From 9221dca64f0c8b5de72727491e41cf63e902eaab Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:16:24 +0200 Subject: Adding upstream version 2.8.5. Signed-off-by: Daniel Baumann --- lib/Makefile.am | 74 ++ lib/Makefile.in | 2011 +++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/README | 22 + lib/appendstr.c | 55 ++ lib/cleanup.c | 266 +++++++ lib/cleanup.h | 33 + lib/debug.c | 71 ++ lib/decompress.c | 159 +++++ lib/decompress.h | 40 ++ lib/encodings.c | 915 ++++++++++++++++++++++++ lib/encodings.h | 37 + lib/hashtable.c | 232 ++++++ lib/hashtable.h | 61 ++ lib/linelength.c | 108 +++ lib/linelength.h | 23 + lib/lower.c | 47 ++ lib/lower.h | 24 + lib/orderfiles.c | 164 +++++ lib/orderfiles.h | 23 + lib/pathsearch.c | 130 ++++ lib/pathsearch.h | 34 + lib/sandbox.c | 636 +++++++++++++++++ lib/sandbox.h | 38 + lib/security.c | 177 +++++ lib/security.h | 35 + lib/tempfile.c | 79 +++ lib/util.c | 267 +++++++ lib/wordfnmatch.c | 64 ++ lib/wordfnmatch.h | 23 + lib/xchown.c | 49 ++ lib/xchown.h | 29 + lib/xregcomp.c | 49 ++ lib/xregcomp.h | 25 + 33 files changed, 6000 insertions(+) create mode 100644 lib/Makefile.am create mode 100644 lib/Makefile.in create mode 100644 lib/README create mode 100644 lib/appendstr.c create mode 100644 lib/cleanup.c create mode 100644 lib/cleanup.h create mode 100644 lib/debug.c create mode 100644 lib/decompress.c create mode 100644 lib/decompress.h create mode 100644 lib/encodings.c create mode 100644 lib/encodings.h create mode 100644 lib/hashtable.c create mode 100644 lib/hashtable.h create mode 100644 lib/linelength.c create mode 100644 lib/linelength.h create mode 100644 lib/lower.c create mode 100644 lib/lower.h create mode 100644 lib/orderfiles.c create mode 100644 lib/orderfiles.h create mode 100644 lib/pathsearch.c create mode 100644 lib/pathsearch.h create mode 100644 lib/sandbox.c create mode 100644 lib/sandbox.h create mode 100644 lib/security.c create mode 100644 lib/security.h create mode 100644 lib/tempfile.c create mode 100644 lib/util.c create mode 100644 lib/wordfnmatch.c create mode 100644 lib/wordfnmatch.h create mode 100644 lib/xchown.c create mode 100644 lib/xchown.h create mode 100644 lib/xregcomp.c create mode 100644 lib/xregcomp.h (limited to 'lib') diff --git a/lib/Makefile.am b/lib/Makefile.am new file mode 100644 index 0000000..ba5684f --- /dev/null +++ b/lib/Makefile.am @@ -0,0 +1,74 @@ +## Process this file with automake to produce Makefile.in +## +## Copyright (C) 1994, 1995 Graeme Wilford. +## Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Colin Watson. +## +## This file is part of man-db. +## +## man-db is free software; you can redistribute it and/or modify it +## under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 2 of the License, or +## (at your option) any later version. +## +## man-db is distributed in the hope that it will be useful, but +## WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with man-db; if not, write to the Free Software Foundation, +## Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +pkglib_LTLIBRARIES = libman.la +dist_noinst_DATA = README + +AM_CFLAGS = $(WARN_CFLAGS) + +libman_la_CPPFLAGS = \ + -I$(top_builddir)/include \ + -I$(top_srcdir)/gl/lib \ + -I$(top_builddir)/gl/lib \ + -DLOCALEDIR=\"$(localedir)\" \ + $(libpipeline_CFLAGS) \ + $(libseccomp_CFLAGS) + +libman_la_SOURCES = \ + appendstr.c \ + cleanup.c \ + cleanup.h \ + debug.c \ + decompress.c \ + decompress.h \ + encodings.c \ + encodings.h \ + hashtable.c \ + hashtable.h \ + linelength.c \ + linelength.h \ + lower.c \ + lower.h \ + orderfiles.c \ + orderfiles.h \ + pathsearch.c \ + pathsearch.h \ + sandbox.c \ + sandbox.h \ + security.c \ + security.h \ + tempfile.c \ + util.c \ + wordfnmatch.c \ + wordfnmatch.h \ + xchown.c \ + xchown.h 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@GNULIB_VFPRINTF@ +GNULIB_VFPRINTF_POSIX = @GNULIB_VFPRINTF_POSIX@ +GNULIB_VFSCANF = @GNULIB_VFSCANF@ +GNULIB_VPRINTF = @GNULIB_VPRINTF@ +GNULIB_VPRINTF_POSIX = @GNULIB_VPRINTF_POSIX@ +GNULIB_VSCANF = @GNULIB_VSCANF@ +GNULIB_VSNPRINTF = @GNULIB_VSNPRINTF@ +GNULIB_VSPRINTF_POSIX = @GNULIB_VSPRINTF_POSIX@ +GNULIB_WCPCPY = @GNULIB_WCPCPY@ +GNULIB_WCPNCPY = @GNULIB_WCPNCPY@ +GNULIB_WCRTOMB = @GNULIB_WCRTOMB@ +GNULIB_WCSCASECMP = @GNULIB_WCSCASECMP@ +GNULIB_WCSCAT = @GNULIB_WCSCAT@ +GNULIB_WCSCHR = @GNULIB_WCSCHR@ +GNULIB_WCSCMP = @GNULIB_WCSCMP@ +GNULIB_WCSCOLL = @GNULIB_WCSCOLL@ +GNULIB_WCSCPY = @GNULIB_WCSCPY@ +GNULIB_WCSCSPN = @GNULIB_WCSCSPN@ +GNULIB_WCSDUP = @GNULIB_WCSDUP@ +GNULIB_WCSFTIME = @GNULIB_WCSFTIME@ +GNULIB_WCSLEN = @GNULIB_WCSLEN@ +GNULIB_WCSNCASECMP = @GNULIB_WCSNCASECMP@ +GNULIB_WCSNCAT = @GNULIB_WCSNCAT@ +GNULIB_WCSNCMP = @GNULIB_WCSNCMP@ +GNULIB_WCSNCPY = @GNULIB_WCSNCPY@ +GNULIB_WCSNLEN = @GNULIB_WCSNLEN@ +GNULIB_WCSNRTOMBS = @GNULIB_WCSNRTOMBS@ +GNULIB_WCSPBRK = @GNULIB_WCSPBRK@ +GNULIB_WCSRCHR = @GNULIB_WCSRCHR@ +GNULIB_WCSRTOMBS = @GNULIB_WCSRTOMBS@ +GNULIB_WCSSPN = @GNULIB_WCSSPN@ +GNULIB_WCSSTR = @GNULIB_WCSSTR@ +GNULIB_WCSTOK = @GNULIB_WCSTOK@ +GNULIB_WCSWIDTH = @GNULIB_WCSWIDTH@ +GNULIB_WCSXFRM = @GNULIB_WCSXFRM@ +GNULIB_WCTOB = @GNULIB_WCTOB@ +GNULIB_WCTOMB = @GNULIB_WCTOMB@ +GNULIB_WCTRANS = @GNULIB_WCTRANS@ +GNULIB_WCTYPE = @GNULIB_WCTYPE@ +GNULIB_WCWIDTH = @GNULIB_WCWIDTH@ +GNULIB_WMEMCHR = @GNULIB_WMEMCHR@ +GNULIB_WMEMCMP = @GNULIB_WMEMCMP@ +GNULIB_WMEMCPY = @GNULIB_WMEMCPY@ +GNULIB_WMEMMOVE = @GNULIB_WMEMMOVE@ +GNULIB_WMEMSET = @GNULIB_WMEMSET@ +GNULIB_WRITE = @GNULIB_WRITE@ +GNULIB__EXIT = @GNULIB__EXIT@ +GREP = @GREP@ +HAVE_ACCEPT4 = @HAVE_ACCEPT4@ +HAVE_ALPHASORT = @HAVE_ALPHASORT@ +HAVE_ATOLL = @HAVE_ATOLL@ +HAVE_BTOWC = @HAVE_BTOWC@ +HAVE_C99_STDINT_H = @HAVE_C99_STDINT_H@ +HAVE_CANONICALIZE_FILE_NAME = @HAVE_CANONICALIZE_FILE_NAME@ +HAVE_CHOWN = @HAVE_CHOWN@ +HAVE_CLOSEDIR = @HAVE_CLOSEDIR@ +HAVE_CRTDEFS_H = @HAVE_CRTDEFS_H@ +HAVE_DECL_DIRFD = @HAVE_DECL_DIRFD@ +HAVE_DECL_ENVIRON = @HAVE_DECL_ENVIRON@ +HAVE_DECL_FCHDIR = @HAVE_DECL_FCHDIR@ +HAVE_DECL_FDATASYNC = @HAVE_DECL_FDATASYNC@ +HAVE_DECL_FDOPENDIR = @HAVE_DECL_FDOPENDIR@ +HAVE_DECL_FPURGE = @HAVE_DECL_FPURGE@ +HAVE_DECL_FSEEKO = @HAVE_DECL_FSEEKO@ +HAVE_DECL_FTELLO = @HAVE_DECL_FTELLO@ +HAVE_DECL_GETDELIM = @HAVE_DECL_GETDELIM@ +HAVE_DECL_GETDOMAINNAME = @HAVE_DECL_GETDOMAINNAME@ +HAVE_DECL_GETLINE = @HAVE_DECL_GETLINE@ +HAVE_DECL_GETLOADAVG = @HAVE_DECL_GETLOADAVG@ +HAVE_DECL_GETLOGIN = @HAVE_DECL_GETLOGIN@ +HAVE_DECL_GETLOGIN_R = @HAVE_DECL_GETLOGIN_R@ +HAVE_DECL_GETPAGESIZE = @HAVE_DECL_GETPAGESIZE@ +HAVE_DECL_GETUSERSHELL = @HAVE_DECL_GETUSERSHELL@ +HAVE_DECL_INITSTATE = @HAVE_DECL_INITSTATE@ +HAVE_DECL_LOCALTIME_R = @HAVE_DECL_LOCALTIME_R@ +HAVE_DECL_MEMMEM = @HAVE_DECL_MEMMEM@ +HAVE_DECL_MEMRCHR = @HAVE_DECL_MEMRCHR@ +HAVE_DECL_OBSTACK_PRINTF = @HAVE_DECL_OBSTACK_PRINTF@ +HAVE_DECL_SETENV = @HAVE_DECL_SETENV@ +HAVE_DECL_SETHOSTNAME = @HAVE_DECL_SETHOSTNAME@ +HAVE_DECL_SETSTATE = @HAVE_DECL_SETSTATE@ +HAVE_DECL_SNPRINTF = @HAVE_DECL_SNPRINTF@ +HAVE_DECL_STRDUP = @HAVE_DECL_STRDUP@ +HAVE_DECL_STRERROR_R = @HAVE_DECL_STRERROR_R@ +HAVE_DECL_STRNCASECMP = @HAVE_DECL_STRNCASECMP@ +HAVE_DECL_STRNDUP = @HAVE_DECL_STRNDUP@ +HAVE_DECL_STRNLEN = @HAVE_DECL_STRNLEN@ +HAVE_DECL_STRSIGNAL = @HAVE_DECL_STRSIGNAL@ +HAVE_DECL_STRTOK_R = @HAVE_DECL_STRTOK_R@ +HAVE_DECL_TRUNCATE = @HAVE_DECL_TRUNCATE@ +HAVE_DECL_TTYNAME_R = @HAVE_DECL_TTYNAME_R@ +HAVE_DECL_UNSETENV = @HAVE_DECL_UNSETENV@ +HAVE_DECL_VSNPRINTF = @HAVE_DECL_VSNPRINTF@ +HAVE_DECL_WCTOB = @HAVE_DECL_WCTOB@ +HAVE_DECL_WCWIDTH = @HAVE_DECL_WCWIDTH@ +HAVE_DIRENT_H = @HAVE_DIRENT_H@ +HAVE_DPRINTF = @HAVE_DPRINTF@ +HAVE_DUP2 = @HAVE_DUP2@ +HAVE_DUP3 = @HAVE_DUP3@ +HAVE_DUPLOCALE = @HAVE_DUPLOCALE@ +HAVE_EUIDACCESS = @HAVE_EUIDACCESS@ +HAVE_EXPLICIT_BZERO = @HAVE_EXPLICIT_BZERO@ +HAVE_FACCESSAT = @HAVE_FACCESSAT@ +HAVE_FCHDIR = @HAVE_FCHDIR@ +HAVE_FCHMODAT = @HAVE_FCHMODAT@ +HAVE_FCHOWNAT = @HAVE_FCHOWNAT@ +HAVE_FCNTL = @HAVE_FCNTL@ +HAVE_FDATASYNC = @HAVE_FDATASYNC@ +HAVE_FDOPENDIR = @HAVE_FDOPENDIR@ +HAVE_FEATURES_H = @HAVE_FEATURES_H@ +HAVE_FFS = @HAVE_FFS@ +HAVE_FFSL = @HAVE_FFSL@ +HAVE_FFSLL = @HAVE_FFSLL@ +HAVE_FLOCK = @HAVE_FLOCK@ +HAVE_FNMATCH = @HAVE_FNMATCH@ +HAVE_FNMATCH_H = @HAVE_FNMATCH_H@ +HAVE_FREELOCALE = @HAVE_FREELOCALE@ +HAVE_FSEEKO = @HAVE_FSEEKO@ +HAVE_FSTATAT = @HAVE_FSTATAT@ +HAVE_FSYNC = @HAVE_FSYNC@ +HAVE_FTELLO = @HAVE_FTELLO@ +HAVE_FTRUNCATE = @HAVE_FTRUNCATE@ +HAVE_FUTIMENS = @HAVE_FUTIMENS@ +HAVE_GETDTABLESIZE = @HAVE_GETDTABLESIZE@ +HAVE_GETGROUPS = @HAVE_GETGROUPS@ +HAVE_GETHOSTNAME = @HAVE_GETHOSTNAME@ +HAVE_GETLOGIN = @HAVE_GETLOGIN@ +HAVE_GETOPT_H = @HAVE_GETOPT_H@ +HAVE_GETPAGESIZE = @HAVE_GETPAGESIZE@ +HAVE_GETPASS = @HAVE_GETPASS@ +HAVE_GETSUBOPT = @HAVE_GETSUBOPT@ +HAVE_GETTIMEOFDAY = @HAVE_GETTIMEOFDAY@ +HAVE_GLOB = @HAVE_GLOB@ +HAVE_GLOB_H = @HAVE_GLOB_H@ +HAVE_GLOB_PATTERN_P = @HAVE_GLOB_PATTERN_P@ +HAVE_GRANTPT = @HAVE_GRANTPT@ +HAVE_GROUP_MEMBER = @HAVE_GROUP_MEMBER@ +HAVE_INTTYPES_H = @HAVE_INTTYPES_H@ +HAVE_ISWBLANK = @HAVE_ISWBLANK@ +HAVE_ISWCNTRL = @HAVE_ISWCNTRL@ +HAVE_LANGINFO_ALTMON = @HAVE_LANGINFO_ALTMON@ +HAVE_LANGINFO_CODESET = @HAVE_LANGINFO_CODESET@ +HAVE_LANGINFO_ERA = @HAVE_LANGINFO_ERA@ +HAVE_LANGINFO_H = @HAVE_LANGINFO_H@ +HAVE_LANGINFO_T_FMT_AMPM = @HAVE_LANGINFO_T_FMT_AMPM@ +HAVE_LANGINFO_YESEXPR = @HAVE_LANGINFO_YESEXPR@ +HAVE_LCHMOD = @HAVE_LCHMOD@ +HAVE_LCHOWN = @HAVE_LCHOWN@ +HAVE_LINK = @HAVE_LINK@ +HAVE_LINKAT = @HAVE_LINKAT@ +HAVE_LONG_LONG_INT = @HAVE_LONG_LONG_INT@ +HAVE_LSTAT = @HAVE_LSTAT@ +HAVE_MAX_ALIGN_T = @HAVE_MAX_ALIGN_T@ +HAVE_MBRLEN = @HAVE_MBRLEN@ +HAVE_MBRTOWC = @HAVE_MBRTOWC@ +HAVE_MBSINIT = @HAVE_MBSINIT@ +HAVE_MBSLEN = @HAVE_MBSLEN@ +HAVE_MBSNRTOWCS = @HAVE_MBSNRTOWCS@ +HAVE_MBSRTOWCS = @HAVE_MBSRTOWCS@ +HAVE_MEMCHR = @HAVE_MEMCHR@ +HAVE_MEMPCPY = @HAVE_MEMPCPY@ +HAVE_MKDIRAT = @HAVE_MKDIRAT@ +HAVE_MKDTEMP = @HAVE_MKDTEMP@ +HAVE_MKFIFO = @HAVE_MKFIFO@ +HAVE_MKFIFOAT = @HAVE_MKFIFOAT@ +HAVE_MKNOD = @HAVE_MKNOD@ +HAVE_MKNODAT = @HAVE_MKNODAT@ +HAVE_MKOSTEMP = @HAVE_MKOSTEMP@ +HAVE_MKOSTEMPS = @HAVE_MKOSTEMPS@ +HAVE_MKSTEMP = @HAVE_MKSTEMP@ +HAVE_MKSTEMPS = @HAVE_MKSTEMPS@ +HAVE_MSVC_INVALID_PARAMETER_HANDLER = @HAVE_MSVC_INVALID_PARAMETER_HANDLER@ +HAVE_NANOSLEEP = @HAVE_NANOSLEEP@ +HAVE_NEWLOCALE = @HAVE_NEWLOCALE@ +HAVE_NL_LANGINFO = @HAVE_NL_LANGINFO@ +HAVE_OPENAT = @HAVE_OPENAT@ +HAVE_OPENDIR = @HAVE_OPENDIR@ +HAVE_OS_H = @HAVE_OS_H@ +HAVE_PCLOSE = @HAVE_PCLOSE@ +HAVE_PIPE = @HAVE_PIPE@ +HAVE_PIPE2 = @HAVE_PIPE2@ +HAVE_POPEN = @HAVE_POPEN@ +HAVE_POSIX_OPENPT = @HAVE_POSIX_OPENPT@ +HAVE_POSIX_SIGNALBLOCKING = @HAVE_POSIX_SIGNALBLOCKING@ +HAVE_PREAD = @HAVE_PREAD@ +HAVE_PSELECT = @HAVE_PSELECT@ +HAVE_PTHREAD_SIGMASK = @HAVE_PTHREAD_SIGMASK@ +HAVE_PTSNAME = @HAVE_PTSNAME@ +HAVE_PTSNAME_R = @HAVE_PTSNAME_R@ +HAVE_PWRITE = @HAVE_PWRITE@ +HAVE_QSORT_R = @HAVE_QSORT_R@ +HAVE_RAISE = @HAVE_RAISE@ +HAVE_RANDOM = @HAVE_RANDOM@ +HAVE_RANDOM_H = @HAVE_RANDOM_H@ +HAVE_RANDOM_R = @HAVE_RANDOM_R@ +HAVE_RAWMEMCHR = @HAVE_RAWMEMCHR@ +HAVE_READDIR = @HAVE_READDIR@ +HAVE_READLINK = @HAVE_READLINK@ +HAVE_READLINKAT = @HAVE_READLINKAT@ +HAVE_REALLOCARRAY = @HAVE_REALLOCARRAY@ +HAVE_REALPATH = @HAVE_REALPATH@ +HAVE_RENAMEAT = @HAVE_RENAMEAT@ +HAVE_REWINDDIR = @HAVE_REWINDDIR@ +HAVE_RPMATCH = @HAVE_RPMATCH@ +HAVE_SA_FAMILY_T = @HAVE_SA_FAMILY_T@ +HAVE_SCANDIR = @HAVE_SCANDIR@ +HAVE_SECURE_GETENV = @HAVE_SECURE_GETENV@ +HAVE_SETENV = @HAVE_SETENV@ +HAVE_SETHOSTNAME = @HAVE_SETHOSTNAME@ +HAVE_SIGACTION = @HAVE_SIGACTION@ +HAVE_SIGHANDLER_T = @HAVE_SIGHANDLER_T@ +HAVE_SIGINFO_T = @HAVE_SIGINFO_T@ +HAVE_SIGNED_SIG_ATOMIC_T = @HAVE_SIGNED_SIG_ATOMIC_T@ +HAVE_SIGNED_WCHAR_T = @HAVE_SIGNED_WCHAR_T@ +HAVE_SIGNED_WINT_T = @HAVE_SIGNED_WINT_T@ +HAVE_SIGSET_T = @HAVE_SIGSET_T@ +HAVE_SLEEP = @HAVE_SLEEP@ +HAVE_STDINT_H = @HAVE_STDINT_H@ +HAVE_STPCPY = @HAVE_STPCPY@ +HAVE_STPNCPY = @HAVE_STPNCPY@ +HAVE_STRCASECMP = @HAVE_STRCASECMP@ +HAVE_STRCASESTR = @HAVE_STRCASESTR@ +HAVE_STRCHRNUL = @HAVE_STRCHRNUL@ +HAVE_STRINGS_H = @HAVE_STRINGS_H@ +HAVE_STRPBRK = @HAVE_STRPBRK@ +HAVE_STRPTIME = @HAVE_STRPTIME@ +HAVE_STRSEP = @HAVE_STRSEP@ +HAVE_STRTOD = @HAVE_STRTOD@ +HAVE_STRTOLL = @HAVE_STRTOLL@ +HAVE_STRTOULL = @HAVE_STRTOULL@ +HAVE_STRUCT_RANDOM_DATA = @HAVE_STRUCT_RANDOM_DATA@ +HAVE_STRUCT_SIGACTION_SA_SIGACTION = @HAVE_STRUCT_SIGACTION_SA_SIGACTION@ +HAVE_STRUCT_SOCKADDR_STORAGE = @HAVE_STRUCT_SOCKADDR_STORAGE@ +HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = @HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY@ +HAVE_STRUCT_TIMEVAL = @HAVE_STRUCT_TIMEVAL@ +HAVE_STRVERSCMP = @HAVE_STRVERSCMP@ +HAVE_SYMLINK = @HAVE_SYMLINK@ +HAVE_SYMLINKAT = @HAVE_SYMLINKAT@ +HAVE_SYSEXITS_H = @HAVE_SYSEXITS_H@ +HAVE_SYS_BITYPES_H = @HAVE_SYS_BITYPES_H@ +HAVE_SYS_CDEFS_H = @HAVE_SYS_CDEFS_H@ +HAVE_SYS_FILE_H = @HAVE_SYS_FILE_H@ +HAVE_SYS_INTTYPES_H = @HAVE_SYS_INTTYPES_H@ +HAVE_SYS_IOCTL_H = @HAVE_SYS_IOCTL_H@ +HAVE_SYS_LOADAVG_H = @HAVE_SYS_LOADAVG_H@ +HAVE_SYS_PARAM_H = @HAVE_SYS_PARAM_H@ +HAVE_SYS_SELECT_H = @HAVE_SYS_SELECT_H@ +HAVE_SYS_SOCKET_H = @HAVE_SYS_SOCKET_H@ +HAVE_SYS_TIME_H = @HAVE_SYS_TIME_H@ +HAVE_SYS_TYPES_H = @HAVE_SYS_TYPES_H@ +HAVE_SYS_UIO_H = @HAVE_SYS_UIO_H@ +HAVE_TIMEGM = @HAVE_TIMEGM@ +HAVE_TIMEZONE_T = @HAVE_TIMEZONE_T@ +HAVE_TYPE_VOLATILE_SIG_ATOMIC_T = @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@ +HAVE_TZSET = @HAVE_TZSET@ +HAVE_UNISTD_H = @HAVE_UNISTD_H@ +HAVE_UNLINKAT = @HAVE_UNLINKAT@ +HAVE_UNLOCKPT = @HAVE_UNLOCKPT@ +HAVE_UNSIGNED_LONG_LONG_INT = @HAVE_UNSIGNED_LONG_LONG_INT@ +HAVE_USLEEP = @HAVE_USLEEP@ +HAVE_UTIME = @HAVE_UTIME@ +HAVE_UTIMENSAT = @HAVE_UTIMENSAT@ +HAVE_UTIME_H = @HAVE_UTIME_H@ +HAVE_VASPRINTF = @HAVE_VASPRINTF@ +HAVE_VDPRINTF = @HAVE_VDPRINTF@ +HAVE_WCHAR_H = @HAVE_WCHAR_H@ +HAVE_WCHAR_T = @HAVE_WCHAR_T@ +HAVE_WCPCPY = @HAVE_WCPCPY@ +HAVE_WCPNCPY = @HAVE_WCPNCPY@ +HAVE_WCRTOMB = @HAVE_WCRTOMB@ +HAVE_WCSCASECMP = @HAVE_WCSCASECMP@ +HAVE_WCSCAT = @HAVE_WCSCAT@ +HAVE_WCSCHR = @HAVE_WCSCHR@ +HAVE_WCSCMP = @HAVE_WCSCMP@ +HAVE_WCSCOLL = @HAVE_WCSCOLL@ +HAVE_WCSCPY = @HAVE_WCSCPY@ +HAVE_WCSCSPN = @HAVE_WCSCSPN@ +HAVE_WCSDUP = @HAVE_WCSDUP@ +HAVE_WCSFTIME = @HAVE_WCSFTIME@ +HAVE_WCSLEN = @HAVE_WCSLEN@ +HAVE_WCSNCASECMP = @HAVE_WCSNCASECMP@ +HAVE_WCSNCAT = @HAVE_WCSNCAT@ +HAVE_WCSNCMP = @HAVE_WCSNCMP@ +HAVE_WCSNCPY = @HAVE_WCSNCPY@ +HAVE_WCSNLEN = @HAVE_WCSNLEN@ +HAVE_WCSNRTOMBS = @HAVE_WCSNRTOMBS@ +HAVE_WCSPBRK = @HAVE_WCSPBRK@ +HAVE_WCSRCHR = @HAVE_WCSRCHR@ +HAVE_WCSRTOMBS = @HAVE_WCSRTOMBS@ +HAVE_WCSSPN = @HAVE_WCSSPN@ +HAVE_WCSSTR = @HAVE_WCSSTR@ +HAVE_WCSTOK = @HAVE_WCSTOK@ +HAVE_WCSWIDTH = @HAVE_WCSWIDTH@ +HAVE_WCSXFRM = @HAVE_WCSXFRM@ +HAVE_WCTRANS_T = @HAVE_WCTRANS_T@ +HAVE_WCTYPE_H = @HAVE_WCTYPE_H@ +HAVE_WCTYPE_T = @HAVE_WCTYPE_T@ +HAVE_WINSOCK2_H = @HAVE_WINSOCK2_H@ +HAVE_WINT_T = @HAVE_WINT_T@ +HAVE_WMEMCHR = @HAVE_WMEMCHR@ +HAVE_WMEMCMP = @HAVE_WMEMCMP@ +HAVE_WMEMCPY = @HAVE_WMEMCPY@ +HAVE_WMEMMOVE = @HAVE_WMEMMOVE@ +HAVE_WMEMSET = @HAVE_WMEMSET@ +HAVE_WS2TCPIP_H = @HAVE_WS2TCPIP_H@ +HAVE_XLOCALE_H = @HAVE_XLOCALE_H@ +HAVE__BOOL = @HAVE__BOOL@ +HAVE__EXIT = @HAVE__EXIT@ +IGNORE_UNUSED_LIBRARIES_CFLAGS = @IGNORE_UNUSED_LIBRARIES_CFLAGS@ +INCLUDE_NEXT = @INCLUDE_NEXT@ +INCLUDE_NEXT_AS_FIRST_DIRECTIVE = @INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ +INSTALL = @INSTALL@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +INTLLIBS = @INTLLIBS@ +INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@ +LD = @LD@ +LDFLAGS = @LDFLAGS@ +LEX = @LEX@ +LEXLIB = @LEXLIB@ +LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@ +LIBCOMPRESS = @LIBCOMPRESS@ +LIBICONV = @LIBICONV@ +LIBINTL = @LIBINTL@ +LIBMULTITHREAD = @LIBMULTITHREAD@ +LIBOBJS = @LIBOBJS@ +LIBPTH = @LIBPTH@ +LIBPTH_PREFIX = @LIBPTH_PREFIX@ +LIBS = @LIBS@ +LIBSOCKET = @LIBSOCKET@ +LIBTHREAD = @LIBTHREAD@ +LIBTOOL = @LIBTOOL@ +LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@ +LIB_GETLOGIN = @LIB_GETLOGIN@ +LIB_NANOSLEEP = @LIB_NANOSLEEP@ +LIB_SELECT = @LIB_SELECT@ +LIMITS_H = @LIMITS_H@ +LINGUAS = @LINGUAS@ +LIPO = @LIPO@ +LN_S = @LN_S@ +LOCALCHARSET_TESTS_ENVIRONMENT = @LOCALCHARSET_TESTS_ENVIRONMENT@ +LOCALE_FR = @LOCALE_FR@ +LOCALE_FR_UTF8 = @LOCALE_FR_UTF8@ +LOCALE_JA = @LOCALE_JA@ +LOCALE_ZH_CN = @LOCALE_ZH_CN@ +LTALLOCA = @LTALLOCA@ +LTLIBICONV = @LTLIBICONV@ +LTLIBINTL = @LTLIBINTL@ +LTLIBMULTITHREAD = @LTLIBMULTITHREAD@ +LTLIBOBJS = @LTLIBOBJS@ +LTLIBPTH = @LTLIBPTH@ +LTLIBTHREAD = @LTLIBTHREAD@ +LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@ +MAINT = @MAINT@ +MAKEINFO = @MAKEINFO@ +MANDIR_LAYOUT = @MANDIR_LAYOUT@ +MANIFEST_TOOL = @MANIFEST_TOOL@ +MAN_SUBDIRS = @MAN_SUBDIRS@ +MKDIR_P = @MKDIR_P@ +MSGFMT = @MSGFMT@ +MSGFMT_015 = @MSGFMT_015@ +MSGMERGE = @MSGMERGE@ +NEXT_AS_FIRST_DIRECTIVE_DIRENT_H = @NEXT_AS_FIRST_DIRECTIVE_DIRENT_H@ +NEXT_AS_FIRST_DIRECTIVE_ERRNO_H = @NEXT_AS_FIRST_DIRECTIVE_ERRNO_H@ +NEXT_AS_FIRST_DIRECTIVE_FCNTL_H = @NEXT_AS_FIRST_DIRECTIVE_FCNTL_H@ +NEXT_AS_FIRST_DIRECTIVE_FLOAT_H = @NEXT_AS_FIRST_DIRECTIVE_FLOAT_H@ +NEXT_AS_FIRST_DIRECTIVE_FNMATCH_H = @NEXT_AS_FIRST_DIRECTIVE_FNMATCH_H@ +NEXT_AS_FIRST_DIRECTIVE_GETOPT_H = @NEXT_AS_FIRST_DIRECTIVE_GETOPT_H@ +NEXT_AS_FIRST_DIRECTIVE_GLOB_H = @NEXT_AS_FIRST_DIRECTIVE_GLOB_H@ +NEXT_AS_FIRST_DIRECTIVE_LANGINFO_H = @NEXT_AS_FIRST_DIRECTIVE_LANGINFO_H@ +NEXT_AS_FIRST_DIRECTIVE_LIMITS_H = @NEXT_AS_FIRST_DIRECTIVE_LIMITS_H@ +NEXT_AS_FIRST_DIRECTIVE_LOCALE_H = @NEXT_AS_FIRST_DIRECTIVE_LOCALE_H@ +NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H = @NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H@ +NEXT_AS_FIRST_DIRECTIVE_STDARG_H = @NEXT_AS_FIRST_DIRECTIVE_STDARG_H@ +NEXT_AS_FIRST_DIRECTIVE_STDDEF_H = @NEXT_AS_FIRST_DIRECTIVE_STDDEF_H@ +NEXT_AS_FIRST_DIRECTIVE_STDINT_H = @NEXT_AS_FIRST_DIRECTIVE_STDINT_H@ +NEXT_AS_FIRST_DIRECTIVE_STDIO_H = @NEXT_AS_FIRST_DIRECTIVE_STDIO_H@ +NEXT_AS_FIRST_DIRECTIVE_STDLIB_H = @NEXT_AS_FIRST_DIRECTIVE_STDLIB_H@ +NEXT_AS_FIRST_DIRECTIVE_STRINGS_H = @NEXT_AS_FIRST_DIRECTIVE_STRINGS_H@ +NEXT_AS_FIRST_DIRECTIVE_STRING_H = @NEXT_AS_FIRST_DIRECTIVE_STRING_H@ +NEXT_AS_FIRST_DIRECTIVE_SYSEXITS_H = @NEXT_AS_FIRST_DIRECTIVE_SYSEXITS_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_FILE_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_FILE_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_IOCTL_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_IOCTL_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_SELECT_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_SELECT_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_SOCKET_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_SOCKET_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_TIME_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_TIME_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H@ +NEXT_AS_FIRST_DIRECTIVE_SYS_UIO_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_UIO_H@ +NEXT_AS_FIRST_DIRECTIVE_TIME_H = @NEXT_AS_FIRST_DIRECTIVE_TIME_H@ +NEXT_AS_FIRST_DIRECTIVE_UNISTD_H = @NEXT_AS_FIRST_DIRECTIVE_UNISTD_H@ +NEXT_AS_FIRST_DIRECTIVE_UTIME_H = @NEXT_AS_FIRST_DIRECTIVE_UTIME_H@ +NEXT_AS_FIRST_DIRECTIVE_WCHAR_H = @NEXT_AS_FIRST_DIRECTIVE_WCHAR_H@ +NEXT_AS_FIRST_DIRECTIVE_WCTYPE_H = @NEXT_AS_FIRST_DIRECTIVE_WCTYPE_H@ +NEXT_DIRENT_H = @NEXT_DIRENT_H@ +NEXT_ERRNO_H = @NEXT_ERRNO_H@ +NEXT_FCNTL_H = @NEXT_FCNTL_H@ +NEXT_FLOAT_H = @NEXT_FLOAT_H@ +NEXT_FNMATCH_H = @NEXT_FNMATCH_H@ +NEXT_GETOPT_H = @NEXT_GETOPT_H@ +NEXT_GLOB_H = @NEXT_GLOB_H@ +NEXT_LANGINFO_H = @NEXT_LANGINFO_H@ +NEXT_LIMITS_H = @NEXT_LIMITS_H@ +NEXT_LOCALE_H = @NEXT_LOCALE_H@ +NEXT_SIGNAL_H = @NEXT_SIGNAL_H@ +NEXT_STDARG_H = @NEXT_STDARG_H@ +NEXT_STDDEF_H = @NEXT_STDDEF_H@ +NEXT_STDINT_H = @NEXT_STDINT_H@ +NEXT_STDIO_H = @NEXT_STDIO_H@ +NEXT_STDLIB_H = @NEXT_STDLIB_H@ +NEXT_STRINGS_H = @NEXT_STRINGS_H@ +NEXT_STRING_H = @NEXT_STRING_H@ +NEXT_SYSEXITS_H = @NEXT_SYSEXITS_H@ +NEXT_SYS_FILE_H = @NEXT_SYS_FILE_H@ +NEXT_SYS_IOCTL_H = @NEXT_SYS_IOCTL_H@ +NEXT_SYS_SELECT_H = @NEXT_SYS_SELECT_H@ +NEXT_SYS_SOCKET_H = @NEXT_SYS_SOCKET_H@ +NEXT_SYS_STAT_H = @NEXT_SYS_STAT_H@ +NEXT_SYS_TIME_H = @NEXT_SYS_TIME_H@ +NEXT_SYS_TYPES_H = @NEXT_SYS_TYPES_H@ +NEXT_SYS_UIO_H = @NEXT_SYS_UIO_H@ +NEXT_TIME_H = @NEXT_TIME_H@ +NEXT_UNISTD_H = @NEXT_UNISTD_H@ +NEXT_UTIME_H = @NEXT_UTIME_H@ +NEXT_WCHAR_H = @NEXT_WCHAR_H@ +NEXT_WCTYPE_H = @NEXT_WCTYPE_H@ +NM = @NM@ +NMEDIT = @NMEDIT@ +OBJDUMP = @OBJDUMP@ +OBJEXT = @OBJEXT@ +OTOOL = @OTOOL@ +OTOOL64 = @OTOOL64@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +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@ +PO4A = @PO4A@ +POSUB = @POSUB@ +PRAGMA_COLUMNS = @PRAGMA_COLUMNS@ +PRAGMA_SYSTEM_HEADER = @PRAGMA_SYSTEM_HEADER@ +PTHREAD_H_DEFINES_STRUCT_TIMESPEC = @PTHREAD_H_DEFINES_STRUCT_TIMESPEC@ +PTRDIFF_T_SUFFIX = @PTRDIFF_T_SUFFIX@ +RANLIB = @RANLIB@ +REPLACE_BTOWC = @REPLACE_BTOWC@ +REPLACE_CALLOC = @REPLACE_CALLOC@ +REPLACE_CANONICALIZE_FILE_NAME = @REPLACE_CANONICALIZE_FILE_NAME@ +REPLACE_CHOWN = @REPLACE_CHOWN@ +REPLACE_CLOSE = @REPLACE_CLOSE@ +REPLACE_CLOSEDIR = @REPLACE_CLOSEDIR@ +REPLACE_CTIME = @REPLACE_CTIME@ +REPLACE_DIRFD = @REPLACE_DIRFD@ +REPLACE_DPRINTF = @REPLACE_DPRINTF@ +REPLACE_DUP = @REPLACE_DUP@ +REPLACE_DUP2 = @REPLACE_DUP2@ +REPLACE_DUPLOCALE = @REPLACE_DUPLOCALE@ +REPLACE_FACCESSAT = @REPLACE_FACCESSAT@ +REPLACE_FCHOWNAT = @REPLACE_FCHOWNAT@ +REPLACE_FCLOSE = @REPLACE_FCLOSE@ +REPLACE_FCNTL = @REPLACE_FCNTL@ +REPLACE_FDOPEN = @REPLACE_FDOPEN@ +REPLACE_FDOPENDIR = @REPLACE_FDOPENDIR@ +REPLACE_FFLUSH = @REPLACE_FFLUSH@ +REPLACE_FNMATCH = @REPLACE_FNMATCH@ +REPLACE_FOPEN = @REPLACE_FOPEN@ +REPLACE_FPRINTF = @REPLACE_FPRINTF@ +REPLACE_FPURGE = @REPLACE_FPURGE@ +REPLACE_FREELOCALE = @REPLACE_FREELOCALE@ +REPLACE_FREOPEN = @REPLACE_FREOPEN@ +REPLACE_FSEEK = @REPLACE_FSEEK@ +REPLACE_FSEEKO = @REPLACE_FSEEKO@ +REPLACE_FSTAT = @REPLACE_FSTAT@ +REPLACE_FSTATAT = @REPLACE_FSTATAT@ +REPLACE_FTELL = @REPLACE_FTELL@ +REPLACE_FTELLO = @REPLACE_FTELLO@ +REPLACE_FTRUNCATE = @REPLACE_FTRUNCATE@ +REPLACE_FUTIMENS = @REPLACE_FUTIMENS@ +REPLACE_GETCWD = @REPLACE_GETCWD@ +REPLACE_GETDELIM = @REPLACE_GETDELIM@ +REPLACE_GETDOMAINNAME = @REPLACE_GETDOMAINNAME@ +REPLACE_GETDTABLESIZE = @REPLACE_GETDTABLESIZE@ +REPLACE_GETGROUPS = @REPLACE_GETGROUPS@ +REPLACE_GETLINE = @REPLACE_GETLINE@ +REPLACE_GETLOGIN_R = @REPLACE_GETLOGIN_R@ +REPLACE_GETPAGESIZE = @REPLACE_GETPAGESIZE@ +REPLACE_GETPASS = @REPLACE_GETPASS@ +REPLACE_GETTIMEOFDAY = @REPLACE_GETTIMEOFDAY@ +REPLACE_GLOB = @REPLACE_GLOB@ +REPLACE_GLOB_PATTERN_P = @REPLACE_GLOB_PATTERN_P@ +REPLACE_GMTIME = @REPLACE_GMTIME@ +REPLACE_IOCTL = @REPLACE_IOCTL@ +REPLACE_ISATTY = @REPLACE_ISATTY@ +REPLACE_ISWBLANK = @REPLACE_ISWBLANK@ +REPLACE_ISWCNTRL = @REPLACE_ISWCNTRL@ +REPLACE_ITOLD = @REPLACE_ITOLD@ +REPLACE_LCHOWN = @REPLACE_LCHOWN@ +REPLACE_LINK = @REPLACE_LINK@ +REPLACE_LINKAT = @REPLACE_LINKAT@ +REPLACE_LOCALECONV = @REPLACE_LOCALECONV@ +REPLACE_LOCALTIME = @REPLACE_LOCALTIME@ +REPLACE_LOCALTIME_R = @REPLACE_LOCALTIME_R@ +REPLACE_LSEEK = @REPLACE_LSEEK@ +REPLACE_LSTAT = @REPLACE_LSTAT@ +REPLACE_MALLOC = @REPLACE_MALLOC@ +REPLACE_MBRLEN = @REPLACE_MBRLEN@ +REPLACE_MBRTOWC = @REPLACE_MBRTOWC@ +REPLACE_MBSINIT = @REPLACE_MBSINIT@ +REPLACE_MBSNRTOWCS = @REPLACE_MBSNRTOWCS@ +REPLACE_MBSRTOWCS = @REPLACE_MBSRTOWCS@ +REPLACE_MBSTATE_T = @REPLACE_MBSTATE_T@ +REPLACE_MBTOWC = @REPLACE_MBTOWC@ +REPLACE_MEMCHR = @REPLACE_MEMCHR@ +REPLACE_MEMMEM = @REPLACE_MEMMEM@ +REPLACE_MKDIR = @REPLACE_MKDIR@ +REPLACE_MKFIFO = @REPLACE_MKFIFO@ +REPLACE_MKNOD = @REPLACE_MKNOD@ +REPLACE_MKSTEMP = @REPLACE_MKSTEMP@ +REPLACE_MKTIME = @REPLACE_MKTIME@ +REPLACE_NANOSLEEP = @REPLACE_NANOSLEEP@ +REPLACE_NEWLOCALE = @REPLACE_NEWLOCALE@ +REPLACE_NL_LANGINFO = @REPLACE_NL_LANGINFO@ +REPLACE_NULL = @REPLACE_NULL@ +REPLACE_OBSTACK_PRINTF = @REPLACE_OBSTACK_PRINTF@ +REPLACE_OPEN = @REPLACE_OPEN@ +REPLACE_OPENAT = @REPLACE_OPENAT@ +REPLACE_OPENDIR = @REPLACE_OPENDIR@ +REPLACE_PERROR = @REPLACE_PERROR@ +REPLACE_POPEN = @REPLACE_POPEN@ +REPLACE_PREAD = @REPLACE_PREAD@ +REPLACE_PRINTF = @REPLACE_PRINTF@ +REPLACE_PSELECT = @REPLACE_PSELECT@ +REPLACE_PTHREAD_SIGMASK = @REPLACE_PTHREAD_SIGMASK@ +REPLACE_PTSNAME = @REPLACE_PTSNAME@ +REPLACE_PTSNAME_R = @REPLACE_PTSNAME_R@ +REPLACE_PUTENV = @REPLACE_PUTENV@ +REPLACE_PWRITE = @REPLACE_PWRITE@ +REPLACE_QSORT_R = @REPLACE_QSORT_R@ +REPLACE_RAISE = @REPLACE_RAISE@ +REPLACE_RANDOM_R = @REPLACE_RANDOM_R@ +REPLACE_READ = @REPLACE_READ@ +REPLACE_READLINK = @REPLACE_READLINK@ +REPLACE_READLINKAT = @REPLACE_READLINKAT@ +REPLACE_REALLOC = @REPLACE_REALLOC@ +REPLACE_REALPATH = @REPLACE_REALPATH@ +REPLACE_REMOVE = @REPLACE_REMOVE@ +REPLACE_RENAME = @REPLACE_RENAME@ +REPLACE_RENAMEAT = @REPLACE_RENAMEAT@ +REPLACE_RMDIR = @REPLACE_RMDIR@ +REPLACE_SELECT = @REPLACE_SELECT@ +REPLACE_SETENV = @REPLACE_SETENV@ +REPLACE_SETLOCALE = @REPLACE_SETLOCALE@ +REPLACE_SLEEP = @REPLACE_SLEEP@ +REPLACE_SNPRINTF = @REPLACE_SNPRINTF@ +REPLACE_SPRINTF = @REPLACE_SPRINTF@ +REPLACE_STAT = @REPLACE_STAT@ +REPLACE_STDIO_READ_FUNCS = @REPLACE_STDIO_READ_FUNCS@ +REPLACE_STDIO_WRITE_FUNCS = @REPLACE_STDIO_WRITE_FUNCS@ +REPLACE_STPNCPY = @REPLACE_STPNCPY@ +REPLACE_STRCASESTR = @REPLACE_STRCASESTR@ +REPLACE_STRCHRNUL = @REPLACE_STRCHRNUL@ +REPLACE_STRDUP = @REPLACE_STRDUP@ +REPLACE_STRERROR = @REPLACE_STRERROR@ +REPLACE_STRERROR_R = @REPLACE_STRERROR_R@ +REPLACE_STRFTIME = @REPLACE_STRFTIME@ +REPLACE_STRNCAT = @REPLACE_STRNCAT@ +REPLACE_STRNDUP = @REPLACE_STRNDUP@ +REPLACE_STRNLEN = @REPLACE_STRNLEN@ +REPLACE_STRSIGNAL = @REPLACE_STRSIGNAL@ +REPLACE_STRSTR = @REPLACE_STRSTR@ +REPLACE_STRTOD = @REPLACE_STRTOD@ +REPLACE_STRTOK_R = @REPLACE_STRTOK_R@ +REPLACE_STRUCT_LCONV = @REPLACE_STRUCT_LCONV@ +REPLACE_STRUCT_TIMEVAL = @REPLACE_STRUCT_TIMEVAL@ +REPLACE_SYMLINK = @REPLACE_SYMLINK@ +REPLACE_SYMLINKAT = @REPLACE_SYMLINKAT@ +REPLACE_TIMEGM = @REPLACE_TIMEGM@ +REPLACE_TMPFILE = @REPLACE_TMPFILE@ +REPLACE_TOWLOWER = @REPLACE_TOWLOWER@ +REPLACE_TRUNCATE = @REPLACE_TRUNCATE@ +REPLACE_TTYNAME_R = @REPLACE_TTYNAME_R@ +REPLACE_TZSET = @REPLACE_TZSET@ +REPLACE_UNLINK = @REPLACE_UNLINK@ +REPLACE_UNLINKAT = @REPLACE_UNLINKAT@ +REPLACE_UNSETENV = @REPLACE_UNSETENV@ +REPLACE_USLEEP = @REPLACE_USLEEP@ +REPLACE_UTIME = @REPLACE_UTIME@ +REPLACE_UTIMENSAT = @REPLACE_UTIMENSAT@ +REPLACE_VASPRINTF = @REPLACE_VASPRINTF@ +REPLACE_VDPRINTF = @REPLACE_VDPRINTF@ +REPLACE_VFPRINTF = @REPLACE_VFPRINTF@ +REPLACE_VPRINTF = @REPLACE_VPRINTF@ +REPLACE_VSNPRINTF = @REPLACE_VSNPRINTF@ +REPLACE_VSPRINTF = @REPLACE_VSPRINTF@ +REPLACE_WCRTOMB = @REPLACE_WCRTOMB@ +REPLACE_WCSFTIME = @REPLACE_WCSFTIME@ +REPLACE_WCSNRTOMBS = @REPLACE_WCSNRTOMBS@ +REPLACE_WCSRTOMBS = @REPLACE_WCSRTOMBS@ +REPLACE_WCSWIDTH = @REPLACE_WCSWIDTH@ +REPLACE_WCTOB = @REPLACE_WCTOB@ +REPLACE_WCTOMB = @REPLACE_WCTOMB@ +REPLACE_WCWIDTH = @REPLACE_WCWIDTH@ +REPLACE_WRITE = @REPLACE_WRITE@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +SIG_ATOMIC_T_SUFFIX = @SIG_ATOMIC_T_SUFFIX@ +SIZE_T_SUFFIX = @SIZE_T_SUFFIX@ +STDALIGN_H = @STDALIGN_H@ +STDARG_H = @STDARG_H@ +STDBOOL_H = @STDBOOL_H@ +STDDEF_H = @STDDEF_H@ +STDINT_H = @STDINT_H@ +STRIP = @STRIP@ +SYSEXITS_H = @SYSEXITS_H@ +SYS_IOCTL_H_HAVE_WINSOCK2_H = @SYS_IOCTL_H_HAVE_WINSOCK2_H@ +SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS = @SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@ +SYS_TIME_H_DEFINES_STRUCT_TIMESPEC = @SYS_TIME_H_DEFINES_STRUCT_TIMESPEC@ +TBL_X_FORMAT = @TBL_X_FORMAT@ +TIME_H_DEFINES_STRUCT_TIMESPEC = @TIME_H_DEFINES_STRUCT_TIMESPEC@ +TRANS_APROPOS = @TRANS_APROPOS@ +TRANS_APROPOS_UPPER = @TRANS_APROPOS_UPPER@ +TRANS_CATMAN = @TRANS_CATMAN@ +TRANS_CATMAN_UPPER = @TRANS_CATMAN_UPPER@ +TRANS_LEXGROG = @TRANS_LEXGROG@ +TRANS_LEXGROG_UPPER = @TRANS_LEXGROG_UPPER@ +TRANS_MAN = @TRANS_MAN@ +TRANS_MANCONV = @TRANS_MANCONV@ +TRANS_MANCONV_UPPER = @TRANS_MANCONV_UPPER@ +TRANS_MANDB = @TRANS_MANDB@ +TRANS_MANDB_UPPER = @TRANS_MANDB_UPPER@ +TRANS_MANPATH = @TRANS_MANPATH@ +TRANS_MANPATH_UPPER = @TRANS_MANPATH_UPPER@ +TRANS_MAN_UPPER = @TRANS_MAN_UPPER@ +TRANS_WHATIS = @TRANS_WHATIS@ +TRANS_WHATIS_UPPER = @TRANS_WHATIS_UPPER@ +TRANS_ZSOELIM = @TRANS_ZSOELIM@ +TRANS_ZSOELIM_UPPER = @TRANS_ZSOELIM_UPPER@ +TROFF = @TROFF@ +UNDEFINE_STRTOK_R = @UNDEFINE_STRTOK_R@ +UNISTD_H_DEFINES_STRUCT_TIMESPEC = @UNISTD_H_DEFINES_STRUCT_TIMESPEC@ +UNISTD_H_HAVE_WINSOCK2_H = @UNISTD_H_HAVE_WINSOCK2_H@ +UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS = @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@ +USE_NLS = @USE_NLS@ +UTIME_H = @UTIME_H@ +VERSION = @VERSION@ +WARN_CFLAGS = @WARN_CFLAGS@ +WCHAR_T_SUFFIX = @WCHAR_T_SUFFIX@ +WINDOWS_64_BIT_OFF_T = @WINDOWS_64_BIT_OFF_T@ +WINDOWS_64_BIT_ST_SIZE = @WINDOWS_64_BIT_ST_SIZE@ +WINDOWS_STAT_INODES = @WINDOWS_STAT_INODES@ +WINDOWS_STAT_TIMESPEC = @WINDOWS_STAT_TIMESPEC@ +WINT_T_SUFFIX = @WINT_T_SUFFIX@ +XGETTEXT = @XGETTEXT@ +XGETTEXT_015 = @XGETTEXT_015@ +XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@ +abs_builddir = @abs_builddir@ 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@gl_LTLIBOBJS@ +gltests_LIBOBJS = @gltests_LIBOBJS@ +gltests_LTLIBOBJS = @gltests_LTLIBOBJS@ +gltests_WITNESS = @gltests_WITNESS@ +grap = @grap@ +grep = @grep@ +gunzip = @gunzip@ +gzip = @gzip@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +libpipeline_CFLAGS = @libpipeline_CFLAGS@ +libpipeline_LIBS = @libpipeline_LIBS@ +libseccomp_CFLAGS = @libseccomp_CFLAGS@ +libseccomp_LIBS = @libseccomp_LIBS@ +localedir = @localedir@ +localstatedir = @localstatedir@ +lzip = @lzip@ +lzma = @lzma@ +man_mode = @man_mode@ +man_owner = @man_owner@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +neqn = @neqn@ +nroff = @nroff@ +oldincludedir = @oldincludedir@ +override_dir = @override_dir@ +pager = @pager@ +pdfdir = @pdfdir@ +pic = @pic@ +preconv = @preconv@ +prefix = @prefix@ +program_transform_name = 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+pathsearch.* author - Colin Watson +pipeline.* author - James Clark, Colin Watson +security.