_mod_group (void *cleanup_info); void cleanup_report_mod_gshadow (void *cleanup_info); -void cleanup_unlock_group (/*@null@*/void *unused); +void cleanup_unlock_group (/*@null@*/void *MAYBE_UNUSED); #ifdef SHADOWGRP -void cleanup_unlock_gshadow (/*@null@*/void *unused); +void cleanup_unlock_gshadow (/*@null@*/void *MAYBE_UNUSED); #endif -void cleanup_unlock_passwd (/*@null@*/void *unused); +void cleanup_unlock_passwd (/*@null@*/void *MAYBE_UNUSED); /* console.c */ extern bool console (const char *); @@ -108,21 +108,18 @@ extern int copy_tree (const char *src_root, const char *dst_root, uid_t old_uid, uid_t new_uid, gid_t old_gid, gid_t new_gid); -/* date_to_str.c */ -extern void date_to_str (size_t size, char buf[size], long date); - /* encrypt.c */ extern /*@exposed@*//*@null@*/char *pw_encrypt (const char *, const char *); -/* entry.c */ -extern void pw_entry (const char *, struct passwd *); - /* env.c */ extern void addenv (const char *, /*@null@*/const char *); extern void initenv (void); extern void set_env (int, char *const *); extern void sanitize_env (void); +/* fd.c */ +extern void check_fds (void); + /* fields.c */ extern void change_field (char *, size_t, const char *); extern int valid_field (const char *, const char *); @@ -152,11 +149,10 @@ extern int get_gid (const char *gidstr, gid_t *gid); /* getgr_nam_gid.c */ extern /*@only@*//*@null@*/struct group *getgr_nam_gid (/*@null@*/const char *grname); -/* getlong.c */ -extern int getlong (const char *numstr, /*@out@*/long int *result); - /* get_pid.c */ extern int get_pid (const char *pidstr, pid_t *pid); +extern int get_pidfd_from_fd(const char *pidfdstr); +extern int open_pidfd(const char *pidstr); /* getrange */ extern int getrange (const char *range, @@ -169,11 +165,9 @@ extern time_t gettime (void); /* get_uid.c */ extern int get_uid (const char *uidstr, uid_t *uid); -/* getulong.c */ -extern int getulong (const char *numstr, /*@out@*/unsigned long int *result); - /* fputsx.c */ -extern /*@null@*/char *fgetsx (/*@returned@*/ /*@out@*/char *, int, FILE *); +ATTR_ACCESS(write_only, 1, 2) +extern /*@null@*/char *fgetsx(/*@returned@*/char *restrict, int, FILE *restrict); extern int fputsx (const char *, FILE *); /* groupio.c */ @@ -185,8 +179,7 @@ extern void __gr_set_changed (void); /* groupmem.c */ extern /*@null@*/ /*@only@*/struct group *__gr_dup (const struct group *grent); extern void gr_free_members (struct group *grent); -extern void gr_free (/*@out@*/ /*@only@*/struct group *grent); -extern bool gr_append_member (struct group *grp, char *member); +extern void gr_free(/*@only@*/struct group *grent); /* hushed.c */ extern bool hushed (const char *username); @@ -212,24 +205,26 @@ extern void setup_limits (const struct passwd *); #endif /* list.c */ -extern /*@only@*/ /*@out@*/char **add_list (/*@returned@*/ /*@only@*/char **, const char *); -extern /*@only@*/ /*@out@*/char **del_list (/*@returned@*/ /*@only@*/char **, const char *); -extern /*@only@*/ /*@out@*/char **dup_list (char *const *); +extern /*@only@*/char **add_list (/*@returned@*/ /*@only@*/char **, const char *); +extern /*@only@*/char **del_list (/*@returned@*/ /*@only@*/char **, const char *); +extern /*@only@*/char **dup_list (char *const *); extern bool is_on_list (char *const *list, const char *member); extern /*@only@*/char **comma_to_list (const char *); +#ifdef ENABLE_LASTLOG /* log.c */ extern void dolastlog ( struct lastlog *ll, const struct passwd *pw, /*@unique@*/const char *line, /*@unique@*/const char *host); +#endif /* ENABLE_LASTLOG */ /* login_nopam.c */ extern int login_access (const char *user, const char *from); /* loginprompt.c */ -extern void login_prompt (const char *, char *, int); +extern void login_prompt (char *, int); /* mail.c */ extern void mailcheck (void); @@ -304,9 +299,7 @@ extern int do_pam_passwd_non_interactive (const char *pam_service, #endif /* USE_PAM */ /* obscure.c */ -#ifndef USE_PAM extern bool obscure (const char *, const char *, const struct passwd *); -#endif /* pam_pass.c */ #ifdef USE_PAM @@ -322,6 +315,10 @@ extern struct group *prefix_getgrnam(const char *name); extern struct group *prefix_getgrgid(gid_t gid); extern struct passwd *prefix_getpwuid(uid_t uid); extern struct passwd *prefix_getpwnam(const char* name); +#if HAVE_FGETPWENT_R +extern int prefix_getpwnam_r(const char* name, struct passwd* pwd, + char* buf, size_t buflen, struct passwd** result); +#endif extern struct spwd *prefix_getspnam(const char* name); extern struct group *prefix_getgr_nam_gid(const char *grname); extern void prefix_setpwent(void); @@ -332,9 +329,7 @@ extern struct group* prefix_getgrent(void); extern void prefix_endgrent(void); /* pwd2spwd.c */ -#ifndef USE_PAM extern struct spwd *pwd_to_spwd (const struct passwd *); -#endif /* pwdcheck.c */ #ifndef USE_PAM @@ -351,14 +346,19 @@ extern /*@dependent@*/ /*@null@*/struct commonio_entry *__pw_get_head (void); /* pwmem.c */ extern /*@null@*/ /*@only@*/struct passwd *__pw_dup (const struct passwd *pwent); -extern void pw_free (/*@out@*/ /*@only@*/struct passwd *pwent); +extern void pw_free(/*@only@*/struct passwd *pwent); + +/* csrand.c */ +unsigned long csrand (void); +unsigned long csrand_uniform (unsigned long n); +unsigned long csrand_interval (unsigned long min, unsigned long max); /* remove_tree.c */ extern int remove_tree (const char *root, bool remove_root); /* rlogin.c */ -extern int do_rlogin (const char *remote_host, char *name, size_t namelen, - char *term, size_t termlen); +extern int do_rlogin(const char *remote_host, char *name, size_t namesize, + char *term, size_t termsize); /* root_flag.c */ extern void process_root_flag (const char* short_opt, int argc, char **argv); @@ -376,7 +376,7 @@ extern int check_selinux_permit (const char *perm_name); /* semanage.c */ #ifdef WITH_SELINUX -extern int set_seuser(const char *login_name, const char *seuser_name); +extern int set_seuser(const char *login_name, const char *seuser_name, const char *serange); extern int del_seuser(const char *login_name); #endif @@ -409,7 +409,7 @@ extern struct spwd *sgetspent (const char *string); /* sgroupio.c */ extern void __sgr_del_entry (const struct commonio_entry *ent); extern /*@null@*/ /*@only@*/struct sgrp *__sgr_dup (const struct sgrp *sgent); -extern void sgr_free (/*@out@*/ /*@only@*/struct sgrp *sgent); +extern void sgr_free(/*@only@*/struct sgrp *sgent); extern /*@dependent@*/ /*@null@*/struct commonio_entry *__sgr_get_head (void); extern void __sgr_set_changed (void); @@ -419,14 +419,15 @@ extern void __spw_del_entry (const struct commonio_entry *ent); /* shadowmem.c */ extern /*@null@*/ /*@only@*/struct spwd *__spw_dup (const struct spwd *spent); -extern void spw_free (/*@out@*/ /*@only@*/struct spwd *spent); +extern void spw_free(/*@only@*/struct spwd *spent); /* shell.c */ extern int shell (const char *file, /*@null@*/const char *arg, char *const envp[]); /* spawn.c */ -extern int run_command (const char *cmd, const char *argv[], - /*@null@*/const char *envp[], /*@out@*/int *status); +ATTR_ACCESS(write_only, 4) +extern int run_command(const char *cmd, const char *argv[], + /*@null@*/const char *envp[], int *restrict status); /* strtoday.c */ extern long strtoday (const char *); @@ -459,33 +460,68 @@ extern int set_filesize_limit (int blocks); /* user_busy.c */ extern int user_busy (const char *name, uid_t uid); -/* utmp.c */ -#ifndef USE_UTMPX -extern /*@null@*/struct utmp *get_current_utmp (void); -extern struct utmp *prepare_utmp (const char *name, - const char *line, - const char *host, - /*@null@*/const struct utmp *ut); -extern int setutmp (struct utmp *ut); -#else -extern /*@null@*/struct utmpx *get_current_utmp (void); -extern struct utmpx *prepare_utmpx (const char *name, - const char *line, - const char *host, - /*@null@*/const struct utmpx *ut); -extern int setutmpx (struct utmpx *utx); -#endif /* USE_UTMPX */ +/* + * Session management: utmp.c or logind.c + */ + +/** + * @brief Get host for the current session + * + * @param[out] out Host name + * + * @return 0 or a positive integer if the host was obtained properly, + * another value on error. + */ +extern int get_session_host (char **out); +#ifndef ENABLE_LOGIND +/** + * @brief Update or create an utmp entry in utmp, wtmp, utmpw, or wtmpx + * + * @param[in] user username + * @param[in] tty tty + * @param[in] host hostname + * + * @return 0 if utmp was updated properly, + * 1 on error. + */ +extern int update_utmp (const char *user, + const char *tty, + const char *host); +/** + * @brief Update the cumulative failure log + * + * @param[in] failent_user username + * @param[in] tty tty + * @param[in] host hostname + * + */ +extern void record_failure(const char *failent_user, + const char *tty, + const char *hostname); +#endif /* ENABLE_LOGIND */ + +/** + * @brief Number of active user sessions + * + * @param[in] name username + * @param[in] limit maximum number of active sessions + * + * @return number of active sessions. + * + */ +extern unsigned long active_sessions_count(const char *name, + unsigned long limit); /* valid.c */ extern bool valid (const char *, const struct passwd *); -/* xmalloc.c */ -extern /*@maynotreturn@*/ /*@only@*//*@out@*//*@notnull@*/void *xmalloc (size_t size) - /*@ensures MaxSet(result) == (size - 1); @*/; -extern /*@maynotreturn@*/ /*@only@*//*@notnull@*/char *xstrdup (const char *); +/* write_full.c */ +extern int write_full(int fd, const void *buf, size_t count); /* xgetpwnam.c */ extern /*@null@*/ /*@only@*/struct passwd *xgetpwnam (const char *); +/* xprefix_getpwnam.c */ +extern /*@null@*/ /*@only@*/struct passwd *xprefix_getpwnam (const char *); /* xgetpwuid.c */ extern /*@null@*/ /*@only@*/struct passwd *xgetpwuid (uid_t); /* xgetgrnam.c */ diff --git a/lib/pwauth.c b/lib/pwauth.c index 62de472..0cd3412 100644 --- a/lib/pwauth.c +++ b/lib/pwauth.c @@ -18,21 +18,26 @@ #include <stdio.h> #include <sys/types.h> #include <unistd.h> -#include "prototypes.h" + +#include "agetpass.h" #include "defines.h" +#include "memzero.h" +#include "prototypes.h" #include "pwauth.h" #include "getdef.h" +#include "string/sprintf.h" + #ifdef SKEY #include <skey.h> #endif + + #ifdef __linux__ /* standard password prompt by default */ static const char *PROMPT = gettext_noop ("Password: "); #else static const char *PROMPT = gettext_noop ("%s's Password: "); #endif -bool wipe_clear_pass = true; -/*@null@*/char *clear_pass = NULL; /* * pw_auth - perform getpass/crypt authentication @@ -47,16 +52,16 @@ int pw_auth (const char *cipher, int reason, /*@null@*/const char *input) { - char prompt[1024]; - char *clear = NULL; - const char *cp; - const char *encrypted; - int retval; + int retval; + char prompt[1024]; + char *clear = NULL; + const char *cp; + const char *encrypted; #ifdef SKEY - bool use_skey = false; - char challenge_info[40]; - struct skey skey; + bool use_skey = false; + char challenge_info[40]; + struct skey skey; #endif /* @@ -137,15 +142,9 @@ int pw_auth (const char *cipher, } #endif - snprintf (prompt, sizeof prompt, cp, user); - clear = getpass (prompt); - if (NULL == clear) { - static char c[1]; - - c[0] = '\0'; - clear = c; - } - input = clear; + SNPRINTF(prompt, cp, user); + clear = agetpass(prompt); + input = (clear == NULL) ? "" : clear; } /* @@ -171,14 +170,9 @@ int pw_auth (const char *cipher, * -- AR 8/22/1999 */ if ((0 != retval) && ('\0' == input[0]) && use_skey) { - clear = getpass (prompt); - if (NULL == clear) { - static char c[1]; - - c[0] = '\0'; - clear = c; - } - input = clear; + erase_pass(clear); + clear = agetpass(prompt); + input = (clear == NULL) ? "" : clear; } if ((0 != retval) && use_skey) { @@ -192,20 +186,10 @@ int pw_auth (const char *cipher, } } #endif + erase_pass(clear); - /* - * Things like RADIUS authentication may need the password - - * if the external variable wipe_clear_pass is zero, we will - * not wipe it (the caller should wipe clear_pass when it is - * no longer needed). --marekm - */ - - clear_pass = clear; - if (wipe_clear_pass && (NULL != clear) && ('\0' != *clear)) { - strzero (clear); - } return retval; } #else /* !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !USE_PAM */ diff --git a/libmisc/pwd2spwd.c b/lib/pwd2spwd.c index 139a024..eea9519 100644 --- a/libmisc/pwd2spwd.c +++ b/lib/pwd2spwd.c @@ -11,8 +11,6 @@ #ident "$Id$" -#ifndef USE_PAM - #include <sys/types.h> #include "prototypes.h" #include "defines.h" @@ -41,8 +39,8 @@ struct spwd *pwd_to_spwd (const struct passwd *pw) * Defaults used if there is no pw_age information. */ sp.sp_min = 0; - sp.sp_max = (10000L * DAY) / SCALE; - sp.sp_lstchg = (long) gettime () / SCALE; + sp.sp_max = 10000; + sp.sp_lstchg = gettime () / DAY; if (0 == sp.sp_lstchg) { /* Better disable aging than requiring a password * change */ @@ -61,7 +59,4 @@ struct spwd *pwd_to_spwd (const struct passwd *pw) return &sp; } -#else /* USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ -#endif /* !USE_PAM */ diff --git a/libmisc/pwd_init.c b/lib/pwd_init.c index 63c71e2..b3f94e1 100644 --- a/libmisc/pwd_init.c +++ b/lib/pwd_init.c @@ -15,9 +15,7 @@ #include <signal.h> #include <sys/types.h> #include <sys/stat.h> -#ifdef HAVE_SYS_RESOURCE_H #include <sys/resource.h> -#endif #include "prototypes.h" @@ -28,39 +26,22 @@ */ void pwd_init (void) { -#ifdef HAVE_SYS_RESOURCE_H struct rlimit rlim; -#ifdef RLIMIT_CORE rlim.rlim_cur = rlim.rlim_max = 0; setrlimit (RLIMIT_CORE, &rlim); -#endif + rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY; -#ifdef RLIMIT_AS setrlimit (RLIMIT_AS, &rlim); -#endif -#ifdef RLIMIT_CPU + setrlimit (RLIMIT_CPU, &rlim); -#endif -#ifdef RLIMIT_DATA setrlimit (RLIMIT_DATA, &rlim); -#endif -#ifdef RLIMIT_FSIZE setrlimit (RLIMIT_FSIZE, &rlim); -#endif -#ifdef RLIMIT_NOFILE setrlimit (RLIMIT_NOFILE, &rlim); -#endif #ifdef RLIMIT_RSS setrlimit (RLIMIT_RSS, &rlim); #endif -#ifdef RLIMIT_STACK setrlimit (RLIMIT_STACK, &rlim); -#endif -#else /* !HAVE_SYS_RESOURCE_H */ - set_filesize_limit (30000); - /* don't know how to set the other limits... */ -#endif /* !HAVE_SYS_RESOURCE_H */ signal (SIGALRM, SIG_IGN); signal (SIGHUP, SIG_IGN); @@ -68,12 +49,8 @@ void pwd_init (void) signal (SIGPIPE, SIG_IGN); signal (SIGQUIT, SIG_IGN); signal (SIGTERM, SIG_IGN); -#ifdef SIGTSTP signal (SIGTSTP, SIG_IGN); -#endif -#ifdef SIGTTOU signal (SIGTTOU, SIG_IGN); -#endif umask (077); } diff --git a/libmisc/pwdcheck.c b/lib/pwdcheck.c index 15fc3a3..93c9f5c 100644 --- a/libmisc/pwdcheck.c +++ b/lib/pwdcheck.c @@ -13,12 +13,14 @@ #include <stdio.h> #include <shadow.h> + +#include "attr.h" #include "prototypes.h" #include "defines.h" #include "pwauth.h" #include "shadowlog.h" -void passwd_check (const char *user, const char *passwd, unused const char *progname) +void passwd_check (const char *user, const char *passwd, MAYBE_UNUSED const char *progname) { struct spwd *sp; @@ -26,7 +28,7 @@ void passwd_check (const char *user, const char *passwd, unused const char *prog if (NULL != sp) { passwd = sp->sp_pwdp; } - if (pw_auth (passwd, user, PW_LOGIN, (char *) 0) != 0) { + if (pw_auth (passwd, user, PW_LOGIN, NULL) != 0) { SYSLOG ((LOG_WARN, "incorrect password for `%s'", user)); (void) sleep (1); fprintf (log_get_logfd(), _("Incorrect password for %s.\n"), user); @@ -34,5 +36,5 @@ void passwd_check (const char *user, const char *passwd, unused const char *prog } } #else /* USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* USE_PAM */ @@ -26,7 +26,8 @@ static /*@null@*/ /*@only@*/void *passwd_dup (const void *ent) return __pw_dup (pw); } -static void passwd_free (/*@out@*/ /*@only@*/void *ent) +static void +passwd_free(/*@only@*/void *ent) { struct passwd *pw = ent; @@ -42,7 +43,7 @@ static const char *passwd_getname (const void *ent) static void *passwd_parse (const char *line) { - return (void *) sgetpwent (line); + return sgetpwent (line); } static int passwd_put (const void *ent, FILE * file) @@ -137,7 +138,7 @@ int pw_open (int mode) int pw_update (const struct passwd *pw) { - return commonio_update (&passwd_db, (const void *) pw); + return commonio_update (&passwd_db, pw); } int pw_remove (const char *name) @@ -182,15 +183,23 @@ struct commonio_db *__pw_get_db (void) static int pw_cmp (const void *p1, const void *p2) { + const struct commonio_entry *const *ce1; + const struct commonio_entry *const *ce2; + const struct passwd *pw1, *pw2; uid_t u1, u2; - if ((*(struct commonio_entry **) p1)->eptr == NULL) + ce1 = p1; + pw1 = (*ce1)->eptr; + if (pw1 == NULL) return 1; - if ((*(struct commonio_entry **) p2)->eptr == NULL) + + ce2 = p2; + pw2 = (*ce2)->eptr; + if (pw2 == NULL) return -1; - u1 = ((struct passwd *) (*(struct commonio_entry **) p1)->eptr)->pw_uid; - u2 = ((struct passwd *) (*(struct commonio_entry **) p2)->eptr)->pw_uid; + u1 = pw1->pw_uid; + u2 = pw2->pw_uid; if (u1 < u2) return -1; diff --git a/lib/pwmem.c b/lib/pwmem.c index 867e3f7..9c6e58d 100644 --- a/lib/pwmem.c +++ b/lib/pwmem.c @@ -13,7 +13,10 @@ #ident "$Id$" #include <stdio.h> + +#include "alloc.h" #include "defines.h" +#include "memzero.h" #include "prototypes.h" #include "pwio.h" @@ -21,12 +24,11 @@ { struct passwd *pw; - pw = (struct passwd *) malloc (sizeof *pw); + pw = CALLOC (1, struct passwd); if (NULL == pw) { return NULL; } /* The libc might define other fields. They won't be copied. */ - memset (pw, 0, sizeof *pw); pw->pw_uid = pwent->pw_uid; pw->pw_gid = pwent->pw_gid; /*@-mustfreeonly@*/ @@ -68,7 +70,8 @@ return pw; } -void pw_free (/*@out@*/ /*@only@*/struct passwd *pwent) +void +pw_free(/*@only@*/struct passwd *pwent) { if (pwent != NULL) { free (pwent->pw_name); diff --git a/lib/readpassphrase.c b/lib/readpassphrase.c new file mode 100644 index 0000000..5ff060c --- /dev/null +++ b/lib/readpassphrase.c @@ -0,0 +1,198 @@ +/* $OpenBSD: readpassphrase.c,v 1.26 2016/10/18 12:47:18 millert Exp $ */ + +/* + * Copyright (c) 2000-2002, 2007, 2010 + * Todd C. Miller <Todd.Miller@courtesan.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ + +#include <ctype.h> +#include <errno.h> +#include <fcntl.h> +#include <paths.h> +#include <pwd.h> +#include <signal.h> +#include <string.h> +#include <termios.h> +#include <unistd.h> +#include <readpassphrase.h> + +#ifndef TCSASOFT +#define TCSASOFT 0 +#endif + +#ifndef _NSIG +#if defined(NSIG) +#define _NSIG NSIG +#else +/* The SIGRTMAX define might be set to a function such as sysconf(). */ +#define _NSIG (SIGRTMAX + 1) +#endif +#endif + +static volatile sig_atomic_t signo[_NSIG]; + +static void handler(int); + +char * +readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags) +{ + ssize_t nr; + int input, output, save_errno, i, need_restart; + char ch, *p, *end; + struct termios term, oterm; + struct sigaction sa, savealrm, saveint, savehup, savequit, saveterm; + struct sigaction savetstp, savettin, savettou, savepipe; + + /* I suppose we could alloc on demand in this case (XXX). */ + if (bufsiz == 0) { + errno = EINVAL; + return(NULL); + } + +restart: + for (i = 0; i < _NSIG; i++) + signo[i] = 0; + nr = -1; + save_errno = 0; + need_restart = 0; + /* + * Read and write to /dev/tty if available. If not, read from + * stdin and write to stderr unless a tty is required. + */ + if ((flags & RPP_STDIN) || + (input = output = open(_PATH_TTY, O_RDWR)) == -1) { + if (flags & RPP_REQUIRE_TTY) { + errno = ENOTTY; + return(NULL); + } + input = STDIN_FILENO; + output = STDERR_FILENO; + } + + /* + * Turn off echo if possible. + * If we are using a tty but are not the foreground pgrp this will + * generate SIGTTOU, so do it *before* installing the signal handlers. + */ + if (input != STDIN_FILENO && tcgetattr(input, &oterm) == 0) { + memcpy(&term, &oterm, sizeof(term)); + if (!