diff options
Diffstat (limited to 'libdb')
| -rw-r--r-- | libdb/Makefile.am | 47 | ||||
| -rw-r--r-- | libdb/Makefile.in | 1867 | ||||
| -rw-r--r-- | libdb/README | 7 | ||||
| -rw-r--r-- | libdb/db_btree.c | 272 | ||||
| -rw-r--r-- | libdb/db_delete.c | 148 | ||||
| -rw-r--r-- | libdb/db_gdbm.c | 289 | ||||
| -rw-r--r-- | libdb/db_lookup.c | 493 | ||||
| -rw-r--r-- | libdb/db_ndbm.c | 128 | ||||
| -rw-r--r-- | libdb/db_storage.h | 104 | ||||
| -rw-r--r-- | libdb/db_store.c | 369 | ||||
| -rw-r--r-- | libdb/db_ver.c | 83 | ||||
| -rw-r--r-- | libdb/mydbm.h | 189 |
12 files changed, 3996 insertions, 0 deletions
diff --git a/libdb/Makefile.am b/libdb/Makefile.am new file mode 100644 index 0000000..0015b84 --- /dev/null +++ b/libdb/Makefile.am @@ -0,0 +1,47 @@ +## Process this file with automake to produce Makefile.in +## +## Copyright (C) 1994, 1995 Graeme Wilford. +## Copyright (C) 2001, 2003, 2005, 2006, 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 + +pkglib_LTLIBRARIES = libmandb.la +dist_noinst_DATA = README + +AM_CFLAGS = $(WARN_CFLAGS) + +libmandb_la_CPPFLAGS = \ + -I$(top_builddir)/include \ + -I$(top_srcdir)/gl/lib \ + -I$(top_builddir)/gl/lib \ + -I$(top_srcdir)/lib + +libmandb_la_SOURCES = \ + db_btree.c \ + db_delete.c \ + db_gdbm.c \ + db_lookup.c \ + db_ndbm.c \ + db_storage.h \ + db_store.c \ + db_ver.c \ + mydbm.h + +libmandb_la_LIBADD = ../lib/libman.la $(DBLIBS) + +libmandb_la_LDFLAGS = \ + -avoid-version -release $(VERSION) -rpath $(pkglibdir) -no-undefined diff --git a/libdb/Makefile.in b/libdb/Makefile.in new file mode 100644 index 0000000..6a43a77 --- /dev/null +++ b/libdb/Makefile.in @@ -0,0 +1,1867 @@ +# Makefile.in generated by automake 1.16.1 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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 = 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routines for man. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2002 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; 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 */ + +/* below this line are routines only useful for the BTREE interface */ +#ifdef BTREE + +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#include <sys/file.h> /* for flock() */ +#include <sys/types.h> /* for open() */ +#include <sys/stat.h> + +#if HAVE_FCNTL_H +# include <fcntl.h> +#endif + +#include <unistd.h> + +#include "stat-time.h" +#include "timespec.h" + +#include "manconfig.h" + +#include "error.h" +#include "hashtable.h" + +#include "mydbm.h" +#include "db_storage.h" + +struct hashtable *loop_check_hash; + +/* the Berkeley database libraries do nothing to arbitrate between concurrent + database accesses, so we do a simple flock(). If the db is opened in + anything but O_RDONLY mode, an exclusive lock is enabled. Otherwise, the + lock is shared. A file cannot have both locks at once, and the non + blocking method is used ": Try again". This adopts GNU dbm's approach. */ + +/* release the lock and close the database */ +int btree_close (DB *db) +{ + (void) flock ((db->fd) (db), LOCK_UN); + return (db->close) (db); +} + +/* open a btree type database, with file locking. */ +DB *btree_flopen (char *filename, int flags, int mode) +{ + DB *db; + BTREEINFO b; + int lock_op; + int lock_failed; + + b.flags = 0; /* do not allow any duplicate keys */ + + b.cachesize = 0; /* default size */ + b.maxkeypage = 0; /* default */ + b.minkeypage = 0; /* default */ + b.psize = 0; /* default page size (2048?) */ + b.compare = NULL; /* builtin compare() function */ + b.prefix = NULL; /* builtin function */ + b.lorder = 0; /* byte order of host */ + + if (flags & ~O_RDONLY) { + /* flags includes O_RDWR or O_WRONLY, need an exclusive lock */ + lock_op = LOCK_EX | LOCK_NB; + } else { + lock_op = LOCK_SH | LOCK_NB; + } + + if (!(flags & O_CREAT)) { + /* Berkeley DB thinks that a zero-length file means that + * somebody else is writing it, and sleeps for a few + * seconds to give the writer a chance. All very well, but + * the common case is that the database is just zero-length + * because mandb was interrupted or ran out of disk space or + * something like that - so we check for this case by hand + * and ignore the database if it's zero-length. + */ + struct stat iszero; + if (stat (filename, &iszero) < 0) + return NULL; + if (iszero.st_size == 0) { + errno = EINVAL; + return NULL; + } + } + + if (flags & O_TRUNC) { + /* opening the db is destructive, need to lock first */ + int fd; + + db = NULL; + lock_failed = 1; + fd = open (filename, flags & ~O_TRUNC, mode); + if (fd != -1) { + if (!(lock_failed = flock (fd, lock_op))) + db = dbopen (filename, flags, mode, + DB_BTREE, &b); + close (fd); + } + } else { + db = dbopen (filename, flags, mode, DB_BTREE, &b); + if (db) + lock_failed = flock ((db->fd) (db), lock_op); + } + + if (!db) + return NULL; + + if (lock_failed) { + gripe_lock (filename); + btree_close (db); + return NULL; + } + + return db; +} + +/* do a replace when we have the duplicate flag set on the database - + we must do a del and insert, as a direct insert will not wipe out the + old entry */ +int btree_replace (DB *db, datum key, datum cont) +{ + return (db->put) (db, (DBT *) &key, (DBT *) &cont, 0); +} + +int btree_insert (DB *db, datum key, datum cont) +{ + return (db->put) (db, (DBT *) &key, (DBT *) &cont, R_NOOVERWRITE); +} + +/* generic fetch routine for the btree database */ +datum btree_fetch (DB *db, datum key) +{ + datum data; + + memset (&data, 0, sizeof data); + + if ((db->get) (db, (DBT *) &key, (DBT *) &data, 0)) { + memset (&data, 0, sizeof data); + return data; + } + + return copy_datum (data); +} + +/* return 1 if the key exists, 0 otherwise */ +int btree_exists (DB *db, datum key) +{ + datum data; + return ((db->get) (db, (DBT *) &key, (DBT *) &data, 0) ? 0 : 1); +} + +/* initiate a sequential access */ +static datum btree_findkey (DB *db, u_int flags) +{ + datum key, data; + + memset (&key, 0, sizeof key); + memset (&data, 0, sizeof data); + + if (flags == R_FIRST) { + if (loop_check_hash) { + hashtable_free (loop_check_hash); + loop_check_hash = NULL; + } + } + if (!loop_check_hash) + loop_check_hash = hashtable_create (&free); + + if (((db->seq) (db, (DBT *) &key, (DBT *) &data, flags))) { + memset (&key, 0, sizeof key); + return key; + } + + if (hashtable_lookup (loop_check_hash, + MYDBM_DPTR (key), MYDBM_DSIZE (key))) { + /* We've seen this key already, which is broken. Return NULL + * so the caller doesn't go round in circles. + */ + debug ("Corrupt database! Already seen %*s. " + "Attempting to recover ...