* author - John W. Eaton, Wilf., Colin Watson +tempfile.c author - Colin Watson +util.c author - John W. Eaton, Wilf., Colin Watson +wordfnmatch.* author - Colin Watson +xregcomp.* author - Colin Watson diff --git a/lib/appendstr.c b/lib/appendstr.c new file mode 100644 index 0000000..ef07ce8 --- /dev/null +++ b/lib/appendstr.c @@ -0,0 +1,55 @@ +/* appendstr.c -- append to a dynamically allocated string + Copyright (C) 1994 Markus Armbruster + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Library Public License + as published by the Free Software Foundation; either version 2, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING.LIB. If not, write + to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA + 02139, USA. */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include + +#include "manconfig.h" + +/* append strings to first argument, which is realloced to the correct size + first arg may be NULL */ +char *appendstr (char *str, ...) +{ + va_list ap; + size_t len, newlen; + char *next, *end; + + len = str ? strlen (str) : 0; + + va_start (ap, str); + newlen = len + 1; + while ((next = va_arg (ap, char *))) + newlen += strlen (next); + va_end (ap); + + str = xrealloc (str, newlen); + end = str + len; + + va_start (ap, str); + while ((next = va_arg (ap, char *))) { + strcpy (end, next); + end += strlen (next); + } + va_end (ap); + + return str; +} diff --git a/lib/cleanup.c b/lib/cleanup.c new file mode 100644 index 0000000..5aa2e50 --- /dev/null +++ b/lib/cleanup.c @@ -0,0 +1,266 @@ +/* + * cleanup.c -- simple dynamic cleanup function management + * Copyright (C) 1995 Markus Armbruster. + * Copyright (C) 2007 Colin Watson. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; see the file COPYING.LIB. If not, + * write to the Free Software Foundation, Inc., 51 Franklin St, Fifth + * Floor, Boston, MA 02110-1301 USA. +*/ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include /* SunOS's loosing assert.h needs it */ +#include +#include +#include +#include + +#include "manconfig.h" /* for FATAL */ +#include "cleanup.h" + + + +/* Dealing with signals */ + + +/* saved signal actions */ +static struct sigaction saved_hup_action; +static struct sigaction saved_int_action; +static struct sigaction saved_term_action; + + +/* Run cleanups, then reraise signal with default handler. */ +static void +sighandler (int signo) +{ + struct sigaction act; + sigset_t set; + + do_cleanups_sigsafe (1); + + /* set default signal action */ + memset (&act, 0, sizeof act); + act.sa_handler = SIG_DFL; + sigemptyset (&act.sa_mask); + act.sa_flags = 0; + if (sigaction (signo, &act, NULL)) { + /* should not happen */ + _exit (FATAL); /* exit() is taboo from signal handlers! */ + } + + /* unmask signo */ + if ( sigemptyset (&set) + || sigaddset (&set, signo) + || sigprocmask (SIG_UNBLOCK, &set, NULL)) { + /* shouldn't happen */ + _exit (FATAL); /* exit() is taboo from signal handlers! */ + } + + /* signal has now default action and is unmasked, + reraise it to terminate program abnormally */ + kill (getpid(), signo); + abort(); +} + + +/* Save signo's current action to oldact, if its handler is SIG_DFL + install sighandler, return 0 on success, -1 on failure. */ +static int +trap_signal (int signo, struct sigaction *oldact) +{ + if (sigaction (signo, NULL, oldact)) { + return -1; + } + + if (oldact->sa_handler == SIG_DFL) { + struct sigaction act; + + memset (&act, 0, sizeof act); + act.sa_handler = sighandler; + sigemptyset (&act.sa_mask); + act.sa_flags = 0; + return sigaction (signo, &act, oldact); + } + + return 0; +} + + +/* Trap some abnormal exits to call do_cleanups(). */ +static int +trap_abnormal_exits (void) +{ + if ( trap_signal (SIGHUP, &saved_hup_action) + || trap_signal (SIGINT, &saved_int_action) + || trap_signal (SIGTERM, &saved_term_action)) + return -1; + return 0; +} + + +/* Restore signo's action from oldact if its current handler is + sighandler, return 0 on success, -1 on failure. */ +static int +untrap_signal (int signo, struct sigaction *oldact) +{ + struct sigaction act; + if (sigaction (signo, NULL, &act)) { + return -1; + } + + if (act.sa_handler == sighandler) { + return sigaction (signo, oldact, NULL); + } + + return 0; +} + + +/* Undo a previous trap_abnormal_exits(). */ +static int +untrap_abnormal_exits (void) +{ + if ( untrap_signal (SIGHUP, &saved_hup_action) + | untrap_signal (SIGINT, &saved_int_action) + | untrap_signal (SIGTERM, &saved_term_action)) + return -1; + return 0; +} + + + +typedef struct { + cleanup_fun fun; + void *arg; + int sigsafe; +} slot; + +static slot *stack = NULL; /* stack of cleanup functions */ +static unsigned nslots = 0; /* #slots in stack */ +static unsigned tos = 0; /* top of stack, 0 <= tos <= nslots */ + +/* Call cleanup functions in stack from from top to bottom, + * Automatically called on program termination via exit(3) or default + * action for SIGHUP, SIGINT or SIGTERM. + * Since this may be called from a signal handler, do not use free(). + * If in_sighandler is true, cleanup functions with sigsafe=0 will not be + * called. + */ +void +do_cleanups_sigsafe (int in_sighandler) +{ + unsigned i; + + assert (tos <= nslots); + for (i = tos; i > 0; --i) + if (!in_sighandler || stack[i-1].sigsafe) + stack[i-1].fun (stack[i-1].arg); +} + +/* Call cleanup functions in stack from from top to bottom, + * Automatically called on program termination via exit(3). + */ +void +do_cleanups (void) +{ + do_cleanups_sigsafe (0); + tos = 0; + nslots = 0; + free (stack); + stack = NULL; +} + + +/* Push a cleanup function on the cleanup stack, + * return 0 on success, -1 on failure. + * Caution: the cleanup function may be called from signal handlers if + * sigsafe=1. If you just want a convenient atexit() wrapper, pass + * sigsafe=0. + */ +int +push_cleanup (cleanup_fun fun, void *arg, int sigsafe) +{ + static int handler_installed = 0; + + assert (tos <= nslots); + + if (!handler_installed) { + if (atexit (do_cleanups)) + return -1; + handler_installed = 1; + } + + if (tos == nslots) { + /* stack is full, allocate another slot */ + /* stack is not expected to grow much, otherwise we would double it */ + slot *new_stack; + + if (stack) { + new_stack = xnrealloc (stack, nslots+1, sizeof (slot)); + } else { + new_stack = xnmalloc (nslots+1, sizeof (slot)); + } + + if (!new_stack) return -1; + stack = new_stack; + ++nslots; + } + + assert (tos < nslots); + stack[tos].fun = fun; + stack[tos].arg = arg; + stack[tos].sigsafe = sigsafe; + ++tos; + + + trap_abnormal_exits(); + + return 0; +} + + +/* Remove topmost cleanup function from the cleanup stack that matches the + * given values. + */ +void +pop_cleanup (cleanup_fun fun, void *arg) +{ + unsigned i, j; + + assert (tos > 0); + + for (i = tos; i > 0; --i) { + if (stack[i-1].fun == fun && stack[i-1].arg == arg) { + for (j = i; j < tos; ++j) + stack[j-1] = stack[j]; + --tos; + break; + } + } + + if (tos == 0) untrap_abnormal_exits(); +} + + +/* Pop all cleanup functions from the cleanup stack. */ +void +pop_all_cleanups (void) +{ + tos = 0; + untrap_abnormal_exits(); +} diff --git a/lib/cleanup.h b/lib/cleanup.h new file mode 100644 index 0000000..555900d --- /dev/null +++ b/lib/cleanup.h @@ -0,0 +1,33 @@ +/* + * cleanup.h -- simple dynamic cleanup function management + * Copyright (C) 1995 Markus Armbruster. + * Copyright (C) 2007 Colin Watson. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; see the file COPYING.LIB. If not, + * write to the Free Software Foundation, Inc., 51 Franklin St, Fifth + * Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef _CLEANUP_H +#define _CLEANUP_H + +typedef void (*cleanup_fun) (void *); + +extern void do_cleanups_sigsafe (int); +extern void do_cleanups (void); +extern int push_cleanup (cleanup_fun, void *, int); +extern void pop_cleanup (cleanup_fun, void *); +extern void pop_all_cleanups (void); + +#endif /* _CLEANUP_H */ diff --git a/lib/debug.c b/lib/debug.c new file mode 100644 index 0000000..1b75e63 --- /dev/null +++ b/lib/debug.c @@ -0,0 +1,71 @@ +/* + * debug.c: debugging messages + * Copyright (C) 2007 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include +#include +#include +#include +#include + +#include "manconfig.h" + +int debug_level = 0; + +void init_debug (void) +{ + const char *man_debug = getenv ("MAN_DEBUG"); + if (man_debug && STREQ (man_debug, "1")) + debug_level = 1; +} + +static void vdebug (const char *message, va_list args) +{ + if (debug_level) + vfprintf (stderr, message, args); +} + +void debug (const char *message, ...) +{ + if (debug_level) { + va_list args; + + va_start (args, message); + vdebug (message, args); + va_end (args); + } +} + +void debug_error (const char *message, ...) +{ + if (debug_level) { + va_list args; + + va_start (args, message); + vdebug (message, args); + va_end (args); + + debug (": %s\n", strerror (errno)); + } +} diff --git a/lib/decompress.c b/lib/decompress.c new file mode 100644 index 0000000..15dda5b --- /dev/null +++ b/lib/decompress.c @@ -0,0 +1,159 @@ +/* + * decompress.c: decompression abstraction layer + * + * Copyright (C) 2007, 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_LIBZ +# include "zlib.h" +#endif /* HAVE_LIBZ */ + +#include "xvasprintf.h" + +#include "manconfig.h" +#include "comp_src.h" +#include "pipeline.h" +#include "decompress.h" +#include "sandbox.h" + +#ifdef HAVE_LIBZ + +static void decompress_zlib (void *data ATTRIBUTE_UNUSED) +{ + gzFile zlibfile; + int fd; + + fd = dup (STDIN_FILENO); + if (fd < 0) + return; + + zlibfile = gzdopen (fd, "r"); + if (!zlibfile) { + close (fd); + return; + } + + for (;;) { + char buffer[4096]; + int r = gzread (zlibfile, buffer, 4096); + if (r <= 0) + break; + if (fwrite (buffer, 1, (size_t) r, stdout) < (size_t) r) + break; + } + + gzclose (zlibfile); + return; +} + +#endif /* HAVE_LIBZ */ + +extern man_sandbox *sandbox; + +pipeline *decompress_open (const char *filename) +{ + pipecmd *cmd; + pipeline *p; + struct stat st; +#ifdef HAVE_LIBZ + size_t filename_len; +#endif /* HAVE_LIBZ */ + char *ext; + struct compression *comp; + + if (stat (filename, &st) < 0 || S_ISDIR (st.st_mode)) + return NULL; + +#ifdef HAVE_LIBZ + filename_len = strlen (filename); + if (filename_len > 3 && STREQ (filename + filename_len - 3, ".gz")) { + cmd = pipecmd_new_function ("zcat", &decompress_zlib, NULL, + NULL); + pipecmd_pre_exec (cmd, sandbox_load, sandbox_free, sandbox); + p = pipeline_new_commands (cmd, (void *) 0); + goto got_pipeline; + } +#endif /* HAVE_LIBZ */ + + ext = strrchr (filename, '.'); + if (ext) { + ++ext; + + for (comp = comp_list; comp->ext; ++comp) { + if (!STREQ (comp->ext, ext)) + continue; + + cmd = pipecmd_new_argstr (comp->prog); + pipecmd_pre_exec (cmd, sandbox_load, sandbox_free, + sandbox); + p = pipeline_new_commands (cmd, (void *) 0); + goto got_pipeline; + } + } + +#ifdef HAVE_GZIP + /* HP-UX */ + ext = strstr (filename, ".Z/"); + if (ext) { + cmd = pipecmd_new_argstr (GUNZIP); + pipecmd_pre_exec (cmd, sandbox_load, sandbox_free, sandbox); + p = pipeline_new_commands (cmd, (void *) 0); + goto got_pipeline; + } +#endif + + p = pipeline_new (); + +got_pipeline: + pipeline_want_infile (p, filename); + pipeline_want_out (p, -1); + return p; +} + +pipeline *decompress_fdopen (int fd) +{ + pipeline *p; +#ifdef HAVE_LIBZ + pipecmd *cmd; +#endif /* HAVE_LIBZ */ + +#ifdef HAVE_LIBZ + cmd = pipecmd_new_function ("zcat", &decompress_zlib, NULL, NULL); + pipecmd_pre_exec (cmd, sandbox_load, sandbox_free, sandbox); + p = pipeline_new_commands (cmd, (void *) 0); +#else /* HAVE_LIBZ */ + p = pipeline_new (); +#endif /* HAVE_LIBZ */ + + pipeline_want_in (p, fd); + pipeline_want_out (p, -1); + return p; +} diff --git a/lib/decompress.h b/lib/decompress.h new file mode 100644 index 0000000..35f7c51 --- /dev/null +++ b/lib/decompress.h @@ -0,0 +1,40 @@ +/* + * decompress.h: interface to decompression abstraction layer + * + * Copyright (C) 2007 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef MAN_DECOMPRESS_H +#define MAN_DECOMPRESS_H + +#include "pipeline.h" + +struct decompress; + +/* Open a decompressor reading from FILENAME. The caller must start the + * resulting pipeline. + */ +pipeline *decompress_open (const char *filename); + +/* Open a decompressor reading from file descriptor FD. The caller must + * start the resulting pipeline. + */ +pipeline *decompress_fdopen (int fd); + +#endif /* MAN_DECOMPRESS_H */ diff --git a/lib/encodings.c b/lib/encodings.c new file mode 100644 index 0000000..ec8fb6b --- /dev/null +++ b/lib/encodings.c @@ -0,0 +1,915 @@ +/* + * encodings.c: locale and encoding handling for man + * + * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 + * Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include + +#include "gettext.h" +#include "localcharset.h" +#include +#include + +#include "manconfig.h" + +#include "pathsearch.h" +#include "pipeline.h" +#include "decompress.h" + +#include "encodings.h" + + +/* Due to historical limitations in groff (which may be removed in the + * future), there is no mechanism for a man page to specify its own + * encoding. This means that each national language directory needs to carry + * with it information about its encoding, and each groff device needs to + * have a default encoding associated with it. Out of the box, groff + * formally allows only ISO-8859-1 on input; however, patches originating + * with Debian and imported by many other GNU/Linux distributions change + * this somewhat. + * + * Eventually, groff will support proper Unicode input, and much of this + * horror can go away. + * + * Do *not* confuse source encoding with groff encoding. The encoding + * specified in this table is the encoding in which the source man pages in + * each language directory are expected to be written. The groff encoding is + * determined by the selected groff device and sometimes also by the user's + * locale. + * + * The standard output encoding is the encoding assumed for cat pages for + * each language directory. It must *not* be used to discover the actual + * output encoding displayed to the user; that is determined by the locale. + * TODO: it would be useful to be able to change the standard output + * encoding in the configuration file. + * + * This table is expected to change over time, particularly as man pages + * begin to move towards UTF-8. Feel free to patch this for your + * distribution; send me updates for languages I've missed. + * + * Explicit encodings in the directory name (e.g. de_DE.UTF-8) override this + * table. + */ +struct directory_entry { + const char *lang_dir; + const char *source_encoding; +}; + +static struct directory_entry directory_table[] = { + { "C", "ISO-8859-1" }, /* English */ + { "POSIX", "ISO-8859-1" }, /* English */ + { "da", "ISO-8859-1" }, /* Danish */ + { "de", "ISO-8859-1" }, /* German */ + { "en", "ISO-8859-1" }, /* English */ + { "es", "ISO-8859-1" }, /* Spanish */ + { "et", "ISO-8859-1" }, /* Estonian */ + { "fi", "ISO-8859-1" }, /* Finnish */ + { "fr", "ISO-8859-1" }, /* French */ + { "ga", "ISO-8859-1" }, /* Irish */ + { "gl", "ISO-8859-1" }, /* Galician */ + { "id", "ISO-8859-1" }, /* Indonesian */ + { "is", "ISO-8859-1" }, /* Icelandic */ + { "it", "ISO-8859-1" }, /* Italian */ + { "nb", "ISO-8859-1" }, /* Norwegian Bokmål */ + { "nl", "ISO-8859-1" }, /* Dutch */ + { "nn", "ISO-8859-1" }, /* Norwegian Nynorsk */ + { "no", "ISO-8859-1" }, /* Norwegian */ + { "pt", "ISO-8859-1" }, /* Portuguese */ + { "sv", "ISO-8859-1" }, /* Swedish */ + +#ifdef MULTIBYTE_GROFF + /* These languages require a patched version of groff with the + * ascii8 and nippon devices. + */ + { "be", "CP1251" }, /* Belarusian */ + { "bg", "CP1251" }, /* Bulgarian */ + { "cs", "ISO-8859-2" }, /* Czech */ + { "el", "ISO-8859-7" }, /* Greek */ + { "hr", "ISO-8859-2" }, /* Croatian */ + { "hu", "ISO-8859-2" }, /* Hungarian */ + { "ja", "EUC-JP" }, /* Japanese */ + { "ko", "EUC-KR" }, /* Korean */ + { "lt", "ISO-8859-13" }, /* Lithuanian */ + { "lv", "ISO-8859-13" }, /* Latvian */ + { "mk", "ISO-8859-5" }, /* Macedonian */ + { "pl", "ISO-8859-2" }, /* Polish */ + { "ro", "ISO-8859-2" }, /* Romanian */ + { "ru", "KOI8-R" }, /* Russian */ + { "sk", "ISO-8859-2" }, /* Slovak */ + { "sl", "ISO-8859-2" }, /* Slovenian */ + /* sr@latin must precede sr, due to top-down left-substring matching later */ + { "sr@latin", "ISO-8859-2" }, /* Serbian Latin */ + { "sr", "ISO-8859-5" }, /* Serbian */ + { "tr", "ISO-8859-9" }, /* Turkish */ + { "uk", "KOI8-U" }, /* Ukrainian */ + { "vi", "TCVN5712-1" }, /* Vietnamese */ + { "zh_CN", "GBK" }, /* Simplified Chinese */ + { "zh_SG", "GBK" }, /* Simplified Chinese, Singapore */ + { "zh_HK", "BIG5HKSCS" }, /* Traditional Chinese, Hong Kong */ + { "zh_TW", "BIG5" }, /* Traditional Chinese */ +#endif /* MULTIBYTE_GROFF */ + + { NULL, NULL } +}; + +static const char fallback_source_encoding[] = "ISO-8859-1"; + +/* Unfortunately, there is no portable way to inspect iconv's internal table + * of character set aliases. We copy the most interesting ones here so that + * we can deal with them if they appear in directory names. Note that all + * names will be converted to upper case before looking them up in this + * table. + */ +struct charset_alias_entry { + const char *alias; + const char *canonical_name; +}; + +static struct charset_alias_entry charset_alias_table[] = { + /* The FHS is silly and requires numeric-only aliases that iconv + * does not support. + */ + { "88591", "ISO-8859-1" }, + { "88592", "ISO-8859-2" }, + { "88593", "ISO-8859-3" }, + { "88594", "ISO-8859-4" }, + { "88595", "ISO-8859-5" }, + { "88596", "ISO-8859-6" }, + { "88597", "ISO-8859-7" }, + { "88598", "ISO-8859-8" }, + { "88599", "ISO-8859-9" }, + { "885910", "ISO-8859-10" }, + { "885911", "ISO-8859-11" }, + { "885913", "ISO-8859-13" }, + { "885914", "ISO-8859-14" }, + { "885915", "ISO-8859-15" }, + { "885916", "ISO-8859-16" }, + + { "ASCII", "ANSI_X3.4-1968" }, + { "BIG-5", "BIG5" }, + { "BIG5-HKSCS", "BIG5HKSCS" }, + { "EUCCN", "EUC-CN" }, + { "EUCJP", "EUC-JP" }, + { "EUCKR", "EUC-KR" }, + { "EUCTW", "EUC-TW" }, + { "GB2312", "EUC-CN" }, + { "ISO8859-1", "ISO-8859-1" }, + { "ISO8859-2", "ISO-8859-2" }, + { "ISO8859-3", "ISO-8859-3" }, + { "ISO8859-4", "ISO-8859-4" }, + { "ISO8859-5", "ISO-8859-5" }, + { "ISO8859-6", "ISO-8859-6" }, + { "ISO8859-7", "ISO-8859-7" }, + { "ISO8859-8", "ISO-8859-8" }, + { "ISO8859-9", "ISO-8859-9" }, + { "ISO8859-10", "ISO-8859-10" }, + { "ISO8859-11", "ISO-8859-11" }, + { "ISO8859-13", "ISO-8859-13" }, + { "ISO8859-14", "ISO-8859-14" }, + { "ISO8859-15", "ISO-8859-15" }, + { "ISO8859-16", "ISO-8859-16" }, + { "KOI8R", "KOI8-R" }, + { "KOI8U", "KOI8-U" }, + { "UJIS", "EUC-JP" }, + { "US-ASCII", "ANSI_X3.4-1968" }, + { "UTF8", "UTF-8" }, + + { NULL, NULL } +}; + +/* The default groff terminal output device to be used is determined based + * on locale_charset (), which returns the character set used by the current + * locale. + */ +struct charset_entry { + const char *charset_from_locale; + const char *default_device; +}; + +static struct charset_entry charset_table[] = { + { "ANSI_X3.4-1968", "ascii" }, +#ifndef HEIRLOOM_NROFF + { "ISO-8859-1", "latin1" }, +#endif /* HEIRLOOM_NROFF */ + { "UTF-8", "utf8" }, + +#ifndef HEIRLOOM_NROFF +# ifdef MULTIBYTE_GROFF + { "BIG5", "nippon" }, + { "BIG5HKSCS", "nippon" }, + { "EUC-CN", "nippon" }, + { "EUC-JP", "nippon" }, + { "EUC-TW", "nippon" }, + { "GBK", "nippon" }, +# else /* !MULTIBYTE_GROFF */ + /* If we have a smarter version of groff, this is better dealt with + * using either ascii8 (Debian multibyte patch) or preconv (as of + * groff 1.20). This is a not-quite-right stopgap in case we have + * neither. + */ + { "ISO-8859-15", "latin1" }, +# endif /* MULTIBYTE_GROFF */ +#endif /* HEIRLOOM_NROFF */ + + { NULL, NULL } +}; + +static const char *fallback_default_device = +#ifdef MULTIBYTE_GROFF + "ascii8" +#else /* !MULTIBYTE_GROFF */ + "ascii" +#endif /* MULTIBYTE_GROFF */ + ; + +/* The encoding used for the text passed to groff is a function of the + * selected groff device. Traditional devices expect ISO-8859-1 on input + * (yes, even the utf8 device); devices added in the Debian multibyte patch + * expect other encodings. The ascii8 device passes top-bit-set characters + * straight through so is (probably ...) encoding-agnostic. If this encoding + * does not match the source encoding, an iconv pipe is used (if available) + * to perform recoding. + */ +struct device_entry { + const char *roff_device; + const char *roff_encoding; + const char *output_encoding; +}; + +static struct device_entry device_table[] = { + /* nroff devices */ + { "ascii", "ANSI_X3.4-1968", "ANSI_X3.4-1968" }, + { "latin1", "ISO-8859-1", "ISO-8859-1" }, + { "utf8", "ISO-8859-1", "UTF-8" }, + +#ifdef MULTIBYTE_GROFF + { "ascii8", NULL, NULL }, + { "nippon", NULL, NULL }, +#endif /* MULTIBYTE_GROFF */ + +#ifdef HEIRLOOM_NROFF + /* Not strictly accurate, but we only use this in UTF-8 locales. */ + { "locale", "UTF-8", "UTF-8" }, +#endif /* HEIRLOOM_NROFF */ + + /* troff devices */ + { "X75", NULL, NULL }, + { "X75-12", NULL, NULL }, + { "X100", NULL, NULL }, + { "X100-12", NULL, NULL }, + { "dvi", NULL, NULL }, + { "html", NULL, NULL }, + { "lbp", NULL, NULL }, + { "lj4", NULL, NULL }, + { "ps", NULL, NULL }, + + { NULL, NULL, NULL } +}; + +static const char fallback_roff_encoding[] = "ISO-8859-1"; + +/* Setting less_charset to iso8859 tells the less pager that characters + * between 0xA0 and 0xFF are displayable, not that its input is encoded in + * ISO-8859-*. TODO: Perhaps using LESSCHARDEF would be better. + * + * Character set names compatible only with jless go in jless_charset. + */ +struct less_charset_entry { + const char *charset_from_locale; + const char *less_charset; + const char *jless_charset; +}; + +static struct less_charset_entry less_charset_table[] = { + { "ANSI_X3.4-1968", "ascii", NULL }, + { "ISO-8859-1", "iso8859", NULL }, + { "UTF-8", "utf-8", NULL }, + +#ifdef MULTIBYTE_GROFF + { "CP1251", "windows", NULL }, + { "EUC-JP", "iso8859", "japanese-ujis" }, + { "KOI8-R", "koi8-r", NULL }, + /* close enough? */ + { "KOI8-U", "koi8-r", NULL }, +#endif /* MULTIBYTE_GROFF */ + + { NULL, NULL, NULL } +}; + +static const char fallback_less_charset[] = "iso8859"; + +/* Encoding conversions from groff-1.20/src/preproc/preconv/preconv.cpp. + * I've only included those not already recognised by GNU libiconv. + */ +struct conversion_entry { + const char *from; + const char *to; +}; + +static struct conversion_entry conversion_table[] = { + { "chinese-big5", "Big5" }, + { "chinese-euc", "GB2312" }, + { "chinese-iso-8bit", "GB2312" }, + { "cn-gb-2312", "GB2312" }, + { "cp878", "KOI8-R" }, + { "cyrillic-iso-8bit", "ISO-8859-5" }, + { "cyrillic-koi8", "KOI8-R" }, + { "euc-china", "GB2312" }, + { "euc-japan", "EUC-JP" }, + { "euc-japan-1990", "EUC-JP" }, + { "euc-kr", "EUC-KR" }, + { "greek-iso-8bit", "ISO-8859-7" }, + { "iso-latin-1", "ISO-8859-1" }, + { "iso-latin-2", "ISO-8859-2" }, + { "iso-latin-5", "ISO-8859-9" }, + { "iso-latin-7", "ISO-8859-13" }, + { "iso-latin-9", "ISO-8859-15" }, + { "japanese-iso-8bit", "EUC-JP" }, + { "japanese-euc", "EUC-JP" }, + { "jis8", "EUC-JP" }, + { "korean-euc", "EUC-KR" }, + { "korean-iso-8bit", "EUC-KR" }, + { "latin-0", "ISO-8859-15" }, + { "latin-1", "ISO-8859-1" }, + { "latin-2", "ISO-8859-2" }, + { "latin-5", "ISO-8859-9" }, + { "latin-7", "ISO-8859-13" }, + { "mule-utf-16", "UTF-16" }, + { "mule-utf-16be", "UTF-16BE" }, + { "mule-utf-16-be", "UTF-16BE" }, + { "mule-utf-16be-with-signature", "UTF-16" }, + { "mule-utf-16le", "UTF-16LE" }, + { "mule-utf-16-le", "UTF-16LE" }, + { "mule-utf-16le-with-signature", "UTF-16" }, + { "mule-utf-8", "UTF-8" }, + { "utf-16-be", "UTF-16BE" }, + { "utf-16be-with-signature", "UTF-16" }, + { "utf-16-be-with-signature", "UTF-16" }, + { "utf-16-le", "UTF-16LE" }, + { "utf-16le-with-signature", "UTF-16" }, + { "utf-16-le-with-signature", "UTF-16" }, + { NULL, NULL } +}; + +const char *groff_preconv = NULL; + +/* Is the groff "preconv" helper available? If so, return its name. + * Otherwise, return NULL. + */ +const char *get_groff_preconv (void) +{ + if (groff_preconv) { + if (*groff_preconv) + return groff_preconv; + else + return NULL; + } + + if (pathsearch_executable ("gpreconv")) + groff_preconv = "gpreconv"; + else if (pathsearch_executable ("preconv")) + groff_preconv = "preconv"; + else + groff_preconv = ""; + + if (*groff_preconv) + return groff_preconv; + else + return NULL; +} + +/* Return the assumed encoding of the source man page, based on the + * directory in which it was found. The caller should attempt to recode from + * this to whatever encoding is expected by groff. + * + * The caller should free the returned string when it is finished with it. + */ +char *get_page_encoding (const char *lang) +{ + const struct directory_entry *entry; + const char *dot; + + if (!lang || !*lang) { + /* Guess based on the locale. */ + lang = setlocale (LC_MESSAGES, NULL); + if (!lang) + return xstrdup (fallback_source_encoding); + } + + dot = strchr (lang, '.'); + if (dot) { + /* The FHS has the worst specification of what's supposed to + * go after the dot here that I've ever seen. To quote from + * version 2.1: + * + * "It is recommended that this be a numeric representation + * if possible (ISO standards, especially), not include + * additional punctuation symbols, and that any letters be + * in lowercase." + * + * Any sane standard would use directory names like + * de_DE.ISO-8859-1; the examples in the FHS recommend + * de_DE.88591 instead. Considering that there is no other + * conceivable use for encodings in directory names other + * than to pass them to iconv or similar, this is quite + * startlingly useless. + * + * While we now support this thanks to + * get_canonical_charset_name, the FHS specification is + * obviously wrong and I plan to petition to have it + * changed. I recommend ignoring this part of the FHS. + */ + char *dir_encoding = + xstrndup (dot + 1, strcspn (dot + 1, ",@")); + char *canonical_dir_encoding = + xstrdup (get_canonical_charset_name (dir_encoding)); + free (dir_encoding); + return canonical_dir_encoding; + } + + for (entry = directory_table; entry->lang_dir; ++entry) + if (STRNEQ (entry->lang_dir, lang, strlen (entry->lang_dir))) + return xstrdup (entry->source_encoding); + + return xstrdup (fallback_source_encoding); +} + +/* Return the canonical encoding for source man pages in the specified + * language. This ignores any encoding specification in the language + * directory name. The source encoding should be used as a basis for + * determining the correct roff device to use: that is, the caller should + * behave as if it is recoding from the page encoding to the source encoding + * first, although in practice it should recode directly from the page + * encoding to the roff encoding. + * + * You should normally only call this function if the page encoding is + * UTF-8, in which case older versions of groff that lack preconv need to + * have the page recoded to some legacy encoding). If the page is in a + * legacy encoding, then attempting to recode from that to some other legacy + * encoding will probably do more harm than good. + * + * Here are a few concrete examples of why these distinctions are important: + * + * /usr/share/man/en_GB.UTF-8, locale C + * page encoding = UTF-8 + * source encoding = ISO-8859-1 + * roff encoding = ISO-8859-1 + * output encoding = UTF-8 + * UTF-8 -> iconv -> ISO-8859-1 -> groff -Tascii -> ANSI_X3.4-1968 + * + * /usr/share/man/pl_PL.UTF-8, locale pl_PL.UTF-8 + * page encoding = UTF-8 + * source encoding = ISO-8859-2 + * roff encoding = ISO-8859-2 + * output encoding = ISO-8859-2 + * UTF-8 -> iconv -> ISO-8859-2 -> groff -Tascii8 + * -> ISO-8859-2 -> iconv -> UTF-8 + * + * /usr/share/man/ja_JP.EUC-JP, locale ja_JP.UTF-8 + * page encoding = EUC-JP + * source encoding = EUC-JP + * roff encoding = UTF-8 + * output encoding = UTF-8 + * EUC-JP -> iconv -> UTF-8 -> groff -Tutf8 -> UTF-8 + * + * /usr/share/man/en_GB.ISO-8859-15, locale en_GB.UTF-8 + * page encoding = ISO-8859-15 + * source encoding = ISO-8859-15 + * roff encoding = ISO-8859-15 + * output encoding = ISO-8859-15 + * ISO-8859-15 -> groff -Tascii8 -> ISO-8859-15 -> iconv -> UTF-8 + */ +const char *get_source_encoding (const char *lang) +{ + const struct directory_entry *entry; + + if (!lang || !