diff options
Diffstat (limited to 'm4/sudo.m4')
| -rw-r--r-- | m4/sudo.m4 | 682 |
1 files changed, 682 insertions, 0 deletions
diff --git a/m4/sudo.m4 b/m4/sudo.m4 new file mode 100644 index 0000000..21a43a0 --- /dev/null +++ b/m4/sudo.m4 @@ -0,0 +1,682 @@ +dnl Local m4 macros for autoconf (used by sudo) +dnl +dnl SPDX-License-Identifier: ISC +dnl +dnl Copyright (c) 1994-1996, 1998-2005, 2007-2022 +dnl Todd C. Miller <Todd.Miller@sudo.ws> +dnl +dnl Permission to use, copy, modify, and distribute this software for any +dnl purpose with or without fee is hereby granted, provided that the above +dnl copyright notice and this permission notice appear in all copies. +dnl +dnl THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +dnl WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +dnl MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +dnl ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +dnl WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +dnl ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +dnl OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +dnl + +dnl +dnl check for sendmail in well-known locations +dnl +AC_ARG_VAR([SENDMAILPROG], [The fully-qualified path to the sendmail program to use.]) +AC_DEFUN([SUDO_PROG_SENDMAIL], [ + AC_PATH_PROG([SENDMAILPROG], [sendmail], [], [/usr/sbin$PATH_SEPARATOR/usr/lib$PATH_SEPARATOR/usr/etc$PATH_SEPARATOR/usr/ucblib$PATH_SEPARATOR/usr/local/lib$PATH_SEPARATOR/usr/local/bin]) + test -n "${ac_cv_path_SENDMAILPROG}" && SUDO_DEFINE_UNQUOTED(_PATH_SUDO_SENDMAIL, "${ac_cv_path_SENDMAILPROG}") +])dnl + +dnl +dnl check for vi in well-known locations +dnl +AC_ARG_VAR([VIPROG], [The fully-qualified path to the vi program to use.]) +AC_DEFUN([SUDO_PROG_VI], [ + AC_PATH_PROG([VIPROG], [vi], [], [/usr/bin$PATH_SEPARATOR/bin$PATH_SEPARATOR/usr/ucb$PATH_SEPARATOR/usr/bsd$PATH_SEPARATOR/usr/local/bin]) + test -n "${ac_cv_path_VIPROG}" && SUDO_DEFINE_UNQUOTED(_PATH_VI, "${ac_cv_path_VIPROG}") +])dnl + +dnl +dnl check for mv in well-known locations +dnl +AC_ARG_VAR([MVPROG], [The fully-qualified path to the mv program to use.]) +AC_DEFUN([SUDO_PROG_MV], [ + AC_PATH_PROG([MVPROG], [mv], [], [/usr/bin$PATH_SEPARATOR/bin$PATH_SEPARATOR/usr/ucb$PATH_SEPARATOR/usr/local/bin]) + test -n "${ac_cv_path_MVPROG}" && SUDO_DEFINE_UNQUOTED(_PATH_MV, "${ac_cv_path_MVPROG}") +])dnl + +dnl +dnl check for bourne shell in well-known locations +dnl +AC_ARG_VAR([BSHELLPROG], [The fully-qualified path to the Bourne shell to use.]) +AC_DEFUN([SUDO_PROG_BSHELL], [ + AC_PATH_PROG([BSHELLPROG], [sh], [/usr/bin$PATH_SEPARATOR/bin$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin]) + test -n "${ac_cv_path_BSHELLPROG}" && SUDO_DEFINE_UNQUOTED(_PATH_BSHELL, "${ac_cv_path_BSHELLPROG}") +])dnl + +dnl +dnl Check for path to utmp file if not using getutid(), etc. +dnl +AC_DEFUN([SUDO_PATH_UTMP], [ + AC_CACHE_CHECK([for utmp file path], [sudo_cv_path_UTMP], [ + sudo_cv_path_UTMP=no + for p in "/var/run/utmp" "/var/adm/utmp" "/etc/utmp"; do + if test -r "$p"; then + sudo_cv_path_UTMP="$p" + break + fi + done + ]) + if test X"$sudo_cv_path_UTMP" != X"no"; then + SUDO_DEFINE_UNQUOTED(_PATH_UTMP, "$sudo_cv_path_UTMP") + fi +]) + +dnl +dnl Where the log file goes, use /var/log if it exists, else /{var,usr}/adm +dnl +AC_DEFUN([SUDO_LOGFILE], [ + if test -n "$with_logpath"; then + logpath="$with_logpath" + else + AC_CACHE_CHECK([for log file location], [sudo_cv_log_path], [ + # Default value of logpath set in configure.ac + sudo_cv_log_path="$logpath" + for d in /var/log /var/adm /usr/adm; do + if test -d "$d"; then + sudo_cv_log_path="$d/sudo.log" + break + fi + done + ]) + logpath="$sudo_cv_log_path" + fi + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_LOGFILE, "$logpath") +]) + +dnl +dnl Detect time zone file directory, if any. +dnl +AC_DEFUN([SUDO_TZDIR], [ + if test -n "$with_tzdir"; then + tzdir="$with_tzdir" + else + AC_CACHE_CHECK([time zone data directory], [sudo_cv_tz_dir], [ + sudo_cv_tz_dir=no + for d in /usr/share /usr/share/lib /usr/lib /etc; do + if test -d "$d/zoneinfo"; then + sudo_cv_tz_dir="$d/zoneinfo" + break + fi + done + ]) + tzdir="$sudo_cv_tz_dir" + fi + if test X"$tzdir" != X"no"; then + SUDO_DEFINE_UNQUOTED(_PATH_ZONEINFO, "$tzdir") + fi +]) + +dnl +dnl Parent directory for time stamp dir. +dnl +AC_DEFUN([SUDO_RUNDIR], [ + if test -n "$with_rundir"; then + rundir="$with_rundir" + elif test -n "$runstatedir" && test "$runstatedir" != '${localstatedir}/run'; then + rundir="$runstatedir/sudo" + else + # No --with-rundir or --runstatedir specified + AC_CACHE_CHECK([for sudo run dir location], [sudo_cv_run_dir], [ + sudo_cv_run_dir=no + for d in /run /var/run /var/db /var/lib /var/adm /usr/adm; do + if test -d "$d"; then + sudo_cv_run_dir="$d/sudo" + break + fi + done + ]) + rundir="$sudo_cv_run_dir" + fi + if test X"$rundir" != X"no"; then + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_TIMEDIR, "$rundir/ts") + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_LOGSRVD_PID, "$rundir/sudo_logsrvd.pid") + fi +]) + +dnl +dnl Parent directory for the lecture status dir. +dnl +AC_DEFUN([SUDO_VARDIR], [ + if test -n "$with_vardir"; then + vardir="$with_vardir" + else + AC_CACHE_CHECK([for sudo var dir location], [sudo_cv_var_dir], [ + sudo_cv_var_dir=no + for d in /var/db /var/lib /var/adm /usr/adm; do + if test -d "$d"; then + sudo_cv_var_dir="$d/sudo" + break + fi + done + ]) + vardir="$sudo_cv_var_dir" + fi + if test X"$vardir" != X"no"; then + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_LECTURE_DIR, "$vardir/lectured") + fi +]) + +dnl +dnl Where the sudo_logsrvd relay temporary log files go, use +dnl /var/log/sudo_logsrvd if /var/log exists, else +dnl /{var,usr}/adm/sudo_logsrvd +dnl +AC_DEFUN([SUDO_RELAY_DIR], [ + if test "${with_relaydir-yes}" != "yes"; then + relay_dir="$with_relaydir" + else + AC_CACHE_CHECK([for sudo_logsrvd relay dir