\n", + (int) MYDBM_DSIZE (key), MYDBM_DPTR (key)); + memset (&key, 0, sizeof key); + return key; + } + + hashtable_install (loop_check_hash, + MYDBM_DPTR (key), MYDBM_DSIZE (key), NULL); + + return copy_datum (key); +} + +/* return the first key in the db */ +datum btree_firstkey (DB *db) +{ + return btree_findkey (db, R_FIRST); +} + +/* return the next key in the db. NB. This routine only works if the cursor + has been previously set by btree_firstkey() since it was last opened. So + if we close/reopen a db mid search, we have to manually set up the + cursor again. */ +datum btree_nextkey (DB *db) +{ + return btree_findkey (db, R_NEXT); +} + +/* compound nextkey routine, initialising key and content */ +int btree_nextkeydata (DB *db, datum *key, datum *cont) +{ + int status; + + if ((status = (db->seq) (db, (DBT *) key, (DBT *) cont, R_NEXT)) != 0) + return status; + + *key = copy_datum (*key); + *cont = copy_datum (*cont); + + return 0; +} + +struct timespec btree_get_time (DB *db) +{ + struct stat st; + + if (fstat ((db->fd) (db), &st) < 0) { + struct timespec t; + t.tv_sec = -1; + t.tv_nsec = -1; + return t; + } + return get_stat_mtime (&st); +} + +void btree_set_time (DB *db, const struct timespec time) +{ + struct timespec times[2]; + + times[0] = time; + times[1] = time; + futimens ((db->fd) (db), times); +} + +#endif /* BTREE */ diff --git a/libdb/db_delete.c b/libdb/db_delete.c new file mode 100644 index 0000000..4ac6401 --- /dev/null +++ b/libdb/db_delete.c @@ -0,0 +1,148 @@ +/* + * db_delete.c: dbdelete(), database delete routine. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002 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; 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 <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include "gettext.h" +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "error.h" + +#include "mydbm.h" +#include "db_storage.h" + +/* Delete an entry for a page. + Again, 3 possibilities: + + 1) page is singular reference, just delete it :) + 2) page has 2+ companions. Delete page and alter multi entry to not + point to it anymore. + 3) page has 1 companion. Could do as (2), but we'd waste an entry in + the db. Should delete page, extract friend and reinsert as singular, + overwriting the old multi entry. +*/ + +#define NO_ENTRY 1; + +int dbdelete (MYDBM_FILE dbf, const char *name, struct mandata *info) +{ + datum key, cont; + + memset (&key, 0, sizeof key); + memset (&cont, 0, sizeof cont); + + /* get entry for info */ + + debug ("Attempting delete of %s(%s) entry.\n", name, info->ext); + + MYDBM_SET (key, name_to_key (name)); + cont = MYDBM_FETCH (dbf, key); + + if (!MYDBM_DPTR (cont)) { /* 0 entries */ + MYDBM_FREE_DPTR (key); + return NO_ENTRY; + } else if (*MYDBM_DPTR (cont) != '\t') { /* 1 entry */ + MYDBM_DELETE (dbf, key); + MYDBM_FREE_DPTR (cont); + } else { /* 2+ entries */ + char **names, **ext; + char *multi_content = NULL; + datum multi_key; + int refs, i, j; + + /* Extract all of the extensions associated with + this key */ + + refs = list_extensions (MYDBM_DPTR (cont) + 1, &names, &ext); + + for (i = 0; i < refs; ++i) + if (STREQ (names[i], name) && + STREQ (ext[i], info->ext)) + break; + + if (i >= refs) { + free (names); + free (ext); + MYDBM_FREE_DPTR (cont); + MYDBM_FREE_DPTR (key); + return NO_ENTRY; + } + + multi_key = make_multi_key (names[i], ext[i]); + if (!MYDBM_EXISTS (dbf, multi_key)) { + error (0, 0, + _( "multi key %s does not exist"), + MYDBM_DPTR (multi_key)); + gripe_corrupt_data (); + } + MYDBM_DELETE (dbf, multi_key); + MYDBM_FREE_DPTR (multi_key); + + /* refs *may* be 1 if all manual pages with this name + have been deleted. In this case, we'll have to remove + the key too */ + + if (refs == 1) { + free (names); + free (ext); + MYDBM_FREE_DPTR (cont); + MYDBM_DELETE (dbf, key); + MYDBM_FREE_DPTR (key); + return 0; + } + + /* create our new multi content */ + for (j = 0; j < refs; ++j) + if (i != j) + multi_content = appendstr (multi_content, + "\t", names[j], + "\t", ext[j], + (void *) 0); + + MYDBM_FREE_DPTR (cont); + + /* if refs = 2 do something else. Doesn't really matter as + the gdbm db file does not shrink any after a deletion + anyway */ + + MYDBM_SET (cont, multi_content); + + if (MYDBM_REPLACE (dbf, key, cont)) + gripe_replace_key (MYDBM_DPTR (key)); + + free (names); + free (ext); + } + + MYDBM_FREE_DPTR (key); + return 0; +} diff --git a/libdb/db_gdbm.c b/libdb/db_gdbm.c new file mode 100644 index 0000000..f3aaa94 --- /dev/null +++ b/libdb/db_gdbm.c @@ -0,0 +1,289 @@ +/* + * db_gdbm.c: low level gdbm interface routines for man. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * + * 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; 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 */ + +#ifdef GDBM + +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <setjmp.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> + +#include "stat-time.h" +#include "timespec.h" + +#include "manconfig.h" + +#include "hashtable.h" +#include "cleanup.h" + +#include "mydbm.h" + +static struct hashtable *parent_sortkey_hash; + +struct sortkey { + datum key; + struct sortkey *next; +}; + +/* setjmp/longjmp handling to defend against _gdbm_fatal exiting under our + * feet. Not thread-safe, but there is no plan for man-db to ever use + * threads. + */ +static jmp_buf open_env; +static int opening; + +/* Mimic _gdbm_fatal's error output, but handle errors during open more + * gracefully than exiting. + */ +static void trap_error (const char *val) +{ + if (opening) { + debug ("gdbm error: %s\n", val); + longjmp (open_env, 1); + } else + fprintf (stderr, "gdbm fatal: %s\n", val); +} + +man_gdbm_wrapper man_gdbm_open_wrapper (const char *name, int flags) +{ + man_gdbm_wrapper wrap; + GDBM_FILE file; + datum key, content; + + opening = 1; + if (setjmp (open_env)) + return NULL; + file = gdbm_open ((char *) name, BLK_SIZE, flags, DBMODE, trap_error); + if (!file) + return NULL; + + wrap = xmalloc (sizeof *wrap); + wrap->name = xstrdup (name); + wrap->file = file; + + if ((flags & ~GDBM_FAST) != GDBM_NEWDB) { + /* While the setjmp/longjmp guard is in effect, make sure we + * can read from the database at all. + */ + memset (&key, 0, sizeof key); + MYDBM_SET (key, xstrdup (VER_KEY)); + content = MYDBM_FETCH (wrap, key); + MYDBM_FREE_DPTR (key); + MYDBM_FREE_DPTR (content); + } + + opening = 0; + + return wrap; +} + +static void parent_sortkey_hashtable_free (void *defn) +{ + /* Automatically free child hashtables on removal. */ + hashtable_free ((struct hashtable *) defn); +} + +static void sortkey_hashtable_free (void *defn) +{ + struct sortkey *key = (struct sortkey *) defn; + MYDBM_FREE_DPTR (key->key); + free (key); +} + +static int sortkey_compare (const void *a, const void *b) +{ + const struct sortkey **left = (const struct sortkey **) a; + const struct sortkey **right = (const struct sortkey **) b; + int cmp; + size_t minsize; + + /* Sentinel NULL elements sort to the end. */ + if (!MYDBM_DPTR ((*left)->key)) + return 1; + else if (!MYDBM_DPTR ((*right)->key)) + return -1; + + if (MYDBM_DSIZE ((*left)->key) < MYDBM_DSIZE ((*right)->key)) + minsize = MYDBM_DSIZE ((*left)->key); + else + minsize = MYDBM_DSIZE ((*right)->key); + cmp = strncmp (MYDBM_DPTR ((*left)->key), MYDBM_DPTR ((*right)->key), + minsize); + if (cmp) + return cmp; + else if (MYDBM_DSIZE ((*left)->key) < MYDBM_DSIZE ((*right)->key)) + return 1; + else if (MYDBM_DSIZE ((*left)->key) > MYDBM_DSIZE ((*right)->key)) + return -1; + else + return 0; +} + +static datum empty_datum = { NULL, 0 }; + +/* We keep a hashtable of filenames to sorted lists of keys. Each list is + * stored both with links from each element to the next and in a hashtable, + * so that both sequential access and random access are quick. This is + * necessary for a reasonable ordered implementation of nextkey. + */ +datum man_gdbm_firstkey (man_gdbm_wrapper wrap) +{ + struct hashtable *sortkey_hash; + struct sortkey **keys, *firstkey; + int numkeys = 0, maxkeys = 256; + int i; + + /* Build the raw list of keys and sort it. */ + keys = xnmalloc (maxkeys, sizeof *keys); + keys[0] = xmalloc (sizeof **keys); + keys[0]->key = gdbm_firstkey (wrap->file); + while (MYDBM_DPTR (keys[numkeys]->key)) { + if (++numkeys >= maxkeys) { + maxkeys *= 2; + keys = xnrealloc (keys, maxkeys, sizeof *keys); + } + keys[numkeys] = xmalloc (sizeof **keys); + keys[numkeys]->key = + gdbm_nextkey (wrap->file, keys[numkeys - 1]->key); + } + free (keys[numkeys]); + keys[numkeys] = NULL; /* simplifies the empty case */ + qsort (keys, numkeys, sizeof *keys, &sortkey_compare); + + /* Link the elements together and insert them into a hash. */ + sortkey_hash = hashtable_create (&sortkey_hashtable_free); + for (i = 0; i < numkeys; ++i) { + if (i < numkeys - 1) + keys[i]->next = keys[i + 1]; + else + keys[i]->next = NULL; + hashtable_install (sortkey_hash, + MYDBM_DPTR (keys[i]->key), + MYDBM_DSIZE (keys[i]->key), + keys[i]); + } + firstkey = keys[0]; + free (keys); /* element memory now owned by hashtable */ + + if (!parent_sortkey_hash) { + parent_sortkey_hash = hashtable_create + (&parent_sortkey_hashtable_free); + push_cleanup ((cleanup_fun) hashtable_free, + parent_sortkey_hash, 0); + } + + /* Remember this structure for use by nextkey. */ + hashtable_install (parent_sortkey_hash, + wrap->name, strlen (wrap->name), sortkey_hash); + + if (firstkey) + return copy_datum (firstkey->key); + else + return empty_datum; /* dptr is NULL, so no copy needed */ +} + +datum man_gdbm_nextkey (man_gdbm_wrapper wrap, datum key) +{ + struct hashtable *sortkey_hash; + struct sortkey *sortkey; + + if (!parent_sortkey_hash) + return empty_datum; + sortkey_hash = hashtable_lookup (parent_sortkey_hash, + wrap->name, strlen (wrap->name)); + if (!sortkey_hash) + return empty_datum; + + sortkey = hashtable_lookup (sortkey_hash, + MYDBM_DPTR (key), MYDBM_DSIZE (key)); + if (!sortkey || !sortkey->next) + return empty_datum; + + return copy_datum (sortkey->next->key); +} + +struct timespec man_gdbm_get_time (man_gdbm_wrapper wrap) +{ + struct stat st; + + if (fstat (gdbm_fdesc (wrap->file), &st) < 0) { + struct timespec t; + t.tv_sec = -1; + t.tv_nsec = -1; + return t; + } + return get_stat_mtime (&st); +} + +void man_gdbm_set_time (man_gdbm_wrapper wrap, const struct timespec time) +{ + struct timespec times[2]; + + times[0] = time; + times[1] = time; + futimens (gdbm_fdesc (wrap->file), times); +} + +void man_gdbm_close (man_gdbm_wrapper wrap) +{ + if (!wrap) + return; + + if (parent_sortkey_hash) { + struct hashtable *sortkey_hash = + hashtable_lookup (parent_sortkey_hash, + wrap->name, strlen (wrap->name)); + if (sortkey_hash) + hashtable_remove (parent_sortkey_hash, + wrap->name, strlen (wrap->name)); + } + + free (wrap->name); + gdbm_close (wrap->file); + free (wrap); +} + +#ifndef HAVE_GDBM_EXISTS + +int gdbm_exists (GDBM_FILE file, datum key) +{ + char *memory; + + memory = MYDBM_DPTR (gdbm_fetch (file, key)); + if (memory) { + free (memory); + return 1; + } + + return 0; +} + +#endif /* !HAVE_GDBM_EXISTS */ + +#endif /* GDBM */ diff --git a/libdb/db_lookup.c b/libdb/db_lookup.c new file mode 100644 index 0000000..140a505 --- /dev/null +++ b/libdb/db_lookup.c @@ -0,0 +1,493 @@ +/* + * db_lookup.c: low level database interface routines for man. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008, 2009, 2012 + * 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; 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 <stdio.h> +#include <errno.h> +#include <ctype.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include "fnmatch.h" +#include "regex.h" +#include "xvasprintf.h" + +#include "gettext.h" +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "error.h" +#include "lower.h" +#include "wordfnmatch.h" +#include "xregcomp.h" + +#include "mydbm.h" +#include "db_storage.h" + +/* If using ndbm or BTREE, copy the static storage before doing anything + * interesting with it. If using gdbm, firstkey and nextkey need to copy the + * storage because our ordered wrappers keep an effectively static copy. + */ +datum copy_datum (datum dat) +{ + if (MYDBM_DPTR (dat)) { + MYDBM_SET_DPTR (dat, memcpy (xmalloc (MYDBM_DSIZE (dat) + 1), + MYDBM_DPTR (dat), + MYDBM_DSIZE (dat))); + MYDBM_DPTR (dat)[MYDBM_DSIZE (dat)] = '\0'; + } + return dat; +} + +/* gdbm does locking itself. */ +#if defined(NDBM) || defined(BTREE) +void gripe_lock (char *filename) +{ + error (0, errno, _("can't lock index cache %s"), filename); +} +#endif /* NDBM || BTREE */ + +/* issue fatal message, then exit */ +void gripe_corrupt_data (void) +{ + error (FATAL, 0, _("index cache %s corrupt"), database); +} + +/* deal with situation where we cannot replace a key */ +void gripe_replace_key (const char *data) +{ + error (0, 0, _("cannot replace key %s"), data); + gripe_corrupt_data (); +} + +static char *copy_if_set (const char *str) +{ + if (STREQ (str, "-")) + return NULL; + else + return xstrdup (str); +} + +const char *dash_if_unset (const char *str) +{ + if (str) + return str; + else + return "-"; +} + +/* Just print out what would be stored in the db */ +void dbprintf (const struct mandata *info) +{ + debug ("name: %s\n" + "sec. ext: %s\n" + "section: %s\n" + "comp. ext: %s\n" + "id: %c\n" + "mtime: %ld.