*lang) { + /* Guess based on the locale. */ + lang = setlocale (LC_MESSAGES, NULL); + if (!lang) + return fallback_source_encoding; + } + + for (entry = directory_table; entry->lang_dir; ++entry) + if (STRNEQ (entry->lang_dir, lang, strlen (entry->lang_dir))) + return entry->source_encoding; + + return fallback_source_encoding; +} + +const char *get_canonical_charset_name (const char *charset) +{ + const struct charset_alias_entry *entry; + char *charset_upper = xstrdup (charset); + char *p; + + for (p = charset_upper; *p; ++p) + *p = CTYPE (toupper, *p); + + for (entry = charset_alias_table; entry->alias; ++entry) + if (STREQ (entry->alias, charset_upper)) { + free (charset_upper); + return entry->canonical_name; + } + + free (charset_upper); + return charset; +} + +/* Return the current locale's character set. */ +const char *get_locale_charset (void) +{ + const char *charset; + char *saved_locale; + + /* We need to modify LC_CTYPE temporarily in order to look at the + * codeset, so save it first. + */ + saved_locale = setlocale (LC_CTYPE, NULL); + if (saved_locale) + saved_locale = xstrdup (saved_locale); + + setlocale (LC_CTYPE, ""); + + charset = locale_charset (); + + /* Restore LC_CTYPE to its value on entry to this function. */ + setlocale (LC_CTYPE, saved_locale); + free (saved_locale); + + if (charset && *charset) + return get_canonical_charset_name (charset); + else + return NULL; +} + +/* Find a locale with this character set. This is a non-portable operation, + * but required to make col(1) work correctly with -E. If no locale can be + * found, or if none needs to be set, return NULL. + * + * The caller should free the returned string when it is finished with it. + */ +char *find_charset_locale (const char *charset) +{ + const char *canonical_charset = get_canonical_charset_name (charset); + char *saved_locale; + const char supported_path[] = "/usr/share/i18n/SUPPORTED"; + FILE *supported = NULL; + char *line = NULL; + size_t n = 0; + char *locale = NULL; + + if (STREQ (charset, get_locale_charset ())) + return NULL; + + saved_locale = setlocale (LC_CTYPE, NULL); + if (saved_locale) + saved_locale = xstrdup (saved_locale); + + supported = fopen (supported_path, "r"); + while (supported && getline (&line, &n, supported) >= 0) { + const char *space = strchr (line, ' '); + if (space) { + char *encoding = xstrdup (space + 1); + char *newline = strchr (encoding, '\n'); + if (newline) + *newline = 0; + if (STREQ (canonical_charset, + get_canonical_charset_name (encoding))) { + locale = xstrndup (line, space - line); + /* Is this locale actually installed? */ + if (setlocale (LC_CTYPE, locale)) { + free (encoding); + goto out; + } else { + free (locale); + locale = NULL; + } + } + free (encoding); + } + free (line); + line = NULL; + } + + if (strlen (canonical_charset) >= 5 && + STRNEQ (canonical_charset, "UTF-8", 5)) { + locale = xstrdup ("C.UTF-8"); + if (setlocale (LC_CTYPE, locale)) + goto out; + free (locale); + locale = xstrdup ("en_US.UTF-8"); + if (setlocale (LC_CTYPE, locale)) + goto out; + free (locale); + locale = NULL; + } + +out: + free (line); + setlocale (LC_CTYPE, saved_locale); + free (saved_locale); + if (supported) + fclose (supported); + return locale; +} + +/* Can we take this input encoding and produce this output encoding, perhaps + * with the help of some iconv pipes? */ +static int compatible_encodings (const char *input, const char *output) +{ + if (STREQ (input, output)) + return 1; + + /* If the input is ASCII, recoding should be easy. Try it. */ + if (STREQ (input, "ANSI_X3.4-1968")) + return 1; + + /* If the input is UTF-8, it's either a simple recoding of whatever + * we want or else it probably won't work at all no matter what we + * do. We might as well try it for now. + */ + if (STREQ (input, "UTF-8")) + return 1; + + /* If the output is ASCII, this is probably because the caller + * explicitly asked for it, so we have little choice but to try. + */ + if (STREQ (output, "ANSI_X3.4-1968")) + return 1; + +#ifdef MULTIBYTE_GROFF + /* Special case for some CJK UTF-8 locales, which take UTF-8 input + * recoded from EUC-JP (etc.) and produce UTF-8 output. This is + * rather filthy. + */ + if ((STREQ (input, "BIG5") || STREQ (input, "BIG5HKSCS") || + STREQ (input, "EUC-JP") || + STREQ (input, "EUC-CN") || STREQ (input, "GBK") || + STREQ (input, "EUC-KR") || + STREQ (input, "EUC-TW")) && + STREQ (output, "UTF-8")) + return 1; +#endif /* MULTIBYTE_GROFF */ + + return 0; +} + +/* Return the default groff device for the given character set. This may be + * overridden by the user. The page's source encoding is needed to ensure + * that the device is compatible: consider ru_RU.UTF-8, which needs ascii8 + * and a trailing iconv pipe to recode to UTF-8. + * + * All this encoding compatibility stuff feels like a slightly nasty hack, + * but I haven't yet come up with a cleaner way to do it. + */ +const char *get_default_device (const char *charset_from_locale, + const char *source_encoding) +{ + const struct charset_entry *entry; + + if (get_groff_preconv ()) { + /* ASCII is a special case, and the only way we can get + * things like bullet marks to come out right is by using + * the ascii device. People using such a basic locale + * probably don't want anything fancy anyway. + */ + if (charset_from_locale && + STREQ (charset_from_locale, "ANSI_X3.4-1968")) + return "ascii"; + else + return "utf8"; + } + + if (!charset_from_locale) + return fallback_default_device; + + for (entry = charset_table; entry->charset_from_locale; ++entry) { + if (STREQ (entry->charset_from_locale, charset_from_locale)) { + const char *roff_encoding = + get_roff_encoding (entry->default_device, + source_encoding); + if (compatible_encodings (source_encoding, + roff_encoding)) + return entry->default_device; + } + } + + return fallback_default_device; +} + +/* Is this a known *roff device name? */ +int is_roff_device (const char *device) +{ + const struct device_entry *entry; + + for (entry = device_table; entry->roff_device; ++entry) { + if (STREQ (entry->roff_device, device)) + return 1; + } + + return 0; +} + +/* Find the input encoding expected by groff, and set the LESSCHARSET + * environment variable appropriately. + */ +const char *get_roff_encoding (const char *device, const char *source_encoding) +{ + const struct device_entry *entry; + int found = 0; + const char *roff_encoding = NULL; + + if (device) { + for (entry = device_table; entry->roff_device; ++entry) { + if (STREQ (entry->roff_device, device)) { + found = 1; + roff_encoding = entry->roff_encoding; + break; + } + } + } + + if (!found) + roff_encoding = fallback_roff_encoding; + +#ifdef MULTIBYTE_GROFF + /* An ugly special case is needed here. The utf8 device normally + * takes ISO-8859-1 input. However, with the multibyte patch, when + * recoding from CJK character sets it takes UTF-8 input instead. + * This is evil, but there's not much that can be done about it + * apart from waiting for groff 2.0. + */ + if (device && STREQ (device, "utf8") && !get_groff_preconv () && + STREQ (get_locale_charset (), "UTF-8")) { + const char *ctype = setlocale (LC_CTYPE, NULL); + if (STRNEQ (ctype, "ja_JP", 5) || + STRNEQ (ctype, "ko_KR", 5) || + STRNEQ (ctype, "zh_CN", 5) || + STRNEQ (ctype, "zh_HK", 5) || + STRNEQ (ctype, "zh_SG", 5) || + STRNEQ (ctype, "zh_TW", 5)) + roff_encoding = "UTF-8"; + } +#endif /* MULTIBYTE_GROFF */ + + return roff_encoding ? roff_encoding : source_encoding; +} + +/* Find the output encoding that this device will produce, or NULL if it + * will simply pass through the input encoding. + */ +const char *get_output_encoding (const char *device) +{ + const struct device_entry *entry; + + for (entry = device_table; entry->roff_device; ++entry) + if (STREQ (entry->roff_device, device)) + return entry->output_encoding; + + return NULL; +} + +/* Return the value of LESSCHARSET appropriate for this locale. */ +const char *get_less_charset (const char *charset_from_locale) +{ + const struct less_charset_entry *entry; + + if (charset_from_locale) { + for (entry = less_charset_table; entry->charset_from_locale; + ++entry) + if (STREQ (entry->charset_from_locale, + charset_from_locale)) + return entry->less_charset; + } + + return fallback_less_charset; +} + +/* Return the value of JLESSCHARSET appropriate for this locale. May return + * NULL. + */ +const char *get_jless_charset (const char *charset_from_locale) +{ + const struct less_charset_entry *entry; + + if (charset_from_locale) { + for (entry = less_charset_table; entry->charset_from_locale; + ++entry) + if (STREQ (entry->charset_from_locale, + charset_from_locale)) + return entry->jless_charset; + } + + return NULL; +} + +/* Convert Emacs-style coding tags to ones that libiconv understands. */ +static char *convert_encoding (char *encoding) +{ + size_t encoding_len = strlen (encoding); + const struct conversion_entry *entry; + +#define STRIP(s, l) do { \ + if (encoding_len > (l) && \ + !strcasecmp (encoding + encoding_len - (l), (s))) \ + encoding[encoding_len - (l)] = '\0'; \ +} while (0) + + STRIP ("-dos", 4); + STRIP ("-mac", 4); + STRIP ("-unix", 5); + +#undef STRIP + + for (entry = conversion_table; entry->from; ++entry) + if (!strcasecmp (entry->from, encoding)) { + free (encoding); + return xstrdup (entry->to); + } + + return encoding; +} + +/* Inspect the first line of data in a pipeline for preprocessor encoding + * declarations. + */ +char *check_preprocessor_encoding (pipeline *p) +{ + char *pp_encoding = NULL; + +#ifdef PP_COOKIE + const char *line = pipeline_peekline (p); + char *directive = NULL; + + /* Some people use .\" incorrectly. We allow it for encoding + * declarations but not for preprocessor declarations. + */ + if (line && + (STRNEQ (line, PP_COOKIE, 4) || STRNEQ (line, ".\\\" ", 4))) { + const char *newline = strchr (line, '\n'); + if (newline) + directive = xstrndup (line + 4, + newline - (line + 4)); + else + directive = xstrdup (line + 4); + } + + if (directive && strstr (directive, "-*-")) { + const char *pp_search = strstr (directive, "-*-") + 3; + while (pp_search && *pp_search) { + while (*pp_search == ' ') + ++pp_search; + if (STRNEQ (pp_search, "coding:", 7)) { + const char *pp_encoding_allow; + size_t pp_encoding_len; + pp_search += 7; + while (*pp_search == ' ') + ++pp_search; + pp_encoding_allow = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789-_/:.()"; + pp_encoding_len = strspn (pp_search, + pp_encoding_allow); + pp_encoding = xstrndup (pp_search, + pp_encoding_len); + pp_encoding = convert_encoding (pp_encoding); + debug ("preprocessor encoding: %s\n", + pp_encoding); + break; + } else { + pp_search = strchr (pp_search, ';'); + if (pp_search) + ++pp_search; + } + } + } + free (directive); +#endif /* PP_COOKIE */ + + return pp_encoding; +} diff --git a/lib/encodings.h b/lib/encodings.h new file mode 100644 index 0000000..9967a89 --- /dev/null +++ b/lib/encodings.h @@ -0,0 +1,37 @@ +/* + * encodings.h: Interface to locale and encoding handling for man + * + * Copyright (C) 2003, 2004, 2006, 2007, 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +const char *get_groff_preconv (void); +char *get_page_encoding (const char *lang); +const char *get_source_encoding (const char *lang); +const char *get_canonical_charset_name (const char *charset); +const char *get_locale_charset (void); +char *find_charset_locale (const char *charset); +const char *get_default_device (const char *locale_charset, + const char *source_encoding); +int is_roff_device (const char *device); +const char *get_roff_encoding (const char *device, + const char *source_encoding); +const char *get_output_encoding (const char *device); +const char *get_less_charset (const char *locale_charset); +const char *get_jless_charset (const char *locale_charset); +char *check_preprocessor_encoding (struct pipeline *p); diff --git a/lib/hashtable.c b/lib/hashtable.c new file mode 100644 index 0000000..85fbb04 --- /dev/null +++ b/lib/hashtable.c @@ -0,0 +1,232 @@ +/* + * hashtable.c: in core hash table routines. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * All of these routines except hashtable_free() can be found in K&R II. + * + * Sat Aug 20 15:01:02 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +/* which hash function do we want ? */ +/* #define PROLOGUE */ +#define KRII + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include + +#include "manconfig.h" +#include "hashtable.h" + +#if defined(PROLOGUE) +#define HASHSIZE 2048 +#elif defined(KRII) +#define HASHSIZE 2001 +#else +#error hash function not defined +#endif + +/* Return hash value for string. */ +static unsigned int hash (const char *s, size_t len) +{ + unsigned int hashval = 0; + size_t i; + + for (i = 0; i < len && s[i]; ++i) +#if defined(KRII) + hashval = s[i] + 31 * hashval; + return hashval % HASHSIZE; +#elif defined(PROLOGUE) + hashval = (hashval << 1) + s[i]; + return hashval & (HASHSIZE - 1); +#endif +} + +void null_hashtable_free (void *defn ATTRIBUTE_UNUSED) +{ +} + +/* Create a hashtable. */ +struct hashtable *hashtable_create (hashtable_free_ptr free_defn) +{ + struct hashtable *ht = XMALLOC (struct hashtable); + ht->hashtab = XCALLOC (HASHSIZE, struct nlist *); + ht->unique = 0; + ht->identical = 0; + ht->free_defn = free_defn; + return ht; +} + +/* Return pointer to hash entry structure containing s, or NULL if it + * doesn't exist. + */ +struct nlist *hashtable_lookup_structure (const struct hashtable *ht, + const char *s, size_t len) +{ + struct nlist *np; + + for (np = ht->hashtab[hash (s, len)]; np; np = np->next) { + if (strncmp (s, np->name, len) == 0) + return np; + } + return NULL; +} + +/* Return pointer to definition of s, or NULL if it doesn't exist. */ +void *hashtable_lookup (const struct hashtable *ht, const char *s, size_t len) +{ + struct nlist *np = hashtable_lookup_structure (ht, s, len); + if (np) + return np->defn; + else + return NULL; +} + +/* Return structure containing definition (never NULL). */ +struct nlist *hashtable_install (struct hashtable *ht, + const char *name, size_t len, void *defn) +{ + struct nlist *np; + + np = hashtable_lookup_structure (ht, name, len); + if (np) { + if (np->defn) + ht->free_defn (np->defn); + } else { + unsigned int hashval; + + np = XMALLOC (struct nlist); + np->name = xstrndup (name, len); + hashval = hash (name, len); + + /* record uniqueness if debugging */ + if (debug_level) { + if (ht->hashtab[hashval]) + ht->identical++; + else + ht->unique++; + } + + /* point to last entry with this hash */ + np->next = ht->hashtab[hashval]; + + /* attach to hashtab array */ + ht->hashtab[hashval] = np; + } + + np->defn = defn; + + return np; +} + +/* Remove structure containing name from the hash tree. */ +void hashtable_remove (struct hashtable *ht, const char *name, size_t len) +{ + struct nlist *np, *prev; + unsigned int hashval = hash (name, len); + + for (np = ht->hashtab[hashval], prev = NULL; np; + prev = np, np = np->next) { + if (strncmp (name, np->name, len) == 0) { + if (prev) + prev->next = np->next; + else + ht->hashtab[hashval] = np->next; + if (np->defn) + ht->free_defn (np->defn); + free (np->name); + free (np); + return; + } + } +} + +struct hashtable_iter { + struct nlist **bucket; + struct nlist *np; +}; + +/* Iterate over hash. Do not modify hash while iterating. */ +struct nlist *hashtable_iterate (const struct hashtable *ht, + struct hashtable_iter **iterp) +{ + struct hashtable_iter *iter = *iterp; + + if (!iter) + *iterp = iter = XZALLOC (struct hashtable_iter); + + if (iter->np && iter->np->next) + return iter->np = iter->np->next; + + if (iter->bucket) + ++iter->bucket; + else + iter->bucket = ht->hashtab; + + while (iter->bucket < ht->hashtab + HASHSIZE) { + if (*iter->bucket) + return iter->np = *iter->bucket; + ++iter->bucket; + } + + free (iter); + *iterp = NULL; + return NULL; +} + +/* Free up the hash tree (garbage collection). Also call the free_defn() + * hook to free up values if necessary. + */ +void hashtable_free (struct hashtable *ht) +{ + int i; + + if (!ht) + return; + + debug ("hashtable_free: %d entries, %d (%d%%) unique\n", + ht->unique + ht->identical, + ht->unique, + ht->unique ? (ht->unique * 100) / (ht->unique + ht->identical) + : 0); + + for (i = 0; i < HASHSIZE; i++) { + struct nlist *np; + + np = ht->hashtab[i]; + while (np) { + struct nlist *next; + + if (np->defn) + ht->free_defn (np->defn); + free (np->name); + next = np->next; + free (np); + np = next; + } + } + + free (ht->hashtab); + free (ht); +} diff --git a/lib/hashtable.h b/lib/hashtable.h new file mode 100644 index 0000000..3924518 --- /dev/null +++ b/lib/hashtable.h @@ -0,0 +1,61 @@ +/* + * hashtable.h: contains struct nlist + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2002, 2003, 2004, 2005, 2007, 2009 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Sat Aug 20 15:01:02 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +#ifndef _HASHTABLE_H +#define _HASHTABLE_H + +typedef void (*hashtable_free_ptr) (void *defn); + +struct hashtable { + struct nlist **hashtab; /* the storage array */ + int unique; /* unique hash values */ + int identical; /* identical hash values */ + hashtable_free_ptr free_defn; /* function to free a hash entry */ +}; + +struct nlist { + struct nlist *next; /* next in the chain */ + char *name; /* the _name_ */ + void *defn; /* the _definition_ */ +}; + +struct hashtable_iter; + +extern void null_hashtable_free (void *defn); + +extern struct hashtable *hashtable_create (hashtable_free_ptr free_defn); +extern struct nlist *hashtable_lookup_structure (const struct hashtable *ht, + const char *s, size_t len); +extern void *hashtable_lookup (const struct hashtable *ht, + const char *s, size_t len); +extern struct nlist *hashtable_install (struct hashtable *ht, + const char *name, size_t len, + void *defn); +extern struct nlist *hashtable_iterate (const struct hashtable *ht, + struct hashtable_iter **iterp); +extern void hashtable_remove (struct hashtable *ht, const char *s, size_t len); +extern void hashtable_free (struct hashtable *ht); + +#endif /* _HASHTABLE_H */ diff --git a/lib/linelength.c b/lib/linelength.c new file mode 100644 index 0000000..69a702f --- /dev/null +++ b/lib/linelength.c @@ -0,0 +1,108 @@ +/* + * linelength.c: find the terminal line length + * Preferences: 1. MANWIDTH, 2. COLUMNS, 3. ioctl, 4. 