(flags & RPP_ECHO_ON)) + term.c_lflag &= ~(ECHO | ECHONL); +#ifdef VSTATUS + if (term.c_cc[VSTATUS] != _POSIX_VDISABLE) + term.c_cc[VSTATUS] = _POSIX_VDISABLE; +#endif + (void)tcsetattr(input, TCSAFLUSH|TCSASOFT, &term); + } else { + memset(&term, 0, sizeof(term)); + term.c_lflag |= ECHO; + memset(&oterm, 0, sizeof(oterm)); + oterm.c_lflag |= ECHO; + } + + /* + * Catch signals that would otherwise cause the user to end + * up with echo turned off in the shell. Don't worry about + * things like SIGXCPU and SIGVTALRM for now. + */ + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; /* don't restart system calls */ + sa.sa_handler = handler; + (void)sigaction(SIGALRM, &sa, &savealrm); + (void)sigaction(SIGHUP, &sa, &savehup); + (void)sigaction(SIGINT, &sa, &saveint); + (void)sigaction(SIGPIPE, &sa, &savepipe); + (void)sigaction(SIGQUIT, &sa, &savequit); + (void)sigaction(SIGTERM, &sa, &saveterm); + (void)sigaction(SIGTSTP, &sa, &savetstp); + (void)sigaction(SIGTTIN, &sa, &savettin); + (void)sigaction(SIGTTOU, &sa, &savettou); + + if (!(flags & RPP_STDIN)) + (void)write(output, prompt, strlen(prompt)); + end = buf + bufsiz - 1; + p = buf; + while ((nr = read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r') { + if (p < end) { + if ((flags & RPP_SEVENBIT)) + ch &= 0x7f; + if (isalpha((unsigned char)ch)) { + if ((flags & RPP_FORCELOWER)) + ch = (char)tolower((unsigned char)ch); + if ((flags & RPP_FORCEUPPER)) + ch = (char)toupper((unsigned char)ch); + } + *p++ = ch; + } + } + *p = '\0'; + save_errno = errno; + if (!(term.c_lflag & ECHO)) + (void)write(output, "\n", 1); + + /* Restore old terminal settings and signals. */ + if (memcmp(&term, &oterm, sizeof(term)) != 0) { + const int sigttou = signo[SIGTTOU]; + + /* Ignore SIGTTOU generated when we are not the fg pgrp. */ + while (tcsetattr(input, TCSAFLUSH|TCSASOFT, &oterm) == -1 && + errno == EINTR && !signo[SIGTTOU]) + continue; + signo[SIGTTOU] = sigttou; + } + (void)sigaction(SIGALRM, &savealrm, NULL); + (void)sigaction(SIGHUP, &savehup, NULL); + (void)sigaction(SIGINT, &saveint, NULL); + (void)sigaction(SIGQUIT, &savequit, NULL); + (void)sigaction(SIGPIPE, &savepipe, NULL); + (void)sigaction(SIGTERM, &saveterm, NULL); + (void)sigaction(SIGTSTP, &savetstp, NULL); + (void)sigaction(SIGTTIN, &savettin, NULL); + (void)sigaction(SIGTTOU, &savettou, NULL); + if (input != STDIN_FILENO) + (void)close(input); + + /* + * If we were interrupted by a signal, resend it to ourselves + * now that we have restored the signal handlers. + */ + for (i = 0; i < _NSIG; i++) { + if (signo[i]) { + kill(getpid(), i); + switch (i) { + case SIGTSTP: + case SIGTTIN: + case SIGTTOU: + need_restart = 1; + } + } + } + if (need_restart) + goto restart; + + if (save_errno) + errno = save_errno; + return(nr == -1 ? NULL : buf); +} + +static void handler(int s) +{ + + signo[s] = 1; +} diff --git a/lib/readpassphrase.h b/lib/readpassphrase.h new file mode 100644 index 0000000..2530b7f --- /dev/null +++ b/lib/readpassphrase.h @@ -0,0 +1,47 @@ +/* $OpenBSD: readpassphrase.h,v 1.4 2003/06/03 01:52:39 millert Exp $ */ + +/* + * Copyright (c) 2000, 2002 Todd C. Miller <Todd.Miller@courtesan.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ + +#ifndef LIBBSD_READPASSPHRASE_H +#define LIBBSD_READPASSPHRASE_H + +#define RPP_ECHO_OFF 0x00 /* Turn off echo (default). */ +#define RPP_ECHO_ON 0x01 /* Leave echo on. */ +#define RPP_REQUIRE_TTY 0x02 /* Fail if there is no tty. */ +#define RPP_FORCELOWER 0x04 /* Force input to lower case. */ +#define RPP_FORCEUPPER 0x08 /* Force input to upper case. */ +#define RPP_SEVENBIT 0x10 /* Strip the high bit from input. */ +#define RPP_STDIN 0x20 /* Read from stdin, not /dev/tty */ + +#ifdef LIBBSD_OVERLAY +#include <sys/cdefs.h> +#endif +#include <sys/types.h> + +#ifdef __cplusplus +extern "C" { +#endif +char * readpassphrase(const char *, char *, size_t, int); +#ifdef __cplusplus +} +#endif + +#endif /* !LIBBSD_READPASSPHRASE_H */ diff --git a/libmisc/remove_tree.c b/lib/remove_tree.c index 3d76b95..3d76b95 100644 --- a/libmisc/remove_tree.c +++ b/lib/remove_tree.c diff --git a/libmisc/rlogin.c b/lib/rlogin.c index fa67dc3..cbc05dd 100644 --- a/libmisc/rlogin.c +++ b/lib/rlogin.c @@ -18,76 +18,36 @@ #include <stdio.h> #include <pwd.h> #include <netdb.h> + +#include "atoi/str2i.h" + + static struct { int spd_name; int spd_baud; } speed_table[] = { -#ifdef B50 - { - B50, 50}, -#endif -#ifdef B75 - { - B75, 75}, -#endif -#ifdef B110 - { - B110, 110}, -#endif -#ifdef B134 - { - B134, 134}, -#endif -#ifdef B150 - { - B150, 150}, -#endif -#ifdef B200 - { - B200, 200}, -#endif -#ifdef B300 - { - B300, 300}, -#endif -#ifdef B600 - { - B600, 600}, -#endif -#ifdef B1200 - { - B1200, 1200}, -#endif -#ifdef B1800 - { - B1800, 1800}, -#endif -#ifdef B2400 - { - B2400, 2400}, -#endif -#ifdef B4800 - { - B4800, 4800}, -#endif -#ifdef B9600 - { - B9600, 9600}, -#endif -#ifdef B19200 - { - B19200, 19200}, -#endif -#ifdef B38400 - { - B38400, 38400}, -#endif - { - -1, -1} + { B50, 50}, + { B75, 75}, + { B110, 110}, + { B134, 134}, + { B150, 150}, + { B200, 200}, + { B300, 300}, + { B600, 600}, + { B1200, 1200}, + { B1800, 1800}, + { B2400, 2400}, + { B4800, 4800}, + { B9600, 9600}, + { B19200, 19200}, + { B38400, 38400}, + { -1, -1} }; -static void get_remote_string (char *buf, size_t size) + +static void +get_remote_string(char *buf, size_t size) { for (;;) { if (read (0, buf, 1) != 1) { @@ -101,11 +61,13 @@ static void get_remote_string (char *buf, size_t size) ++buf; } } - /*NOTREACHED*/} + /*NOTREACHED*/ +} + int -do_rlogin (const char *remote_host, char *name, size_t namelen, char *term, - size_t termlen) +do_rlogin(const char *remote_host, char *name, size_t namesize, char *term, + size_t termsize) { struct passwd *pwd; char remote_name[32]; @@ -115,18 +77,17 @@ do_rlogin (const char *remote_host, char *name, size_t namelen, char *term, int i; TERMIO termio; - get_remote_string (remote_name, sizeof remote_name); - get_remote_string (name, namelen); - get_remote_string (term, termlen); + get_remote_string(remote_name, sizeof(remote_name)); + get_remote_string(name, namesize); + get_remote_string(term, termsize); cp = strchr (term, '/'); if (NULL != cp) { *cp = '\0'; cp++; - if (getulong (cp, &remote_speed) == 0) { + if (str2ul(&remote_speed, cp) == -1) remote_speed = 9600; - } } for (i = 0; ( (speed_table[i].spd_baud != remote_speed) @@ -172,4 +133,3 @@ do_rlogin (const char *remote_host, char *name, size_t namelen, char *term, #endif } #endif /* RLOGIN */ - diff --git a/libmisc/root_flag.c b/lib/root_flag.c index 62915b0..5572831 100644 --- a/libmisc/root_flag.c +++ b/lib/root_flag.c @@ -91,16 +91,16 @@ static void change_root (const char* newroot) exit (E_BAD_ARG); } - if (chdir (newroot) != 0) { + if (chroot (newroot) != 0) { fprintf(log_get_logfd(), - _("%s: cannot chdir to chroot directory %s: %s\n"), + _("%s: unable to chroot to directory %s: %s\n"), log_get_progname(), newroot, strerror (errno)); exit (E_BAD_ARG); } - if (chroot (newroot) != 0) { + if (chdir ("/") != 0) { fprintf(log_get_logfd(), - _("%s: unable to chroot to directory %s: %s\n"), + _("%s: cannot chdir in chroot directory %s: %s\n"), log_get_progname(), newroot, strerror (errno)); exit (E_BAD_ARG); } diff --git a/lib/run_part.c b/lib/run_part.c index bce11d3..670d815 100644 --- a/lib/run_part.c +++ b/lib/run_part.c @@ -1,3 +1,5 @@ +#include <config.h> + #include <dirent.h> #include <errno.h> #include <stdio.h> @@ -8,9 +10,12 @@ #include <sys/wait.h> #include <unistd.h> #include <lib/prototypes.h> + +#include "alloc.h" #include "run_part.h" #include "shadowlog_internal.h" + int run_part (char *script_path, const char *name, const char *action) { int pid; @@ -53,25 +58,22 @@ int run_parts (const char *directory, const char *name, const char *action) } for (n=0; n<scanlist; n++) { - int path_length; - struct stat sb; + char *s; + struct stat sb; - path_length=strlen(directory) + strlen(namelist[n]->d_name) + 2; - char *s = (char*)malloc(path_length); - if (!s) { - printf ("could not allocate memory\n"); + if (asprintf(&s, "%s/%s", directory, namelist[n]->d_name) == -1) { + fprintf(stderr, "could not allocate memory\n"); for (; n<scanlist; n++) { - free (namelist[n]); + free(namelist[n]); } - free (namelist); + free(namelist); return (1); } - snprintf (s, path_length, "%s/%s", directory, namelist[n]->d_name); execute_result = 0; if (stat (s, &sb) == -1) { perror ("stat"); - free (s); + free(s); for (; n<scanlist; n++) { free (namelist[n]); } @@ -83,7 +85,7 @@ int run_parts (const char *directory, const char *name, const char *action) execute_result = run_part (s, name, action); } - free (s); + free(s); if (execute_result!=0) { fprintf (shadow_logfd, diff --git a/libmisc/salt.c b/lib/salt.c index e5f633a..529d59c 100644 --- a/libmisc/salt.c +++ b/lib/salt.c @@ -10,8 +10,6 @@ * * Written by Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl>, * it is in the public domain. - * - * l64a was Written by J.T. Conklin <jtc@netbsd.org>. Public domain. */ #include <config.h> @@ -22,9 +20,8 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> -#if HAVE_SYS_RANDOM_H -#include <sys/random.h> -#endif +#include <strings.h> + #include "prototypes.h" #include "defines.h" #include "getdef.h" @@ -91,13 +88,9 @@ #define GENSALT_SETTING_SIZE 100 /* local function prototypes */ -static long read_random_bytes (void); #if !USE_XCRYPT_GENSALT static /*@observer@*/const char *gensalt (size_t salt_size); #endif /* !USE_XCRYPT_GENSALT */ -#if defined(USE_SHA_CRYPT) || defined(USE_BCRYPT) -static long shadow_random (long min, long max); -#endif /* USE_SHA_CRYPT || USE_BCRYPT */ #ifdef USE_SHA_CRYPT static /*@observer@*/unsigned long SHA_get_salt_rounds (/*@null@*/const int *prefered_rounds); static /*@observer@*/void SHA_salt_rounds_to_buf (char *buf, unsigned long rounds); @@ -111,113 +104,6 @@ static /*@observer@*/unsigned long YESCRYPT_get_salt_cost (/*@null@*/const int * static /*@observer@*/void YESCRYPT_salt_cost_to_buf (char *buf, unsigned long cost); #endif /* USE_YESCRYPT */ -#if !USE_XCRYPT_GENSALT && !defined(HAVE_L64A) -static /*@observer@*/char *l64a (long value) -{ - static char buf[8]; - char *s = buf; - int digit; - int i; - - if (value < 0) { - errno = EINVAL; - return(NULL); - } - - for (i = 0; value != 0 && i < 6; i++) { - digit = value & 0x3f; - - if (digit < 2) { - *s = digit + '.'; - } else if (digit < 12) { - *s = digit + '0' - 2; - } else if (digit < 38) { - *s = digit + 'A' - 12; - } else { - *s = digit + 'a' - 38; - } - - value >>= 6; - s++; - } - - *s = '\0'; - - return buf; -} -#endif /* !USE_XCRYPT_GENSALT && !defined(HAVE_L64A) */ - -/* Read sizeof (long) random bytes from /dev/urandom. */ -static long read_random_bytes (void) -{ - long randval = 0; - -#ifdef HAVE_ARC4RANDOM_BUF - /* arc4random_buf, if it exists, can never fail. */ - arc4random_buf (&randval, sizeof (randval)); - goto end; -#endif - -#ifdef HAVE_GETENTROPY - /* getentropy may exist but lack kernel support. */ - if (getentropy (&randval, sizeof (randval)) == 0) { - goto end; - } -#endif - -#ifdef HAVE_GETRANDOM - /* Likewise getrandom. */ - if ((size_t) getrandom (&randval, sizeof (randval), 0) == sizeof (randval)) { - goto end; - } -#endif - - /* Use /dev/urandom as a last resort. */ - FILE *f = fopen ("/dev/urandom", "r"); - if (NULL == f) { - goto fail; - } - - if (fread (&randval, sizeof (randval), 1, f) != 1) { - fclose(f); - goto fail; - } - - fclose(f); - goto end; - -fail: - fprintf (log_get_logfd(), - _("Unable to obtain random bytes.\n")); - exit (1); - -end: - return randval; -} - -#if defined(USE_SHA_CRYPT) || defined(USE_BCRYPT) -/* - * Return a random number between min and max (both included). - * - * It favors slightly the higher numbers. - */ -static long shadow_random (long min, long max) -{ - double drand; - long ret; - - drand = (double) (read_random_bytes () & RAND_MAX) / (double) RAND_MAX; - drand *= (double) (max - min + 1); - /* On systems were this is not random() range is lower, we favor - * higher numbers of salt. */ - ret = (long) (max + 1 - drand); - /* And we catch limits, and use the highest number */ - if ((ret < min) || (ret > max)) { - ret = max; - } - return ret; -} -#endif /* USE_SHA_CRYPT || USE_BCRYPT */ #ifdef USE_SHA_CRYPT /* Return the the rounds number for the SHA crypt methods. */ @@ -245,7 +131,7 @@ static /*@observer@*/unsigned long SHA_get_salt_rounds (/*@null@*/const int *pre max_rounds = min_rounds; } - rounds = (unsigned long) shadow_random (min_rounds, max_rounds); + rounds = csrand_interval (min_rounds, max_rounds); } } else if (0 == *prefered_rounds) { rounds = SHA_ROUNDS_DEFAULT; @@ -318,7 +204,7 @@ static /*@observer@*/unsigned long BCRYPT_get_salt_rounds (/*@null@*/const int * max_rounds = min_rounds; } - rounds = (unsigned long) shadow_random (min_rounds, max_rounds); + rounds = csrand_interval (min_rounds, max_rounds); } } else if (0 == *prefered_rounds) { rounds = B_ROUNDS_DEFAULT; @@ -435,13 +321,13 @@ static /*@observer@*/const char *gensalt (size_t salt_size) { static char salt[MAX_SALT_SIZE + 6]; - memset (salt, '\0', MAX_SALT_SIZE + 6); + bzero(salt, MAX_SALT_SIZE + 6); assert (salt_size >= MIN_SALT_SIZE && salt_size <= MAX_SALT_SIZE); - strcat (salt, l64a (read_random_bytes ())); + strcat (salt, l64a (csrand ())); do { - strcat (salt, l64a (read_random_bytes ())); + strcat (salt, l64a (csrand ())); } while (strlen (salt) < salt_size); salt[salt_size] = '\0'; @@ -474,7 +360,7 @@ static /*@observer@*/const char *gensalt (size_t salt_size) const char *method; unsigned long rounds = 0; - memset (result, '\0', GENSALT_SETTING_SIZE); + bzero(result, GENSALT_SETTING_SIZE); if (NULL != meth) method = meth; @@ -493,26 +379,26 @@ static /*@observer@*/const char *gensalt (size_t salt_size) } else if (0 == strcmp (method, "BCRYPT")) { BCRYPTMAGNUM(result); salt_len = BCRYPT_SALT_SIZE; - rounds = BCRYPT_get_salt_rounds ((int *) arg); + rounds = BCRYPT_get_salt_rounds (arg); BCRYPT_salt_rounds_to_buf (result, rounds); #endif /* USE_BCRYPT */ #ifdef USE_YESCRYPT } else if (0 == strcmp (method, "YESCRYPT")) { MAGNUM(result, 'y'); salt_len = YESCRYPT_SALT_SIZE; - rounds = YESCRYPT_get_salt_cost ((int *) arg); + rounds = YESCRYPT_get_salt_cost (arg); YESCRYPT_salt_cost_to_buf (result, rounds); #endif /* USE_YESCRYPT */ #ifdef USE_SHA_CRYPT } else if (0 == strcmp (method, "SHA256")) { MAGNUM(result, '5'); salt_len = SHA_CRYPT_SALT_SIZE; - rounds = SHA_get_salt_rounds ((int *) arg); + rounds = SHA_get_salt_rounds (arg); SHA_salt_rounds_to_buf (result, rounds); } else if (0 == strcmp (method, "SHA512")) { MAGNUM(result, '6'); salt_len = SHA_CRYPT_SALT_SIZE; - rounds = SHA_get_salt_rounds ((int *) arg); + rounds = SHA_get_salt_rounds (arg); SHA_salt_rounds_to_buf (result, rounds); #endif /* USE_SHA_CRYPT */ } else if (0 != strcmp (method, "DES")) { @@ -522,7 +408,7 @@ static /*@observer@*/const char *gensalt (size_t salt_size) method); salt_len = MAX_SALT_SIZE; rounds = 0; - memset (result, '\0', GENSALT_SETTING_SIZE); + bzero(result, GENSALT_SETTING_SIZE); } #if USE_XCRYPT_GENSALT @@ -534,7 +420,7 @@ static /*@observer@*/const char *gensalt (size_t salt_size) /* Avoid -Wunused-but-set-variable. */ salt_len = GENSALT_SETTING_SIZE - 1; rounds = 0; - memset (result, '.', salt_len); + memset(result, '.', salt_len); result[salt_len] = '\0'; } diff --git a/lib/selinux.c b/lib/selinux.c index ad639bd..6eb2894 100644 --- a/lib/selinux.c +++ b/lib/selinux.c @@ -188,7 +188,7 @@ int check_selinux_permit (const char *perm_name) return 0; } - selinux_set_callback (SELINUX_CB_LOG, (union selinux_callback) selinux_log_cb); + selinux_set_callback (SELINUX_CB_LOG, (union selinux_callback) { .func_log = selinux_log_cb }); if (getprevcon_raw (&user_context_raw) != 0) { fprintf (shadow_logfd, @@ -206,5 +206,5 @@ int check_selinux_permit (const char *perm_name) } #else /* !WITH_SELINUX */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !WITH_SELINUX */ diff --git a/lib/semanage.c b/lib/semanage.c index 082a6e8..277e20e 100644 --- a/lib/semanage.c +++ b/lib/semanage.c @@ -16,19 +16,19 @@ #endif #include <stdio.h> #include <stdarg.h> + #include <selinux/selinux.h> + #include <semanage/semanage.h> + +#include "attr.h" #include "prototypes.h" #include "shadowlog_internal.h" -#ifndef DEFAULT_SERANGE -#define DEFAULT_SERANGE "s0" -#endif - format_attr(printf, 3, 4) -static void semanage_error_callback (unused void *varg, +static void semanage_error_callback (MAYBE_UNUSED void *varg, semanage_handle_t *handle, const char *fmt, ...) { @@ -101,6 +101,8 @@ static semanage_handle_t *semanage_init (void) return handle; fail: + if (handle) + semanage_disconnect (handle); semanage_handle_destroy (handle); return NULL; } @@ -109,7 +111,8 @@ fail: static int semanage_user_mod (semanage_handle_t *handle, semanage_seuser_key_t *key, const char *login_name, - const char *seuser_name) + const char *seuser_name, + const char *serange) { int ret; semanage_seuser_t *seuser = NULL; @@ -122,11 +125,12 @@ static int semanage_user_mod (semanage_handle_t *handle, goto done; } - if (semanage_mls_enabled(handle)) { - ret = semanage_seuser_set_mlsrange (handle, seuser, DEFAULT_SERANGE); + if (serange && semanage_mls_enabled(handle)) { + ret = semanage_seuser_set_mlsrange (handle, seuser, serange); if (ret != 0) { fprintf (shadow_logfd, - _("Could not set serange for %s\n"), login_name); + _("Could not set serange for %s to %s\n"), + login_name, serange); ret = 1; goto done; } @@ -158,9 +162,10 @@ done: static int semanage_user_add (semanage_handle_t *handle, - semanage_seuser_key_t *key, + const semanage_seuser_key_t *key, const char *login_name, - const char *seuser_name) + const char *seuser_name, + const char *serange) { int ret; semanage_seuser_t *seuser = NULL; @@ -181,11 +186,12 @@ static int semanage_user_add (semanage_handle_t *handle, goto done; } - if (semanage_mls_enabled(handle)) { - ret = semanage_seuser_set_mlsrange (handle, seuser, DEFAULT_SERANGE); + if (serange && semanage_mls_enabled(handle)) { + ret = semanage_seuser_set_mlsrange (handle, seuser, serange); if (ret != 0) { fprintf (shadow_logfd, - _("Could not set serange for %s\n"), login_name); + _("Could not set serange for %s to %s\n"), + login_name, serange); ret = 1; goto done; } @@ -216,7 +222,7 @@ done: } -int set_seuser (const char *login_name, const char *seuser_name) +int set_seuser (const char *login_name, const char *seuser_name, const char *serange) { semanage_handle_t *handle = NULL; semanage_seuser_key_t *key = NULL; @@ -250,7 +256,7 @@ int set_seuser (const char *login_name, const char *seuser_name) } if (0 != seuser_exists) { - ret = semanage_user_mod (handle, key, login_name, seuser_name); + ret = semanage_user_mod (handle, key, login_name, seuser_name, serange); if (ret != 0) { fprintf (shadow_logfd, _("Cannot modify SELinux user mapping\n")); @@ -258,7 +264,7 @@ int set_seuser (const char *login_name, const char *seuser_name) goto done; } } else { - ret = semanage_user_add (handle, key, login_name, seuser_name); + ret = semanage_user_add (handle, key, login_name, seuser_name, serange); if (ret != 0) { fprintf (shadow_logfd, _("Cannot add SELinux user mapping\n")); @@ -279,6 +285,8 @@ int set_seuser (const char *login_name, const char *seuser_name) done: semanage_seuser_key_free (key); + if (handle) + semanage_disconnect (handle); semanage_handle_destroy (handle); return ret; } @@ -353,9 +361,12 @@ int del_seuser (const char *login_name) ret = 0; done: + semanage_seuser_key_free (key); + if (handle) + semanage_disconnect (handle); semanage_handle_destroy (handle); return ret; } #else /* !WITH_SELINUX */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !WITH_SELINUX */ diff --git a/libmisc/setugid.c b/lib/setugid.c index 6dbe38e..6dbe38e 100644 --- a/libmisc/setugid.c +++ b/lib/setugid.c diff --git a/libmisc/setupenv.c b/lib/setupenv.c