%09ld\n" + "pointer: %s\n" + "filter: %s\n" + "whatis: %s\n\n", + dash_if_unset (info->name), + info->ext, info->sec, info->comp, + info->id, (long) info->mtime.tv_sec, (long) info->mtime.tv_nsec, + info->pointer, info->filter, info->whatis); +} + +/* Form a multi-style key from page and extension info. The page should + * *not* be name_to_key()'d - that should only happen to the parent. + */ +datum make_multi_key (const char *page, const char *ext) +{ + datum key; + + memset (&key, 0, sizeof key); + MYDBM_SET (key, xasprintf ("%s\t%s", page, ext)); + return key; +} + +/* Free allocated elements of a mandata structure, but not the structure + * itself. + */ +void free_mandata_elements (struct mandata *pinfo) +{ + if (pinfo->addr) + /* TODO: this memory appears to be properly owned by the + * caller; why do we free it here? + */ + free (pinfo->addr); /* free the 'content' */ + free (pinfo->name); /* free the real name */ +} + +/* Go through the linked list of structures, free()ing the 'content' and the + * structs themselves. + */ +void free_mandata_struct (struct mandata *pinfo) +{ + while (pinfo) { + struct mandata *next; + + next = pinfo->next; + free_mandata_elements (pinfo); + free (pinfo); /* free the structure */ + pinfo = next; + } +} + +/* Get the key that should be used for a given name. The caller is + * responsible for freeing the return value. + */ +char *name_to_key (const char *name) +{ + return lower (name); +} + +/* return char ptr array to the data's fields */ +static char **split_data (char *content, char *start[]) +{ + int count; + + /* initialise pointers to first N-1 fields */ + for (count = 0; count < FIELDS - 1 ; count++) { + start[count] = strsep (&content, "\t"); + if (!start[count]) { + error (0, 0, + ngettext ("only %d field in content", + "only %d fields in content", count), + count); + gripe_corrupt_data (); + } + } + + /* initialise pointer to Nth field (whatis) */ + start[FIELDS - 1] = content; + if (!start[FIELDS - 1]) { + error (0, 0, + ngettext ("only %d field in content", + "only %d fields in content", FIELDS - 1), + FIELDS - 1); + gripe_corrupt_data (); + } + + return start; +} + +/* Parse the db-returned data and put it into a mandata format */ +void split_content (char *cont_ptr, struct mandata *pinfo) +{ + char *start[FIELDS]; + char **data; + + data = split_data (cont_ptr, start); + + pinfo->name = copy_if_set (*(data++)); + pinfo->ext = *(data++); + pinfo->sec = *(data++); + pinfo->mtime.tv_sec = (time_t) atol (*(data++)); + pinfo->mtime.tv_nsec = atol (*(data++)); + pinfo->id = **(data++); /* single char id */ + pinfo->pointer = *(data++); + pinfo->filter = *(data++); + pinfo->comp = *(data++); + pinfo->whatis = *(data); + + pinfo->addr = cont_ptr; + pinfo->next = (struct mandata *) NULL; +} + +/* Extract all of the names/extensions associated with this key. Each case + * variant of a name will be returned separately. + * + * names and ext should be pointers to valid memory which will be filled in + * with the address of the allocated arrays of names and extensions. The + * caller is expected to free these arrays. + */ +int list_extensions (char *data, char ***names, char ***ext) +{ + int count = 0; + int bound = 4; /* most multi keys will have fewer than this */ + + *names = xnmalloc (bound, sizeof **names); + *ext = xnmalloc (bound, sizeof **ext); + while (((*names)[count] = strsep (&data, "\t")) != NULL) { + (*ext)[count] = strsep (&data, "\t"); + if ((*ext)[count]) + ++count; + else + break; + + if (count >= bound) { + bound *= 2; + *names = xnrealloc (*names, bound, sizeof **names); + *ext = xnrealloc (*ext, bound, sizeof **ext); + } + } + + debug ("found %d names/extensions\n", count); + return count; +} + +/* These should be bitwise-ored together. */ +#define ALL 0 +#define EXACT 1 +#define MATCH_CASE 2 + +/* + There are three possibilities on lookup: + + 1) No data exists, lookup will fail, returned structure will be NULL. + 2) One data item exists. Item is returned as first in set of structures. + 3) Many items exist. They are all returned, in a multiple structure set. + */ +static struct mandata *dblookup (MYDBM_FILE dbf, const char *page, + const char *section, int flags) +{ + struct mandata *info = NULL; + datum key, cont; + + memset (&key, 0, sizeof key); + memset (&cont, 0, sizeof cont); + + MYDBM_SET (key, name_to_key (page)); + cont = MYDBM_FETCH (dbf, key); + MYDBM_FREE_DPTR (key); + + if (MYDBM_DPTR (cont) == NULL) { /* No entries at all */ + return info; /* indicate no entries */ + } else if (*MYDBM_DPTR (cont) != '\t') { /* Just one entry */ + info = infoalloc (); + split_content (MYDBM_DPTR (cont), info); + if (!info->name) + info->name = xstrdup (page); + if (!(flags & MATCH_CASE) || STREQ (info->name, page)) { + if (section == NULL) + return info; + if (flags & EXACT) { + if (STREQ (section, info->ext)) + return info; + } else { + if (STRNEQ (section, info->ext, + strlen (section))) + return info; + } + } + free_mandata_struct (info); + return NULL; + } else { /* multiple entries */ + char **names, **ext; + struct mandata *ret = NULL; + int refs, i; + + /* Extract all of the case-variant-names/extensions + * associated with this key. + */ + + refs = list_extensions (MYDBM_DPTR (cont) + 1, &names, &ext); + + /* Make the multi keys and look them up */ + + for (i = 0; i < refs; ++i) { + datum multi_cont; + + memset (&multi_cont, 0, sizeof multi_cont); + + /* Decide whether this part of a multi key is + * suitable. + */ + + if ((flags & MATCH_CASE) && !STREQ (names[i], page)) + continue; + + if (section != NULL) { + if (flags & EXACT) { + if (!STREQ (section, ext[i])) + continue; + } else { + if (!STRNEQ (section, ext[i], + strlen (section))) + continue; + } + } + + /* So the key is suitable ... */ + key = make_multi_key (names[i], ext[i]); + debug ("multi key lookup (%s)\n", MYDBM_DPTR (key)); + multi_cont = MYDBM_FETCH (dbf, key); + if (MYDBM_DPTR (multi_cont) == NULL) { + error (0, 0, _("bad fetch