location], [sudo_cv_relay_dir], [ + # Default value of relay_dir set in configure.ac + sudo_cv_relay_dir="$relay_dir" + for d in /var/log /var/adm /usr/adm; do + if test -d "$d"; then + sudo_cv_relay_dir="$d/sudo_logsrvd" + break + fi + done + ]) + relay_dir="$sudo_cv_relay_dir" + fi + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_RELAY_DIR, "$relay_dir") +]) + +dnl +dnl Where the I/O log files go, use /var/log/sudo-io if +dnl /var/log exists, else /{var,usr}/adm/sudo-io +dnl +AC_DEFUN([SUDO_IO_LOGDIR], [ + if test "${with_iologdir-yes}" != "yes"; then + iolog_dir="$with_iologdir" + else + AC_CACHE_CHECK([for I/O log dir location], [sudo_cv_iolog_dir], [ + # Default value of iolog_dir set in configure.ac + sudo_cv_iolog_dir="$iolog_dir" + for d in /var/log /var/adm /usr/adm; do + if test -d "$d"; then + sudo_cv_iolog_dir="$d/sudo-io" + break + fi + done + ]) + iolog_dir="$sudo_cv_iolog_dir" + fi + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_IO_LOGDIR, "$iolog_dir") +]) + +dnl +dnl Where the log files go, use /var/log if it exists, else /{var,usr}/adm +dnl +AC_DEFUN([SUDO_LOGDIR], [ + if test "${with_logdir-yes}" != "yes"; then + log_dir="$with_logdir" + else + AC_CACHE_CHECK([for log dir location], [sudo_cv_log_dir], [ + # Default value of log_dir set in configure.ac + sudo_cv_log_dir="$log_dir" + for d in /var/log /var/adm /usr/adm; do + if test -d "$d"; then + sudo_cv_log_dir="$d" + break + fi + done + ]) + log_dir="$sudo_cv_log_dir" + fi + SUDO_DEFINE_UNQUOTED(_PATH_SUDO_LOGDIR, "$log_dir") +]) + +dnl +dnl check for working fnmatch(3) +dnl +AC_DEFUN([SUDO_FUNC_FNMATCH], [ + AC_CACHE_CHECK([for working fnmatch with FNM_CASEFOLD], + sudo_cv_func_fnmatch, [ + AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <fnmatch.h> +int main() { return(fnmatch("/*/bin/echo *", "/usr/bin/echo just a test", FNM_CASEFOLD)); }]])], [sudo_cv_func_fnmatch=yes], [sudo_cv_func_fnmatch=no], [sudo_cv_func_fnmatch=no]) + ]) + AS_IF([test $sudo_cv_func_fnmatch = yes], [$1], [$2]) +]) + +dnl +dnl Attempt to check for working PIE support. +dnl This is a bit of a hack but on Solaris 10 with GNU ld and GNU as +dnl we can end up with strange values from malloc(). +dnl A better check would be to verify that ASLR works with PIE. +dnl +AC_DEFUN([SUDO_WORKING_PIE], [ + AC_CACHE_CHECK([for working PIE support], sudo_cv_working_pie, [ + AC_RUN_IFELSE([AC_LANG_SOURCE([AC_INCLUDES_DEFAULT +int main() { char *p = malloc(1024); if (p == NULL) return 1; memset(p, 0, 1024); return 0; }])], [sudo_cv_working_pie=yes], [sudo_cv_working_pie=no], [sudo_cv_working_pie=no]) + ]) + AS_IF([test $sudo_cv_working_pie = yes], [$1], [$2]) +]) + +dnl +dnl check for isblank(3) +dnl +AC_DEFUN([SUDO_FUNC_ISBLANK], + [AC_CACHE_CHECK([for isblank], [sudo_cv_func_isblank], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ctype.h>]], [[return (isblank('a'));]])], + [sudo_cv_func_isblank=yes], [sudo_cv_func_isblank=no])]) +] [ + if test "$sudo_cv_func_isblank" = "yes"; then + AC_DEFINE(HAVE_ISBLANK, 1, [Define if you have isblank(3).]) + else + AC_LIBOBJ(isblank) + SUDO_APPEND_COMPAT_EXP(isblank) + fi +]) + +AC_DEFUN([SUDO_CHECK_LIB], [ + _sudo_check_lib_extras=`echo "$5"|sed -e 's/[ ]*//g' -e 's/-l/_/g'` + AC_MSG_CHECKING([for $2 in -l$1${5+ }$5]) + AC_CACHE_VAL([sudo_cv_lib_$1''_$2$_sudo_check_lib_extras], [ + SUDO_CHECK_LIB_OLIBS="$LIBS" + LIBS="$LIBS -l$1${5+ }$5" + AC_LINK_IFELSE( + [AC_LANG_CALL([], [$2])], + [eval sudo_cv_lib_$1''_$2$_sudo_check_lib_extras=yes], + [eval sudo_cv_lib_$1''_$2$_sudo_check_lib_extras=no] + ) + LIBS="$SUDO_CHECK_LIB_OLIBS" + ]) + if eval test \$sudo_cv_lib_$1''_$2$_sudo_check_lib_extras = "yes"; then + AC_MSG_RESULT([yes]) + $3 + else + AC_MSG_RESULT([no]) + $4 + fi +]) + +AC_DEFUN([SUDO_CHECK_NET_FUNC], [ + _LIBS="$LIBS" + LIBS="${LIBS} ${NET_LIBS}" + found=true + AC_CHECK_FUNC([$1], [$2], [ + # Look for $1 in network libraries appending to NET_LIBS as needed. + # May need to link with -lnsl and -lsocket due to unresolved symbols + found=false + for libs in "-lsocket" "-linet" "-lsocket -lnsl" "-lresolv"; do + _libs= + for lib in $libs; do + case "$NET_LIBS" in + *"$lib"*) ;; + *) _libs="$_libs $lib";; + esac + done + libs="${_libs# }" + test -z "$libs" && continue + lib="`echo \"$libs\"|sed -e 's/^-l//' -e 's/ .*$//'`" + extralibs="`echo \"$libs\"|sed 's/^-l[[^ ]]*//'`" + SUDO_CHECK_LIB($lib, $1, [ + found=true + NET_LIBS="${NET_LIBS}${NET_LIBS+ }$libs" + INET_PTON_LIBS="$libs" + case "$libs" in + *-lresolv*) + AC_DEFINE(NEED_RESOLV_H) + ;; + esac + break + ], [], [$extralibs]) + done + ]) + LIBS="$_LIBS" + AS_IF([test $found = true], [$2], [$3]) +]) + +dnl +dnl check unsetenv() return value +dnl +AC_DEFUN([SUDO_FUNC_UNSETENV_VOID], + [AC_CACHE_CHECK([whether unsetenv returns void], [sudo_cv_func_unsetenv_void], + [AC_RUN_IFELSE([AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT + int unsetenv(); + ], [ + [return unsetenv("FOO") != 0;] + ]) + ], + [sudo_cv_func_unsetenv_void=no], + [sudo_cv_func_unsetenv_void=yes], + [sudo_cv_func_unsetenv_void=no])]) + if test $sudo_cv_func_unsetenv_void = yes; then + AC_DEFINE(UNSETENV_VOID, 1, + [Define to 1 if the 'unsetenv' function returns void instead of 'int'.]) + fi + ]) + +dnl +dnl check putenv() argument for const +dnl +AC_DEFUN([SUDO_FUNC_PUTENV_CONST], +[AC_CACHE_CHECK([whether putenv takes a const argument], +sudo_cv_func_putenv_const, +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT +int putenv(const char *string) {return 0;}], [])], + [sudo_cv_func_putenv_const=yes], + [sudo_cv_func_putenv_const=no]) + ]) + if test $sudo_cv_func_putenv_const = yes; then + AC_DEFINE(PUTENV_CONST, const, [Define to const if the 'putenv' takes a const argument.]) + else + AC_DEFINE(PUTENV_CONST, []) + fi +]) + +dnl +dnl check whether au_close() takes 3 or 4 arguments +dnl +AC_DEFUN([SUDO_FUNC_AU_CLOSE_SOLARIS11], +[AC_CACHE_CHECK([whether au_close() takes 4 