index 5d7aefa..c9b7f26 100644 --- a/libmisc/setupenv.c +++ b/lib/setupenv.c @@ -20,26 +20,25 @@ #include <sys/stat.h> #include <stdio.h> #include <ctype.h> + +#include "alloc.h" #include "prototypes.h" #include "defines.h" #include <pwd.h> #include "getdef.h" #include "shadowlog.h" +#include "string/sprintf.h" + #ifndef USE_PAM static void -addenv_path (const char *varname, const char *dirname, const char *filename) +addenv_path(const char *varname, const char *dirname, const char *filename) { - char *buf; - size_t len = strlen (dirname) + strlen (filename) + 2; - int wlen; - - buf = xmalloc (len); - wlen = snprintf (buf, len, "%s/%s", dirname, filename); - assert (wlen == (int) len - 1); + char *buf; - addenv (varname, buf); - free (buf); + xasprintf(&buf, "%s/%s", dirname, filename); + addenv(varname, buf); + free(buf); } static void read_env_file (const char *filename) @@ -61,7 +60,7 @@ static void read_env_file (const char *filename) cp = buf; /* ignore whitespace and comments */ - while (('\0' != *cp) && isspace (*cp)) { + while (isspace (*cp)) { cp++; } if (('\0' == *cp) || ('#' == *cp)) { @@ -194,8 +193,6 @@ void setup_env (struct passwd *info) */ if (chdir (info->pw_dir) == -1) { - static char temp_pw_dir[] = "/"; - if (!getdef_bool ("DEFAULT_HOME") || chdir ("/") == -1) { fprintf (log_get_logfd(), _("Unable to cd to '%s'\n"), info->pw_dir); @@ -207,7 +204,7 @@ void setup_env (struct passwd *info) } (void) puts (_("No directory, logging in with HOME=/")); free (info->pw_dir); - info->pw_dir = xstrdup (temp_pw_dir); + info->pw_dir = xstrdup ("/"); } /* @@ -221,10 +218,8 @@ void setup_env (struct passwd *info) */ if ((NULL == info->pw_shell) || ('\0' == *info->pw_shell)) { - static char temp_pw_shell[] = SHELL; - free (info->pw_shell); - info->pw_shell = xstrdup (temp_pw_shell); + info->pw_shell = xstrdup (SHELL); } addenv ("SHELL", info->pw_shell); diff --git a/lib/sgetgrent.c b/lib/sgetgrent.c index ad4fcc8..6cde15c 100644 --- a/lib/sgetgrent.c +++ b/lib/sgetgrent.c @@ -14,6 +14,9 @@ #include <stdio.h> #include <sys/types.h> #include <grp.h> +#include <string.h> + +#include "alloc.h" #include "defines.h" #include "prototypes.h" @@ -25,19 +28,15 @@ * list() converts the comma-separated list of member names into * an array of character pointers. * - * WARNING: I profiled this once with and without strchr() calls - * and found that using a register variable and an explicit loop - * works best. For large /etc/group files, this is a major win. - * * FINALLY added dynamic allocation. Still need to fix sgetsgent(). * --marekm */ -static char **list (char *s) +static char ** +list(char *s) { - static char **members = 0; - static int size = 0; /* max members + 1 */ - int i; - char **rbuf; + static char **members = NULL; + static size_t size = 0; /* max members + 1 */ + size_t i; i = 0; for (;;) { @@ -45,40 +44,24 @@ static char **list (char *s) member name, or terminating NULL). */ if (i >= size) { size = i + 100; /* at least: i + 1 */ - if (members) { - rbuf = - realloc (members, size * sizeof (char *)); - } else { - /* for old (before ANSI C) implementations of - realloc() that don't handle NULL properly */ - rbuf = malloc (size * sizeof (char *)); - } - if (!rbuf) { - free (members); - members = 0; + members = REALLOCF(members, size, char *); + if (!members) { size = 0; - return (char **) 0; + return NULL; } - members = rbuf; } if (!s || s[0] == '\0') break; - members[i++] = s; - while (('\0' != *s) && (',' != *s)) { - s++; - } - if ('\0' != *s) { - *s++ = '\0'; - } + members[i++] = strsep(&s, ","); } - members[i] = (char *) 0; + members[i] = NULL; return members; } struct group *sgetgrent (const char *buf) { - static char *grpbuf = 0; + static char *grpbuf = NULL; static size_t size = 0; static char *grpfields[NFIELDS]; static struct group grent; @@ -90,10 +73,10 @@ struct group *sgetgrent (const char *buf) allocate a larger block */ free (grpbuf); size = strlen (buf) + 1000; /* at least: strlen(buf) + 1 */ - grpbuf = malloc (size); - if (!grpbuf) { + grpbuf = MALLOC(size, char); + if (grpbuf == NULL) { size = 0; - return 0; + return NULL; } } strcpy (grpbuf, buf); @@ -103,25 +86,20 @@ struct group *sgetgrent (const char *buf) *cp = '\0'; } - for (cp = grpbuf, i = 0; (i < NFIELDS) && (NULL != cp); i++) { - grpfields[i] = cp; - cp = strchr (cp, ':'); - if (NULL != cp) { - *cp = '\0'; - cp++; - } - } + for (cp = grpbuf, i = 0; (i < NFIELDS) && (NULL != cp); i++) + grpfields[i] = strsep(&cp, ":"); + if (i < (NFIELDS - 1) || *grpfields[2] == '\0' || cp != NULL) { - return (struct group *) 0; + return NULL; } grent.gr_name = grpfields[0]; grent.gr_passwd = grpfields[1]; - if (get_gid (grpfields[2], &grent.gr_gid) == 0) { - return (struct group *) 0; + if (get_gid(grpfields[2], &grent.gr_gid) == -1) { + return NULL; } grent.gr_mem = list (grpfields[3]); if (NULL == grent.gr_mem) { - return (struct group *) 0; /* out of memory */ + return NULL; /* out of memory */ } return &grent; diff --git a/lib/sgetpwent.c b/lib/sgetpwent.c index 1c8c63e..75c9177 100644 --- a/lib/sgetpwent.c +++ b/lib/sgetpwent.c @@ -12,9 +12,11 @@ #ident "$Id$" #include <sys/types.h> -#include "defines.h" #include <stdio.h> #include <pwd.h> +#include <string.h> + +#include "defines.h" #include "prototypes.h" #include "shadowlog_internal.h" @@ -32,7 +34,8 @@ * performance reasons. I am going to come up with some conditional * compilation glarp to improve on this in the future. */ -struct passwd *sgetpwent (const char *buf) +struct passwd * +sgetpwent(const char *buf) { static struct passwd pwent; static char pwdbuf[PASSWD_ENTRY_MAX_LENGTH]; @@ -58,19 +61,8 @@ struct passwd *sgetpwent (const char *buf) * field. The fields are converted into NUL terminated strings. */ - for (cp = pwdbuf, i = 0; (i < NFIELDS) && (NULL != cp); i++) { - fields[i] = cp; - while (('\0' != *cp) && (':' != *cp)) { - cp++; - } - - if ('\0' != *cp) { - *cp = '\0'; - cp++; - } else { - cp = NULL; - } - } + for (cp = pwdbuf, i = 0; (i < NFIELDS) && (NULL != cp); i++) + fields[i] = strsep(&cp, ":"); /* something at the end, columns over shot */ if ( cp != NULL ) { @@ -94,10 +86,10 @@ struct passwd *sgetpwent (const char *buf) pwent.pw_name = fields[0]; pwent.pw_passwd = fields[1]; - if (get_uid (fields[2], &pwent.pw_uid) == 0) { + if (get_uid(fields[2], &pwent.pw_uid) == -1) { return NULL; } - if (get_gid (fields[3], &pwent.pw_gid) == 0) { + if (get_gid(fields[3], &pwent.pw_gid) == -1) { return NULL; } pwent.pw_gecos = fields[4]; diff --git a/lib/sgetspent.c b/lib/sgetspent.c index f1d4b20..bd2ef8b 100644 --- a/lib/sgetspent.c +++ b/lib/sgetspent.c @@ -14,17 +14,26 @@ #ident "$Id$" +#include <stddef.h> +#include <stdio.h> #include <sys/types.h> +#include <string.h> + +#include "atoi/str2i.h" #include "prototypes.h" #include "shadowlog_internal.h" #include "defines.h" -#include <stdio.h> + + #define FIELDS 9 #define OFIELDS 5 + + /* * sgetspent - convert string in shadow file format to (struct spwd *) */ -struct spwd *sgetspent (const char *string) +struct spwd * +sgetspent(const char *string) { static char spwbuf[PASSWD_ENTRY_MAX_LENGTH]; static struct spwd spwd; @@ -41,7 +50,7 @@ struct spwd *sgetspent (const char *string) fprintf (shadow_logfd, "%s: Too long passwd entry encountered, file corruption?\n", shadow_progname); - return 0; /* fail if too long */ + return NULL; /* fail if too long */ } strcpy (spwbuf, string); @@ -57,9 +66,7 @@ struct spwd *sgetspent (const char *string) for (cp = spwbuf, i = 0; ('\0' != *cp) && (i < FIELDS); i++) { fields[i] = cp; - while (('\0' != *cp) && (':' != *cp)) { - cp++; - } + cp = strchrnul(cp, ':'); if ('\0' != *cp) { *cp = '\0'; @@ -67,13 +74,12 @@ struct spwd *sgetspent (const char *string) } } - if (i == (FIELDS - 1)) { - fields[i++] = cp; - } + if (i == (FIELDS - 1)) + fields[i++] = ""; if ( ((NULL != cp) && ('\0' != *cp)) || ((i != FIELDS) && (i != OFIELDS)) ) { - return 0; + return NULL; } /* @@ -92,9 +98,9 @@ struct spwd *sgetspent (const char *string) if (fields[2][0] == '\0') { spwd.sp_lstchg = -1; - } else if ( (getlong (fields[2], &spwd.sp_lstchg) == 0) + } else if ( (str2sl(&spwd.sp_lstchg, fields[2]) == -1) || (spwd.sp_lstchg < 0)) { - return 0; + return NULL; } /* @@ -103,9 +109,9 @@ struct spwd *sgetspent (const char *string) if (fields[3][0] == '\0') { spwd.sp_min = -1; - } else if ( (getlong (fields[3], &spwd.sp_min) == 0) + } else if ( (str2sl(&spwd.sp_min, fields[3]) == -1) || (spwd.sp_min < 0)) { - return 0; + return NULL; } /* @@ -114,9 +120,9 @@ struct spwd *sgetspent (const char *string) if (fields[4][0] == '\0') { spwd.sp_max = -1; - } else if ( (getlong (fields[4], &spwd.sp_max) == 0) + } else if ( (str2sl(&spwd.sp_max, fields[4]) == -1) || (spwd.sp_max < 0)) { - return 0; + return NULL; } /* @@ -139,9 +145,9 @@ struct spwd *sgetspent (const char *string) if (fields[5][0] == '\0') { spwd.sp_warn = -1; - } else if ( (getlong (fields[5], &spwd.sp_warn) == 0) + } else if ( (str2sl(&spwd.sp_warn, fields[5]) == -1) || (spwd.sp_warn < 0)) { - return 0; + return NULL; } /* @@ -151,9 +157,9 @@ struct spwd *sgetspent (const char *string) if (fields[6][0] == '\0') { spwd.sp_inact = -1; - } else if ( (getlong (fields[6], &spwd.sp_inact) == 0) + } else if ( (str2sl(&spwd.sp_inact, fields[6]) == -1) || (spwd.sp_inact < 0)) { - return 0; + return NULL; } /* @@ -163,9 +169,9 @@ struct spwd *sgetspent (const char *string) if (fields[7][0] == '\0') { spwd.sp_expire = -1; - } else if ( (getlong (fields[7], &spwd.sp_expire) == 0) + } else if ( (str2sl(&spwd.sp_expire, fields[7]) == -1) || (spwd.sp_expire < 0)) { - return 0; + return NULL; } /* @@ -175,13 +181,12 @@ struct spwd *sgetspent (const char *string) if (fields[8][0] == '\0') { spwd.sp_flag = SHADOW_SP_FLAG_UNSET; - } else if (getulong (fields[8], &spwd.sp_flag) == 0) { - return 0; + } else if (str2ul(&spwd.sp_flag, fields[8]) == -1) { + return NULL; } return (&spwd); } #else -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif - diff --git a/lib/sgroupio.c b/lib/sgroupio.c index 871749b..0297df4 100644 --- a/lib/sgroupio.c +++ b/lib/sgroupio.c @@ -14,10 +14,12 @@ #ident "$Id$" +#include "alloc.h" #include "prototypes.h" #include "defines.h" #include "commonio.h" #include "getdef.h" +#include "memzero.h" #include "sgroupio.h" /*@null@*/ /*@only@*/struct sgrp *__sgr_dup (const struct sgrp *sgent) @@ -25,13 +27,12 @@ struct sgrp *sg; int i; - sg = (struct sgrp *) malloc (sizeof *sg); + sg = CALLOC (1, struct sgrp); if (NULL == sg) { return NULL; } /* Do the same as the other _dup function, even if we know the * structure. */ - memset (sg, 0, sizeof *sg); /*@-mustfreeonly@*/ sg->sg_name = strdup (sgent->sg_name); /*@=mustfreeonly@*/ @@ -50,7 +51,7 @@ for (i = 0; NULL != sgent->sg_adm[i]; i++); /*@-mustfreeonly@*/ - sg->sg_adm = (char **) malloc ((i + 1) * sizeof (char *)); + sg->sg_adm = MALLOC(i + 1, char *); /*@=mustfreeonly@*/ if (NULL == sg->sg_adm) { free (sg->sg_passwd); @@ -75,7 +76,7 @@ for (i = 0; NULL != sgent->sg_mem[i]; i++); /*@-mustfreeonly@*/ - sg->sg_mem = (char **) malloc ((i + 1) * sizeof (char *)); + sg->sg_mem = MALLOC(i + 1, char *); /*@=mustfreeonly@*/ if (NULL == sg->sg_mem) { for (i = 0; NULL != sg->sg_adm[i]; i++) { @@ -116,14 +117,16 @@ static /*@null@*/ /*@only@*/void *gshadow_dup (const void *ent) return __sgr_dup (sg); } -static void gshadow_free (/*@out@*/ /*@only@*/void *ent) +static void +gshadow_free(/*@only@*/void *ent) { struct sgrp *sg = ent; sgr_free (sg); } -void sgr_free (/*@out@*/ /*@only@*/struct sgrp *sgent) +void +sgr_free(/*@only@*/struct sgrp *sgent) { size_t i; free (sgent->sg_name); @@ -151,7 +154,7 @@ static const char *gshadow_getname (const void *ent) static void *gshadow_parse (const char *line) { - return (void *) sgetsgent (line); + return sgetsgent (line); } static int gshadow_put (const void *ent, FILE * file) @@ -253,7 +256,7 @@ int sgr_open (int mode) int sgr_update (const struct sgrp *sg) { - return commonio_update (&gshadow_db, (const void *) sg); + return commonio_update (&gshadow_db, sg); } int sgr_remove (const char *name) @@ -302,5 +305,5 @@ int sgr_sort () return commonio_sort_wrt (&gshadow_db, __gr_get_db ()); } #else -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif diff --git a/lib/shadow.c b/lib/shadow.c index b628b65..f17d09e 100644 --- a/lib/shadow.c +++ b/lib/shadow.c @@ -18,54 +18,15 @@ #include "prototypes.h" #include "defines.h" #include <stdio.h> -#ifdef USE_NIS -static bool nis_used; -static bool nis_ignore; -static enum { native, start, middle, native2 } nis_state; -static bool nis_bound; -static char *nis_domain; -static char *nis_key; -static int nis_keylen; -static char *nis_val; -static int nis_vallen; - -#define IS_NISCHAR(c) ((c)=='+') -#endif + +#include "atoi/str2i.h" + static FILE *shadow; #define FIELDS 9 #define OFIELDS 5 -#ifdef USE_NIS - -/* - * __setspNIS - turn on or off NIS searches - */ - -void __setspNIS (bool flag) -{ - nis_ignore = !flag; - - if (nis_ignore) { - nis_used = false; - } -} - -/* - * bind_nis - bind to NIS server - */ - -static int bind_nis (void) -{ - if (yp_get_default_domain (&nis_domain)) { - return -1; - } - - nis_bound = true; - return 0; -} -#endif /* * setspent - initialize access to shadow text and DBM files @@ -78,10 +39,6 @@ void setspent (void) }else { shadow = fopen (SHADOW_FILE, "r"); } - -#ifdef USE_NIS - nis_state = native; -#endif } /* @@ -94,7 +51,7 @@ void endspent (void) (void) fclose (shadow); } - shadow = (FILE *) 0; + shadow = NULL; } /* @@ -150,11 +107,6 @@ static struct spwd *my_sgetspent (const char *string) */ spwd.sp_namp = fields[0]; -#ifdef USE_NIS - if (IS_NISCHAR (fields[0][0])) { - nis_used = true; - } -#endif spwd.sp_pwdp = fields[1]; /* @@ -166,16 +118,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[2][0] == '\0') { spwd.sp_lstchg = -1; } else { - if (getlong (fields[2], &spwd.sp_lstchg) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_lstchg = -1; - } else -#endif - return 0; - } else if (spwd.sp_lstchg < 0) { + if (str2sl(&spwd.sp_lstchg, fields[2]) == -1) + return 0; + if (spwd.sp_lstchg < 0) return 0; - } } /* @@ -185,18 +131,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[3][0] == '\0') { spwd.sp_min = -1; } else { - if (getlong (fields[3], &spwd.sp_min) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_min = -1; - } else -#endif - { - return 0; - } - } else if (spwd.sp_min < 0) { + if (str2sl(&spwd.sp_min, fields[3]) == -1) + return 0; + if (spwd.sp_min < 0) return 0; - } } /* @@ -206,16 +144,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[4][0] == '\0') { spwd.sp_max = -1; } else { - if (getlong (fields[4], &spwd.sp_max) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_max = -1; - } else -#endif - return 0; - } else if (spwd.sp_max < 0) { + if (str2sl(&spwd.sp_max, fields[4]) == -1) + return 0; + if (spwd.sp_max < 0) return 0; - } } /* @@ -239,18 +171,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[5][0] == '\0') { spwd.sp_warn = -1; } else { - if (getlong (fields[5], &spwd.sp_warn) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_warn = -1; - } else -#endif - { - return 0; - } - } else if (spwd.sp_warn < 0) { + if (str2sl(&spwd.sp_warn, fields[5]) == -1) + return 0; + if (spwd.sp_warn < 0) return 0; - } } /* @@ -261,18 +185,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[6][0] == '\0') { spwd.sp_inact = -1; } else { - if (getlong (fields[6], &spwd.sp_inact) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_inact = -1; - } else -#endif - { - return 0; - } - } else if (spwd.sp_inact < 0) { + if (str2sl(&spwd.sp_inact, fields[6]) == -1) + return 0; + if (spwd.sp_inact < 0) return 0; - } } /* @@ -283,18 +199,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[7][0] == '\0') { spwd.sp_expire = -1; } else { - if (getlong (fields[7], &spwd.sp_expire) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_expire = -1; - } else -#endif - { - return 0; - } - } else if (spwd.sp_expire < 0) { + if (str2sl(&spwd.sp_expire, fields[7]) == -1) + return 0; + if (spwd.sp_expire < 0) return 0; - } } /* @@ -305,18 +213,10 @@ static struct spwd *my_sgetspent (const char *string) if (fields[8][0] == '\0') { spwd.sp_flag = SHADOW_SP_FLAG_UNSET; } else { - if (getulong (fields[8], &spwd.sp_flag) == 0) { -#ifdef USE_NIS - if (nis_used) { - spwd.sp_flag = SHADOW_SP_FLAG_UNSET; - } else -#endif - { - return 0; - } - } else if (spwd.sp_flag < 0) { + if (str2ul(&spwd.sp_flag, fields[8]) == -1) + return 0; + if (spwd.sp_flag < 0) return 0; - } } return (&spwd); @@ -335,21 +235,12 @@ struct spwd *fgetspent (FILE * fp) return (0); } -#ifdef USE_NIS - while (fgets (buf, (int) sizeof buf, fp) != (char *) 0) -#else - if (fgets (buf, (int) sizeof buf, fp) != (char *) 0) -#endif + if (fgets (buf, sizeof buf, fp) != NULL) { cp = strchr (buf, '\n'); if (NULL != cp) { *cp = '\0'; } -#ifdef USE_NIS - if (nis_ignore && IS_NISCHAR (buf[0])) { - continue; - } -#endif return my_sgetspent (buf); } return 0; @@ -361,92 +252,10 @@ struct spwd *fgetspent (FILE * fp) struct spwd *getspent (void) { -#ifdef USE_NIS - int nis_1_user = 0; - struct spwd *val; -#endif if (NULL == shadow) { setspent (); } - -#ifdef USE_NIS - again: - /* - * See if we are reading from the local file. - */ - - if (nis_state == native || nis_state == native2) { - - /* - * Get the next entry from the shadow file. Return NULL - * right away if there is none. - */ - - val = fgetspent (shadow); - if (NULL == val) - return 0; - - /* - * If this entry began with a NIS escape character, we have - * to see if this is just a single user, or if the entire - * map is being asked for. - */ - - if (IS_NISCHAR (val->sp_namp[0])) { - if (val->sp_namp[1]) - nis_1_user = 1; - else - nis_state = start; - } - - /* - * If this isn't a NIS user and this isn't an escape to go - * use a NIS map, it must be a regular local user. - */ - - if (nis_1_user == 0 && nis_state != start) - return val; - - /* - * If this is an escape to use an NIS map, switch over to - * that bunch of code. - */ - - if (nis_state == start) - goto again; - - /* - * NEEDSWORK. Here we substitute pieces-parts of this entry. - */ - - return 0; - } else { - if (!nis_bound) { - if (bind_nis ()) { - nis_state = native2; - goto again; - } - } - if (nis_state == start) { - if (yp_first (nis_domain, "shadow.bynam", &nis_key, - &nis_keylen, &nis_val, &nis_vallen)) { - nis_state = native2; - goto again; - } - nis_state = middle; - } else if (nis_state == middle) { - if (yp_next (nis_domain, "shadow.bynam", nis_key, - nis_keylen, &nis_key, &nis_keylen, - &nis_val, &nis_vallen)) { - nis_state = native2; - goto again; - } - } - return my_sgetspent (nis_val); - } -#else return (fgetspent (shadow)); -#endif } /* @@ -457,74 +266,16 @@ struct spwd *getspnam (const char *name) { struct spwd *sp; -#ifdef USE_NIS - static char save_name[16]; - bool nis_disabled = false; -#endif - setspent (); -#ifdef USE_NIS - /* - * Search the shadow.byname map for this user. - */ - - if (!nis_ignore && !nis_bound) { - bind_nis (); - } - - if (!nis_ignore && nis_bound) { - char *cp; - - if (yp_match (nis_domain, "shadow.byname", name, - strlen (name), &nis_val, &nis_vallen) == 0) { - - cp = strchr (nis_val, '\n'); - if (NULL != cp) { - *cp = '\0'; - } - - nis_state = middle; - sp = my_sgetspent (nis_val); - if (NULL != sp) { - strcpy (save_name, sp->sp_namp); - nis_key = save_name; - nis_keylen = strlen (save_name); - } - endspent (); - return sp; - } else { - nis_state = native2; - } - } -#endif -#ifdef USE_NIS - /* - * NEEDSWORK -- this is a mess, and it is the same mess in the - * other three files. I can't just blindly turn off NIS because - * this might be the first pass through the local files. In - * that case, I never discover that NIS is present. - */ - - if (nis_used) { - nis_ignore = true; - nis_disabled = true; - } -#endif - while ((sp = getspent ()) != (struct spwd *) 0) { + while ((sp = getspent ()) != NULL) { if (strcmp (name, sp->sp_namp) == 0) { break; } } -#ifdef USE_NIS - if (nis_disabled) { - nis_ignore = false; - } -#endif endspent (); return (sp); } #else -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif - diff --git a/lib/shadowio.c b/lib/shadowio.c index 683b6c8..d2c3b47 100644 --- a/lib/shadowio.c +++ b/lib/shadowio.c @@ -31,7 +31,8 @@ static /*@null@*/ /*@only@*/void *shadow_dup (const void *ent) return __spw_dup (sp); } -static void shadow_free (/*@out@*//*@only@*/void *ent) +static void +shadow_free(/*@only@*/void *ent) { struct spwd *sp = ent; @@ -47,7 +48,7 @@ static const char *shadow_getname (const void *ent) static void *shadow_parse (const char *line) { - return (void *) sgetspent (line); + return sgetspent (line); } static int shadow_put (const void *ent, FILE * file) @@ -164,7 +165,7 @@ int spw_open (int mode) int spw_update (const struct spwd *sp) { - return commonio_update (&shadow_db, (const void *) sp); + return commonio_update (&shadow_db, sp); } int spw_remove (const char *name) diff --git a/lib/shadowlog_internal.h b/lib/shadowlog_internal.h index 72a0e0c..f972a3c 100644 --- a/lib/shadowlog_internal.h +++ b/lib/shadowlog_internal.h @@ -2,6 +2,6 @@ #define _SHADOWLOG_INTERNAL_H extern const char *shadow_progname; /* Program name showed in error messages */ -extern FILE *shadow_logfd; /* file descripter to which error messages are printed */ +extern FILE *shadow_logfd; /* file descriptor to which error messages are printed */ #endif /* _SHADOWLOG_INTERNAL_H */ diff --git a/lib/shadowmem.c b/lib/shadowmem.c index 82f99e7..9d8f193 100644 --- a/lib/shadowmem.c +++ b/lib/shadowmem.c @@ -16,18 +16,20 @@ #include "defines.h" #include <shadow.h> #include <stdio.h> + +#include "alloc.h" +#include "memzero.h" #include "shadowio.h" /*@null@*/ /*@only@*/struct spwd *__spw_dup (const struct spwd *spent) { struct spwd *sp; - sp = (struct spwd *) malloc (sizeof *sp); + sp = CALLOC (1, struct spwd); if (NULL == sp) { return NULL; } /* The libc might define other fields. They won't be copied. */ - memset (sp, 0, sizeof *sp); sp->sp_lstchg = spent->sp_lstchg; sp->sp_min = spent->sp_min; sp->sp_max = spent->sp_max; @@ -54,7 +56,8 @@ return sp; } -void spw_free (/*@out@*/ /*@only@*/struct spwd *spent) +void +spw_free(/*@only@*/struct spwd *spent) { if (spent != NULL) { free (spent->sp_namp); diff --git a/libmisc/shell.c b/lib/shell.c index 7c67500..25ef3e3 100644 --- a/libmisc/shell.c +++ b/lib/shell.c @@ -15,6 +15,9 @@ #include <errno.h> #include "prototypes.h" #include "defines.h" +#include "string/sprintf.h" + + extern char **newenvp; extern size_t newenvc; @@ -30,10 +33,10 @@ extern size_t newenvc; int shell (const char *file, /*@null@*/const char *arg, char *const envp[]) { - char arg0[1024]; - int err; + int err; + char arg0[1024]; - if (file == (char *) 0) { + if (file == NULL) { errno = EINVAL; return errno; } @@ -44,9 +47,8 @@ int shell (const char *file, /*@null@*/const char *arg, char *const envp[]) * that. So, we determine the 0'th entry only if they * don't want to tell us what it is themselves. */ - if (arg == (char *) 0) { - (void) snprintf (arg0, sizeof arg0, "-%s", Basename (file)); - arg0[sizeof arg0 - 1] = '\0'; + if (arg == NULL) { + SNPRINTF(arg0, "-%s", Basename(file)); arg = arg0; } @@ -55,7 +57,7 @@ int shell (const char *file, /*@null@*/const char *arg, char *const envp[]) * able to figure out what we are up to without too much * grief. */ - (void) execle (file, arg, (char *) 0, envp); + (void) execle (file, arg, (char *) NULL, envp); err = errno; if (access (file, R_OK|X_OK) == 0) { @@ -63,7 +65,7 @@ int shell (const char *file, /*@null@*/const char *arg, char *const envp[]) * Assume this is a shell script (with no shebang). * Interpret it with /bin/sh */ - (void) execle (SHELL, "sh", "-", file, (char *)0, envp); + (void) execle (SHELL, "sh", "-", file, (char *) NULL, envp); err = errno; } @@ -72,7 +74,7 @@ int shell (const char *file, /*@null@*/const char *arg, char *const envp[]) * how to execute this stupid shell, so I might as well give * up in disgust ... */ - (void) snprintf (arg0, sizeof arg0, _("Cannot execute %s"), file); + SNPRINTF(arg0, _("Cannot execute %s"), file); errno = err; perror (arg0); return err; diff --git a/lib/sizeof.h b/lib/sizeof.h new file mode 100644 index 0000000..6847068 --- /dev/null +++ b/lib/sizeof.h @@ -0,0 +1,25 @@ +/* + * SPDX-FileCopyrightText: 2022-2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIBMISC_SIZEOF_H_ +#define SHADOW_INCLUDE_LIBMISC_SIZEOF_H_ + + +#include <config.h> + +#include <limits.h> + +#include "must_be.h" + + +#define memberof(T, member) ((T){}.member) +#define WIDTHOF(x) (sizeof(x) * CHAR_BIT) +#define SIZEOF_ARRAY(a) (sizeof(a) + must_be_array(a)) +#define NITEMS(a) (SIZEOF_ARRAY((a)) / sizeof((a)[0])) +#define STRLEN(s) (NITEMS(s) - 1) + + +#endif // include guard diff --git a/lib/spawn.c b/lib/spawn.c index ce1a97d..57a4121 100644 --- a/lib/spawn.c +++ b/lib/spawn.c @@ -17,8 +17,9 @@ #include "shadowlog_internal.h" -int run_command (const char *cmd, const char *argv[], - /*@null@*/const char *envp[], /*@out@*/int *status) +int +run_command(const char *cmd, const char *argv[], + /*@null@*/const char *envp[], int *restrict status) { pid_t pid, wpid; @@ -4,8 +4,11 @@ #ifdef USE_SSSD #include <stdio.h> +#include <sys/stat.h> #include <sys/wait.h> #include <sys/types.h> + +#include "alloc.h" #include "exitcodes.h" #include "defines.h" #include "prototypes.h" @@ -19,12 +22,17 @@ int sssd_flush_cache (int dbflags) { int status, code, rv; const char *cmd = "/usr/sbin/sss_cache"; + struct stat sb; char *sss_cache_args = NULL; const char *spawnedArgs[] = {"sss_cache", NULL, NULL}; const char *spawnedEnv[] = {NULL}; int i = 0; - sss_cache_args = malloc(4); + rv = stat(cmd, &sb); + if (rv == -1 && errno == ENOENT) + return 0; + + sss_cache_args = MALLOC(4, char); if (sss_cache_args == NULL) { return -1; } @@ -70,6 +78,6 @@ int sssd_flush_cache (int dbflags) return 0; } #else /* USE_SSSD */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* USE_SSSD */ diff --git a/lib/string/sprintf.c b/lib/string/sprintf.c new file mode 100644 index 0000000..cf3c210 --- /dev/null +++ b/lib/string/sprintf.c @@ -0,0 +1,24 @@ +/* + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#ident "$Id$" + +#include "string/sprintf.h" + +#include <stdarg.h> +#include <stddef.h> +#include <stdio.h> + + +extern inline int xasprintf(char **restrict s, const char *restrict fmt, ...); +extern inline int xvasprintf(char **restrict s, const char *restrict fmt, + va_list ap); + +extern inline int snprintf_(char *restrict s, size_t size, + const char *restrict fmt, ...); +extern inline int vsnprintf_(char *restrict s, size_t size, + const char *restrict fmt, va_list ap); diff --git a/lib/string/sprintf.h b/lib/string/sprintf.h new file mode 100644 index 0000000..7485369 --- /dev/null +++ b/lib/string/sprintf.h @@ -0,0 +1,97 @@ +/* + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_SPRINTF_H_ +#define SHADOW_INCLUDE_LIB_SPRINTF_H_ + + +#include <config.h> + +#include <stdarg.h> +#include <stddef.h> +#include <stdio.h> + +#include "attr.h" +#include "defines.h" +#include "sizeof.h" + + +#define SNPRINTF(s, fmt, ...) \ + snprintf_(s, NITEMS(s), fmt __VA_OPT__(,) __VA_ARGS__) + + +format_attr(printf, 2, 3) +inline int xasprintf(char **restrict s, const char *restrict fmt, ...); +format_attr(printf, 2, 0) +inline int xvasprintf(char **restrict s, const char *restrict fmt, va_list ap); + +format_attr(printf, 3, 4) +inline int snprintf_(char *restrict s, size_t size, const char *restrict fmt, + ...); +format_attr(printf, 3, 0) +inline int vsnprintf_(char *restrict s, size_t size, const char *restrict fmt, + va_list ap); + + +inline int +xasprintf(char **restrict s, const char *restrict fmt, ...) +{ + int len; + va_list ap; + + va_start(ap, fmt); + len = xvasprintf(s, fmt, ap); + va_end(ap); + + return len; +} + + +inline int +xvasprintf(char **restrict s, const char *restrict fmt, va_list ap) +{ + int len; + + len = vasprintf(s, fmt, ap); + if (len == -1) { + perror("asprintf"); + exit(EXIT_FAILURE); + } + + return len; +} + + +inline int +snprintf_(char *restrict s, size_t size, const char *restrict fmt, ...) +{ + int len; + va_list ap; + + va_start(ap, fmt); + len = vsnprintf_(s, size, fmt, ap); + va_end(ap); + + return len; +} + + +inline int +vsnprintf_(char *restrict s, size_t size, const char *restrict fmt, va_list ap) +{ + int len; + + len = vsnprintf(s, size, fmt, ap); + if (len == -1) + return -1; + if ((size_t) len >= size) + return -1; + + return len; +} + + +#endif // include guard diff --git a/lib/string/stpecpy.c b/lib/string/stpecpy.c new file mode 100644 index 0000000..9759388 --- /dev/null +++ b/lib/string/stpecpy.c @@ -0,0 +1,20 @@ +/* + * SPDX-FileCopyrightText: 2022 - 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#if !defined(HAVE_STPECPY) + +#ident "$Id$" + +#include "string/stpecpy.h" + + +extern inline char *stpecpy(char *dst, char *end, const char *restrict src); + + +#endif // !HAVE_STPECPY diff --git a/lib/string/stpecpy.h b/lib/string/stpecpy.h new file mode 100644 index 0000000..2324baa --- /dev/null +++ b/lib/string/stpecpy.h @@ -0,0 +1,90 @@ +/* + * SPDX-FileCopyrightText: 2022 - 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_STPECPY_H_ +#define SHADOW_INCLUDE_LIB_STPECPY_H_ + + +#include <config.h> + +#if !defined(HAVE_STPECPY) + +#include <stdbool.h> +#include <stddef.h> +#include <string.h> + +#include "attr.h" + + +ATTR_STRING(3) +inline char *stpecpy(char *dst, char *end, const char *restrict src); + + +/* + * SYNOPSIS + * [[gnu::null_terminated_string_arg(3)]] + * char *_Nullable stpecpy(char *_Nullable dst, char end[0], + * const char *restrict src); + * + * ARGUMENTS + * dst Destination buffer where to copy a string. + * + * end Pointer to one after the last element of the buffer + * pointed to by `dst`. Usually, it should be calculated + * as `dst + NITEMS(dst)`. + * + * src Source string to be copied into dst. + * + * DESCRIPTION + * This function copies the string pointed to by src, into a string + * at the buffer pointed to by dst. If the destination buffer, + * limited by a pointer to its end --one after its last element--, + * isn't large enough to hold the copy, the resulting string is + * truncated. + * + * This function can be chained with calls to [v]stpeprintf(). + * + * RETURN VALUE + * dst + strlen(dst) + * • On success, this function returns a pointer to the + * terminating NUL byte. + * + * end + * • If this call truncated the resulting string. + * • If `dst == end` (a previous chained call to these + * functions truncated). + * NULL + * • If `dst == NULL` (a previous chained call to + * [v]stpeprintf() failed). + * + * ERRORS + * This function doesn't set errno. + */ + + +inline char * +stpecpy(char *dst, char *end, const char *restrict src) +{ + bool trunc; + size_t dsize, dlen, slen; + + if (dst == end) + return end; + if (dst == NULL) + return NULL; + + dsize = end - dst; + slen = strnlen(src, dsize); + trunc = (slen == dsize); + dlen = slen - trunc; + + return stpcpy(mempcpy(dst, src, dlen), "") + trunc; +} + + +#endif // !HAVE_STPECPY +#endif // include guard diff --git a/lib/string/stpeprintf.c b/lib/string/stpeprintf.c new file mode 100644 index 0000000..cecd95d --- /dev/null +++ b/lib/string/stpeprintf.c @@ -0,0 +1,25 @@ +/* + * SPDX-FileCopyrightText: 2022 - 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#if !defined(HAVE_STPEPRINTF) + +#ident "$Id$" + +#include "string/stpeprintf.h" + +#include <stdarg.h> + + +extern inline char *stpeprintf(char *dst, char *end, const char *restrict fmt, + ...); +extern inline char *vstpeprintf(char *dst, char *end, const char *restrict fmt, + va_list ap); + + +#endif // !HAVE_STPEPRINTF diff --git a/lib/string/stpeprintf.h b/lib/string/stpeprintf.h new file mode 100644 index 0000000..14ee7b6 --- /dev/null +++ b/lib/string/stpeprintf.h @@ -0,0 +1,120 @@ +/* + * SPDX-FileCopyrightText: 2022 - 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_STPEPRINTF_H_ +#define SHADOW_INCLUDE_LIB_STPEPRINTF_H_ + + +#include <config.h> + +#if !defined(HAVE_STPEPRINTF) + +#include <stdarg.h> +#include <stddef.h> +#include <stdio.h> + +#include "attr.h" +#include "defines.h" + + +format_attr(printf, 3, 4) +inline char *stpeprintf(char *dst, char *end, const char *restrict fmt, ...); + +format_attr(printf, 3, 0) +inline char *vstpeprintf(char *dst, char *end, const char *restrict fmt, + va_list ap); + + +/* + * SYNOPSIS + * [[gnu::format(printf, 3, 4)]] + * char *_Nullable stpeprintf(char *_Nullable dst, char end[0], + * const char *restrict fmt, ...); + * + * [[gnu::format(printf, 3, 0)]] + * char *_Nullable vstpeprintf(char *_Nullable dst, char end[0], + * const char *restrict fmt, va_list ap); + * + * + * ARGUMENTS + * dst Destination buffer where to write a string. + * + * end Pointer to one after the last element of the buffer + * pointed to by `dst`. Usually, it should be calculated + * as `dst + NITEMS(dst)`. + * + * fmt Format string + * + * ... + * ap Variadic argument list + * + * DESCRIPTION + * These functions are very similar to [v]snprintf(3). + * + * The destination buffer is limited by a pointer to its end --one + * after its last element-- instead of a size. This allows + * chaining calls to it safely, unlike [v]snprintf(3), which is + * difficult to chain without invoking Undefined Behavior. + * + * RETURN VALUE + * dst + strlen(dst) + * • On success, these functions return a pointer to the + * terminating NUL byte. + * + * end + * • If this call truncated the resulting string. + * • If `dst == end` (a previous chained call to these + * functions truncated). + * NULL + * • If this function failed (see ERRORS). + * • If `dst == NULL` (a previous chained call to these + * functions failed). + * + * ERRORS + * These functions may fail for the same reasons as vsnprintf(3). + */ + + +inline char * +stpeprintf(char *dst, char *end, const char *restrict fmt, ...) +{ + char *p; + va_list ap; + + va_start(ap, fmt); + p = vstpeprintf(dst, end, fmt, ap); + va_end(ap); + + return p; +} + + +inline char * +vstpeprintf(char *dst, char *end, const char *restrict fmt, va_list ap) +{ + int len; + ptrdiff_t size; + + if (dst == end) + return end; + if (dst == NULL) + return NULL; + + size = end - dst; + len = vsnprintf(dst, size, fmt, ap); + + if (len == -1) + return NULL; + if (len >= size) + return end; + + return dst + len; +} + + +#endif // !HAVE_STPEPRINTF +#endif // include guard diff --git a/lib/string/strftime.c b/lib/string/strftime.c new file mode 100644 index 0000000..ea1deb3 --- /dev/null +++ b/lib/string/strftime.c @@ -0,0 +1,7 @@ +// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "strftime.h" diff --git a/lib/string/strftime.h b/lib/string/strftime.h new file mode 100644 index 0000000..bebb31a --- /dev/null +++ b/lib/string/strftime.h @@ -0,0 +1,19 @@ +// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_STRFTIME_H_ +#define SHADOW_INCLUDE_LIB_STRFTIME_H_ + + +#include <config.h> + +#include <time.h> + +#include "sizeof.h" + + +#define STRFTIME(dst, fmt, ...) strftime(dst, NITEMS(dst), fmt, __VA_ARGS__) + + +#endif // include guard diff --git a/lib/string/strncpy.h b/lib/string/strncpy.h new file mode 100644 index 0000000..fc6fcc9 --- /dev/null +++ b/lib/string/strncpy.h @@ -0,0 +1,21 @@ +/* + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_STRNCPY_H_ +#define SHADOW_INCLUDE_LIB_STRNCPY_H_ + + +#include <config.h> + +#include <string.h> + +#include "sizeof.h" + + +#define STRNCPY(dst, src) strncpy(dst, src, NITEMS(dst)) + + +#endif // include guard diff --git a/lib/string/strtcpy.c b/lib/string/strtcpy.c new file mode 100644 index 0000000..74de4fc --- /dev/null +++ b/lib/string/strtcpy.c @@ -0,0 +1,18 @@ +/* + * SPDX-FileCopyrightText: 2022-2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#include <stddef.h> +#include <sys/types.h> + +#ident "$Id$" + +#include "string/strtcpy.h" + + +extern inline ssize_t strtcpy(char *restrict dst, const char *restrict src, + size_t dsize); diff --git a/lib/string/strtcpy.h b/lib/string/strtcpy.h new file mode 100644 index 0000000..4ff6e11 --- /dev/null +++ b/lib/string/strtcpy.h @@ -0,0 +1,80 @@ +/* + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#ifndef SHADOW_INCLUDE_LIB_STRTCPY_H_ +#define SHADOW_INCLUDE_LIB_STRTCPY_H_ + + +#include <config.h> + +#include <stdbool.h> +#include <stddef.h> +#include <string.h> +#include <sys/types.h> + +#include "attr.h" +#include "defines.h" +#include "sizeof.h" + + +/* + * SYNOPSIS + * [[gnu::null_terminated_string_arg(2)]] + * int STRTCPY(char dst[restrict], const char *restrict src); + * + * ARGUMENTS + * dst Destination buffer where to copy a string. + * src Source string to be copied into dst. + * + * DESCRIPTION + * This macro copies the string pointed to by src, into a string + * at the buffer pointed to by dst. If the destination buffer, + * isn't large enough to hold the copy, the resulting string is + * truncated. The size of the buffer is calculated internally via + * NITEMS(). + * + * RETURN VALUE + * -1 If this call truncated the resulting string. + * + * strlen(dst) + * On success. + * + * ERRORS + * This function doesn't set errno. + */ + + +#define STRTCPY(dst, src) strtcpy(dst, src, NITEMS(dst)) + + +ATTR_STRING(2) +inline ssize_t strtcpy(char *restrict dst, const char *restrict src, + size_t dsize); + + +inline ssize_t +strtcpy(char *restrict dst, const char *restrict src, size_t dsize) +{ + bool trunc; + size_t dlen, slen; + + if (dsize == 0) + return -1; + + slen = strnlen(src, dsize); + trunc = (slen == dsize); + dlen = slen - trunc; + + stpcpy(mempcpy(dst, src, dlen), ""); + + if (trunc) + return -1; + + return slen; +} + + +#endif // include guard diff --git a/lib/string/zustr2stp.h b/lib/string/zustr2stp.h new file mode 100644 index 0000000..152102b --- /dev/null +++ b/lib/string/zustr2stp.h @@ -0,0 +1,58 @@ +// SPDX-FileCopyrightText: 2022-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_STRING_ZUSTR2STP_H_ +#define SHADOW_INCLUDE_LIB_STRING_ZUSTR2STP_H_ + + +#include <config.h> + +#include <assert.h> +#include <string.h> + +#include "must_be.h" +#include "sizeof.h" + + +/* + * SYNOPSIS + * char *ZUSTR2STP(char *restrict dst, const char src[restrict]); + * + * ARGUMENTS + * dst Destination buffer. + * src Source null-padded character sequence. + * + * DESCRIPTION + * This macro copies at most NITEMS(src) non-null bytes from the + * array pointed to by src, followed by a null character, to the + * buffer pointed to by dst. + * + * RETURN VALUE + * dst + strlen(dst) + * This function returns a pointer to the terminating NUL + * byte. + * + * CAVEATS + * This function doesn't know the size of the destination buffer. + * It assumes it will always be large enough. Since the size of + * the source buffer is known to the caller, it should make sure to + * allocate a destination buffer of at least `NITEMS(src) + 1`. + * + * EXAMPLES + * char hostname[NITEMS(utmp->ut_host) + 1]; + * + * len = ZUSTR2STP(hostname, utmp->ut_host) - hostname; + * puts(hostname); + */ + + +#define ZUSTR2STP(dst, src) \ +({ \ + static_assert(!is_array(dst) || sizeof(dst) > SIZEOF_ARRAY(src), ""); \ + \ + stpcpy(mempcpy(dst, src, strnlen(src, NITEMS(src))), ""); \ +}) + + +#endif // include guard diff --git a/lib/strtoday.c b/lib/strtoday.c new file mode 100644 index 0000000..dabd5b5 --- /dev/null +++ b/lib/strtoday.c @@ -0,0 +1,77 @@ +/* + * SPDX-FileCopyrightText: 1991 - 1994, Julianne Frances Haugh + * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz + * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko + * SPDX-FileCopyrightText: 2008 , Nicolas François + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#include <ctype.h> + +#ident "$Id$" + +#include "atoi/str2i.h" +#include "prototypes.h" +#include "getdate.h" + + +/* + * strtoday() now uses get_date() (borrowed from GNU shellutils) + * which can handle many date formats, for example: + * 1970-09-17 # ISO 8601. + * 70-9-17 # This century assumed by default. + * 70-09-17 # Leading zeros are ignored. + * 9/17/72 # Common U.S. writing. + * 24 September 1972 + * 24 Sept 72 # September has a special abbreviation. + * 24 Sep 72 # Three-letter abbreviations always allowed. + * Sep 24, 1972 + * 24-sep-72 + * 24sep72 + */ +long strtoday (const char *str) +{ + time_t t; + bool isnum = true; + const char *s = str; + + /* + * get_date() interprets an empty string as the current date, + * which is not what we expect, unless you're a BOFH :-). + * (useradd sets sp_expire = current date for new lusers) + */ + if ((NULL == str) || ('\0' == *str)) { + return -1; + } + + /* If a numerical value is provided, this is already a number of + * days since EPOCH. + */ + if ('-' == *s) { + s++; + } + while (' ' == *s) { + s++; + } + while (isnum && ('\0' != *s)) { + if (!isdigit (*s)) { + isnum = false; + } + s++; + } + if (isnum) { + long retdate; + if (str2sl(&retdate, str) == -1) + return -2; + return retdate; + } + + t = get_date(str, NULL); + if ((time_t) - 1 == t) { + return -2; + } + return t / DAY; +} diff --git a/libmisc/sub.c b/lib/sub.c index d30c4c7..d8e2447 100644 --- a/libmisc/sub.c +++ b/lib/sub.c @@ -15,8 +15,10 @@ #include <sys/types.h> #include "prototypes.h" #include "defines.h" +#define MAX_SUBROOT2 "maximum subsystem depth reached\n" #define BAD_SUBROOT2 "invalid root `%s' for user `%s'\n" #define NO_SUBROOT2 "no subsystem root `%s' for user `%s'\n" +#define MAX_DEPTH 1024 /* * subsystem - change to subsystem root * @@ -27,6 +29,18 @@ */ void subsystem (const struct passwd *pw) { + static int depth = 0; + + /* + * Prevent endless loop on misconfigured systems. + */ + if (++depth > MAX_DEPTH) { + printf (_("Maximum subsystem depth reached\n")); + SYSLOG ((LOG_WARN, MAX_SUBROOT2)); + closelog (); + exit (EXIT_FAILURE); + } + /* * The new root directory must begin with a "/" character. */ @@ -43,8 +57,8 @@ void subsystem (const struct passwd *pw) * must be able to change into it. */ - if ( (chdir (pw->pw_dir) != 0) - || (chroot (pw->pw_dir) != 0)) { + if ( (chroot (pw->pw_dir) != 0) + || (chdir ("/") != 0)) { (void) printf (_("Can't change root directory to '%s'\n"), pw->pw_dir); SYSLOG ((LOG_WARN, NO_SUBROOT2, pw->pw_dir, pw->pw_name)); diff --git a/lib/subordinateio.c b/lib/subordinateio.c index bd1af26..e7cd4b4 100644 --- a/lib/subordinateio.c +++ b/lib/subordinateio.c @@ -16,6 +16,12 @@ #include <pwd.h> #include <ctype.h> #include <fcntl.h> +#include <string.h> + +#include "alloc.h" +#include "atoi/str2i.h" +#include "string/sprintf.h" + #define ID_SIZE 31 @@ -32,7 +38,7 @@ static /*@null@*/ /*@only@*/void *subordinate_dup (const void *ent) const struct subordinate_range *rangeent = ent; struct subordinate_range *range; - range = (struct subordinate_range *) malloc (sizeof *range); + range = MALLOC(1, struct subordinate_range); if (NULL == range) { return NULL; } @@ -52,7 +58,8 @@ static /*@null@*/ /*@only@*/void *subordinate_dup (const void *ent) * * @ent: pointer to a subordinate_range struct to free. */ -static void subordinate_free (/*@out@*/ /*@only@*/void *ent) +static void +subordinate_free(/*@only@*/void *ent) { struct subordinate_range *rangeent = ent; @@ -69,7 +76,8 @@ static void subordinate_free (/*@out@*/ /*@only@*/void *ent) * in @line, or NULL on failure. Note that the returned value should not * be freed by the caller. */ -static void *subordinate_parse (const char *line) +static void * +subordinate_parse(const char *line) { static struct subordinate_range range; static char rangebuf[1024]; @@ -90,19 +98,8 @@ static void *subordinate_parse (const char *line) * field. The fields are converted into NUL terminated strings. */ - for (cp = rangebuf, i = 0; (i < SUBID_NFIELDS) && (NULL != cp); i++) { - fields[i] = cp; - while (('\0' != *cp) && (':' != *cp)) { - cp++; - } - - if ('\0' != *cp) { - *cp = '\0'; - cp++; - } else { - cp = NULL; - } - } + for (cp = rangebuf, i = 0; (i < SUBID_NFIELDS) && (NULL != cp); i++) + fields[i] = strsep(&cp, ":"); /* * There must be exactly SUBID_NFIELDS colon separated fields or @@ -111,9 +108,9 @@ static void *subordinate_parse (const char *line) if (i != SUBID_NFIELDS || *fields[0] == '\0' || *fields[1] == '\0' || *fields[2] == '\0') return NULL; range.owner = fields[0]; - if (getulong (fields[1], &range.start) == 0) + if (str2ul(&range.start, fields[1]) == -1) return NULL; - if (getulong (fields[2], &range.count) == 0) + if (str2ul(&range.count, fields[2]) == -1) return NULL; return ⦥ @@ -208,7 +205,7 @@ static const struct subordinate_range *find_range(struct commonio_db *db, /* * We only do special handling for these two files */ - if ((0 != strcmp(db->filename, "/etc/subuid")) && (0 != strcmp(db->filename, "/etc/subgid"))) + if ((0 != strcmp(db->filename, SUBUID_FILE)) && (0 != strcmp(db->filename, SUBGID_FILE))) return NULL; /* @@ -218,9 +215,9 @@ static const struct subordinate_range *find_range(struct commonio_db *db, * (It may be specified as literal UID or as another username which * has the same UID as the username we are looking for.) */ - struct passwd *pwd; + char owner_uid_string[33]; uid_t owner_uid; - char owner_uid_string[33] = ""; + struct passwd *pwd; /* Get UID of the username we are looking for */ @@ -230,7 +227,8 @@ static const struct subordinate_range *find_range(struct commonio_db *db, return NULL; } owner_uid = pwd->pw_uid; - sprintf(owner_uid_string, "%lu", (unsigned long int)owner_uid); + if (SNPRINTF(owner_uid_string, "%lu", (unsigned long) owner_uid) == -1) + return NULL; commonio_rewind(db); while ((range = commonio_next(db)) != NULL) { @@ -313,19 +311,16 @@ static bool have_range(struct commonio_db *db, static bool append_range(struct subid_range **ranges, const struct subordinate_range *new, int n) { - if (!*ranges) { - *ranges = malloc(sizeof(struct subid_range)); - if (!*ranges) - return false; - } else { - struct subid_range *alloced; - alloced = realloc(*ranges, (n + 1) * (sizeof(struct subid_range))); - if (!alloced) - return false; - *ranges = alloced; - } - (*ranges)[n].start = new->start; - (*ranges)[n].count = new->count; + struct subid_range *sr; + + sr = REALLOC(*ranges, n + 1, struct subid_range); + if (!sr) + return false; + + sr[n].start = new->start; + sr[n].count = new->count; + *ranges = sr; + return true; } @@ -353,15 +348,19 @@ void free_subordinate_ranges(struct subordinate_range **ranges, int count) */ static int subordinate_range_cmp (const void *p1, const void *p2) { - struct subordinate_range *range1, *range2; + const struct commonio_entry *const *ce1; + const struct commonio_entry *const *ce2; + const struct subordinate_range *range1, *range2; - if ((*(struct commonio_entry **) p1)->eptr == NULL) + ce1 = p1; + range1 = (*ce1)->eptr; + if (range1 == NULL) return 1; - if ((*(struct commonio_entry **) p2)->eptr == NULL) - return -1; - range1 = ((struct subordinate_range *) (*(struct commonio_entry **) p1)->eptr); - range2 = ((struct subordinate_range *) (*(struct commonio_entry **) p2)->eptr); + ce2 = p2; + range2 = (*ce2)->eptr; + if (range2 == NULL) + return -1; if (range1->start < range2->start) return -1; @@ -556,7 +555,7 @@ static int remove_range (struct commonio_db *db, } static struct commonio_db subordinate_uid_db = { - "/etc/subuid", /* filename */ + SUBUID_FILE, /* filename */ &subordinate_ops, /* ops */ NULL, /* fp */ #ifdef WITH_SELINUX @@ -620,17 +619,28 @@ bool have_sub_uids(const char *owner, uid_t start, unsigned long count) return have_range (&subordinate_uid_db, owner, start, count); } +/* + * sub_uid_add: add a subuid range, perhaps through nss. + * + * Return 1 if the range is already present or on success. On error + * return 0 and set errno appropriately. + */ int sub_uid_add (const char *owner, uid_t start, unsigned long count) { - if (get_subid_nss_handle()) - return -EOPNOTSUPP; + if (get_subid_nss_handle()) { + errno = EOPNOTSUPP; + return 0; + } return add_range (&subordinate_uid_db, owner, start, count); } +/* Return 1 on success. on failure, return 0 and set errno appropriately */ int sub_uid_remove (const char *owner, uid_t start, unsigned long count) { - if (get_subid_nss_handle()) - return -EOPNOTSUPP; + if (get_subid_nss_handle()) { + errno = EOPNOTSUPP; + return 0; + } return remove_range (&subordinate_uid_db, owner, start, count); } @@ -652,7 +662,7 @@ uid_t sub_uid_find_free_range(uid_t min, uid_t max, unsigned long count) } static struct commonio_db subordinate_gid_db = { - "/etc/subgid", /* filename */ + SUBGID_FILE, /* filename */ &subordinate_ops, /* ops */ NULL, /* fp */ #ifdef WITH_SELINUX @@ -716,17 +726,28 @@ bool local_sub_gid_assigned(const char *owner) return range_exists (&subordinate_gid_db, owner); } +/* + * sub_gid_add: add a subgid range, perhaps through nss. + * + * Return 1 if the range is already present or on success. On error + * return 0 and set errno appropriately. + */ int sub_gid_add (const char *owner, gid_t start, unsigned long count) { - if (get_subid_nss_handle()) - return -EOPNOTSUPP; + if (get_subid_nss_handle()) { + errno = EOPNOTSUPP; + return 0; + } return add_range (&subordinate_gid_db, owner, start, count); } +/* Return 1 on success. on failure, return 0 and set errno appropriately */ int sub_gid_remove (const char *owner, gid_t start, unsigned long count) { - if (get_subid_nss_handle()) - return -EOPNOTSUPP; + if (get_subid_nss_handle()) { + errno = EOPNOTSUPP; + return 0; + } return remove_range (&subordinate_gid_db, owner, start, count); } @@ -910,7 +931,7 @@ static int append_uids(uid_t **uids, const char *owner, int n) return n; } - ret = realloc(*uids, (n + 1) * sizeof(uid_t)); + ret = REALLOC(*uids, n + 1, uid_t); if (!ret) { free(*uids); return -1; @@ -985,7 +1006,7 @@ bool new_subid_range(struct subordinate_range *range, enum subid_type id_type, b switch (id_type) { case ID_TYPE_UID: if (!sub_uid_lock()) { - printf("Failed loging subuids (errno %d)\n", errno); + printf("Failed locking subuids (errno %d)\n", errno); return false; } if (!sub_uid_open(O_CREAT | O_RDWR)) { @@ -997,7 +1018,7 @@ bool new_subid_range(struct subordinate_range *range, enum subid_type id_type, b break; case ID_TYPE_GID: if (!sub_gid_lock()) { - printf("Failed loging subgids (errno %d)\n", errno); + printf("Failed locking subgids (errno %d)\n", errno); return false; } if (!sub_gid_open(O_CREAT | O_RDWR)) { @@ -1057,7 +1078,7 @@ bool release_subid_range(struct subordinate_range *range, enum subid_type id_typ switch (id_type) { case ID_TYPE_UID: if (!sub_uid_lock()) { - printf("Failed loging subuids (errno %d)\n", errno); + printf("Failed locking subuids (errno %d)\n", errno); return false; } if (!sub_uid_open(O_CREAT | O_RDWR)) { @@ -1069,7 +1090,7 @@ bool release_subid_range(struct subordinate_range *range, enum subid_type id_typ break; case ID_TYPE_GID: if (!sub_gid_lock()) { - printf("Failed loging subgids (errno %d)\n", errno); + printf("Failed locking subgids (errno %d)\n", errno); return false; } if (!sub_gid_open(O_CREAT | O_RDWR)) { @@ -1097,6 +1118,6 @@ bool release_subid_range(struct subordinate_range *range, enum subid_type id_typ } #else /* !ENABLE_SUBIDS */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !ENABLE_SUBIDS */ diff --git a/libmisc/sulog.c b/lib/sulog.c index 3e95613..2ef22b2 100644 --- a/libmisc/sulog.c +++ b/lib/sulog.c @@ -64,7 +64,7 @@ void sulog (const char *tty, bool success, const char *oldname, const char *name /* Do not return if the group permission were raised. */ exit (EXIT_FAILURE); } - if (fp == (FILE *) 0) { + if (fp == NULL) { return; /* can't open or create logfile */ } diff --git a/lib/tcbfuncs.c b/lib/tcbfuncs.c index 1ed5d03..b5915fc 100644 --- a/lib/tcbfuncs.c +++ b/lib/tcbfuncs.c @@ -141,7 +141,7 @@ static /*@null@*/ char *shadowtcb_path_rel_existing (const char *name) shadow_progname, link); return NULL; } - link[(size_t)ret] = '\0'; + link[ret] = '\0'; rval = strdup (link); if (NULL == rval) { OUT_OF_MEMORY; @@ -527,7 +527,7 @@ shadowtcb_status shadowtcb_create (const char *name, uid_t uid) struct stat tcbdir_stat; gid_t shadowgid, authgid; struct group *gr; - int fd; + int fd = -1; shadowtcb_status ret = SHADOWTCB_FAILURE; if (!getdef_bool ("USE_TCB")) { @@ -566,14 +566,13 @@ shadowtcb_status shadowtcb_create (const char *name, uid_t uid) shadow_progname, shadow, strerror (errno)); goto out_free; } - close (fd); - if (chown (shadow, 0, authgid) != 0) { + if (fchown (fd, 0, authgid) != 0) { fprintf (shadow_logfd, _("%s: Cannot change owner of %s: %s\n"), shadow_progname, shadow, strerror (errno)); goto out_free; } - if (chmod (shadow, (mode_t) ((authgid == shadowgid) ? 0600 : 0640)) != 0) { + if (fchmod (fd, (mode_t) ((authgid == shadowgid) ? 0600 : 0640)) != 0) { fprintf (shadow_logfd, _("%s: Cannot change mode of %s: %s\n"), shadow_progname, shadow, strerror (errno)); @@ -597,6 +596,8 @@ shadowtcb_status shadowtcb_create (const char *name, uid_t uid) } ret = SHADOWTCB_SUCCESS; out_free: + if (fd != -1) + close(fd); free (dir); free (shadow); return ret; diff --git a/lib/time/day_to_str.c b/lib/time/day_to_str.c new file mode 100644 index 0000000..e3e4221 --- /dev/null +++ b/lib/time/day_to_str.c @@ -0,0 +1,11 @@ +// SPDX-FileCopyrightText: 2021-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-FileCopyrightText: 2024, Tobias Stoeckmann <tobias@stoeckmann.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#include <config.h> + +#include "time/day_to_str.h" + + +extern inline void day_to_str(size_t size, char buf[size], long day); diff --git a/lib/time/day_to_str.h b/lib/time/day_to_str.h new file mode 100644 index 0000000..96cec6e --- /dev/null +++ b/lib/time/day_to_str.h @@ -0,0 +1,51 @@ +// SPDX-FileCopyrightText: 2021-2024, Alejandro Colomar <alx@kernel.org> +// SPDX-FileCopyrightText: 2024, Tobias Stoeckmann <tobias@stoeckmann.org> +// SPDX-License-Identifier: BSD-3-Clause + + +#ifndef SHADOW_INCLUDE_LIB_TIME_DAY_TO_STR_H_ +#define SHADOW_INCLUDE_LIB_TIME_DAY_TO_STR_H_ + + +#include <config.h> + +#include <time.h> + +#include "defines.h" +#include "sizeof.h" +#include "string/strtcpy.h" + + +#define DAY_TO_STR(str, day) day_to_str(NITEMS(str), str, day) + + +inline void day_to_str(size_t size, char buf[size], long day); + + +inline void +day_to_str(size_t size, char buf[size], long day) +{ + time_t date; + struct tm tm; + + if (day < 0) { + strtcpy(buf, "never", size); + return; + } + + if (__builtin_mul_overflow(day, DAY, &date)) { + strtcpy(buf, "future", size); + return; + } + + if (gmtime_r(&date, &tm) == NULL) { + strtcpy(buf, "future", size); + return; + } + + if (strftime(buf, size, "%Y-%m-%d", &tm) == 0) + strtcpy(buf, "future", size); +} + + +#endif // include guard diff --git a/libmisc/ttytype.c b/lib/ttytype.c index f72d957..a9fb0e8 100644 --- a/libmisc/ttytype.c +++ b/lib/ttytype.c @@ -34,16 +34,14 @@ void ttytype (const char *line) if (NULL == typefile) { return; } - if (access (typefile, F_OK) != 0) { - return; - } fp = fopen (typefile, "r"); if (NULL == fp) { - perror (typefile); + if (errno != ENOENT) + perror (typefile); return; } - while (fgets (buf, (int) sizeof buf, fp) == buf) { + while (fgets (buf, sizeof buf, fp) == buf) { if (buf[0] == '#') { continue; } @@ -34,7 +34,7 @@ fp = fopen (fname, "r"); if ( (NULL == fp) - || (fgets (tzbuf, (int) sizeof (tzbuf), fp) == NULL)) { + || (fgets (tzbuf, sizeof (tzbuf), fp) == NULL)) { def_tz = getdef_str ("ENV_TZ"); if ((NULL == def_tz) || ('/' == def_tz[0])) { def_tz = "TZ=CST6CDT"; @@ -42,7 +42,8 @@ strcpy (tzbuf, def_tz); } else { - tzbuf[strlen (tzbuf) - 1] = '\0'; + /* Remove optional trailing '\n'. */ + tzbuf[strcspn (tzbuf, "\n")] = '\0'; } if (NULL != fp) { @@ -52,6 +53,6 @@ return tzbuf; } #else /* !USE_PAM */ -extern int errno; /* warning: ANSI C forbids an empty source file */ +extern int ISO_C_forbids_an_empty_translation_unit; #endif /* !USE_PAM */ diff --git a/libmisc/ulimit.c b/lib/ulimit.c index e331d46..45a184a 100644 --- a/libmisc/ulimit.c +++ b/lib/ulimit.c @@ -11,36 +11,18 @@ #ident "$Id$" -#if HAVE_ULIMIT_H -#include <ulimit.h> -#ifndef UL_SETFSIZE -#ifdef UL_SFILLIM -#define UL_SETFSIZE UL_SFILLIM -#else -#define UL_SETFSIZE 2 -#endif -#endif -#elif HAVE_SYS_RESOURCE_H -#include <sys/time.h> /* for struct timeval on sunos4 */ -/* XXX - is the above ok or should it be <time.h> on ultrix? */ +#include <sys/time.h> #include <sys/resource.h> -#endif #include "prototypes.h" int set_filesize_limit (int blocks) { int ret = -1; -#if HAVE_ULIMIT_H - if (ulimit (UL_SETFSIZE, blocks) != -1) { - ret = 0; - } -#elif defined(RLIMIT_FSIZE) struct rlimit rlimit_fsize; rlimit_fsize.rlim_cur = 512L * blocks; rlimit_fsize.rlim_max = rlimit_fsize.rlim_cur; ret = setrlimit (RLIMIT_FSIZE, &rlimit_fsize); -#endif return ret; } diff --git a/libmisc/user_busy.c b/lib/user_busy.c index c03feb2..a622376 100644 --- a/libmisc/user_busy.c +++ b/lib/user_busy.c @@ -23,6 +23,8 @@ #include "subordinateio.h" #endif /* ENABLE_SUBIDS */ #include "shadowlog.h" +#include "string/sprintf.h" + #ifdef __linux__ static int check_status (const char *name, const char *sname, uid_t uid); @@ -32,7 +34,7 @@ static int user_busy_utmp (const char *name); #endif /* !__linux__ */ /* - * user_busy - check if an user if currently running processes + * user_busy - check if a user is currently running processes */ int user_busy (const char *name, uid_t uid) { @@ -43,26 +45,21 @@ int user_busy (const char *name, uid_t uid) /* On Linux, directly parse /proc */ return user_busy_processes (name, uid); #else /* !__linux__ */ - /* If we cannot rely on /proc, check is there is a record in utmp + /* If we cannot rely on /proc, check if there is a record in utmp * indicating that the user is still logged in */ return user_busy_utmp (name); #endif /* !__linux__ */ } + #ifndef __linux__ -static int user_busy_utmp (const char *name) +static int +user_busy_utmp(const char *name) { -#ifdef USE_UTMPX - struct utmpx *utent; + struct utmpx *utent; - setutxent (); - while ((utent = getutxent ()) != NULL) -#else /* !USE_UTMPX */ - struct utmp *utent; - - setutent (); - while ((utent = getutent ()) != NULL) -#endif /* !USE_UTMPX */ + setutxent(); + while ((utent = getutxent()) != NULL) { if (utent->ut_type != USER_PROCESS) { continue; @@ -84,17 +81,18 @@ static int user_busy_utmp (const char *name) } #endif /* !