on multi key %s"), + MYDBM_DPTR (key)); + gripe_corrupt_data (); + } + MYDBM_FREE_DPTR (key); + + /* allocate info struct, fill it in and + point info to the next in the list */ + if (!ret) + ret = info = infoalloc (); + else + info = info->next = infoalloc (); + split_content (MYDBM_DPTR (multi_cont), info); + if (!info->name) + info->name = xstrdup (names[i]); + } + + free (names); + free (ext); + MYDBM_FREE_DPTR (cont); + return ret; + } +} + +struct mandata *dblookup_all (MYDBM_FILE dbf, const char *page, + const char *section, int match_case) +{ + return dblookup (dbf, page, section, + ALL | (match_case ? MATCH_CASE : 0)); +} + +struct mandata *dblookup_exact (MYDBM_FILE dbf, const char *page, + const char *section, int match_case) +{ + return dblookup (dbf, page, section, + EXACT | (match_case ? MATCH_CASE : 0)); +} + +struct mandata *dblookup_pattern (MYDBM_FILE dbf, const char *pattern, + const char *section, int match_case, + int pattern_regex, int try_descriptions) +{ + struct mandata *ret = NULL, *tail = NULL; + datum key, cont; + regex_t preg; + + if (pattern_regex) + xregcomp (&preg, pattern, + REG_EXTENDED | REG_NOSUB | + (match_case ? 0 : REG_ICASE)); + +#ifndef BTREE + datum nextkey; + + key = MYDBM_FIRSTKEY (dbf); + while (MYDBM_DPTR (key)) { + cont = MYDBM_FETCH (dbf, key); +#else /* BTREE */ + int end; + + end = btree_nextkeydata (dbf, &key, &cont); + while (!end) { +#endif /* !BTREE */ + struct mandata info; + char *tab; + int got_match; + + memset (&info, 0, sizeof (info)); + + if (!MYDBM_DPTR (cont)) + { + debug ("key was %s\n", MYDBM_DPTR (key)); + error (FATAL, 0, + _("Database %s corrupted; rebuild with " + "mandb --create"), + database); + } + + if (*MYDBM_DPTR (key) == '$') + goto nextpage; + + if (*MYDBM_DPTR (cont) == '\t') + goto nextpage; + + /* a real page */ + + split_content (MYDBM_DPTR (cont), &info); + + /* If there's a section given, does it match either the + * section or extension of this page? + */ + if (section && + (!STREQ (section, info.sec) && !STREQ (section, info.ext))) + goto nextpage; + + tab = strrchr (MYDBM_DPTR (key), '\t'); + if (tab) + *tab = '\0'; + + if (!info.name) + info.name = xstrdup (MYDBM_DPTR (key)); + + if (pattern_regex) + got_match = (regexec (&preg, info.name, + 0, NULL, 0) == 0); + else + got_match = fnmatch (pattern, info.name, + match_case ? 0 + : FNM_CASEFOLD) == 0; + if (try_descriptions && !got_match && info.whatis) { + if (pattern_regex) + got_match = (regexec (&preg, info.whatis, + 0, NULL, 0) == 0); + else + got_match = word_fnmatch (pattern, + info.whatis); + } + if (!got_match) + goto nextpage_tab; + + if (!ret) + ret = tail = infoalloc (); + else + tail = tail->next = infoalloc (); + memcpy (tail, &info, sizeof (info)); + info.name = NULL; /* steal memory */ + MYDBM_SET_DPTR (cont, NULL); /* == info.addr */ + +nextpage_tab: + if (tab) + *tab = '\t'; +nextpage: +#ifndef BTREE + nextkey = MYDBM_NEXTKEY (dbf, key); + MYDBM_FREE_DPTR (cont); + MYDBM_FREE_DPTR (key); + key = nextkey; +#else /* BTREE */ + MYDBM_FREE_DPTR (cont); + MYDBM_FREE_DPTR (key); + end = btree_nextkeydata (dbf, &key, &cont); +#endif /* !BTREE */ + info.addr = NULL; + free_mandata_elements (&info); + } + + if (pattern_regex) + regfree (&preg); + + return ret; +} diff --git a/libdb/db_ndbm.c b/libdb/db_ndbm.c new file mode 100644 index 0000000..af97032 --- /dev/null +++ b/libdb/db_ndbm.c @@ -0,0 +1,128 @@ +/* + * db_ndbm.c: low level ndbm interface routines for man. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * + * 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; 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 */ + +#ifdef NDBM + +#include <stdlib.h> +#include <stdio.h> + +#include <sys/file.h> /* for flock() */ +#include <sys/types.h> /* for open() */ +#include <sys/stat.h> + +#if HAVE_FCNTL_H +# include <fcntl.h> +#endif + +#include <unistd.h> + +#include "stat-time.h" +#include "timespec.h" +#include "xvasprintf.h" + +#include "manconfig.h" + +#include "mydbm.h" +#include "db_storage.h" + +/* release the lock and close the database */ +int ndbm_flclose (DBM *db) +{ + flock (dbm_dirfno (db), LOCK_UN); + dbm_close (db); + return 0; +} + +/* open a ndbm type database, with file locking. */ +DBM* ndbm_flopen (char *filename, int flags, int mode) +{ + DBM *db; + int lock_op; + int lock_failed; + + if (flags & ~O_RDONLY) { + /* flags includes O_RDWR or O_WRONLY, need an exclusive lock */ + lock_op = LOCK_EX | LOCK_NB; + } else { + lock_op = LOCK_SH | LOCK_NB; + } + + if (flags & O_TRUNC) { + /* opening the db is destructive, need to lock first */ + char *dir_fname; + int dir_fd; + + db = NULL; + lock_failed = 1; + dir_fname = xasprintf ("%s.dir", filename); + dir_fd = open (dir_fname, flags & ~O_TRUNC, mode); + free (dir_fname); + if (dir_fd != -1) { + if (!(lock_failed = flock (dir_fd, lock_op))) + db = dbm_open (filename, flags, mode); + close (dir_fd); + } + } else { + db = dbm_open (filename, flags, mode); + if (db) + lock_failed = flock (dbm_dirfno (db), lock_op); + } + + if (!db) + return NULL; + + if (lock_failed) { + gripe_lock (filename); + dbm_close (db); + return NULL; + } + + return db; +} + +struct timespec ndbm_get_time (DBM *db) +{ + struct stat st; + + if (fstat (dbm_dirfno (db), &st) < 0) { + struct timespec t; + t.tv_sec = -1; + t.tv_nsec = -1; + return t; + } + return get_stat_mtime (&st); +} + +void ndbm_set_time (DBM *db, const struct timespec time) +{ + struct timespec times[2]; + + times[0] = time; + times[1] = time; + futimens (dbm_dirfno (db), times); +} + +#endif /* NDBM */ diff --git a/libdb/db_storage.h b/libdb/db_storage.h new file mode 100644 index 0000000..6db37bb --- /dev/null +++ b/libdb/db_storage.h @@ -0,0 +1,104 @@ +/* + * db_storage.h: define mandata structure, some macros and prototypes + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2002, 2003, 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 + * + * Sat Oct 29 13:09:31 GMT 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +#ifndef DB_STORAGE_H +#define DB_STORAGE_H + +/* These definitions give an inherent precedence to each particular type + of manual page: + + ULT_MAN: ultimate manual page, the full source nroff file. + SO_MAN: source nroff file containing .so request to an ULT_MAN. + WHATIS_MAN: virtual `whatis referenced' page pointing to an ULT_MAN. + STRAY_CAT: pre-formatted manual page with no source. + WHATIS_CAT: virtual `whatis referenced' page pointing to a