arguments], +sudo_cv_func_au_close_solaris11, +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT +#include <bsm/audit.h> +#include <bsm/libbsm.h> +#include <bsm/audit_uevents.h> + +int au_close(int d, int keep, au_event_t event, au_emod_t emod) {return 0;}], [])], + [sudo_cv_func_au_close_solaris11=yes], + [sudo_cv_func_au_close_solaris11=no]) + ]) + if test $sudo_cv_func_au_close_solaris11 = yes; then + AC_DEFINE(HAVE_AU_CLOSE_SOLARIS11, 1, [Define to 1 if the 'au_close' functions takes 4 arguments like Solaris 11.]) + fi +]) + +dnl +dnl Check if the data argument for the sha2 functions is void * or u_char * +dnl +AC_DEFUN([SUDO_FUNC_SHA2_VOID_PTR], +[AC_CACHE_CHECK([whether the data argument of SHA224Update() is void *], +sudo_cv_func_sha2_void_ptr, +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT +#include <sha2.h> +void SHA224Update(SHA2_CTX *context, const void *data, size_t len) {return;}], [])], + [sudo_cv_func_sha2_void_ptr=yes], + [sudo_cv_func_sha2_void_ptr=no]) + ]) + if test $sudo_cv_func_sha2_void_ptr = yes; then + AC_DEFINE(SHA2_VOID_PTR, 1, + [Define to 1 if the sha2 functions use 'const void *' instead of 'const unsigned char'.]) + fi +]) + +dnl +dnl check for sa_len field in struct sockaddr +dnl +AC_DEFUN([SUDO_SOCK_SA_LEN], [ + AC_CHECK_MEMBER([struct sockaddr.sa_len], + [AC_DEFINE(HAVE_STRUCT_SOCKADDR_SA_LEN, 1, [Define if your struct sockaddr has an sa_len field.])], + [], [ +# include <sys/types.h> +# include <sys/socket.h>] + )] +) + +dnl +dnl check for sin_len field in struct sockaddr_in +dnl +AC_DEFUN([SUDO_SOCK_SIN_LEN], [ + AC_CHECK_MEMBER([struct sockaddr_in.sin_len], + [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN_SIN_LEN, 1, [Define if your struct sockaddr_in has a sin_len field.])], + [], [ +# include <sys/types.h> +# include <sys/socket.h>] + )] +) + +dnl +dnl check for max length of uid_t in string representation. +dnl we can't really trust UID_MAX or MAXUID since they may exist +dnl only for backward compatibility. +dnl +AC_DEFUN([SUDO_UID_T_LEN], +[AC_REQUIRE([AC_TYPE_UID_T]) +AC_CACHE_CHECK([max length of uid_t], sudo_cv_uid_t_len, [ +rm -f conftestdata +AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +#include <pwd.h> +#include <limits.h> +#include <sys/types.h> +int main() { + FILE *f; + char b[1024]; + uid_t u = (uid_t) -1; + + if ((f = fopen("conftestdata", "w")) == NULL) + return(1); + + (void) sprintf(b, "%lu", (unsigned long) u); + (void) fprintf(f, "%d\n", (int)strlen(b)); + (void) fclose(f); + return(0); +}]])], [sudo_cv_uid_t_len=`cat conftestdata`], [sudo_cv_uid_t_len=10], [sudo_cv_uid_t_len=10]) +]) +rm -f conftestdata +AC_DEFINE_UNQUOTED(MAX_UID_T_LEN, $sudo_cv_uid_t_len, [Define to the max length of a uid_t in string context (excluding the NUL).]) +]) + +dnl +dnl There are three different utmp variants we need to check for. +dnl SUDO_CHECK_UTMP_MEMBERS(utmp_type) +dnl +AC_DEFUN([SUDO_CHECK_UTMP_MEMBERS], [ + dnl + dnl Check for utmp/utmpx/utmps struct members. + dnl + AC_CHECK_MEMBER([struct $1.ut_id], [ + AC_DEFINE(HAVE_STRUCT_UTMP_UT_ID, 1, [Define to 1 if 'ut_id' is a member of 'struct utmp'.]) + ], [], [ +# include <sys/types.h> +# include <$1.h> + ]) + AC_CHECK_MEMBER([struct $1.ut_pid], [ + AC_DEFINE(HAVE_STRUCT_UTMP_UT_PID, 1, [Define to 1 if 'ut_pid' is a member of 'struct utmp'.]) + ], [], [ +# include <sys/types.h> +# include <$1.h> + ]) + AC_CHECK_MEMBER([struct $1.ut_tv], [ + AC_DEFINE(HAVE_STRUCT_UTMP_UT_TV, 1, [Define to 1 if 'ut_tv' is a member of 'struct utmp'.]) + ], [], [ +# include <sys/types.h> +# include <$1.h> + ]) + AC_CHECK_MEMBER([struct $1.ut_type], [ + AC_DEFINE(HAVE_STRUCT_UTMP_UT_TYPE, 1, [Define to 1 if 'ut_type' is a member of 'struct utmp'.]) + ], [], [ +# include <sys/types.h> +# include <$1.h> + ]) + dnl + dnl Older struct utmp has ut_name instead of ut_user + dnl + if test "$1" = "utmp"; then + AC_CHECK_MEMBERS([struct utmp.ut_user], [], [], [ +# include <sys/types.h> +# include <$1.h> + ]) + fi + dnl + dnl Check for ut_exit.__e_termination first, then ut_exit.e_termination + dnl We need to have already defined _GNU_SOURCE on glibc which only has + dnl __e_termination visible when _GNU_SOURCE is *not* defined. + dnl + AC_CHECK_MEMBER([struct $1.ut_exit.__e_termination], [ + AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT, 1, [Define to 1 if 'ut_exit' is a member of 'struct utmp'.]) + AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT___E_TERMINATION, 1, [Define to 1 if 'ut_exit.__e_termination' is a member of 'struct utmp'.]) + ], [ + AC_CHECK_MEMBER([struct $1.ut_exit.e_termination], [ + AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT, 1, [Define to 1 if 'ut_exit' is a member of 'struct utmp'.]) + AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT_E_TERMINATION, 1, [Define to 1 if 'ut_exit.e_termination' is a member of 'struct utmp'.]) + ], [], [ +# include <sys/types.h> +# include <$1.h> + ]) + ], [ +# include <sys/types.h> +# include <$1.h> + ]) +]) + +dnl +dnl Append a libpath to an LDFLAGS style variable if not already present. +dnl Also appends to the _R version unless rpath is disabled. +dnl +AC_DEFUN([SUDO_APPEND_LIBPATH], [ + AX_APPEND_FLAG([-L$2], [$1]) + if test X"$enable_rpath" = X"yes"; then + AX_APPEND_FLAG([-R$2], [$1_R]) + fi +]) + +dnl +dnl Append one or more symbols to COMPAT_EXP +dnl +AC_DEFUN([SUDO_APPEND_COMPAT_EXP], [ + for _sym in $1; do + COMPAT_EXP="${COMPAT_EXP}${_sym} +" + done +]) + +dnl +dnl +dnl Append one or more symbols to INTERCEPT_EXP +dnl +AC_DEFUN([SUDO_APPEND_INTERCEPT_EXP], [ + for _sym in $1; do + INTERCEPT_EXP="${INTERCEPT_EXP}${_sym} +" + done +]) + +dnl +dnl Determine the mail spool location +dnl NOTE: must be run *after* check for paths.h +dnl +AC_DEFUN([SUDO_MAILDIR], [ + AC_CACHE_CHECK([for the user mail spool directory], [sudo_cv_mail_dir], [ + sudo_cv_mail_dir=no + if test X"$ac_cv_header_paths_h" = X"yes"; then + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT +#include <paths.h>], + [char *p = _PATH_MAILDIR;])], [sudo_cv_mail_dir="paths.h"], []) + fi + if test $sudo_cv_mail_dir = no; then + # Solaris has maillock.h which defines MAILDIR + AC_CHECK_HEADERS(maillock.h, [ + sudo_cv_mail_dir=maillock.h + ], [ + sudo_cv_mail_dir=/var/mail + for d in /var/mail /var/spool/mail /usr/spool/mail; do + if test -d "$d"; then + sudo_cv_mail_dir="$d" + break + fi + done + ]) + fi + ]) + case "$sudo_cv_mail_dir" in + paths.h) + # _PATH_MAILDIR already present in paths.h. + ;; + maillock.h) + # Use MAILDIR from maillock.h + SUDO_DEFINE(_PATH_MAILDIR, MAILDIR) + AC_DEFINE(HAVE_MAILLOCK_H) + ;; + *) + SUDO_DEFINE_UNQUOTED(_PATH_MAILDIR, "$sudo_cv_mail_dir") + ;; + esac +]) + +dnl +dnl Create PVS-Studio.cfg for supported platforms or throw an error. +dnl +AC_DEFUN([SUDO_PVS_STUDIO_CFG], [ + if test X"$enable_pvs_studio" = X"yes"; then + # Determine preprocessor type + case "$CC" in + *clang*) preprocessor=clang;; + *gcc*) preprocessor=gcc;; + *) case `$CC --version 2>&1` in + *clang*) preprocessor=clang;; + *gcc*) preprocessor=gcc;; + *) AC_MSG_ERROR([Compiler must be gcc or clang for PVS-Studio.]);; + esac + ;; + esac + + # Determine platform (currently linux or macos) + case "$host" in + x86_64-*-linux*) pvs_platform=linux64;; + *86-*-linux*) pvs_platform=linux32;; + *-*-darwin*) pvs_platform=macos;; + *) AC_MSG_ERROR([PVS-Studio does not support $host.]);; + esac + + # Create a basic PVS-Studio.cfg file + cat > PVS-Studio.cfg <<-EOF + preprocessor = $preprocessor + platform = $pvs_platform + analysis-mode = 4 + language = C + EOF + fi +]) + +AC_DEFUN([SUDO_CPP_VARIADIC_MACROS], +[AC_CACHE_CHECK([for variadic macro support in cpp], +[sudo_cv_cpp_variadic_macros], [ + sudo_cv_cpp_variadic_macros=yes + if test X"$ac_cv_prog_cc_c99" = X"no"; then + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT +#if defined(__GNUC__) && __GNUC__ == 2 +# define sudo_fprintf(fp, fmt...) fprintf((fp), (fmt)) +#else +# define sudo_fprintf(fp, ...) fprintf((fp), __VA_ARGS__) +#endif], [sudo_fprintf(stderr, "a %s", "test"); + ])], [], [sudo_cv_cpp_variadic_macros=no]) + fi + ]) + if test X"$sudo_cv_cpp_variadic_macros" = X"no"; then + AC_DEFINE([NO_VARIADIC_MACROS], [1], [Define if your C preprocessor does not support variadic macros.]) + AC_MSG_WARN([your C preprocessor doesn't support variadic macros, debugging support will be limited]) + SUDO_APPEND_COMPAT_EXP(sudo_debug_printf_nvm_v1) + fi +]) + +dnl +dnl private versions of AC_DEFINE and AC_DEFINE_UNQUOTED that don't support +dnl tracing that we use to define paths for pathnames.h so autoheader doesn't +dnl put them in config.h.in. An awful hack. +dnl +m4_define([SUDO_DEFINE], +[cat >>confdefs.h <<\EOF +[@%:@define] $1 m4_if($#, 2, [$2], $#, 3, [$2], 1) +EOF +]) + +m4_define([SUDO_DEFINE_UNQUOTED], +[cat >>confdefs.h <<EOF +[@%:@define] $1 m4_if($#, 2, [$2], $#, 3, [$2], 1) +EOF +]) |