__linux__ */ + #ifdef __linux__ #ifdef ENABLE_SUBIDS #define in_parentuid_range(uid) ((uid) >= parentuid && (uid) < parentuid + range) static int different_namespace (const char *sname) { /* 41: /proc/xxxxxxxxxx/task/xxxxxxxxxx/ns/user + \0 */ - char path[41]; - char buf[512], buf2[512]; - ssize_t llen1, llen2; + char path[41]; + char buf[512], buf2[512]; + ssize_t llen1, llen2; - snprintf (path, 41, "/proc/%s/ns/user", sname); + SNPRINTF(path, "/proc/%s/ns/user", sname); if ((llen1 = readlink (path, buf, sizeof(buf))) == -1) return 0; @@ -113,11 +111,11 @@ static int different_namespace (const char *sname) static int check_status (const char *name, const char *sname, uid_t uid) { /* 40: /proc/xxxxxxxxxx/task/xxxxxxxxxx/status + \0 */ - char status[40]; - char line[1024]; - FILE *sfile; + char status[40]; + char line[1024]; + FILE *sfile; - snprintf (status, 40, "/proc/%s/status", sname); + SNPRINTF(status, "/proc/%s/status", sname); sfile = fopen (status, "r"); if (NULL == sfile) { @@ -158,16 +156,16 @@ static int check_status (const char *name, const char *sname, uid_t uid) static int user_busy_processes (const char *name, uid_t uid) { - DIR *proc; - struct dirent *ent; - char *tmp_d_name; - pid_t pid; - DIR *task_dir; + DIR *proc; + DIR *task_dir; + char *tmp_d_name; /* 22: /proc/xxxxxxxxxx/task + \0 */ - char task_path[22]; - char root_path[22]; - struct stat sbroot; - struct stat sbroot_process; + char task_path[22]; + char root_path[22]; + pid_t pid; + struct stat sbroot; + struct stat sbroot_process; + struct dirent *ent; #ifdef ENABLE_SUBIDS sub_uid_open (O_RDONLY); @@ -207,13 +205,12 @@ static int user_busy_processes (const char *name, uid_t uid) } /* Check if this is a valid PID */ - if (get_pid (tmp_d_name, &pid) == 0) { + if (get_pid(tmp_d_name, &pid) == -1) { continue; } /* Check if the process is in our chroot */ - snprintf (root_path, 22, "/proc/%lu/root", (unsigned long) pid); - root_path[21] = '\0'; + SNPRINTF(root_path, "/proc/%lu/root", (unsigned long) pid); if (stat (root_path, &sbroot_process) != 0) { continue; } @@ -233,13 +230,12 @@ static int user_busy_processes (const char *name, uid_t uid) return 1; } - snprintf (task_path, 22, "/proc/%lu/task", (unsigned long) pid); - task_path[21] = '\0'; + SNPRINTF(task_path, "/proc/%lu/task", (unsigned long) pid); task_dir = opendir (task_path); if (task_dir != NULL) { while ((ent = readdir (task_dir)) != NULL) { pid_t tid; - if (get_pid (ent->d_name, &tid) == 0) { + if (get_pid(ent->d_name, &tid) == -1) { continue; } if (tid == pid) { diff --git a/lib/utent.c b/lib/utent.c deleted file mode 100644 index d5e6dae..0000000 --- a/lib/utent.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1993 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 1998, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2005 , Tomasz Kłoczko - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ifndef HAVE_GETUTENT - -#include "defines.h" -#include <stdio.h> -#include <fcntl.h> -#include <utmp.h> - -#ifndef lint -static char rcsid[] = "$Id$"; -#endif - -static int utmp_fd = -1; -static struct utmp utmp_buf; - -/* - * setutent - open or rewind the utmp file - */ - -void setutent (void) -{ - if (utmp_fd == -1) - if ((utmp_fd = open (_UTMP_FILE, O_RDWR)) == -1) - utmp_fd = open (_UTMP_FILE, O_RDONLY); - - if (utmp_fd != -1) - lseek (utmp_fd, (off_t) 0L, SEEK_SET); -} - -/* - * endutent - close the utmp file - */ - -void endutent (void) -{ - if (utmp_fd != -1) - close (utmp_fd); - - utmp_fd = -1; -} - -/* - * getutent - get the next record from the utmp file - */ - -struct utmp *getutent (void) -{ - if (utmp_fd == -1) - setutent (); - - if (utmp_fd == -1) - return 0; - - if (read (utmp_fd, &utmp_buf, sizeof utmp_buf) != sizeof utmp_buf) - return 0; - - return &utmp_buf; -} -#else -extern int errno; /* warning: ANSI C forbids an empty source file */ -#endif diff --git a/lib/utmp.c b/lib/utmp.c new file mode 100644 index 0000000..08e9b62 --- /dev/null +++ b/lib/utmp.c @@ -0,0 +1,434 @@ +/* + * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh + * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz + * SPDX-FileCopyrightText: 2001 - 2005, Tomasz Kłoczko + * SPDX-FileCopyrightText: 2008 - 2009, Nicolas François + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#include "defines.h" +#include "prototypes.h" +#include "getdef.h" + +#include <utmpx.h> +#include <assert.h> +#include <sys/param.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netdb.h> +#include <stdio.h> +#include <fcntl.h> + +#include "alloc.h" +#include "sizeof.h" +#include "string/strncpy.h" +#include "string/strtcpy.h" +#include "string/zustr2stp.h" + +#ident "$Id$" + + +#define UTX_LINESIZE NITEMS(memberof(struct utmpx, ut_line)) + + +/* + * is_my_tty -- determine if "tty" is the same TTY stdin is using + */ +static bool +is_my_tty(const char tty[UTX_LINESIZE]) +{ + char full_tty[STRLEN("/dev/") + UTX_LINESIZE + 1]; + /* tmptty shall be bigger than full_tty */ + static char tmptty[sizeof(full_tty) + 1]; + + full_tty[0] = '\0'; + if (tty[0] != '/') + strcpy (full_tty, "/dev/"); + strncat(full_tty, tty, UTX_LINESIZE); + + if ('\0' == tmptty[0]) { + const char *tname = ttyname (STDIN_FILENO); + if (NULL != tname) + STRTCPY(tmptty, tname); + } + + if ('\0' == tmptty[0]) { + (void) puts (_("Unable to determine your tty name.")); + exit (EXIT_FAILURE); + } + + return strcmp (full_tty, tmptty) == 0; +} + + +/* + * failtmp - update the cumulative failure log + * + * failtmp updates the (struct utmpx) formatted failure log which + * maintains a record of all login failures. + */ +static void +failtmp(const char *username, const struct utmpx *failent) +{ + const char *ftmp; + int fd; + + /* + * Get the name of the failure file. If no file has been defined + * in login.defs, don't do this. + */ + + ftmp = getdef_str ("FTMP_FILE"); + if (NULL == ftmp) { + return; + } + + /* + * Open the file for append. It must already exist for this + * feature to be used. + */ + + fd = open (ftmp, O_WRONLY | O_APPEND); + if (-1 == fd) { + if (errno != ENOENT) { + SYSLOG ((LOG_WARN, + "Can't append failure of user %s to %s: %m", + username, ftmp)); + } + return; + } + + /* + * Append the new failure record and close the log file. + */ + + if (write_full(fd, failent, sizeof *failent) == -1) { + goto err_write; + } + + if (close (fd) != 0 && errno != EINTR) { + goto err_close; + } + + return; + +err_write: + { + int saved_errno = errno; + (void) close (fd); + errno = saved_errno; + } +err_close: + SYSLOG ((LOG_WARN, + "Can't append failure of user %s to %s: %m", + username, ftmp)); +} + + +/* + * get_current_utmp - return the most probable utmp entry for the current + * session + * + * The utmp file is scanned for an entry with the same process ID. + * The line entered by the *getty / telnetd, etc. should also match + * the current terminal. + * + * When an entry is returned by get_current_utmp, and if the utmpx + * structure has a ut_id field, this field should be used to update + * the entry information. + * + * Return NULL if no entries exist in utmp for the current process. + */ +static /*@null@*/ /*@only@*/struct utmpx * +get_current_utmp(void) +{ + struct utmpx *ut; + struct utmpx *ret = NULL; + + setutxent(); + + /* First, try to find a valid utmp entry for this process. */ + while ((ut = getutxent()) != NULL) { + if ( (ut->ut_pid == getpid ()) + && ('\0' != ut->ut_id[0]) + && ( (LOGIN_PROCESS == ut->ut_type) + || (USER_PROCESS == ut->ut_type)) + /* A process may have failed to close an entry + * Check if this entry refers to the current tty */ + && is_my_tty(ut->ut_line)) + { + break; + } + } + + if (NULL != ut) { + ret = XMALLOC(1, struct utmpx); + memcpy (ret, ut, sizeof (*ret)); + } + + endutxent(); + + return ret; +} + + +int +get_session_host(char **out) +{ + int ret = 0; + struct utmpx *ut; + + ut = get_current_utmp(); + +#if defined(HAVE_STRUCT_UTMPX_UT_HOST) + if ((ut != NULL) && (ut->ut_host[0] != '\0')) { + char *hostname; + + hostname = XMALLOC(sizeof(ut->ut_host) + 1, char); + ZUSTR2STP(hostname, ut->ut_host); + *out = hostname; + free (ut); + } else { + *out = NULL; + ret = -2; + } +#else + *out = NULL; + ret = -2; +#endif + + return ret; +} + + +#if !defined(USE_PAM) && !defined(HAVE_UPDWTMPX) +/* + * Some systems already have updwtmpx(). Others + * don't, so we re-implement these functions if necessary. + */ +static void +updwtmpx(const char *filename, const struct utmpx *ut) +{ + int fd; + + fd = open (filename, O_APPEND | O_WRONLY, 0); + if (fd >= 0) { + write_full(fd, ut, sizeof(*ut)); + close (fd); + } +} +#endif + + +/* + * prepare_utmp - prepare an utmp entry so that it can be logged in a + * utmp/wtmp file. + * + * It accepts an utmp entry in input (ut) to return an entry with + * the right ut_id. This is typically an entry returned by + * get_current_utmp + * If ut is NULL, ut_id will be forged based on the line argument. + * + * The ut_host field of the input structure may also be kept, and is + * used to define the ut_addr/ut_addr_v6 fields. (if these fields + * exist) + * + * Other fields are discarded and filed with new values (if they + * exist). + * + * The returned structure shall be freed by the caller. + */ +static /*@only@*/struct utmpx * +prepare_utmp(const char *name, const char *line, const char *host, + /*@null@*/const struct utmpx *ut) +{ + char *hostname = NULL; + struct utmpx *utent; + struct timeval tv; + + assert (NULL != name); + assert (NULL != line); + + + + if ( (NULL != host) + && ('\0' != host[0])) { + hostname = XMALLOC(strlen(host) + 1, char); + strcpy (hostname, host); +#if defined(HAVE_STRUCT_UTMPX_UT_HOST) + } else if ( (NULL != ut) + && ('\0' != ut->ut_host[0])) { + hostname = XMALLOC(NITEMS(ut->ut_host) + 1, char); + ZUSTR2STP(hostname, ut->ut_host); +#endif + } + + if (strncmp(line, "/dev/", 5) == 0) { + line += 5; + } + + + utent = XCALLOC(1, struct utmpx); + + + utent->ut_type = USER_PROCESS; + utent->ut_pid = getpid (); + STRNCPY(utent->ut_line, line); + if (NULL != ut) { + STRNCPY(utent->ut_id, ut->ut_id); + } else { + /* XXX - assumes /dev/tty?? */ + STRNCPY(utent->ut_id, line + 3); + } +#if defined(HAVE_STRUCT_UTMPX_UT_NAME) + STRNCPY(utent->ut_name, name); +#endif + STRNCPY(utent->ut_user, name); + if (NULL != hostname) { + struct addrinfo *info = NULL; +#if defined(HAVE_STRUCT_UTMPX_UT_HOST) + STRNCPY(utent->ut_host, hostname); +#endif +#if defined(HAVE_STRUCT_UTMPX_UT_SYSLEN) + utent->ut_syslen = MIN (strlen (hostname), + sizeof (utent->ut_host)); +#endif +#if defined(HAVE_STRUCT_UTMPX_UT_ADDR) || defined(HAVE_STRUCT_UTMPX_UT_ADDR_V6) + if (getaddrinfo (hostname, NULL, NULL, &info) == 0) { + /* getaddrinfo might not be reliable. + * Just try to log what may be useful. + */ + if (info->ai_family == AF_INET) { + struct sockaddr_in *sa = + (struct sockaddr_in *) info->ai_addr; +# if defined(HAVE_STRUCT_UTMPX_UT_ADDR) + memcpy (&(utent->ut_addr), + &(sa->sin_addr), + MIN (sizeof (utent->ut_addr), + sizeof (sa->sin_addr))); +# endif +# if defined(HAVE_STRUCT_UTMPX_UT_ADDR_V6) + memcpy (utent->ut_addr_v6, + &(sa->sin_addr), + MIN (sizeof (utent->ut_addr_v6), + sizeof (sa->sin_addr))); + } else if (info->ai_family == AF_INET6) { + struct sockaddr_in6 *sa = + (struct sockaddr_in6 *) info->ai_addr; + memcpy (utent->ut_addr_v6, + &(sa->sin6_addr), + MIN (sizeof (utent->ut_addr_v6), + sizeof (sa->sin6_addr))); +# endif + } + freeaddrinfo (info); + } +#endif + free (hostname); + } + /* ut_exit is only for DEAD_PROCESS */ + utent->ut_session = getsid (0); + if (gettimeofday (&tv, NULL) == 0) { +#if defined(HAVE_STRUCT_UTMPX_UT_TIME) + utent->ut_time = tv.tv_sec; +#endif +#if defined(HAVE_STRUCT_UTMPX_UT_XTIME) + utent->ut_xtime = tv.tv_usec; +#endif + utent->ut_tv.tv_sec = tv.tv_sec; + utent->ut_tv.tv_usec = tv.tv_usec; + } + + return utent; +} + + +/* + * setutmp - Update an entry in utmp and log an entry in wtmp + * + * Return 1 on failure and 0 on success. + */ +static int +setutmp(struct utmpx *ut) +{ + int err = 0; + + assert (NULL != ut); + + setutxent(); + if (pututxline(ut) == NULL) { + err = 1; + } + endutxent(); + +#if !defined(USE_PAM) + /* This is done by pam_lastlog */ + updwtmpx(_WTMP_FILE, ut); +#endif + + return err; +} + + +int +update_utmp(const char *user, const char *tty, const char *host) +{ + struct utmpx *utent, *ut; + + utent = get_current_utmp (); + ut = prepare_utmp (user, tty, host, utent); + + (void) setutmp (ut); /* make entry in the utmp & wtmp files */ + + free(utent); + free(ut); + + return 0; +} + + +void +record_failure(const char *failent_user, const char *tty, const char *hostname) +{ + struct utmpx *utent, *failent; + + if (getdef_str ("FTMP_FILE") != NULL) { + utent = get_current_utmp (); + failent = prepare_utmp (failent_user, tty, hostname, utent); + failtmp (failent_user, failent); + free (utent); + free (failent); + } +} + + +unsigned long +active_sessions_count(const char *name, unsigned long limit) +{ + struct utmpx *ut; + unsigned long count = 0; + + setutxent(); + while ((ut = getutxent())) + { + if (USER_PROCESS != ut->ut_type) { + continue; + } + if ('\0' == ut->ut_user[0]) { + continue; + } + if (strncmp (name, ut->ut_user, sizeof (ut->ut_user)) != 0) { + continue; + } + count++; + if (count > limit) { + break; + } + } + endutxent(); + + return count; +} diff --git a/libmisc/valid.c b/lib/valid.c index 326635f..326635f 100644 --- a/libmisc/valid.c +++ b/lib/valid.c diff --git a/lib/write_full.c b/lib/write_full.c new file mode 100644 index 0000000..4ef902c --- /dev/null +++ b/lib/write_full.c @@ -0,0 +1,77 @@ +/* + * SPDX-FileCopyrightText: 2023, Christian Göttsche <cgzones@googlemail.com> + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#ident "$Id$" + +#include <errno.h> +#include <unistd.h> + +#include "prototypes.h" + + +/* + * SYNOPSIS + * int write_full(int fd, const void *buf, size_t count); + * + * ARGUMENTS + * fd File descriptor. + * buf Source buffer to write(2) into 'fd'. + * count Size of 'buf'. + * + * DESCRIPTION + * Write 'count' bytes from the buffer starting at 'buf' to the + * file referred to by 'fd'. + * + * This function is similar to write(2), except that it retries + * in case of a short write. + * + * Since this function either performs a full write, or fails, the + * return value is simpler than for write(2). + * + * RETURN VALUE + * 0 On success. + * -1 On error. + * + * ERRORS + * See write(2). + * + * CAVEATS + * This function can still perform partial writes: if the function + * fails in the loop after one or more write(2) calls have + * succeeded, it will report a failure, but some data may have been + * written. In such a case, it's the caller's responsibility to + * make sure that the partial write is not problematic, and + * remediate it if it is --maybe by trying to remove the file--. + */ + + +int +write_full(int fd, const void *buf, size_t count) +{ + ssize_t w; + const unsigned char *p; + + p = buf; + + while (count > 0) { + w = write(fd, p, count); + if (w == -1) { + if (errno == EINTR) + continue; + + return -1; + } + + p += w; + count -= w; + } + + return 0; +} diff --git a/libmisc/xgetXXbyYY.c b/lib/xgetXXbyYY.c index 6a3f969..7d5e914 100644 --- a/libmisc/xgetXXbyYY.c +++ b/lib/xgetXXbyYY.c @@ -23,13 +23,15 @@ * Two important function classes that fall into this category are * getpwnam(3) and syslog(3). * - * This file provide wrapper to the getpwnam or getpwnam_r functions. + * This file provides wrapper to the name or name_r functions. */ #include <unistd.h> #include <stdlib.h> #include <stdio.h> #include <errno.h> + +#include "alloc.h" #include "prototypes.h" #include "shadowlog.h" @@ -50,46 +52,38 @@ /* we have to start with something */ size_t length = 0x100; - result = malloc(sizeof(LOOKUP_TYPE)); + result = MALLOC(1, LOOKUP_TYPE); if (NULL == result) { - fprintf (log_get_logfd(), _("%s: out of memory\n"), - "x" STRINGIZE(FUNCTION_NAME)); - exit (13); + goto oom; } while (true) { int status; LOOKUP_TYPE *resbuf = NULL; - buffer = (char *)realloc (buffer, length); - if (NULL == buffer) { - fprintf (log_get_logfd(), _("%s: out of memory\n"), - "x" STRINGIZE(FUNCTION_NAME)); - exit (13); - } + buffer = XREALLOC(buffer, length, char); status = REENTRANT_NAME(ARG_NAME, result, buffer, length, &resbuf); if ((0 == status) && (resbuf == result)) { /* Build a result structure that can be freed by * the shadow *_free functions. */ LOOKUP_TYPE *ret_result = DUP_FUNCTION(result); + if (NULL == ret_result) { + goto oom; + } free(buffer); free(result); return ret_result; } if (ERANGE != status) { - free (buffer); - free (result); - return NULL; + break; } - if (length <= ((size_t)-1 / 4)) { - length *= 4; - } else if (length == (size_t) -1) { + if (length == SIZE_MAX) { break; - } else { - length = (size_t) -1; } + + length = (length <= SIZE_MAX / 4) ? length * 4 : SIZE_MAX; } free(buffer); @@ -109,13 +103,16 @@ if (result) { result = DUP_FUNCTION(result); if (NULL == result) { - fprintf (log_get_logfd(), _("%s: out of memory\n"), - "x" STRINGIZE(FUNCTION_NAME)); - exit (13); + goto oom; } } return result; #endif + +oom: + fprintf (log_get_logfd(), _("%s: out of memory\n"), + "x" STRINGIZE(FUNCTION_NAME)); + exit (13); } diff --git a/libmisc/xgetgrgid.c b/lib/xgetgrgid.c index fe99929..6419196 100644 --- a/libmisc/xgetgrgid.c +++ b/lib/xgetgrgid.c @@ -23,7 +23,7 @@ * Two important function classes that fall into this category are * getpwnam(3) and syslog(3). * - * This file provide wrapper to the getpwnam or getpwnam_r functions. + * This file provides wrapper to the getgrgid or getgrgid_r functions. */ #include <config.h> @@ -35,7 +35,7 @@ #define ARG_TYPE gid_t #define ARG_NAME gid #define DUP_FUNCTION __gr_dup -#define HAVE_FUNCTION_R (defined HAVE_GETGRGID_R) +#define HAVE_FUNCTION_R 1 #include "xgetXXbyYY.c" diff --git a/libmisc/xgetgrnam.c b/lib/xgetgrnam.c index 66d6f93..35ad9ee 100644 --- a/libmisc/xgetgrnam.c +++ b/lib/xgetgrnam.c @@ -23,7 +23,7 @@ * Two important function classes that fall into this category are * getpwnam(3) and syslog(3). * - * This file provide wrapper to the getpwnam or getpwnam_r functions. + * This file provides wrapper to the getgrnam or getgrnam_r functions. */ #include <config.h> @@ -35,7 +35,7 @@ #define ARG_TYPE const char * #define ARG_NAME name #define DUP_FUNCTION __gr_dup -#define HAVE_FUNCTION_R (defined HAVE_GETGRNAM_R) +#define HAVE_FUNCTION_R 1 #include "xgetXXbyYY.c" diff --git a/libmisc/xgetpwnam.c b/lib/xgetpwnam.c index 74eb972..4387e79 100644 --- a/libmisc/xgetpwnam.c +++ b/lib/xgetpwnam.c @@ -23,7 +23,7 @@ * Two important function classes that fall into this category are * getpwnam(3) and syslog(3). * - * This file provide wrapper to the getpwnam or getpwnam_r functions. + * This file provides wrapper to the getpwnam or getpwnam_r functions. */ #include <config.h> @@ -35,7 +35,7 @@ #define ARG_TYPE const char * #define ARG_NAME name #define DUP_FUNCTION __pw_dup -#define HAVE_FUNCTION_R (defined HAVE_GETPWNAM_R) +#define HAVE_FUNCTION_R 1 #include "xgetXXbyYY.c" diff --git a/libmisc/xgetpwuid.c b/lib/xgetpwuid.c index 23b2d0c..d663a42 100644 --- a/libmisc/xgetpwuid.c +++ b/lib/xgetpwuid.c @@ -23,7 +23,7 @@ * Two important function classes that fall into this category are * getpwnam(3) and syslog(3). * - * This file provide wrapper to the getpwnam or getpwnam_r functions. + * This file provides wrapper to the getpwuid or getpwuid_r functions. */ #include <config.h> @@ -35,7 +35,7 @@ #define ARG_TYPE uid_t #define ARG_NAME uid #define DUP_FUNCTION __pw_dup -#define HAVE_FUNCTION_R (defined HAVE_GETPWUID_R) +#define HAVE_FUNCTION_R 1 #include "xgetXXbyYY.c" diff --git a/libmisc/xgetspnam.c b/lib/xgetspnam.c index 148185f..ebda94b 100644 --- a/libmisc/xgetspnam.c +++ b/lib/xgetspnam.c @@ -23,7 +23,7 @@ * Two important function classes that fall into this category are * getpwnam(3) and syslog(3). * - * This file provide wrapper to the getpwnam or getpwnam_r functions. + * This file provides wrapper to the getspnam or getspnam_r functions. */ #include <config.h> diff --git a/lib/xprefix_getpwnam.c b/lib/xprefix_getpwnam.c new file mode 100644 index 0000000..cec0106 --- /dev/null +++ b/lib/xprefix_getpwnam.c @@ -0,0 +1,41 @@ +/* + * SPDX-FileCopyrightText: 2007 - 2009, Nicolas François + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* + * According to the Linux-PAM documentation: + * + * 4.1. Care about standard library calls + * + * In general, writers of authorization-granting applications should + * assume that each module is likely to call any or all 'libc' functions. + * For 'libc' functions that return pointers to static/dynamically + * allocated structures (ie. the library allocates the memory and the + * user is not expected to 'free()' it) any module call to this function + * is likely to corrupt a pointer previously obtained by the application. + * The application programmer should