STRAY_CAT. */ + +/* WHATIS_MAN and WHATIS_CAT are deprecated. */ + +#define ULT_MAN 'A' +#define SO_MAN 'B' +#define WHATIS_MAN 'C' +#define STRAY_CAT 'D' +#define WHATIS_CAT 'E' + +#define FIELDS 10 /* No of fields in each database page `content' */ + +#include "timespec.h" + +#include "xalloc.h" + +#include "mydbm.h" + +struct mandata { + struct mandata *next; /* ptr to next structure, if any */ + char *addr; /* ptr to memory containing the fields */ + + char *name; /* Name of page, if != key */ + + /* The following are all const because they should be pointers to + * parts of strings allocated elsewhere (often the addr field above) + * and should not be written through or freed themselves. + */ + const char *ext; /* Filename ext w/o comp ext */ + const char *sec; /* Section name/number */ + char id; /* id for this entry */ + const char *pointer; /* id related file pointer */ + const char *comp; /* Compression extension */ + const char *filter; /* filters needed for the page */ + const char *whatis; /* whatis description for page */ + struct timespec mtime; /* mod time for file */ +}; + +/* used by the world */ +extern struct mandata *dblookup_all (MYDBM_FILE dbf, const char *page, + const char *section, int match_case); +extern struct mandata *dblookup_exact (MYDBM_FILE dbf, const char *page, + const char *section, int match_case); +extern struct mandata *dblookup_pattern (MYDBM_FILE dbf, const char *page, + const char *section, int match_case, + int pattern_regex, + int try_descriptions); +extern int dbstore (MYDBM_FILE dbf, struct mandata *in, const char *base); +extern int dbdelete (MYDBM_FILE dbf, const char *name, struct mandata *in); +extern void dbprintf (const struct mandata *info); +extern void free_mandata_elements (struct mandata *pinfo); +extern void free_mandata_struct (struct mandata *pinfo); +extern void split_content (char *cont_ptr, struct mandata *pinfo); +extern int compare_ids (char a, char b, int promote_links); + +/* local to db routines */ +extern void gripe_lock (char *filename); +extern void gripe_corrupt_data (void); +extern datum make_multi_key (const char *page, const char *ext); + +/* allocate a mandata structure */ +#define infoalloc() XZALLOC (struct mandata) + +extern char *name_to_key (const char *name); +extern int list_extensions (char *data, char ***names, char ***ext); +extern void gripe_replace_key (const char *data); +extern const char *dash_if_unset (const char *str); + +#endif diff --git a/libdb/db_store.c b/libdb/db_store.c new file mode 100644 index 0000000..062db71 --- /dev/null +++ b/libdb/db_store.c @@ -0,0 +1,369 @@ +/* + * db_store.c: dbstore(), database storage routine. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002 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; 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 <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include "timespec.h" +#include "xvasprintf.h" + +#include "gettext.h" +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "error.h" + +#include "mydbm.h" +#include "db_storage.h" + +/* compare_ids(a,b) is negative if id 'a' is preferred to id 'b', i.e. if + * 'a' is a more canonical database entry than 'b'; positive if 'b' is + * preferred to 'a'; and zero if they are equivalent. This usually goes in + * comparison order, but there's a special exception when FAVOUR_STRAYCATS + * is set. + * + * If promote_links is true, consider SO_MAN equivalent to ULT_MAN. This is + * appropriate when sorting candidate pages for display. + */ +int compare_ids (char a, char b, int promote_links) +{ +#ifdef FAVOUR_STRAYCATS + if (a == WHATIS_MAN && b == STRAY_CAT) + return 1; + else if (a == STRAY_CAT && b == WHATIS_MAN) + return -1; +#endif + + if (promote_links) { + if ((a == ULT_MAN && b == SO_MAN) || + (a == SO_MAN && b == ULT_MAN)) + return 0; + } + + if (a < b) + return -1; + else if (a > b) + return 1; + else + return 0; +} + +/* The do_we_replace logic. Decide, for some existing key, whether it should + * be replaced with some new contents. Check that names and section + * extensions match before calling this. + */ +static int replace_if_necessary (MYDBM_FILE dbf, + struct mandata *newdata, + struct mandata *olddata, + datum newkey, datum newcont) +{ + /* It's OK to replace ULT_MAN with SO_MAN if the mtime is newer. It + * isn't OK to replace a real page (either ULT_MAN or SO_MAN) with a + * whatis reference; if the real page really went away then + * purge_missing will catch that in time, but a real page that still + * exists should always take precedence. + */ + if (compare_ids (newdata->id, olddata->id, 1) <= 0 && + timespec_cmp (newdata->mtime, olddata->mtime) > 0) { + debug ("replace_if_necessary(): newer mtime; replacing\n"); + if (MYDBM_REPLACE (dbf, newkey, newcont)) + gripe_replace_key (MYDBM_DPTR (newkey)); + return 0; + } + + if (compare_ids (newdata->id, olddata->id, 0) < 0) { + if (MYDBM_REPLACE (dbf, newkey, newcont)) + gripe_replace_key (MYDBM_DPTR (newkey)); + return 0; + } + + /* TODO: name fields should be collated with the requested name */ + + if (newdata->id == olddata->id) { + if (STREQ (dash_if_unset (newdata->comp), olddata->comp)) + return 0; /* same file */ + else { + debug ("ignoring differing compression " + "extensions: %s\n", MYDBM_DPTR (newkey)); + return 1; /* differing exts */ + } + } + + debug ("ignoring differing ids: %s\n", MYDBM_DPTR (newkey)); + return 0; +} + +/* The complement of split_content */ +static datum make_content (struct mandata *in) +{ + datum cont; + static const char dash[] = "-"; + + memset (&cont, 0, sizeof cont); + + if (!in->pointer) + in->pointer = dash; + if (!in->filter) + in->filter = dash; + if (!in->comp) + in->comp = dash; + if (!in->whatis) + in->whatis = dash + 1; + + MYDBM_SET (cont, xasprintf ( + "%s\t%s\t%s\t%ld\t%ld\t%c\t%s\t%s\t%s\t%s", + dash_if_unset (in->name), + in->ext, + in->sec, + (long) in->mtime.tv_sec, + (long) in->mtime.tv_nsec, + in->id, + in->pointer, + in->filter, + in->comp, + in->whatis)); + +#ifdef NDBM + /* limit of 4096 bytes of data using ndbm */ + if (MYDBM_DSIZE (cont) > 4095) { + MYDBM_DPTR (cont)[4095] = '\0'; + MYDBM_DSIZE (cont) = 4096; + } +#endif + return cont; +} + +/* + Any one of three situations can occur when storing some data. + + 1) no simple key is found. + store as singular reference. + 2) simple key already exists, content starts with a '\t'. + Already multiple reference. Add our new item in multiple format + and