80 + * + * Originally adapted from Andries Brouwer's man implementation, also + * released under the GPL: authors believed to include Martin Schulze and + * Jon Tombs, dated 1995/09/02. + * + * Changes for man-db copyright (C) 2001, 2003, 2007 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef _PATH_TTY +# define _PATH_TTY "/dev/tty" +#endif /* _PATH_TTY */ + +static int line_length = -1; + +int get_line_length (void) +{ + const char *columns; + int width; +#ifdef TIOCGWINSZ + int dev_tty, tty_fd = -1; +#endif + + if (line_length != -1) + return line_length; + + line_length = 80; + + columns = getenv ("MANWIDTH"); + if (columns != NULL) { + width = atoi (columns); + if (width > 0) + return line_length = width; + } + + columns = getenv ("COLUMNS"); + if (columns != NULL) { + width = atoi (columns); + if (width > 0) + return line_length = width; + } + +#ifdef TIOCGWINSZ + /* Original TIOCGWINSZ approach was from Jon Tombs. + * We don't require both stdin and stdout to be a tty, and line + * length is primarily a property of output. However, if it happens + * that stdin is connected to a terminal but stdout isn't, then that + * may well be because the user is trying something like + * 'MAN_KEEP_STDERR=1 man foo >/dev/null' to see just the error + * messages, so use the window size from stdin as a fallback. + * In some cases we may have neither (e.g. if man is running inside + * lesspipe); /dev/tty should be a reliable way to get to the + * current tty if it exists. + */ + dev_tty = open (_PATH_TTY, O_RDONLY); + if (dev_tty >= 0) + tty_fd = dev_tty; + else if (isatty (STDOUT_FILENO)) + tty_fd = STDOUT_FILENO; + else if (isatty (STDIN_FILENO)) + tty_fd = STDIN_FILENO; + if (tty_fd >= 0) { + int ret; + struct winsize wsz; + + ret = ioctl (tty_fd, TIOCGWINSZ, &wsz); + if (dev_tty >= 0) + close (dev_tty); + if (ret) + perror ("TIOCGWINSZ failed"); + else if (wsz.ws_col) + return line_length = wsz.ws_col; + } +#endif + + return line_length = 80; +} diff --git a/lib/linelength.h b/lib/linelength.h new file mode 100644 index 0000000..49d958f --- /dev/null +++ b/lib/linelength.h @@ -0,0 +1,23 @@ +/* + * linelength.h: interface to find the terminal line length + * + * Copyright (C) 2007 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +int get_line_length (void); diff --git a/lib/lower.c b/lib/lower.c new file mode 100644 index 0000000..e620fb7 --- /dev/null +++ b/lib/lower.c @@ -0,0 +1,47 @@ +/* + * lower.c: return lower-case copy of a string + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2003, 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include + +#include "manconfig.h" + +#include "lower.h" + +/* return lowered version of s */ +char *lower (const char *s) +{ + char *low, *p; + + p = low = xmalloc (strlen (s) + 1); + + while (*s) + *p++ = CTYPE (tolower, *s++); + + *p = *s; + return low; +} diff --git a/lib/lower.h b/lib/lower.h new file mode 100644 index 0000000..571de33 --- /dev/null +++ b/lib/lower.h @@ -0,0 +1,24 @@ +/* + * lower.h: interface to return lower-case copy of a string + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2003, 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +char *lower (const char *s); diff --git a/lib/orderfiles.c b/lib/orderfiles.c new file mode 100644 index 0000000..d67f4d8 --- /dev/null +++ b/lib/orderfiles.c @@ -0,0 +1,164 @@ +/* + * orderfiles.c: order file accesses to optimise disk load + * + * Copyright (C) 2014 Colin Watson. + * + * Inspired by and loosely based on dpkg/src/filesdb.c, which is: + * Copyright (C) 1995 Ian Jackson + * Copyright (C) 2000,2001 Wichert Akkerman + * Copyright (C) 2008-2014 Guillem Jover + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#ifdef HAVE_LINUX_FIEMAP_H +# include +# include +# include +# include +#endif /* HAVE_LINUX_FIEMAP_H */ + +#include +#include +#include +#include +#include +#include +#include + +#include "manconfig.h" + +#include "hashtable.h" + +struct hashtable *physical_offsets = NULL; + +#if defined(HAVE_LINUX_FIEMAP_H) +int compare_physical_offsets (const void *a, const void *b) +{ + const char *left = *(const char **) a; + const char *right = *(const char **) b; + uint64_t *left_offset_p = hashtable_lookup (physical_offsets, + left, strlen (left)); + uint64_t *right_offset_p = hashtable_lookup (physical_offsets, + right, strlen (right)); + uint64_t left_offset = left_offset_p ? *left_offset_p : UINT64_MAX; + uint64_t right_offset = right_offset_p ? *right_offset_p : UINT64_MAX; + + if (left_offset < right_offset) + return -1; + else if (left_offset > right_offset) + return 1; + else + return 0; +} + +void order_files (const char *dir, char **basenames, size_t n_basenames) +{ + int dir_fd_open_flags; + int dir_fd; + struct statfs fs; + size_t i; + + dir_fd_open_flags = O_SEARCH | O_DIRECTORY; +#ifdef O_PATH + dir_fd_open_flags |= O_PATH; +#endif + dir_fd = open (dir, dir_fd_open_flags); + if (dir_fd < 0) + return; + + if (fstatfs (dir_fd, &fs) < 0) { + close (dir_fd); + return; + } + + /* Sort files by the physical locations of their first blocks, in an + * attempt to minimise disk drive head movements. This assumes that + * files are small enough that they are likely to be in one block or + * a small number of contiguous blocks, which seems a reasonable + * assumption for manual pages. + */ + physical_offsets = hashtable_create (&free); + for (i = 0; i < n_basenames; ++i) { + struct { + struct fiemap fiemap; + struct fiemap_extent extent; + } fm; + int fd; + + fd = openat (dir_fd, basenames[i], O_RDONLY); + if (fd < 0) + continue; + + memset (&fm, 0, sizeof (fm)); + fm.fiemap.fm_start = 0; + fm.fiemap.fm_length = fs.f_bsize; + fm.fiemap.fm_flags = 0; + fm.fiemap.fm_extent_count = 1; + + if (ioctl (fd, FS_IOC_FIEMAP, (unsigned long) &fm) == 0) { + uint64_t *offset = XMALLOC (uint64_t); + *offset = fm.fiemap.fm_extents[0].fe_physical; + hashtable_install (physical_offsets, basenames[i], + strlen (basenames[i]), offset); + } + + close (fd); + } + qsort (basenames, n_basenames, sizeof *basenames, + compare_physical_offsets); + hashtable_free (physical_offsets); + physical_offsets = NULL; + close (dir_fd); +} +#elif defined(HAVE_POSIX_FADVISE) +void order_files (const char *dir, char **basenames, size_t n_basenames) +{ + int dir_fd_open_flags; + int dir_fd; + size_t i; + + dir_fd_open_flags = O_SEARCH | O_DIRECTORY; +#ifdef O_PATH + dir_fd_open_flags |= O_PATH; +#endif + dir_fd = open (dir, dir_fd_open_flags); + if (dir_fd < 0) + return; + + /* While we can't actually order the files, we can at least ask the + * kernel to preload them. + */ + for (i = 0; i < n_basenames; ++i) { + int fd = openat (dir_fd, basenames[i], O_RDONLY | O_NONBLOCK); + if (fd >= 0) { + posix_fadvise (fd, 0, 0, POSIX_FADV_WILLNEED); + close (fd); + } + } + + close (dir_fd); +} +#else +void order_files (const char *dir, char **basenames, size_t n_basenames) +{ +} +#endif diff --git a/lib/orderfiles.h b/lib/orderfiles.h new file mode 100644 index 0000000..b4e6689 --- /dev/null +++ b/lib/orderfiles.h @@ -0,0 +1,23 @@ +/* + * orderfiles.h: interface to ordering file accesses to optimise disk load + * + * Copyright (C) 2014 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +void order_files (const char *dir, char **basenames, size_t n_basenames); diff --git a/lib/pathsearch.c b/lib/pathsearch.c new file mode 100644 index 0000000..402f7d1 --- /dev/null +++ b/lib/pathsearch.c @@ -0,0 +1,130 @@ +/* + * pathsearch.c: $PATH-searching functions. + * + * Copyright (C) 2004, 2007, 2008, 2009, 2011 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include + +#include +#include +#include + +#include "xgetcwd.h" +#include "xvasprintf.h" + +#include "manconfig.h" +#include "pathsearch.h" + +static int pathsearch (const char *name, const mode_t bits) +{ + char *cwd = NULL; + char *path = getenv ("PATH"); + char *pathtok; + const char *element; + struct stat st; + int ret = 0; + + if (!path) + /* Eh? Oh well. */ + return 0; + + if (strchr (name, '/')) { + /* Qualified name; look directly. */ + if (stat (name, &st) == -1) + return 0; + if (S_ISREG (st.st_mode) && (st.st_mode & bits)) + return 1; + return 0; + } + + pathtok = path = xstrdup (path); + + /* Unqualified name; iterate over $PATH looking for it. */ + for (element = strsep (&pathtok, ":"); element; + element = strsep (&pathtok, ":")) { + char *filename; + + if (!*element) { + if (!cwd) + cwd = xgetcwd (); + element = cwd; + } + + filename = xasprintf ("%s/%s", element, name); + if (stat (filename, &st) == -1) { + free (filename); + continue; + } + + free (filename); + + if (S_ISREG (st.st_mode) && (st.st_mode & bits)) { + ret = 1; + break; + } + } + + free (path); + free (cwd); + return ret; +} + +int pathsearch_executable (const char *name) +{ + return pathsearch (name, 0111); +} + +int directory_on_path (const char *dir) +{ + char *cwd = NULL; + char *path = getenv ("PATH"); + char *pathtok; + const char *element; + int ret = 0; + + if (!path) + /* Eh? Oh well. */ + return 0; + + pathtok = path = xstrdup (path); + + for (element = strsep (&pathtok, ":"); element; + element = strsep (&pathtok, ":")) { + if (!*element) { + if (!cwd) + cwd = xgetcwd (); + element = cwd; + } + + if (STREQ (element, dir)) { + ret = 1; + break; + } + } + + free (path); + free (cwd); + return ret; +} diff --git a/lib/pathsearch.h b/lib/pathsearch.h new file mode 100644 index 0000000..970fbee --- /dev/null +++ b/lib/pathsearch.h @@ -0,0 +1,34 @@ +/* + * pathsearch.h: interface to $PATH-searching functions + * + * Copyright (C) 2004 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef PATHSEARCH_H +#define PATHSEARCH_H + +/* Return non-zero if NAME is found as an executable regular file on the + * $PATH. + */ +int pathsearch_executable (const char *name); + +/* Return non-zero if DIR matches an entry on the $PATH. */ +int directory_on_path (const char *dir); + +#endif /* PATHSEARCH_H */ diff --git a/lib/sandbox.c b/lib/sandbox.c new file mode 100644 index 0000000..c097482 --- /dev/null +++ b/lib/sandbox.c @@ -0,0 +1,636 @@ +/* + * sandbox.c: Process sandboxing + * + * Copyright (C) 2017 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Some of the syscall lists in this file come from systemd, whose + * copyright/licensing statement is as follows. Per LGPLv2.1 s. 3, I have + * altered the original references to LGPLv2.1 to refer to GPLv2 instead. + * + * Copyright 2014 Lennart Poettering + * + * systemd is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * systemd is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with systemd; If not, see . + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_LIBSECCOMP +# include +# include +# include +# include +# include +# include +# include +# include +#endif /* HAVE_LIBSECCOMP */ + +#include "manconfig.h" + +#include "error.h" + +#include "sandbox.h" + +struct man_sandbox { +#ifdef HAVE_LIBSECCOMP + scmp_filter_ctx ctx; + scmp_filter_ctx permissive_ctx; +#else /* !HAVE_LIBSECCOMP */ + char dummy; +#endif /* HAVE_LIBSECCOMP */ +}; + +#ifdef HAVE_LIBSECCOMP +static int seccomp_filter_unavailable = 0; + +static void gripe_seccomp_filter_unavailable (void) +{ + debug ("seccomp filtering requires a kernel configured with " + "CONFIG_SECCOMP_FILTER\n"); +} + +static int search_ld_preload (const char *needle) +{ + const char *ld_preload_env; + static char *ld_preload_file = NULL; + + ld_preload_env = getenv ("LD_PRELOAD"); + if (ld_preload_env && strstr (ld_preload_env, needle) != NULL) + return 1; + + if (!ld_preload_file) { + int fd; + struct stat st; + char *mapped = NULL; + + fd = open ("/etc/ld.so.preload", O_RDONLY); + if (fd >= 0 && fstat (fd, &st) >= 0 && st.st_size) + mapped = mmap (NULL, st.st_size, PROT_READ, + MAP_PRIVATE | MAP_FILE, fd, 0); + if (mapped) { + ld_preload_file = xstrndup (mapped, st.st_size); + munmap (mapped, st.st_size); + } else + ld_preload_file = xstrdup (""); + if (fd >= 0) + close (fd); + } + /* This isn't very accurate: /etc/ld.so.preload may contain + * comments. On the other hand, glibc says "it should only be used + * for emergencies and testing". File a bug if this is a problem + * for you. + */ + if (strstr (ld_preload_file, needle) != NULL) + return 1; + + return 0; +} + +/* Can we load a seccomp filter into this process? + * + * This guard allows us to call sandbox_load in code paths that may + * conditionally do so again. + */ +static int can_load_seccomp (void) +{ + const char *man_disable_seccomp; + int seccomp_status; + + if (seccomp_filter_unavailable) { + gripe_seccomp_filter_unavailable (); + return 0; + } + + man_disable_seccomp = getenv ("MAN_DISABLE_SECCOMP"); + if (man_disable_seccomp && *man_disable_seccomp) { + debug ("seccomp filter disabled by user request\n"); + return 0; + } + + /* Valgrind causes the child process to make some system calls we + * don't