either re-call such a 'libc' + * function after a call to the Linux-PAM library, or copy the structure + * contents to some safe area of memory before passing control to the + * Linux-PAM library. + * + * Two important function classes that fall into this category are + * getpwnam(3) and syslog(3). + * + * This file provides wrapper to the prefix_getpwnam or prefix_getpwnam_r functions. + */ + +#include <config.h> + +#include "pwio.h" + +#define LOOKUP_TYPE struct passwd +#define FUNCTION_NAME prefix_getpwnam +#define ARG_TYPE const char * +#define ARG_NAME name +#define DUP_FUNCTION __pw_dup +#define HAVE_FUNCTION_R HAVE_FGETPWENT_R + +#include "xgetXXbyYY.c" + diff --git a/lib/yesno.c b/lib/yesno.c new file mode 100644 index 0000000..029cd81 --- /dev/null +++ b/lib/yesno.c @@ -0,0 +1,87 @@ +/* + * SPDX-FileCopyrightText: 1992 - 1994, Julianne Frances Haugh + * SPDX-FileCopyrightText: 2007 - 2008, Nicolas François + * SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include <config.h> + +#ident "$Id$" + +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include "prototypes.h" + + +/* + * Synopsis + * bool yes_or_no(bool read_only); + * + * Arguments + * read_only + * In read-only mode, all questions are answered "no". It + * will print "No" to stdout. + * + * Description + * After a yes/no question, this function gets the answer from the + * user. + * + * Calls to this function will normally be preceeded by a prompt on + * stdout, so we should fflush(3). + * + * Return value + * false "no" + * true "yes" + * + * See also + * rpmatch(3) + */ + + +#if !defined(HAVE_RPMATCH) +static int rpmatch(const char *response); +#endif + + +bool +yes_or_no(bool read_only) +{ + bool ret; + char *buf; + size_t size; + + if (read_only) { + puts(_("No")); + return false; + } + + fflush(stdout); + + buf = NULL; + ret = false; + size = 0; + if (getline(&buf, &size, stdin) != -1) + ret = rpmatch(buf) == 1; + + free(buf); + return ret; +} + + +#if !defined(HAVE_RPMATCH) +static int +rpmatch(const char *response) +{ + if (response[0] == 'y' || response[0] == 'Y') + return 1; + + if (response[0] == 'n' || response[0] == 'n') + return 0; + + return -1; +} +#endif diff --git a/libmisc/.indent.pro b/libmisc/.indent.pro deleted file mode 100644 index fe572bb..0000000 --- a/libmisc/.indent.pro +++ /dev/null @@ -1,5 +0,0 @@ --kr --i8 --bad --pcs --l80 diff --git a/libmisc/Makefile.am b/libmisc/Makefile.am deleted file mode 100644 index 3d319cd..0000000 --- a/libmisc/Makefile.am +++ /dev/null @@ -1,80 +0,0 @@ - -EXTRA_DIST = .indent.pro xgetXXbyYY.c - -AM_CPPFLAGS = -I$(top_srcdir)/lib -I$(top_srcdir) $(ECONF_CPPFLAGS) - -noinst_LTLIBRARIES = libmisc.la - -libmisc_la_SOURCES = \ - addgrps.c \ - age.c \ - audit_help.c \ - basename.c \ - chkname.c \ - chkname.h \ - chowndir.c \ - chowntty.c \ - cleanup.c \ - cleanup_group.c \ - cleanup_user.c \ - console.c \ - copydir.c \ - date_to_str.c \ - entry.c \ - env.c \ - failure.c \ - failure.h \ - find_new_gid.c \ - find_new_uid.c \ - find_new_sub_gids.c \ - find_new_sub_uids.c \ - getdate.h \ - getdate.y \ - getgr_nam_gid.c \ - getrange.c \ - gettime.c \ - hushed.c \ - idmapping.h \ - idmapping.c \ - isexpired.c \ - limits.c \ - list.c log.c \ - loginprompt.c \ - mail.c \ - motd.c \ - myname.c \ - obscure.c \ - pam_pass.c \ - pam_pass_non_interactive.c \ - prefix_flag.c \ - pwd2spwd.c \ - pwdcheck.c \ - pwd_init.c \ - remove_tree.c \ - rlogin.c \ - root_flag.c \ - salt.c \ - setugid.c \ - setupenv.c \ - shell.c \ - strtoday.c \ - sub.c \ - sulog.c \ - ttytype.c \ - tz.c \ - ulimit.c \ - user_busy.c \ - utmp.c \ - valid.c \ - xgetpwnam.c \ - xgetpwuid.c \ - xgetgrnam.c \ - xgetgrgid.c \ - xgetspnam.c \ - xmalloc.c \ - yesno.c - -if WITH_BTRFS -libmisc_la_SOURCES += btrfs.c -endif - diff --git a/libmisc/Makefile.in b/libmisc/Makefile.in deleted file mode 100644 index 2defd8e..0000000 --- a/libmisc/Makefile.in +++ /dev/null @@ -1,927 +0,0 @@ -# Makefile.in generated by automake 1.16.5 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2021 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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./$(DEPDIR)/hushed.Plo - -rm -f ./$(DEPDIR)/idmapping.Plo - -rm -f ./$(DEPDIR)/isexpired.Plo - -rm -f ./$(DEPDIR)/limits.Plo - -rm -f ./$(DEPDIR)/list.Plo - -rm -f ./$(DEPDIR)/log.Plo - -rm -f ./$(DEPDIR)/loginprompt.Plo - -rm -f ./$(DEPDIR)/mail.Plo - -rm -f ./$(DEPDIR)/motd.Plo - -rm -f ./$(DEPDIR)/myname.Plo - -rm -f ./$(DEPDIR)/obscure.Plo - -rm -f ./$(DEPDIR)/pam_pass.Plo - -rm -f ./$(DEPDIR)/pam_pass_non_interactive.Plo - -rm -f ./$(DEPDIR)/prefix_flag.Plo - -rm -f ./$(DEPDIR)/pwd2spwd.Plo - -rm -f ./$(DEPDIR)/pwd_init.Plo - -rm -f ./$(DEPDIR)/pwdcheck.Plo - -rm -f ./$(DEPDIR)/remove_tree.Plo - -rm -f ./$(DEPDIR)/rlogin.Plo - -rm -f ./$(DEPDIR)/root_flag.Plo - -rm -f ./$(DEPDIR)/salt.Plo - -rm -f ./$(DEPDIR)/setugid.Plo - -rm -f ./$(DEPDIR)/setupenv.Plo - -rm -f ./$(DEPDIR)/shell.Plo - -rm -f ./$(DEPDIR)/strtoday.Plo - -rm -f ./$(DEPDIR)/sub.Plo - -rm -f ./$(DEPDIR)/sulog.Plo - -rm -f ./$(DEPDIR)/ttytype.Plo - -rm -f ./$(DEPDIR)/tz.Plo - -rm -f ./$(DEPDIR)/ulimit.Plo - -rm -f ./$(DEPDIR)/user_busy.Plo - -rm -f ./$(DEPDIR)/utmp.Plo - -rm -f ./$(DEPDIR)/valid.Plo - -rm -f ./$(DEPDIR)/xgetgrgid.Plo - -rm -f ./$(DEPDIR)/xgetgrnam.Plo - -rm -f ./$(DEPDIR)/xgetpwnam.Plo - -rm -f ./$(DEPDIR)/xgetpwuid.Plo - -rm -f ./$(DEPDIR)/xgetspnam.Plo - -rm -f ./$(DEPDIR)/xmalloc.Plo - -rm -f ./$(DEPDIR)/yesno.Plo - -rm -f Makefile -maintainer-clean-am: distclean-am maintainer-clean-generic - -mostlyclean: mostlyclean-am - -mostlyclean-am: mostlyclean-compile mostlyclean-generic \ - mostlyclean-libtool - -pdf: pdf-am - -pdf-am: - -ps: ps-am - -ps-am: - -uninstall-am: - -.MAKE: install-am install-strip - -.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \ - clean-generic clean-libtool clean-noinstLTLIBRARIES \ - cscopelist-am ctags ctags-am distclean distclean-compile \ - distclean-generic distclean-libtool distclean-tags distdir dvi \ - dvi-am html html-am info info-am install install-am \ - install-data install-data-am install-dvi install-dvi-am \ - install-exec install-exec-am install-html install-html-am \ - install-info install-info-am install-man install-pdf \ - install-pdf-am install-ps install-ps-am install-strip \ - installcheck installcheck-am installdirs maintainer-clean \ - maintainer-clean-generic mostlyclean mostlyclean-compile \ - mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ - tags tags-am uninstall uninstall-am - -.PRECIOUS: Makefile - - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/libmisc/date_to_str.c b/libmisc/date_to_str.c deleted file mode 100644 index 07e99f1..0000000 --- a/libmisc/date_to_str.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * Copyright (c) 2021, Alejandro Colomar <alx.manpages@gmail.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the copyright holders or contributors may not be used to - * endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <string.h> -#include <time.h> - -#ident "$Id$" - -#include "prototypes.h" - -void date_to_str (size_t size, char buf[size], long date) -{ - time_t t; - - t = date; - if (date < 0) - (void) strncpy (buf, "never", size); - else - (void) strftime (buf, size, "%Y-%m-%d", gmtime (&t)); - buf[size - 1] = '\0'; -} diff --git a/libmisc/entry.c b/libmisc/entry.c deleted file mode 100644 index 87f5754..0000000 --- a/libmisc/entry.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko - * SPDX-FileCopyrightText: 2007 - 2008, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ident "$Id$" - -#include <sys/types.h> -#include <stdio.h> -#include "prototypes.h" -#include "defines.h" -#include <pwd.h> - -void pw_entry (const char *name, struct passwd *pwent) -{ - struct passwd *passwd; - - struct spwd *spwd; - - if (!(passwd = getpwnam (name))) { /* local, no need for xgetpwnam */ - pwent->pw_name = (char *) 0; - return; - } else { - pwent->pw_name = xstrdup (passwd->pw_name); - pwent->pw_uid = passwd->pw_uid; - pwent->pw_gid = passwd->pw_gid; - pwent->pw_gecos = xstrdup (passwd->pw_gecos); - pwent->pw_dir = xstrdup (passwd->pw_dir); - pwent->pw_shell = xstrdup (passwd->pw_shell); -#if !defined(AUTOSHADOW) - /* local, no need for xgetspnam */ - if ((spwd = getspnam (name))) { - pwent->pw_passwd = xstrdup (spwd->sp_pwdp); - return; - } -#endif - pwent->pw_passwd = xstrdup (passwd->pw_passwd); - } -} diff --git a/libmisc/getrange.c b/libmisc/getrange.c deleted file mode 100644 index 82f2edf..0000000 --- a/libmisc/getrange.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * SPDX-FileCopyrightText: 2008 , Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ident "$Id: $" - -#include <ctype.h> -#include <stdlib.h> - -#include "defines.h" -#include "prototypes.h" - -/* - * Parse a range and indicate if the range is valid. - * Valid ranges are in the form: - * <long> -> min=max=long has_min has_max - * -<long> -> max=long !has_min has_max - * <long>- -> min=long has_min !has_max - * <long1>-<long2> -> min=long1 max=long2 has_min has_max - * - * If the range is valid, getrange returns 1. - * If the range is not valid, getrange returns 0. - */ -int getrange (const char *range, - unsigned long *min, bool *has_min, - unsigned long *max, bool *has_max) -{ - char *endptr; - unsigned long n; - - if (NULL == range) { - return 0; - } - - if ('-' == range[0]) { - if (!isdigit(range[1])) { - /* invalid */ - return 0; - } - errno = 0; - n = strtoul (&range[1], &endptr, 10); - if (('\0' != *endptr) || (ERANGE == errno)) { - /* invalid */ - return 0; - } - /* -<long> */ - *has_min = false; - *has_max = true; - *max = n; - } else { - errno = 0; - n = strtoul (range, &endptr, 10); - if (ERANGE == errno) { - /* invalid */ - return 0; - } - switch (*endptr) { - case '\0': - /* <long> */ - *has_min = true; - *has_max = true; - *min = n; - *max = n; - break; - case '-': - endptr++; - if ('\0' == *endptr) { - /* <long>- */ - *has_min = true; - *has_max = false; - *min = n; - } else if (!isdigit (*endptr)) { - /* invalid */ - return 0; - } else { - *has_min = true; - *min = n; - errno = 0; - n = strtoul (endptr, &endptr, 10); - if ( ('\0' != *endptr) - || (ERANGE == errno)) { - /* invalid */ - return 0; - } - /* <long>-<long> */ - *has_max = true; - *max = n; - } - break; - default: - return 0; - } - } - - return 1; -} - diff --git a/libmisc/gettime.c b/libmisc/gettime.c deleted file mode 100644 index b288402..0000000 --- a/libmisc/gettime.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * SPDX-FileCopyrightText: 2017, Chris Lamb - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ident "$Id$" - -#include <errno.h> -#include <limits.h> -#include <stdio.h> -#include "defines.h" -#include "prototypes.h" -#include "shadowlog.h" - -/* - * gettime() returns the time as the number of seconds since the Epoch - * - * Like time(), gettime() returns the time as the number of seconds since the - * Epoch, 1970-01-01 00:00:00 +0000 (UTC), except that if the SOURCE_DATE_EPOCH - * environment variable is exported it will use that instead. - */ -/*@observer@*/time_t gettime () -{ - char *endptr; - char *source_date_epoch; - time_t fallback; - unsigned long long epoch; - FILE *shadow_logfd = log_get_logfd(); - - fallback = time (NULL); - source_date_epoch = shadow_getenv ("SOURCE_DATE_EPOCH"); - - if (!source_date_epoch) - return fallback; - - errno = 0; - epoch = strtoull (source_date_epoch, &endptr, 10); - if ((errno == ERANGE && (epoch == ULLONG_MAX || epoch == 0)) - || (errno != 0 && epoch == 0)) { - fprintf (shadow_logfd, - _("Environment variable $SOURCE_DATE_EPOCH: strtoull: %s\n"), - strerror(errno)); - } else if (endptr == source_date_epoch) { - fprintf (shadow_logfd, - _("Environment variable $SOURCE_DATE_EPOCH: No digits were found: %s\n"), - endptr); - } else if (*endptr != '\0') { - fprintf (shadow_logfd, - _("Environment variable $SOURCE_DATE_EPOCH: Trailing garbage: %s\n"), - endptr); - } else if (epoch > ULONG_MAX) { - fprintf (shadow_logfd, - _("Environment variable $SOURCE_DATE_EPOCH: value must be smaller than or equal to %lu but was found to be: %llu\n"), - ULONG_MAX, epoch); - } else if (epoch > fallback) { - fprintf (shadow_logfd, - _("Environment variable $SOURCE_DATE_EPOCH: value must be smaller than or equal to the current time (%lu) but was found to be: %llu\n"), - fallback, epoch); - } else { - /* Valid */ - return (time_t)epoch; - } - - return fallback; -} diff --git a/libmisc/loginprompt.c b/libmisc/loginprompt.c deleted file mode 100644 index 0a67f46..0000000 --- a/libmisc/loginprompt.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1989 - 1993, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko - * SPDX-FileCopyrightText: 2008 - 2011, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#ident "$Id$" - -#include <assert.h> -#include <stdio.h> -#include <signal.h> -#include <ctype.h> -#include "prototypes.h" -#include "defines.h" -#include "getdef.h" - -static void login_exit (unused int sig) -{ - exit (EXIT_FAILURE); -} - -/* - * login_prompt - prompt the user for their login name - * - * login_prompt() displays the standard login prompt. If ISSUE_FILE - * is set in login.defs, this file is displayed before the prompt. - */ - -void login_prompt (const char *prompt, char *name, int namesize) -{ - char buf[1024]; - -#define MAX_ENV 32 - char *envp[MAX_ENV]; - char *cp; - int i; - FILE *fp; - - sighandler_t sigquit; -#ifdef SIGTSTP - sighandler_t sigtstp; -#endif - - /* - * There is a small chance that a QUIT character will be part of - * some random noise during a prompt. Deal with this by exiting - * instead of core dumping. If SIGTSTP is defined, do the same - * thing for that signal. - */ - - sigquit = signal (SIGQUIT, login_exit); -#ifdef SIGTSTP - sigtstp = signal (SIGTSTP, login_exit); -#endif - - /* - * See if the user has configured the issue file to - * be displayed and display it before the prompt. - */ - - if (NULL != prompt) { - const char *fname = getdef_str ("ISSUE_FILE"); - if (NULL != fname) { - fp = fopen (fname, "r"); - if (NULL != fp) { - while ((i = getc (fp)) != EOF) { - (void) putc (i, stdout); - } - - (void) fclose (fp); - } - } - (void) gethostname (buf, sizeof buf); - printf (prompt, buf); - (void) fflush (stdout); - } - - /* - * Read the user's response. The trailing newline will be - * removed. - */ - - memzero (buf, sizeof buf); - if (fgets (buf, (int) sizeof buf, stdin) != buf) { - exit (EXIT_FAILURE); - } - - cp = strchr (buf, '\n'); - if (NULL == cp) { - exit (EXIT_FAILURE); - } - *cp = '\0'; /* remove \n [ must be there ] */ - - /* - * Skip leading whitespace. This makes " username" work right. - * Then copy the rest (up to the end or the first "non-graphic" - * character into the username. - */ - - for (cp = buf; *cp == ' ' || *cp == '\t'; cp++); - - for (i = 0; i < namesize - 1 && isgraph (*cp); name[i++] = *cp++); - while (isgraph (*cp)) { - cp++; - } - - if ('\0' != *cp) { - cp++; - } - - name[i] = '\0'; - - /* - * This is a disaster, at best. The user may have entered extra - * environmental variables at the prompt. There are several ways - * to do this, and I just take the easy way out. - */ - - if ('\0' != *cp) { /* process new variables */ - char *nvar; - int count = 1; - int envc; - - for (envc = 0; envc < MAX_ENV; envc++) { - nvar = strtok ((0 != envc) ? (char *) 0 : cp, " \t,"); - if (NULL == nvar) { - break; - } - if (strchr (nvar, '=') != NULL) { - envp[envc] = nvar; - } else { - size_t len = strlen (nvar) + 32; - envp[envc] = xmalloc (len); - (void) snprintf (envp[envc], len, - "L%d=%s", count++, nvar); - } - } - set_env (envc, envp); - } - - /* - * Set the SIGQUIT handler back to its original value - */ - - (void) signal (SIGQUIT, sigquit); -#ifdef SIGTSTP - (void) signal (SIGTSTP, sigtstp); -#endif -} - diff --git a/libmisc/strtoday.c b/libmisc/strtoday.c deleted file mode 100644 index d321873..0000000 --- a/libmisc/strtoday.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1991 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko - * SPDX-FileCopyrightText: 2008 , Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#if !defined(__GLIBC__) -#define _XOPEN_SOURCE 500 -#endif - -#include <config.h> - -#include <ctype.h> - -#ident "$Id$" - -#include "defines.h" -#include "prototypes.h" - -#ifndef USE_GETDATE -#define USE_GETDATE 1 -#endif - -#if USE_GETDATE -#include "getdate.h" -/* - * strtoday() now uses get_date() (borrowed from GNU shellutils) - * which can handle many date formats, for example: - * 1970-09-17 # ISO 8601. - * 70-9-17 # This century assumed by default. - * 70-09-17 # Leading zeros are ignored. - * 9/17/72 # Common U.S. writing. - * 24 September 1972 - * 24 Sept 72 # September has a special abbreviation. - * 24 Sep 72 # Three-letter abbreviations always allowed. - * Sep 24, 1972 - * 24-sep-72 - * 24sep72 - */ -long strtoday (const char *str) -{ - time_t t; - bool isnum = true; - const char *s = str; - - /* - * get_date() interprets an empty string as the current date, - * which is not what we expect, unless you're a BOFH :-). - * (useradd sets sp_expire = current date for new lusers) - */ - if ((NULL == str) || ('\0' == *str)) { - return -1; - } - - /* If a numerical value is provided, this is already a number of - * days since EPOCH. - */ - if ('-' == *s) { - s++; - } - while (' ' == *s) { - s++; - } - while (isnum && ('\0' != *s)) { - if (!isdigit (*s)) { - isnum = false; - } - s++; - } - if (isnum) { - long retdate; - if (getlong (str, &retdate) == 0) { - return -2; - } - return retdate; - } - - t = get_date (str, NULL); - if ((time_t) - 1 == t) { - return -2; - } - /* convert seconds to days since 1970-01-01 */ - return (long) (t + DAY / 2) / DAY; -} - -#else /* !USE_GETDATE */ -/* - * Old code, just in case get_date() doesn't work as expected... - */ -#include <stdio.h> -#ifdef HAVE_STRPTIME -/* - * for now we allow just one format, but we can define more later - * (we try them all until one succeeds). --marekm - */ -static const char *const date_formats[] = { - "%Y-%m-%d", - (char *) 0 -}; -#else -/* - * days and juldays are used to compute the number of days in the - * current month, and the cumulative number of days in the preceding - * months. they are declared so that january is 1, not 0. - */ -static const short days[13] = { 0, - 31, 28, 31, 30, 31, 30, /* JAN - JUN */ - 31, 31, 30, 31, 30, 31 -}; /* JUL - DEC */ - -static const short juldays[13] = { 0, - 0, 31, 59, 90, 120, 151, /* JAN - JUN */ - 181, 212, 243, 273, 304, 334 -}; /* JUL - DEC */ -#endif - -/* - * strtoday - compute the number of days since 1970. - * - * the total number of days prior to the current date is - * computed. january 1, 1970 is used as the origin with - * it having a day number of 0. - */ - -long strtoday (const char *str) -{ -#ifdef HAVE_STRPTIME - struct tm tp; - const char *const *fmt; - char *cp; - time_t result; - - memzero (&tp, sizeof tp); - for (fmt = date_formats; *fmt; fmt++) { - cp = strptime ((char *) str, *fmt, &tp); - if ((NULL == cp) || ('\0' != *cp)) { - continue; - } - - result = mktime (&tp); - if ((time_t) - 1 == result) { - continue; - } - - return (long) (result / DAY); /* success */ - } - return -1; -#else - char slop[2]; - int month; - int day; - int year; - long total; - - /* - * start by separating the month, day and year. the order - * is compiled in ... - */ - - if (sscanf (str, "%d/%d/%d%c", &year, &month, &day, slop) != 3) { - return -1; - } - - /* - * the month, day of the month, and year are checked for - * correctness and the year adjusted so it falls between - * 1970 and 2069. - */ - - if ((month < 1) || (month > 12)) { - return -1; - } - - if (day < 1) { - return -1; - } - - if ( ((2 != month) || ((year % 4) != 0)) - && (day > days[month])) { - return -1; - } else if ((month == 2) && ((year % 4) == 0) && (day > 29)) { - return -1; - } - - if (year < 0) { - return -1; - } else if (year <= 69) { - year += 2000; - } else if (year <= 99) { - year += 1900; - } - - /* - * On systems with 32-bit signed time_t, time wraps around in 2038 - * - for now we just limit the year to 2037 (instead of 2069). - * This limit can be removed once no one is using 32-bit systems - * anymore :-). --marekm - */ - if ((year < 1970) || (year > 2037)) { - return -1; - } - - /* - * the total number of days is the total number of days in all - * the whole years, plus the number of leap days, plus the - * number of days in the whole months preceding, plus the number - * of days so far in the month. - */ - - total = (long) ((year - 1970) * 365L) + (((year + 1) - 1970) / 4); - total += (long) juldays[month] + (month > 2 && (year % 4) == 0 ? 1 : 0); - total += (long) day - 1; - - return total; -#endif /* HAVE_STRPTIME */ -} -#endif /* !USE_GETDATE */ diff --git a/libmisc/utmp.c b/libmisc/utmp.c deleted file mode 100644 index 45b479f..0000000 --- a/libmisc/utmp.c +++ /dev/null @@ -1,474 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2001 - 2005, Tomasz Kłoczko - * SPDX-FileCopyrightText: 2008 - 2009, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <config.h> - -#include "defines.h" -#include "prototypes.h" - -#ifdef USE_UTMPX -#include <utmpx.h> -#else -#include <utmp.h> -#endif - -#include <assert.h> -#include <sys/param.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netdb.h> -#include <stdio.h> - -#ident "$Id$" - - -/* - * is_my_tty -- determine if "tty" is the same TTY stdin is using - */ -static bool is_my_tty (const char *tty) -{ - /* full_tty shall be at least sizeof utmp.ut_line + 5 */ - char full_tty[200]; - /* tmptty shall be bigger than full_tty */ - static char tmptty[sizeof (full_tty)+1]; - - if ('/' != *tty) { - (void) snprintf (full_tty, sizeof full_tty, "/dev/%s", tty); - tty = &full_tty[0]; - } - - if ('\0' == tmptty[0]) { - const char *tname = ttyname (STDIN_FILENO); - if (NULL != tname) { - (void) strncpy (tmptty, tname, sizeof tmptty); - tmptty[sizeof (tmptty) - 1] = '\0'; - } - } - - if ('\0' == tmptty[0]) { - (void) puts (_("Unable to determine your tty name.")); - exit (EXIT_FAILURE); - } else if (strncmp (tty, tmptty, sizeof (tmptty)) != 0) { - return false; - } else { - return true; - } -} - -/* - * get_current_utmp - return the most probable utmp entry for the current - * session - * - * The utmp file is scanned for an entry with the same process ID. - * The line entered by the *getty / telnetd, etc. should also match - * the current terminal. - * - * When an entry is returned by get_current_utmp, and if the utmp - * structure has a ut_id field, this field should be used to update - * the entry information. - * - * Return NULL if no entries exist in utmp for the current process. - */ -#ifndef USE_UTMPX -/*@null@*/ /*@only@*/struct utmp *get_current_utmp (void) -{ - struct utmp *ut; - struct utmp *ret = NULL; - - setutent (); - - /* First, try to find a valid utmp entry for this process. */ - while ((ut = getutent ()) != NULL) { - if ( (ut->ut_pid == getpid ()) -#ifdef HAVE_STRUCT_UTMP_UT_ID - && ('\0' != ut->ut_id[0]) -#endif -#ifdef HAVE_STRUCT_UTMP_UT_TYPE - && ( (LOGIN_PROCESS == ut->ut_type) - || (USER_PROCESS == ut->ut_type)) -#endif - /* A process may have failed to close an entry - * Check if this entry refers to the current tty */ - && is_my_tty (ut->ut_line)) { - break; - } - } - - if (NULL != ut) { - ret = (struct utmp *) xmalloc (sizeof (*ret)); - memcpy (ret, ut, sizeof (*ret)); - } - - endutent (); - - return ret; -} -#else -/*@null@*/ /*@only*/struct utmpx *get_current_utmp(void) -{ - struct utmpx *ut; - struct utmpx *ret = NULL; - - setutxent (); - - /* Find the utmpx entry for this PID. */ - while ((ut = getutxent ()) != NULL) { - if ( (ut->ut_pid == getpid ()) - && ('\0' != ut->ut_id[0]) - && ( (LOGIN_PROCESS == ut->ut_type) - || (USER_PROCESS == ut->ut_type)) - && is_my_tty (ut->ut_line)) { - break; - } - } - - if (NULL != ut) { - ret = (struct utmpx *) xmalloc (sizeof (*ret)); - memcpy (ret, ut, sizeof (*ret)); - } - - endutxent (); - - return ret; -} -#endif - - -#ifndef USE_PAM -/* - * Some systems already have updwtmp() and possibly updwtmpx(). Others - * don't, so we re-implement these functions if necessary. - */ -#ifndef HAVE_UPDWTMP -static void updwtmp (const char *filename, const struct utmp *ut) -{ - int fd; - - fd = open (filename, O_APPEND | O_WRONLY, 0); - if (fd >= 0) { - write (fd, (const char *) ut, sizeof (*ut)); - close (fd); - } -} -#endif /* ! HAVE_UPDWTMP */ - -#ifdef USE_UTMPX -#ifndef HAVE_UPDWTMPX -static void updwtmpx (const char *filename, const struct utmpx *utx) -{ - int fd; - - fd = open (filename, O_APPEND | O_WRONLY, 0); - if (fd >= 0) { - write (fd, (const char *) utx, sizeof (*utx)); - close (fd); - } -} -#endif /* ! HAVE_UPDWTMPX */ -#endif /* ! USE_UTMPX */ -#endif /* ! USE_PAM */ - - -#ifndef USE_UTMPX -/* - * prepare_utmp - prepare an utmp entry so that it can be logged in a - * utmp/wtmp file. - * - * It accepts an utmp entry in input (ut) to return an entry with - * the right ut_id. This is typically an entry returned by - * get_current_utmp - * If ut is NULL, ut_id will be forged based on the line argument. - * - * The ut_host field of the input structure may also be kept, and is - * used to define the ut_addr/ut_addr_v6 fields. (if these fields - * exist) - * - * Other fields are discarded and filed with new values (if they - * exist). - * - * The returned structure shall be freed by the caller. - */ -/*@only@*/struct utmp *prepare_utmp (const char *name, - const char *line, - const char *host, - /*@null@*/const struct utmp *ut) -{ - struct timeval tv; - char *hostname = NULL; - struct utmp *utent; - - assert (NULL != name); - assert (NULL != line); - - - - if ( (NULL != host) - && ('\0' != host[0])) { - hostname = (char *) xmalloc (strlen (host) + 1); - strcpy (hostname, host); -#ifdef HAVE_STRUCT_UTMP_UT_HOST - } else if ( (NULL != ut) - && ('\0' != ut->ut_host[0])) { - hostname = (char *) xmalloc (sizeof (ut->ut_host) + 1); - strncpy (hostname, ut->ut_host, sizeof (ut->ut_host)); - hostname[sizeof (ut->ut_host)] = '\0'; -#endif /* HAVE_STRUCT_UTMP_UT_HOST */ - } - - if (strncmp(line, "/dev/", 5) == 0) { - line += 5; - } - - - utent = (struct utmp *) xmalloc (sizeof (*utent)); - memzero (utent, sizeof (*utent)); - - - -#ifdef HAVE_STRUCT_UTMP_UT_TYPE - utent->ut_type = USER_PROCESS; -#endif /* HAVE_STRUCT_UTMP_UT_TYPE */ - utent->ut_pid = getpid (); - strncpy (utent->ut_line, line, sizeof (utent->ut_line) - 1); -#ifdef HAVE_STRUCT_UTMP_UT_ID - if (NULL != ut) { - strncpy (utent->ut_id, ut->ut_id, sizeof (utent->ut_id)); - } else { - /* XXX - assumes /dev/tty?? */ - strncpy (utent->ut_id, line + 3, sizeof (utent->ut_id) - 1); - } -#endif /* HAVE_STRUCT_UTMP_UT_ID */ -#ifdef HAVE_STRUCT_UTMP_UT_NAME - strncpy (utent->ut_name, name, sizeof (utent->ut_name)); -#endif /* HAVE_STRUCT_UTMP_UT_NAME */ -#ifdef HAVE_STRUCT_UTMP_UT_USER - strncpy (utent->ut_user, name, sizeof (utent->ut_user) - 1); -#endif /* HAVE_STRUCT_UTMP_UT_USER */ - if (NULL != hostname) { - struct addrinfo *info = NULL; -#ifdef HAVE_STRUCT_UTMP_UT_HOST - strncpy (utent->ut_host, hostname, sizeof (utent->ut_host) - 1); -#endif /* HAVE_STRUCT_UTMP_UT_HOST */ -#ifdef HAVE_STRUCT_UTMP_UT_SYSLEN - utent->ut_syslen = MIN (strlen (hostname), - sizeof (utent->ut_host)); -#endif /* HAVE_STRUCT_UTMP_UT_SYSLEN */ -#if defined(HAVE_STRUCT_UTMP_UT_ADDR) || defined(HAVE_STRUCT_UTMP_UT_ADDR_V6) - if (getaddrinfo (hostname, NULL, NULL, &info) == 0) { - /* getaddrinfo might not be reliable. - * Just try to log what may be useful. - */ - if (info->ai_family == AF_INET) { - struct sockaddr_in *sa = - (struct sockaddr_in *) info->ai_addr; -#ifdef HAVE_STRUCT_UTMP_UT_ADDR - memcpy (&(utent->ut_addr), - &(sa->sin_addr), - MIN (sizeof (utent->ut_addr), - sizeof (sa->sin_addr))); -#endif /* HAVE_STRUCT_UTMP_UT_ADDR */ -#ifdef HAVE_STRUCT_UTMP_UT_ADDR_V6 - memcpy (utent->ut_addr_v6, - &(sa->sin_addr), - MIN (sizeof (utent->ut_addr_v6), - sizeof (sa->sin_addr))); - } else if (info->ai_family == AF_INET6) { - struct sockaddr_in6 *sa = - (struct sockaddr_in6 *) info->ai_addr; - memcpy (utent->ut_addr_v6, - &(sa->sin6_addr), - MIN (sizeof (utent->ut_addr_v6), - sizeof (sa->sin6_addr))); -#endif /* HAVE_STRUCT_UTMP_UT_ADDR_V6 */ - } - freeaddrinfo (info); - } -#endif /* HAVE_STRUCT_UTMP_UT_ADDR || HAVE_STRUCT_UTMP_UT_ADDR_V6 */ - free (hostname); - } - /* ut_exit is only for DEAD_PROCESS */ - utent->ut_session = getsid (0); - if (gettimeofday (&tv, NULL) == 0) { -#ifdef HAVE_STRUCT_UTMP_UT_TIME - utent->ut_time = tv.tv_sec; -#endif /* HAVE_STRUCT_UTMP_UT_TIME */ -#ifdef HAVE_STRUCT_UTMP_UT_XTIME - utent->ut_xtime = tv.tv_usec; -#endif /* HAVE_STRUCT_UTMP_UT_XTIME */ -#ifdef HAVE_STRUCT_UTMP_UT_TV - utent->ut_tv.tv_sec = tv.tv_sec; - utent->ut_tv.tv_usec = tv.tv_usec; -#endif /* HAVE_STRUCT_UTMP_UT_TV */ - } - - return utent; -} - -/* - * setutmp - Update an entry in utmp and log an entry in wtmp - * - * Return 1 on failure and 0 on success. - */ -int setutmp (struct utmp *ut) -{ - int err = 0; - - assert (NULL != ut); - - setutent (); - if (pututline (ut) == NULL) { - err = 1; - } - endutent (); - -#ifndef USE_PAM - /* This is done by pam_lastlog */ - updwtmp (_WTMP_FILE, ut); -#endif /* ! USE_PAM */ - - return err; -} - -#else -/* - * prepare_utmpx - the UTMPX version for prepare_utmp - */ -/*@only@*/struct utmpx *prepare_utmpx (const char *name, - const char *line, - const char *host, - /*@null@*/const struct utmpx *ut) -{ - struct timeval tv; - char *hostname = NULL; - struct utmpx *utxent; - - assert (NULL != name); - assert (NULL != line); - - - - if ( (NULL != host) - && ('\0' != host[0])) { - hostname = (char *) xmalloc (strlen (host) + 1); - strcpy (hostname, host); -#ifdef HAVE_STRUCT_UTMP_UT_HOST - } else if ( (NULL != ut) - && (NULL != ut->ut_host) - && ('\0' != ut->ut_host[0])) { - hostname = (char *) xmalloc (sizeof (ut->ut_host) + 1); - strncpy (hostname, ut->ut_host, sizeof (ut->ut_host)); - hostname[sizeof (ut->ut_host)] = '\0'; -#endif /* HAVE_STRUCT_UTMP_UT_TYPE */ - } - - if (strncmp(line, "/dev/", 5) == 0) { - line += 5; - } - - utxent = (struct utmpx *) xmalloc (sizeof (*utxent)); - memzero (utxent, sizeof (*utxent)); - - - - utxent->ut_type = USER_PROCESS; - utxent->ut_pid = getpid (); - strncpy (utxent->ut_line, line, sizeof (utxent->ut_line)); - /* existence of ut->ut_id is enforced by configure */ - if (NULL != ut) { - strncpy (utxent->ut_id, ut->ut_id, sizeof (utxent->ut_id)); - } else { - /* XXX - assumes /dev/tty?? */ - strncpy (utxent->ut_id, line + 3, sizeof (utxent->ut_id)); - } -#ifdef HAVE_STRUCT_UTMPX_UT_NAME - strncpy (utxent->ut_name, name, sizeof (utxent->ut_name)); -#endif /* HAVE_STRUCT_UTMPX_UT_NAME */ - strncpy (utxent->ut_user, name, sizeof (utxent->ut_user)); - if (NULL != hostname) { - struct addrinfo *info = NULL; -#ifdef HAVE_STRUCT_UTMPX_UT_HOST - strncpy (utxent->ut_host, hostname, sizeof (utxent->ut_host)); -#endif /* HAVE_STRUCT_UTMPX_UT_HOST */ -#ifdef HAVE_STRUCT_UTMPX_UT_SYSLEN - utxent->ut_syslen = MIN (strlen (hostname), - sizeof (utxent->ut_host)); -#endif /* HAVE_STRUCT_UTMPX_UT_SYSLEN */ -#if defined(HAVE_STRUCT_UTMPX_UT_ADDR) || defined(HAVE_STRUCT_UTMPX_UT_ADDR_V6) - if (getaddrinfo (hostname, NULL, NULL, &info) == 0) { - /* getaddrinfo might not be reliable. - * Just try to log what may be useful. - */ - if (info->ai_family == AF_INET) { - struct sockaddr_in *sa = - (struct sockaddr_in *) info->ai_addr; -#ifdef HAVE_STRUCT_UTMPX_UT_ADDR - memcpy (&utxent->ut_addr, - &(sa->sin_addr), - MIN (sizeof (utxent->ut_addr), - sizeof (sa->sin_addr))); -#endif /* HAVE_STRUCT_UTMPX_UT_ADDR */ -#ifdef HAVE_STRUCT_UTMPX_UT_ADDR_V6 - memcpy (utxent->ut_addr_v6, - &(sa->sin_addr), - MIN (sizeof (utxent->ut_addr_v6), - sizeof (sa->sin_addr))); - } else if (info->ai_family == AF_INET6) { - struct sockaddr_in6 *sa = - (struct sockaddr_in6 *) info->ai_addr; - memcpy (utxent->ut_addr_v6, - &(sa->sin6_addr), - MIN (sizeof (utxent->ut_addr_v6), - sizeof (sa->sin6_addr))); -#endif /* HAVE_STRUCT_UTMPX_UT_ADDR_V6 */ - } - freeaddrinfo (info); - } -#endif /* HAVE_STRUCT_UTMPX_UT_ADDR || HAVE_STRUCT_UTMPX_UT_ADDR_V6 */ - free (hostname); - } - /* ut_exit is only for DEAD_PROCESS */ - utxent->ut_session = getsid (0); - if (gettimeofday (&tv, NULL) == 0) { -#ifdef HAVE_STRUCT_UTMPX_UT_TIME - utxent->ut_time = tv.tv_sec; -#endif /* HAVE_STRUCT_UTMPX_UT_TIME */ -#ifdef HAVE_STRUCT_UTMPX_UT_XTIME - utxent->ut_xtime = tv.tv_usec; -#endif /* HAVE_STRUCT_UTMPX_UT_XTIME */ - utxent->ut_tv.tv_sec = tv.tv_sec; - utxent->ut_tv.tv_usec = tv.tv_usec; - } - - return utxent; -} - -/* - * setutmpx - the UTMPX version for setutmp - */ -int setutmpx (struct utmpx *utx) -{ - int err = 0; - - assert (NULL != utx); - - setutxent (); - if (pututxline (utx) == NULL) { - err = 1; - } - endutxent (); - -#ifndef USE_PAM - /* This is done by pam_lastlog */ - updwtmpx (_WTMP_FILE "x", utx); -#endif /* ! USE_PAM */ - - return err; -} -#endif /* USE_UTMPX */ - diff --git a/libmisc/yesno.c b/libmisc/yesno.c deleted file mode 100644 index cfbe6ec..0000000 --- a/libmisc/yesno.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1992 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 2007 - 2008, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -/* - * Common code for yes/no prompting - * - * Used by pwck.c and grpck.c - */ - -#include <config.h> - -#ident "$Id$" - -#include <stdio.h> -#include "prototypes.h" - -/* - * yes_or_no - get answer to question from the user - * - * It returns false if no. - * - * If the read_only flag is set, it will print No, and will return - * false. - */ -bool yes_or_no (bool read_only) -{ - char buf[80]; - - /* - * In read-only mode all questions are answered "no". - */ - if (read_only) { - (void) puts (_("No")); - return false; - } - - /* - * Typically, there's a prompt on stdout, sometimes unflushed. - */ - (void) fflush (stdout); - - /* - * Get a line and see what the first character is. - */ - /* TODO: use gettext */ - if (fgets (buf, (int) sizeof buf, stdin) == buf) { - return buf[0] == 'y' || buf[0] == 'Y'; - } - - return false; -} - diff --git a/libsubid/Makefile.am b/libsubid/Makefile.am index 09ec341..b6488e7 100644 --- a/libsubid/Makefile.am +++ b/libsubid/Makefile.am @@ -8,7 +8,6 @@ MISCLIBS = \ $(LIBAUDIT) \ $(LIBSELINUX) \ $(LIBSEMANAGE) \ - $(LIBCRACK) \ $(LIBCRYPT_NOPAM) \ $(LIBSKEY) \ $(LIBMD) \ @@ -21,10 +20,8 @@ MISCLIBS = \ libsubid_la_LIBADD = \ $(top_builddir)/lib/libshadow.la \ - $(top_builddir)/libmisc/libmisc.la \ $(MISCLIBS) -ldl AM_CPPFLAGS = \ -I${top_srcdir}/lib \ - -I${top_srcdir}/libmisc \ -DLOCALEDIR=\"$(datadir)/locale\" diff --git a/libsubid/Makefile.in b/libsubid/Makefile.in index ed8dc94..1cc025d 100644 --- a/libsubid/Makefile.in +++ b/libsubid/Makefile.in @@ -143,9 +143,9 @@ am__DEPENDENCIES_2 = $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \ - $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) + $(am__DEPENDENCIES_1) libsubid_la_DEPENDENCIES = $(top_builddir)/lib/libshadow.la \ - $(top_builddir)/libmisc/libmisc.la $(am__DEPENDENCIES_2) + $(am__DEPENDENCIES_2) am_libsubid_la_OBJECTS = api.lo libsubid_la_OBJECTS = $(am_libsubid_la_OBJECTS) AM_V_lt = $(am__v_lt_@AM_V@) @@ -229,6 +229,8 @@ AWK = @AWK@ CC = @CC@ CCDEPMODE = @CCDEPMODE@ CFLAGS = @CFLAGS@ +CMOCKA_CFLAGS = @CMOCKA_CFLAGS@ +CMOCKA_LIBS = @CMOCKA_LIBS@ CPP = @CPP@ CPPFLAGS = @CPPFLAGS@ CSCOPE = @CSCOPE@ @@ -247,6 +249,7 @@ EGREP = @EGREP@ ETAGS = @ETAGS@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +FILECMD = @FILECMD@ GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@ GMSGFMT = @GMSGFMT@ GMSGFMT_015 = @GMSGFMT_015@ @@ -262,9 +265,15 @@ INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@ LD = @LD@ LDFLAGS = @LDFLAGS@ LIBACL = @LIBACL@ +LIBADD_DL = @LIBADD_DL@ +LIBADD_DLD_LINK = @LIBADD_DLD_LINK@ +LIBADD_DLOPEN = @LIBADD_DLOPEN@ +LIBADD_SHL_LOAD = @LIBADD_SHL_LOAD@ LIBATTR = @LIBATTR@ LIBAUDIT = @LIBAUDIT@ -LIBCRACK = @LIBCRACK@ +LIBBSD = @LIBBSD@ +LIBBSD_CFLAGS = @LIBBSD_CFLAGS@ +LIBBSD_LIBS = @LIBBSD_LIBS@ LIBCRYPT = @LIBCRYPT@ LIBECONF = @LIBECONF@ LIBICONV = @LIBICONV@ @@ -280,6 +289,7 @@ LIBSUBID_ABI = @LIBSUBID_ABI@ LIBSUBID_ABI_MAJOR = @LIBSUBID_ABI_MAJOR@ LIBSUBID_ABI_MICRO = @LIBSUBID_ABI_MICRO@ LIBSUBID_ABI_MINOR = @LIBSUBID_ABI_MINOR@ +LIBSYSTEMD = @LIBSYSTEMD@ LIBTCB = @LIBTCB@ LIBTOOL = @LIBTOOL@ LIPO = @LIPO@ @@ -288,6 +298,8 @@ LN_S = @LN_S@ LTLIBICONV = @LTLIBICONV@ LTLIBINTL = @LTLIBINTL@ LTLIBOBJS = @LTLIBOBJS@ +LT_DLLOADERS = @LT_DLLOADERS@ +LT_DLPREOPEN = @LT_DLPREOPEN@ LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@ MAINT = @MAINT@ MAKEINFO = @MAKEINFO@ @@ -310,6 +322,9 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@ PACKAGE_URL = @PACKAGE_URL@ PACKAGE_VERSION = @PACKAGE_VERSION@ PATH_SEPARATOR = @PATH_SEPARATOR@ +PKG_CONFIG = @PKG_CONFIG@ +PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@ +PKG_CONFIG_PATH = @PKG_CONFIG_PATH@ POSUB = @POSUB@ RANLIB = @RANLIB@ SED = @SED@ @@ -389,7 +404,6 @@ MISCLIBS = \ $(LIBAUDIT) \ $(LIBSELINUX) \ $(LIBSEMANAGE) \ - $(LIBCRACK) \ $(LIBCRYPT_NOPAM) \ $(LIBSKEY) \ $(LIBMD) \ @@ -402,12 +416,10 @@ MISCLIBS = \ libsubid_la_LIBADD = \ $(top_builddir)/lib/libshadow.la \ - $(top_builddir)/libmisc/libmisc.la \ $(MISCLIBS) -ldl AM_CPPFLAGS = \ -I${top_srcdir}/lib \ - -I${top_srcdir}/libmisc \ -DLOCALEDIR=\"$(datadir)/locale\" all: all-am @@ -499,22 +511,25 @@ $(am__depfiles_remade): am--depfiles: $(am__depfiles_remade) .c.o: -@am__fastdepCC_TRUE@ $(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $< -@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po +@am__fastdepCC_TRUE@ $(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\ +@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\ +@am__fastdepCC_TRUE@ $(am__mv) $$depbase.Tpo $$depbase.Po @AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@ @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ @am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $< .c.obj: -@am__fastdepCC_TRUE@ $(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'` -@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po +@am__fastdepCC_TRUE@ $(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\ +@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\ +@am__fastdepCC_TRUE@ $(am__mv) $$depbase.Tpo $$depbase.Po @AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@ @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ @am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'` .c.lo: -@am__fastdepCC_TRUE@ $(AM_V_CC)$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $< -@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo +@am__fastdepCC_TRUE@ $(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\ +@am__fastdepCC_TRUE@ $(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\ +@am__fastdepCC_TRUE@ $(am__mv) $$depbase.Tpo $$depbase.Plo @AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@ @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ @am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $< diff --git a/libsubid/api.c b/libsubid/api.c index 00da74f..65d20ab 100644 --- a/libsubid/api.c +++ b/libsubid/api.c @@ -66,12 +66,12 @@ int get_subid_owner(unsigned long id, enum subid_type id_type, uid_t **owner) int subid_get_uid_owners(uid_t uid, uid_t **owner) { - return get_subid_owner((unsigned long)uid, ID_TYPE_UID, owner); + return get_subid_owner(uid, ID_TYPE_UID, owner); } int subid_get_gid_owners(gid_t gid, uid_t **owner) { - return get_subid_owner((unsigned long)gid, ID_TYPE_GID, owner); + return get_subid_owner(gid, ID_TYPE_GID, owner); } static |