want to allow in general, so disable seccomp when running + * on Valgrind. + * + * The correct approach seems to be to either require valgrind.h at + * build-time or copy valgrind.h into this project and then use the + * RUNNING_ON_VALGRIND macro, but I'd really rather not add a + * build-dependency for this or take a copy of a >6000-line header + * file. Since the goal of this is only to disable the seccomp + * filter under Valgrind, this will do for now. + */ + if (search_ld_preload ("/vgpreload")) { + debug ("seccomp filter disabled while running under " + "Valgrind\n"); + return 0; + } + + seccomp_status = prctl (PR_GET_SECCOMP); + + if (seccomp_status == 0) + return 1; + + if (seccomp_status == -1) { + if (errno == EINVAL) + debug ("running kernel does not support seccomp\n"); + else + debug ("unknown error getting seccomp status: %s\n", + strerror (errno)); + } else if (seccomp_status == 2) + debug ("seccomp already enabled\n"); + else + debug ("unknown return value from PR_GET_SECCOMP: %d\n", + seccomp_status); + return 0; +} +#endif /* HAVE_LIBSECCOMP */ + +#ifdef HAVE_LIBSECCOMP + +#define SC_ALLOW(name) \ + do { \ + int nr = seccomp_syscall_resolve_name (name); \ + if (nr == __NR_SCMP_ERROR) \ + break; \ + if (seccomp_rule_add (ctx, SCMP_ACT_ALLOW, nr, 0) < 0) \ + error (FATAL, errno, "can't add seccomp rule"); \ + } while (0) + +#define SC_ALLOW_ARG_1(name, cmp1) \ + do { \ + int nr = seccomp_syscall_resolve_name (name); \ + if (nr == __NR_SCMP_ERROR) \ + break; \ + if (seccomp_rule_add (ctx, SCMP_ACT_ALLOW, nr, 1, cmp1) < 0) \ + error (FATAL, errno, "can't add seccomp rule"); \ + } while (0) + +#define SC_ALLOW_ARG_2(name, cmp1, cmp2) \ + do { \ + int nr = seccomp_syscall_resolve_name (name); \ + if (nr == __NR_SCMP_ERROR) \ + break; \ + if (seccomp_rule_add (ctx, SCMP_ACT_ALLOW, nr, \ + 2, cmp1, cmp2) < 0) \ + error (FATAL, errno, "can't add seccomp rule"); \ + } while (0) + +/* Create a seccomp filter. + * + * If permissive is true, then the returned filter will allow limited file + * creation (although not making executable files). This obviously + * constitutes less effective confinement, but it's necessary for some + * subprocesses (such as groff) that need the ability to write to temporary + * files. Confining these further requires additional tools that can do + * path-based filtering or similar, such as AppArmor. + */ +static scmp_filter_ctx make_seccomp_filter (int permissive) +{ + scmp_filter_ctx ctx; + mode_t mode_mask = S_ISUID | S_ISGID | S_IXUSR | S_IXGRP | S_IXOTH; + int create_mask = O_CREAT +#ifdef O_TMPFILE + | O_TMPFILE +#endif /* O_TMPFILE */ + ; + + debug ("initialising seccomp filter (permissive: %d)\n", permissive); + ctx = seccomp_init (SCMP_ACT_TRAP); + if (!ctx) + error (FATAL, errno, "can't initialise seccomp filter"); + + /* Allow sibling architectures for x86, since people sometimes mix + * and match architectures there for performance reasons. + */ + switch (seccomp_arch_native ()) { + case SCMP_ARCH_X86: + seccomp_arch_add (ctx, SCMP_ARCH_X86_64); + seccomp_arch_add (ctx, SCMP_ARCH_X32); + break; + case SCMP_ARCH_X86_64: + seccomp_arch_add (ctx, SCMP_ARCH_X86); + seccomp_arch_add (ctx, SCMP_ARCH_X32); + break; + case SCMP_ARCH_X32: + seccomp_arch_add (ctx, SCMP_ARCH_X86); + seccomp_arch_add (ctx, SCMP_ARCH_X86_64); + break; + } + + /* This sandbox is intended to allow operations that might + * reasonably be needed in simple data-transforming pipes: it should + * allow the process to do most reasonable things to itself, to read + * and write data from and to already-open file descriptors, to open + * files in read-only mode, and to fork new processes with the same + * restrictions. (If permissive is true, then it should also allow + * limited file creation; see the header comment above.) + * + * Since I currently know of no library with suitable syscall lists, + * the syscall lists here are taken from + * systemd:src/shared/seccomp-util.c, last updated from commit + * 67eb5b380a7b7eed82f658190bff4ca2d83e9abe (2017-11-30). + */ + + /* systemd: SystemCallFilter=@default */ + SC_ALLOW ("clock_getres"); + SC_ALLOW ("clock_gettime"); + SC_ALLOW ("clock_nanosleep"); + SC_ALLOW ("execve"); + SC_ALLOW ("exit"); + SC_ALLOW ("exit_group"); + SC_ALLOW ("futex"); + SC_ALLOW ("get_robust_list"); + SC_ALLOW ("get_thread_area"); + SC_ALLOW ("getegid"); + SC_ALLOW ("getegid32"); + SC_ALLOW ("geteuid"); + SC_ALLOW ("geteuid32"); + SC_ALLOW ("getgid"); + SC_ALLOW ("getgid32"); + SC_ALLOW ("getgroups"); + SC_ALLOW ("getgroups32"); + SC_ALLOW ("getpgid"); + SC_ALLOW ("getpgrp"); + SC_ALLOW ("getpid"); + SC_ALLOW ("getppid"); + SC_ALLOW ("getresgid"); + SC_ALLOW ("getresgid32"); + SC_ALLOW ("getresuid"); + SC_ALLOW ("getresuid32"); + SC_ALLOW ("getrlimit"); + SC_ALLOW ("getsid"); + SC_ALLOW ("gettid"); + SC_ALLOW ("gettimeofday"); + SC_ALLOW ("getuid"); + SC_ALLOW ("getuid32"); + SC_ALLOW ("membarrier"); + SC_ALLOW ("nanosleep"); + SC_ALLOW ("pause"); + SC_ALLOW ("prlimit64"); + SC_ALLOW ("restart_syscall"); + SC_ALLOW ("rt_sigreturn"); + SC_ALLOW ("sched_yield"); + SC_ALLOW ("set_robust_list"); + SC_ALLOW ("set_thread_area"); + SC_ALLOW ("set_tid_address"); + SC_ALLOW ("set_tls"); + SC_ALLOW ("sigreturn"); + SC_ALLOW ("time"); + SC_ALLOW ("ugetrlimit"); + + /* systemd: SystemCallFilter=@basic-io */ + SC_ALLOW ("_llseek"); + SC_ALLOW ("close"); + SC_ALLOW ("dup"); + SC_ALLOW ("dup2"); + SC_ALLOW ("dup3"); + SC_ALLOW ("lseek"); + SC_ALLOW ("pread64"); + SC_ALLOW ("preadv"); + SC_ALLOW ("preadv2"); + SC_ALLOW ("pwrite64"); + SC_ALLOW ("pwritev"); + SC_ALLOW ("pwritev2"); + SC_ALLOW ("read"); + SC_ALLOW ("readv"); + SC_ALLOW ("write"); + SC_ALLOW ("writev"); + + /* systemd: SystemCallFilter=@file-system (subset) */ + SC_ALLOW ("access"); + SC_ALLOW ("chdir"); + if (permissive) { + SC_ALLOW_ARG_1 ("chmod", + SCMP_A1 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); + SC_ALLOW_ARG_1 ("creat", + SCMP_A1 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); + } + SC_ALLOW ("faccessat"); + SC_ALLOW ("fallocate"); + SC_ALLOW ("fchdir"); + if (permissive) { + SC_ALLOW_ARG_1 ("fchmod", + SCMP_A1 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); + SC_ALLOW_ARG_1 ("fchmodat", + SCMP_A2 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); + } + SC_ALLOW ("fcntl"); + SC_ALLOW ("fcntl64"); + SC_ALLOW ("fstat"); + SC_ALLOW ("fstat64"); + SC_ALLOW ("fstatat64"); + SC_ALLOW ("fstatfs"); + SC_ALLOW ("fstatfs64"); + SC_ALLOW ("ftruncate"); + SC_ALLOW ("ftruncate64"); + if (permissive) SC_ALLOW ("futimesat"); + SC_ALLOW ("getcwd"); + SC_ALLOW ("getdents"); + SC_ALLOW ("getdents64"); + if (permissive) SC_ALLOW ("link"); + if (permissive) SC_ALLOW ("linkat"); + SC_ALLOW ("lstat"); + SC_ALLOW ("lstat64"); + if (permissive) SC_ALLOW ("mkdir"); + if (permissive) SC_ALLOW ("mkdirat"); + SC_ALLOW ("mmap"); + SC_ALLOW ("mmap2"); + SC_ALLOW ("munmap"); + SC_ALLOW ("newfstatat"); + SC_ALLOW ("oldfstat"); + SC_ALLOW ("oldlstat"); + SC_ALLOW ("oldstat"); + if (permissive) { + SC_ALLOW_ARG_2 ("open", + SCMP_A1 (SCMP_CMP_MASKED_EQ, O_CREAT, O_CREAT), + SCMP_A2 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); + SC_ALLOW_ARG_2 ("openat", + SCMP_A2 (SCMP_CMP_MASKED_EQ, O_CREAT, O_CREAT), + SCMP_A3 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); +#ifdef O_TMPFILE + SC_ALLOW_ARG_2 ("open", + SCMP_A1 (SCMP_CMP_MASKED_EQ, + O_TMPFILE, O_TMPFILE), + SCMP_A2 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); + SC_ALLOW_ARG_2 ("openat", + SCMP_A2 (SCMP_CMP_MASKED_EQ, + O_TMPFILE, O_TMPFILE), + SCMP_A3 (SCMP_CMP_MASKED_EQ, mode_mask, 0)); +#endif /* O_TMPFILE */ + SC_ALLOW_ARG_1 ("open", + SCMP_A1 (SCMP_CMP_MASKED_EQ, create_mask, 0)); + SC_ALLOW_ARG_1 ("openat", + SCMP_A2 (SCMP_CMP_MASKED_EQ, create_mask, 0)); + } else { + SC_ALLOW_ARG_1 ("open", + SCMP_A1 (SCMP_CMP_MASKED_EQ, O_ACCMODE, + O_RDONLY)); + SC_ALLOW_ARG_1 ("openat", + SCMP_A2 (SCMP_CMP_MASKED_EQ, O_ACCMODE, + O_RDONLY)); + } + SC_ALLOW ("readlink"); + SC_ALLOW ("readlinkat"); + if (permissive) SC_ALLOW ("rename"); + if (permissive) SC_ALLOW ("renameat"); + if (permissive) SC_ALLOW ("renameat2"); + if (permissive) SC_ALLOW ("rmdir"); + SC_ALLOW ("stat"); + SC_ALLOW ("stat64"); + SC_ALLOW ("statfs"); + SC_ALLOW ("statfs64"); + SC_ALLOW ("statx"); + if (permissive) SC_ALLOW ("symlink"); + if (permissive) SC_ALLOW ("symlinkat"); + if (permissive) SC_ALLOW ("truncate"); + if (permissive) SC_ALLOW ("truncateat"); + if (permissive) SC_ALLOW ("unlink"); + if (permissive) SC_ALLOW ("unlinkat"); + if (permissive) SC_ALLOW ("utime"); + if (permissive) SC_ALLOW ("utimensat"); + if (permissive) SC_ALLOW ("utimes"); + + /* systemd: SystemCallFilter=@io-event */ + SC_ALLOW ("_newselect"); + SC_ALLOW ("epoll_create"); + SC_ALLOW ("epoll_create1"); + SC_ALLOW ("epoll_ctl"); + SC_ALLOW ("epoll_ctl_old"); + SC_ALLOW ("epoll_pwait"); + SC_ALLOW ("epoll_wait"); + SC_ALLOW ("epoll_wait_old"); + SC_ALLOW ("eventfd"); + SC_ALLOW ("eventfd2"); + SC_ALLOW ("poll"); + SC_ALLOW ("ppoll"); + SC_ALLOW ("pselect6"); + SC_ALLOW ("select"); + + /* systemd: SystemCallFilter=@ipc (subset) */ + SC_ALLOW ("pipe"); + SC_ALLOW ("pipe2"); + + /* systemd: SystemCallFilter=@process (subset) */ + SC_ALLOW ("arch_prctl"); + SC_ALLOW ("capget"); + SC_ALLOW ("clone"); + SC_ALLOW ("execveat"); + SC_ALLOW ("fork"); + SC_ALLOW ("getrusage"); + SC_ALLOW ("prctl"); + SC_ALLOW ("vfork"); + SC_ALLOW ("wait4"); + SC_ALLOW ("waitid"); + SC_ALLOW ("waitpid"); + + /* systemd: SystemCallFilter=@signal */ + SC_ALLOW ("rt_sigaction"); + SC_ALLOW ("rt_sigpending"); + SC_ALLOW ("rt_sigprocmask"); + SC_ALLOW ("rt_sigsuspend"); + SC_ALLOW ("rt_sigtimedwait"); + SC_ALLOW ("sigaction"); + SC_ALLOW ("sigaltstack"); + SC_ALLOW ("signal"); + SC_ALLOW ("signalfd"); + SC_ALLOW ("signalfd4"); + SC_ALLOW ("sigpending"); + SC_ALLOW ("sigprocmask"); + SC_ALLOW ("sigsuspend"); + + /* systemd: SystemCallFilter=@sync */ + SC_ALLOW ("fdatasync"); + SC_ALLOW ("fsync"); + SC_ALLOW ("msync"); + SC_ALLOW ("sync"); + SC_ALLOW ("sync_file_range"); + SC_ALLOW ("syncfs"); + + /* Extra syscalls not in any of systemd's sets. */ + SC_ALLOW ("arm_fadvise64_64"); + SC_ALLOW ("arm_sync_file_range"); + SC_ALLOW ("brk"); + SC_ALLOW ("fadvise64"); + SC_ALLOW ("fadvise64_64"); + if (permissive) + SC_ALLOW ("ioctl"); + else { + SC_ALLOW_ARG_1 ("ioctl", SCMP_A1 (SCMP_CMP_EQ, TCGETS)); + SC_ALLOW_ARG_1 ("ioctl", SCMP_A1 (SCMP_CMP_EQ, TIOCGWINSZ)); + } + SC_ALLOW ("madvise"); + SC_ALLOW ("mprotect"); + SC_ALLOW ("mremap"); + SC_ALLOW ("sched_getaffinity"); + SC_ALLOW ("sync_file_range2"); + SC_ALLOW ("sysinfo"); + SC_ALLOW ("uname"); + + /* Allow killing processes and threads. This is unfortunate but + * unavoidable: groff uses kill to explicitly pass on SIGPIPE to its + * child processes, and we can't do any more sophisticated filtering + * in seccomp. + */ + SC_ALLOW ("kill"); + SC_ALLOW ("tgkill"); + + /* Allow some relatively harmless System V shared memory operations. + * These seem to be popular among the sort of program that wants to + * install itself in /etc/ld.so.preload or similar (e.g. antivirus + * programs and VPNs). + */ + SC_ALLOW_ARG_1 ("shmat", SCMP_A2 (SCMP_CMP_EQ, SHM_RDONLY)); + SC_ALLOW_ARG_1 ("shmctl", SCMP_A1 (SCMP_CMP_EQ, IPC_STAT)); + SC_ALLOW ("shmdt"); + SC_ALLOW ("shmget"); + + /* Some antivirus programs use an LD_PRELOAD wrapper that wants to + * talk to a private daemon using a Unix-domain socket. We really + * don't want to allow these syscalls in general, but if such a + * thing is in use we probably have no choice. + * + * snoopy is an execve monitoring tool that may log messages to + * /dev/log. + */ + if (search_ld_preload ("libesets_pac.so") || + search_ld_preload ("libscep_pac.so") || + search_ld_preload ("libsnoopy.so")) { + SC_ALLOW ("connect"); + SC_ALLOW ("recvmsg"); + SC_ALLOW ("sendto"); + SC_ALLOW ("setsockopt"); + SC_ALLOW_ARG_1 ("socket", SCMP_A0 (SCMP_CMP_EQ, AF_UNIX)); + } + /* ESET sends messages to a System V message queue. */ + if (search_ld_preload ("libesets_pac.so") || + search_ld_preload ("libscep_pac.so")) { + SC_ALLOW_ARG_1 ("msgget", SCMP_A1 (SCMP_CMP_EQ, 0)); + SC_ALLOW ("msgsnd"); + } + + return ctx; +} + +#undef SC_ALLOW_ARG_2 +#undef SC_ALLOW_ARG_1 +#undef SC_ALLOW + +#endif /* HAVE_LIBSECCOMP */ + +/* Create a sandbox for processing untrusted data. + * + * This only sets up data structures; the caller must call sandbox_load to + * actually enter the sandbox. + */ +man_sandbox *sandbox_init (void) +{ + man_sandbox *sandbox = XZALLOC (man_sandbox); + +#ifdef HAVE_LIBSECCOMP + sandbox->ctx = make_seccomp_filter (0); + sandbox->permissive_ctx = make_seccomp_filter (1); +#else /* !HAVE_LIBSECCOMP */ + sandbox->dummy = 0; +#endif /* HAVE_LIBSECCOMP */ + + return sandbox; +} + +static void _sandbox_load (man_sandbox *sandbox, int permissive) { +#ifdef HAVE_LIBSECCOMP + if (can_load_seccomp ()) { + scmp_filter_ctx ctx; + + debug ("loading seccomp filter (permissive: %d)\n", + permissive); + if (permissive) + ctx = sandbox->permissive_ctx; + else + ctx = sandbox->ctx; + if (seccomp_load (ctx) < 0) { + if (errno == EINVAL || errno == EFAULT) { + /* The kernel doesn't give us particularly + * fine-grained errors. EINVAL could in + * theory be an invalid BPF program, but + * it's much more likely that the running + * kernel doesn't support seccomp filtering. + * EFAULT normally means a programming + * error, but it could also be returned here + * by some versions of qemu-user + * (https://bugs.launchpad.net/bugs/1726394). + */ + gripe_seccomp_filter_unavailable (); + /* Don't try this again. */ + seccomp_filter_unavailable = 1; + } else + error (FATAL, errno, + "can't load seccomp filter"); + } + } +#endif /* HAVE_LIBSECCOMP */ +} + +/* Enter a sandbox for processing untrusted data. */ +void sandbox_load (void *data) +{ + man_sandbox *sandbox = data; + + _sandbox_load (sandbox, 0); +} + +/* Enter a sandbox for processing untrusted data, allowing limited file + * creation. + */ +void sandbox_load_permissive (void *data) +{ + man_sandbox *sandbox = data; + + _sandbox_load (sandbox, 1); +} + +/* Free a sandbox for processing untrusted data. */ +void sandbox_free (void *data) { + man_sandbox *sandbox = data; + +#ifdef HAVE_LIBSECCOMP + seccomp_release (sandbox->ctx); +#endif /* HAVE_LIBSECCOMP */ + + free (sandbox); +} diff --git a/lib/sandbox.h b/lib/sandbox.h new file mode 100644 index 0000000..a838e0e --- /dev/null +++ b/lib/sandbox.h @@ -0,0 +1,38 @@ +/* + * sandbox.h: Interface to process sandboxing + * + * Copyright (C) 2017 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef MAN_SANDBOX_H +#define MAN_SANDBOX_H + +struct man_sandbox; +typedef struct man_sandbox man_sandbox; + +extern man_sandbox *sandbox_init (void); + +/* These functions take a man_sandbox * argument, but have more generic + * types suitable for use with pipecmd_pre_exec. + */ +extern void sandbox_load (void *data); +extern void sandbox_load_permissive (void *data); +extern void sandbox_free (void *data); + +#endif /* MAN_SANDBOX_H */ diff --git a/lib/security.c b/lib/security.c new file mode 100644 index 0000000..e739d50 --- /dev/null +++ b/lib/security.c @@ -0,0 +1,177 @@ +/* + * security.c: Routines to aid secure uid operations + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2003, 2004, 2007, 2010, 2011 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Mon Aug 8 20:35:30 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include +#include +#include +#include + +#include "gettext.h" +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "error.h" +#include "cleanup.h" +#include "pipeline.h" + +#include "security.h" + +#ifdef MAN_OWNER + + /* + * This is the name of the user that the preformatted man pages belong to. + * If you are running man as a setuid program, you should make sure + * that all of the cat pages and the directories that + * they live in are writeable by this user. + */ + +# include +# include + +# include "idpriv.h" + +uid_t ruid; /* initial real user id */ +uid_t euid; /* initial effective user id */ +uid_t uid; /* current euid */ +gid_t rgid; /* initial real group id */ +gid_t egid; /* initial effective group id */ +gid_t gid; /* current egid */ + +static struct passwd *man_owner; + +/* Keep a count of how many times we've dropped privileges, and only regain + * them if regain_effective_privs() is called an equal number of times. + */ +static int priv_drop_count = 0; + +static void gripe_set_euid (void) +{ + error (FATAL, errno, _("can't set effective uid")); +} + +#endif /* MAN_OWNER */ + +void init_security (void) +{ +#ifdef MAN_OWNER + ruid = getuid (); + uid = euid = geteuid (); + debug ("ruid=%d, euid=%d\n", (int) ruid, (int) euid); + rgid = getgid (); + gid = egid = getegid (); + debug ("rgid=%d, egid=%d\n", (int) rgid, (int) egid); + priv_drop_count = 0; + drop_effective_privs (); +#endif /* MAN_OWNER */ +} + +int running_setuid (void) +{ +#ifdef MAN_OWNER + return ruid != euid; +#else /* !MAN_OWNER */ + return 0; +#endif +} + +#ifdef MAN_OWNER +/* Return a pointer to the password entry structure for MAN_OWNER. This + * structure will be statically stored. + */ +struct passwd *get_man_owner (void) +{ + if (man_owner) + return man_owner; + + man_owner = getpwnam (MAN_OWNER); + if (!man_owner) + error (FAIL, 0, _("the setuid man user \"%s\" does not exist"), + MAN_OWNER); + assert (man_owner); + return man_owner; +} +#endif /* MAN_OWNER */ + +/* + * function to gain user privs by either (a) dropping effective privs + * completely (saved ids) or (b) reversing euid w/ uid. + * Ignore if superuser. + */ +void drop_effective_privs (void) +{ +#ifdef MAN_OWNER + if (uid != ruid) { + debug ("drop_effective_privs()\n"); + if (idpriv_temp_drop ()) + gripe_set_euid (); + uid = ruid; + gid = rgid; + } + + priv_drop_count++; + debug ("++priv_drop_count = %d\n", priv_drop_count); +#endif /* MAN_OWNER */ +} + +/* + * function to (re)gain setuid privs by (a) setting euid from suid or (b) + * (re)reversing uid w/ euid. Ignore if superuser. + */ +void regain_effective_privs (void) +{ +#ifdef MAN_OWNER + if (priv_drop_count) { + priv_drop_count--; + debug ("--priv_drop_count = %d\n", priv_drop_count); + if (priv_drop_count) + return; + } + + if (uid != euid) { + debug ("regain_effective_privs()\n"); + if (idpriv_temp_restore ()) + gripe_set_euid (); + + uid = euid; + gid = egid; + } +#endif /* MAN_OWNER */ +} + +/* Pipeline command pre-exec hook to permanently drop privileges. */ +void drop_privs (void *data ATTRIBUTE_UNUSED) +{ +#ifdef MAN_OWNER + if (idpriv_drop ()) + gripe_set_euid (); +#endif /* MAN_OWNER */ +} diff --git a/lib/security.h b/lib/security.h new file mode 100644 index 0000000..63ef533 --- /dev/null +++ b/lib/security.h @@ -0,0 +1,35 @@ +/* + * security.h: Interface to secure uid operations + * + * Copyright (C) 1990, 1991 John W. Eaton. + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002, 2004, 2008, 2010, 2011 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include + +/* security.c */ +extern void drop_effective_privs (void); +extern void regain_effective_privs (void); +extern void drop_privs (void *data); +extern void init_security (void); +extern int running_setuid (void); +#ifdef MAN_OWNER +extern struct passwd *get_man_owner (void); +#endif /* MAN_OWNER */ diff --git a/lib/tempfile.c b/lib/tempfile.c new file mode 100644 index 0000000..91ee0fb --- /dev/null +++ b/lib/tempfile.c @@ -0,0 +1,79 @@ +/* tempfile.c: handle temporary directory creation (formerly also temporary + * files but this is no longer used). + * + * Copyright (C) 2001, 2003, 2007, 2009, 2011 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include + +#include "xvasprintf.h" + +#include "manconfig.h" + +static const char *path_search (void) +{ + const char *dir = NULL; + + if (getuid () == geteuid () && getgid () == getegid ()) { + dir = getenv ("TMPDIR"); + if (!dir || !CAN_ACCESS (dir, W_OK)) + dir = NULL; + if (!dir) { + dir = getenv ("TMP"); + if (!dir || !CAN_ACCESS (dir, W_OK)) + dir = NULL; + } + } +#ifdef P_tmpdir + if (!dir) { + dir = P_tmpdir; + if (!dir || !CAN_ACCESS (dir, W_OK)) + dir = NULL; + } +#endif + if (!dir) { + dir = "/tmp"; + if (!CAN_ACCESS (dir, W_OK)) + dir = NULL; + } + + return dir; +} + +/* Get a sane temporary directory, looking in $TMPDIR, P_tmpdir, and finally + * /tmp. + */ +char *create_tempdir (const char *template) +{ + const char *dir = path_search (); + char *created_dirname; + + if (!dir) + return NULL; + created_dirname = xasprintf ("%s/%sXXXXXX", dir, template); + if (!mkdtemp (created_dirname)) + return NULL; + return created_dirname; +} diff --git a/lib/util.c b/lib/util.c new file mode 100644 index 0000000..3f4b10f --- /dev/null +++ b/lib/util.c @@ -0,0 +1,267 @@ +/* + * util.c + * + * Copyright (C) 1990, 1991 John W. Eaton. + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002, 2004, 2007, 2008, 2010 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * John W. Eaton + * jwe@che.utexas.edu + * Department of Chemical Engineering + * The University of Texas at Austin + * Austin, Texas 78712 + * + * Wed May 4 15:44:47 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk): slight + * changes to all routines, mainly cosmetic. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "stat-time.h" +#include "timespec.h" +#include "xvasprintf.h" + +#include "gettext.h" + +#include "manconfig.h" + +#include "error.h" +#include "pipeline.h" + +/* + * Does file a have a different timestamp to file b? + * + * case: + * + * a is man_page, b is cat_page + * + * a and b have different times returns 1/3 (ret & 1) == 1 + * a and b have same times returns 0/2 (!(ret & 1)) == 1 + * a is zero in length returns + 2 (for Wilf. and his stray cats) + * b is zero in length returns + 4 + * stat on a fails returns -1 + * stat on b fails returns -2 + * stat on a and b fails returns -3 + */ +int is_changed (const char *fa, const char *fb) +{ + struct stat fa_sb; + struct stat fb_sb; + int fa_stat; + int fb_stat; + int status = 0; + + debug ("is_changed: a=%s, b=%s", fa, fb); + + fa_stat = stat (fa, &fa_sb); + if (fa_stat != 0) + status = 1; + + fb_stat = stat (fb, &fb_sb); + if (fb_stat != 0) + status |= 2; + + if (status != 0) { + debug (" (%d)\n", -status); + return -status; + } + + if (fa_sb.st_size == 0) + status |= 2; + + if (fb_sb.st_size == 0) + status |= 4; + + status |= (timespec_cmp (get_stat_mtime (&fa_sb), + get_stat_mtime (&fb_sb)) != 0); + + debug (" (%d)\n", status); + return status; +} + +/* + * Is path a directory? + */ +int is_directory (const char *path) +{ + struct stat sb; + int status; + + status = stat (path, &sb); + + if (status != 0) + return status; + + return ((sb.st_mode & S_IFDIR) != 0); +} + +/* Escape dangerous metacharacters before dumping into a shell command. */ +char *escape_shell (const char *unesc) +{ + char *esc, *escp; + const char *unescp; + + if (!unesc) + return NULL; + + escp = esc = xmalloc (strlen (unesc) * 2 + 1); + for (unescp = unesc; *unescp; unescp++) + if ((*unescp >= '0' && *unescp <= '9') || + (*unescp >= 'A' && *unescp <= 'Z') || + (*unescp >= 'a' && *unescp <= 'z') || + strchr (",-./:@_", *unescp)) + *escp++ = *unescp; + else { + *escp++ = '\\'; + *escp++ = *unescp; + } + *escp = 0; + return esc; +} + +/* Remove a directory and all files in it. Only recurse beyond that if + * RECURSE is set. + */ +int remove_directory (const char *directory, int recurse) +{ + DIR *handle = opendir (directory); + struct dirent *entry; + + if (!handle) + return -1; + while ((entry = readdir (handle)) != NULL) { + struct stat st; + char *path; + + if (STREQ (entry->d_name, ".") || STREQ (entry->d_name, "..")) + continue; + path = xasprintf ("%s/%s", directory, entry->d_name); + if (stat (path, &st) == -1) { + free (path); + closedir (handle); + return -1; + } + if (recurse && S_ISDIR (st.st_mode)) { + if (remove_directory (path, recurse) == -1) { + free (path); + closedir (handle); + return -1; + } + } else if (S_ISREG (st.st_mode)) { + if (unlink (path) == -1) { + free (path); + closedir (handle); + return -1; + } + } + free (path); + } + closedir (handle); + + if (rmdir (directory) == -1) + return -1; + return 0; +} + +/* Returns an allocated copy of s, with leading and trailing spaces + * removed. + */ +char *trim_spaces (const char *s) +{ + int length; + while (*s == ' ') + ++s; + length = strlen (s); + while (length && s[length - 1] == ' ') + --length; + return xstrndup (s, length); +} + +char *lang_dir (const char *filename) +{ + char *ld; /* the lang dir: point to static data */ + const char *fm; /* the first "/man/" dir */ + const char *sm; /* the second "/man?/" dir */ + + ld = xstrdup (""); + if (!filename) + return ld; + + /* Check whether filename is in a man page hierarchy. */ + if (STRNEQ (filename, "man/", 4)) + fm = filename; + else { + fm = strstr (filename, "/man/"); + if (fm) + ++fm; + } + if (!fm) + return ld; + sm = strstr (fm + 2, "/man"); + if (!sm) + return ld; + if (sm[5] != '/') + return ld; + if (!strchr ("123456789lno", sm[4])) + return ld; + + /* If there's no lang dir element, it's an English man page. */ + if (sm == fm + 3) { + free (ld); + return xstrdup ("C"); + } + + /* found a lang dir */ + fm += 4; + sm = strchr (fm, '/'); + if (!sm) + return ld; + free (ld); + ld = xstrndup (fm, sm - fm); + debug ("found lang dir element %s\n", ld); + return ld; +} + +void init_locale (void) +{ + char *locale = setlocale (LC_ALL, ""); + if (!locale && + !getenv ("MAN_NO_LOCALE_WARNING") && + !getenv ("DPKG_RUNNING_VERSION")) + /* Obviously can't translate this. */ + error (0, 0, "can't set the locale; make sure $LC_* and $LANG " + "are correct"); + setenv ("MAN_NO_LOCALE_WARNING", "1", 1); +#ifdef ENABLE_NLS + bindtextdomain (PACKAGE, LOCALEDIR); + bindtextdomain (PACKAGE "-gnulib", LOCALEDIR); + textdomain (PACKAGE); +#endif /* ENABLE_NLS */ +} diff --git a/lib/wordfnmatch.c b/lib/wordfnmatch.c new file mode 100644 index 0000000..0ec2650 --- /dev/null +++ b/lib/wordfnmatch.c @@ -0,0 +1,64 @@ +/* + * wordfnmatch.c: fnmatch on word boundaries + * + * Copyright (C) 2001, 2003, 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include +#include + +#include "fnmatch.h" + +#include "manconfig.h" + +#include "lower.h" +#include "wordfnmatch.h" + +/* TODO: How on earth do we allow multiple-word matches without + * reimplementing fnmatch()? + */ +int word_fnmatch (const char *lowpattern, const char *string) +{ + char *lowstring = lower (string); + char *begin = lowstring, *p; + + for (p = lowstring; *p; p++) { + if (CTYPE (islower, *p) || *p == '_') + continue; + + /* Check for multiple non-word characters in a row. */ + if (p <= begin + 1) + begin++; + else { + *p = '\0'; + if (fnmatch (lowpattern, begin, 0) == 0) { + free (lowstring); + return 1; + } + begin = p + 1; + } + } + + free (lowstring); + return 0; +} diff --git a/lib/wordfnmatch.h b/lib/wordfnmatch.h new file mode 100644 index 0000000..0fc29f0 --- /dev/null +++ b/lib/wordfnmatch.h @@ -0,0 +1,23 @@ +/* + * wordfnmatch.h: interface to fnmatch on word boundaries + * + * Copyright (C) 2001, 2003, 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +int word_fnmatch (const char *lowpattern, const char *string); diff --git a/lib/xchown.c b/lib/xchown.c new file mode 100644 index 0000000..7f284fa --- /dev/null +++ b/lib/xchown.c @@ -0,0 +1,49 @@ +/* + * xchown.c: chown replacement function + * + * Copyright (C) 2016 Mihail Konev. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include + +#include "gettext.h" +#define _(String) gettext (String) + +#include "error.h" +#include "manconfig.h" + +void xchown (const char *path, uid_t owner, gid_t group) +{ + int rc; + rc = chown (path, owner, group); + if (rc) + error (FATAL, 0, _("can't chown %s"), path); +} + +#ifdef HAVE_LCHOWN +void xlchown (const char *path, uid_t owner, gid_t group) +{ + int rc; + rc = lchown (path, owner, group); + if (rc) + error (FATAL, 0, _("can't chown %s"), path); +} +#endif diff --git a/lib/xchown.h b/lib/xchown.h new file mode 100644 index 0000000..8a035b2 --- /dev/null +++ b/lib/xchown.h @@ -0,0 +1,29 @@ +/* + * xchown.h: chown replacement function + * + * Copyright (C) 2016 Mihail Konev. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * */ + +#ifndef _XCHOWN_H +#define _XCHOWN_H + +void xchown (const char *path, uid_t owner, gid_t group); +#ifdef HAVE_LCHOWN +void xlchown (const char *path, uid_t owner, gid_t group); +#endif /* HAVE_LCHOWN */ + +#endif /* _XCHOWN_H */ diff --git a/lib/xregcomp.c b/lib/xregcomp.c new file mode 100644 index 0000000..cd6ed9d --- /dev/null +++ b/lib/xregcomp.c @@ -0,0 +1,49 @@ +/* + * xregcomp.c: regcomp with error checking + * + * Copyright (C) 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include "regex.h" + +#include "gettext.h" +#include +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "error.h" +#include "xregcomp.h" + +void xregcomp (regex_t *preg, const char *regex, int cflags) +{ + int err = regcomp (preg, regex, cflags); + if (err) { + size_t errstrsize; + char *errstr; + errstrsize = regerror (err, preg, NULL, 0); + errstr = xmalloc (errstrsize); + regerror (err, preg, errstr, errstrsize); + error (FATAL, 0, _("fatal: regex `%s': %s"), regex, errstr); + } +} diff --git a/lib/xregcomp.h b/lib/xregcomp.h new file mode 100644 index 0000000..ca34b44 --- /dev/null +++ b/lib/xregcomp.h @@ -0,0 +1,25 @@ +/* + * xregcomp.h: interface to regcomp with error checking + * + * Copyright (C) 2008 Colin Watson. + * + * This file is part of man-db. + * + * man-db is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * man-db is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with man-db; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "regex.h" + +void xregcomp (regex_t *preg, const char *regex, int cflags); -- cgit v1.2.3