update the simple key content, to point to our new one also. + 3) simple key already exists, content does not start with a '\t'. + First we have to reformat the simple key into a multi key for the + old item, and insert. Then we have to insert the new data as a + multi key. Lastly we must create the simple key and do a replace + on it. + + Use precedence algorithm on inserts. If we already have a key assigned + to the new value, check priority of page using id. If new page is higher + (lower value), replace old with new, otherwise ignore new page. + + If we have two ULT_MAN pages competing for the same key, we must have + more than one of foo.sec, foo.sec.comp1, foo.sec.comp2. OR we have a + replacement page. If the mtimes differ, throw out the old struct and + replace it with the new, if the comp exts differ, oops, this is bad, + keep one and return appropriate error code. + + If we have two WHATIS_MAN pages or a WHATIS_MAN and a SO_MAN page + competing for the same key, don't worry. This will happen a lot and is + not a problem. + + return errorcode or 0 on success. +*/ +int dbstore (MYDBM_FILE dbf, struct mandata *in, const char *base) +{ + datum oldkey, oldcont; + + memset (&oldkey, 0, sizeof oldkey); + memset (&oldcont, 0, sizeof oldcont); + + /* create a simple key */ + MYDBM_SET (oldkey, name_to_key (base)); + if (!*base) { + dbprintf (in); + return 2; + } + + if (in->name) { + error (0, 0, "in->name (%s) should not be set when calling " + "dbstore()!\n", + in->name); + free (in->name); + in->name = NULL; + } + + /* get the content for the simple key */ + + oldcont = MYDBM_FETCH (dbf, oldkey); + + if (MYDBM_DPTR (oldcont) == NULL) { /* situation (1) */ + if (!STREQ (base, MYDBM_DPTR (oldkey))) + in->name = xstrdup (base); + oldcont = make_content (in); + if (MYDBM_REPLACE (dbf, oldkey, oldcont)) + gripe_replace_key (MYDBM_DPTR (oldkey)); + MYDBM_FREE_DPTR (oldcont); + free (in->name); + in->name = NULL; + } else if (*MYDBM_DPTR (oldcont) == '\t') { /* situation (2) */ + datum newkey, newcont; + + memset (&newkey, 0, sizeof newkey); + memset (&newcont, 0, sizeof newcont); + + newkey = make_multi_key (base, in->ext); + newcont = make_content (in); + + /* Try to insert the new multi data */ + + if (MYDBM_INSERT (dbf, newkey, newcont)) { + datum cont; + struct mandata info; + int ret; + + MYDBM_FREE_DPTR (oldcont); + cont = MYDBM_FETCH (dbf, newkey); + split_content (MYDBM_DPTR (cont), &info); + ret = replace_if_necessary (dbf, in, &info, + newkey, newcont); + /* MYDBM_FREE_DPTR (cont); */ + free_mandata_elements (&info); + MYDBM_FREE_DPTR (newkey); + MYDBM_FREE_DPTR (newcont); + MYDBM_FREE_DPTR (oldkey); + + return ret; + } + + /* Now lets add some info to the simple key's cont. */ + + /* This next bit needs to be done first as we'll wipe out + MYDBM_DPTR (oldcont) otherwise (for NDBM only!) */ + + MYDBM_FREE_DPTR (newkey); + MYDBM_FREE_DPTR (newcont); + + MYDBM_SET (newcont, xasprintf ( + "%s\t%s\t%s", MYDBM_DPTR (oldcont), base, in->ext)); + MYDBM_FREE_DPTR (oldcont); + + /* Try to replace the old simple data with the new stuff */ + + if (MYDBM_REPLACE (dbf, oldkey, newcont)) + gripe_replace_key (MYDBM_DPTR (oldkey)); + + MYDBM_FREE_DPTR (newcont); + } else { /* situation (3) */ + datum newkey, newcont, lastkey, lastcont; + struct mandata old; + char *old_name; + + memset (&newkey, 0, sizeof newkey); + memset (&newcont, 0, sizeof newcont); + memset (&lastkey, 0, sizeof lastkey); + memset (&lastcont, 0, sizeof lastcont); + + /* Extract the old singular reference */ + + split_content (MYDBM_DPTR (oldcont), &old); + + /* Create multi keys for both old + and new items, create new content */ + + if (old.name) + old_name = xstrdup (old.name); + else + old_name = xstrdup (MYDBM_DPTR (oldkey)); + + lastkey = make_multi_key (old_name, old.ext); + + /* Check against identical multi keys before inserting + into db */ + + if (STREQ (old_name, base) && STREQ (old.ext, in->ext)) { + int ret; + + if (!STREQ (base, MYDBM_DPTR (oldkey))) + in->name = xstrdup (base); + newcont = make_content (in); + ret = replace_if_necessary (dbf, in, &old, + oldkey, newcont); + /* MYDBM_FREE_DPTR (oldcont); */ + free_mandata_elements (&old); + MYDBM_FREE_DPTR (newcont); + MYDBM_FREE_DPTR (lastkey); + MYDBM_FREE_DPTR (oldkey); + free (old_name); + free (in->name); + in->name = NULL; + + return ret; + } + + /* Multi keys use the proper case, and so don't need a name + * field. + */ + if (old.name) { + free (old.name); + old.name = NULL; + } + + lastcont = make_content (&old); + + /* We always replace here; if the multi key already exists + * in the database, then that indicates some kind of + * database corruption, but our new multi key is almost + * certainly better. + */ + if (MYDBM_REPLACE (dbf, lastkey, lastcont)) + gripe_replace_key (MYDBM_DPTR (lastkey)); + + MYDBM_FREE_DPTR (lastkey); + MYDBM_FREE_DPTR (lastcont); + + newkey = make_multi_key (base, in->ext); + newcont = make_content (in); + + if (MYDBM_REPLACE (dbf, newkey, newcont)) + gripe_replace_key (MYDBM_DPTR (newkey)); + + MYDBM_FREE_DPTR (newkey); + MYDBM_FREE_DPTR (newcont); + + /* Now build a simple reference to the above two items */ + + MYDBM_SET (newcont, xasprintf ( + "\t%s\t%s\t%s\t%s", old_name, old.ext, base, in->ext)); + + if (MYDBM_REPLACE (dbf, oldkey, newcont)) + gripe_replace_key (MYDBM_DPTR (oldkey)); + + /* MYDBM_FREE_DPTR (oldcont); */ + free_mandata_elements (&old); + MYDBM_FREE_DPTR (newcont); + free (old_name); + } + + MYDBM_FREE_DPTR (oldkey); + return 0; +} diff --git a/libdb/db_ver.c b/libdb/db_ver.c new file mode 100644 index 0000000..5ac306d --- /dev/null +++ b/libdb/db_ver.c @@ -0,0 +1,83 @@ +/* + * dbver.c: code to read, write and identify the database version no. + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002 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; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Mon Aug 18 20:35:30 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <string.h> +#include <stdlib.h> + +#include "gettext.h" +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "error.h" + +#include "mydbm.h" + +int dbver_rd (MYDBM_FILE dbfile) +{ + datum key, content; + + memset (&key, 0, sizeof key); + + MYDBM_SET (key, xstrdup (VER_KEY)); + + content = MYDBM_FETCH (dbfile, key); + + MYDBM_FREE_DPTR (key); + + if (MYDBM_DPTR (content) == NULL) { + debug (_("warning: %s has no version identifier\n"), database); + return 1; + } else if (!STREQ (MYDBM_DPTR (content), VER_ID)) { + debug (_("warning: %s is version %s, expecting %s\n"), + database, MYDBM_DPTR (content), VER_ID); + MYDBM_FREE_DPTR (content); + return 1; + } else { + MYDBM_FREE_DPTR (content); + return 0; + } +} + +void dbver_wr (MYDBM_FILE dbfile) +{ + datum key, content; + + memset (&key, 0, sizeof key); + memset (&content, 0, sizeof content); + + MYDBM_SET (key, xstrdup (VER_KEY)); + MYDBM_SET (content, xstrdup (VER_ID)); + + if (MYDBM_INSERT (dbfile, key, content) != 0) + error (FATAL, 0, + _("fatal: unable to insert version identifier into %s"), + database); + + MYDBM_FREE_DPTR (key); + MYDBM_FREE_DPTR (content); +} diff --git a/libdb/mydbm.h b/libdb/mydbm.h new file mode 100644 index 0000000..567e96a --- /dev/null +++ b/libdb/mydbm.h @@ -0,0 +1,189 @@ +/* + * mydbm.h: database interface definitions and prototypes. + * + * Copyright (C) 1994, 1995, Graeme W. Wilford. (Wilf.) + * + * 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 + * + * Header file to make programming independent of db type used + * + * Currently satisfies: + * + * *hash based* + * GNU dbm: (gdbm & ndbm) + * Berkeley db: (ndbm) + * `native': (ndbm) + * + * *binary tree based* + * Berkeley db: (BTREE) + * + * Tue Apr 26 12:56:44 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +#ifndef MYDBM_H +# define MYDBM_H + +# include "timespec.h" + +# if defined(GDBM) && !defined(NDBM) && !defined(BTREE) + +# include <gdbm.h> + +# ifndef HAVE_GDBM_EXISTS +extern int gdbm_exists (GDBM_FILE db, datum key); +# endif /* !HAVE_GDBM_EXISTS */ + +/* gdbm_nextkey() is not lexicographically sorted, so we need to keep the + * filename around to use as a hash key. + */ +typedef struct { + char *name; + GDBM_FILE file; +} *man_gdbm_wrapper; + +man_gdbm_wrapper man_gdbm_open_wrapper (const char *name, int flags); +datum man_gdbm_firstkey (man_gdbm_wrapper wrap); +datum man_gdbm_nextkey (man_gdbm_wrapper wrap, datum key); +struct timespec man_gdbm_get_time (man_gdbm_wrapper wrap); +void man_gdbm_set_time (man_gdbm_wrapper wrap, const struct timespec time); +void man_gdbm_close (man_gdbm_wrapper wrap); + +# define BLK_SIZE 0 /* to invoke normal fs block size */ +# define DB_EXT ".db" +# define MYDBM_FILE man_gdbm_wrapper +# define MYDBM_DPTR(d) ((d).dptr) +# define MYDBM_SET_DPTR(d, value) ((d).dptr = (value)) +# define MYDBM_DSIZE(d) ((d).dsize) +# define MYDBM_CTRWOPEN(file) \ + man_gdbm_open_wrapper(file, GDBM_NEWDB|GDBM_FAST) +# define MYDBM_CRWOPEN(file) \ + man_gdbm_open_wrapper(file, GDBM_WRCREAT|GDBM_FAST) +# define MYDBM_RWOPEN(file) \ + man_gdbm_open_wrapper(file, GDBM_WRITER|GDBM_FAST) +# define MYDBM_RDOPEN(file) \ + man_gdbm_open_wrapper(file, GDBM_READER) +# define MYDBM_INSERT(db, key, cont) gdbm_store((db)->file, key, cont, GDBM_INSERT) +# define MYDBM_REPLACE(db, key, cont) gdbm_store((db)->file, key, cont, GDBM_REPLACE) +# define MYDBM_EXISTS(db, key) gdbm_exists((db)->file, key) +# define MYDBM_DELETE(db, key) gdbm_delete((db)->file, key) +# define MYDBM_FETCH(db, key) gdbm_fetch((db)->file, key) +# define MYDBM_CLOSE(db) man_gdbm_close(db) +# define MYDBM_FIRSTKEY(db) man_gdbm_firstkey(db) +# define MYDBM_NEXTKEY(db, key) man_gdbm_nextkey(db, key) +# define MYDBM_GET_TIME(db) man_gdbm_get_time(db) +# define MYDBM_SET_TIME(db, time) man_gdbm_set_time(db, time) +# define MYDBM_REORG(db) gdbm_reorganize((db)->file) + +# elif defined(NDBM) && !defined(GDBM) && !defined(BTREE) + +# include <ndbm.h> + +# if HAVE_FCNTL_H +# include <fcntl.h> +# endif + +/* Berkeley db routines emulate ndbm but don't add .dir & .pag, just .db! */ +# ifdef _DB_H_ /* has Berkeley db.h been included? */ +# define BERKELEY_DB +# endif /* _DB_H_ */ + +extern DBM *ndbm_flopen(char *file, int flags, int mode); +extern struct timespec ndbm_get_time(DBM *db); +extern void ndbm_set_time(DBM *db, const struct timespec time); +extern int ndbm_flclose(DBM *db); + +# define DB_EXT "" +# define MYDBM_FILE DBM* +# define MYDBM_DPTR(d) ((d).dptr) +# define MYDBM_SET_DPTR(d, value) ((d).dptr = (value)) +# define MYDBM_DSIZE(d) ((d).dsize) +# define MYDBM_CTRWOPEN(file) ndbm_flopen(file, O_TRUNC|O_CREAT|O_RDWR, DBMODE) +# define MYDBM_CRWOPEN(file) ndbm_flopen(file, O_CREAT|O_RDWR, DBMODE) +# define MYDBM_RWOPEN(file) ndbm_flopen(file, O_RDWR, DBMODE) +# define MYDBM_RDOPEN(file) ndbm_flopen(file, O_RDONLY, DBMODE) +# define MYDBM_INSERT(db, key, cont) dbm_store(db, key, cont, DBM_INSERT) +# define MYDBM_REPLACE(db, key, cont) dbm_store(db, key, cont, DBM_REPLACE) +# define MYDBM_EXISTS(db, key) (dbm_fetch(db, key).dptr != NULL) +# define MYDBM_DELETE(db, key) dbm_delete(db, key) +# define MYDBM_FETCH(db, key) copy_datum(dbm_fetch(db, key)) +# define MYDBM_CLOSE(db) ndbm_flclose(db) +# define MYDBM_FIRSTKEY(db) copy_datum(dbm_firstkey(db)) +# define MYDBM_NEXTKEY(db, key) copy_datum(dbm_nextkey(db)) +# define MYDBM_GET_TIME(db) ndbm_get_time(db) +# define MYDBM_SET_TIME(db, time) ndbm_set_time(db, time) +# define MYDBM_REORG(db) /* nothing - not implemented */ + +# elif defined(BTREE) && !defined(NDBM) && !defined(GDBM) + +# include <sys/types.h> +# include <fcntl.h> +# include <limits.h> +# include BDB_H + +typedef DBT datum; + +extern DB *btree_flopen(char *filename, int flags, int mode); +extern int btree_close(DB *db); +extern int btree_exists(DB *db, datum key); +extern datum btree_fetch(DB *db, datum key); +extern int btree_insert(DB *db, datum key, datum cont); +extern datum btree_firstkey(DB *db); +extern datum btree_nextkey(DB *db); +extern int btree_replace(DB *db, datum key, datum content); +extern int btree_nextkeydata(DB *db, datum *key, datum *cont); +extern struct timespec btree_get_time(DB *db); +extern void btree_set_time(DB *db, const struct timespec time); + +# define DB_EXT ".bt" +# define MYDBM_FILE DB* +# define MYDBM_DPTR(d) ((char *) (d).data) +# define MYDBM_SET_DPTR(d, value) ((d).data = (char *) (value)) +# define MYDBM_DSIZE(d) ((d).size) +# define MYDBM_CTRWOPEN(file) btree_flopen(file, O_TRUNC|O_CREAT|O_RDWR, DBMODE) +# define MYDBM_CRWOPEN(file) btree_flopen(file, O_CREAT|O_RDWR, DBMODE) +# define MYDBM_RWOPEN(file) btree_flopen(file, O_RDWR, DBMODE) +# define MYDBM_RDOPEN(file) btree_flopen(file, O_RDONLY, DBMODE) +# define MYDBM_INSERT(db, key, cont) btree_insert(db, key, cont) +# define MYDBM_REPLACE(db, key, cont) btree_replace(db, key, cont) +# define MYDBM_EXISTS(db, key) btree_exists(db, key) +# define MYDBM_DELETE(db, key) ((db->del)(db, &key, 0) ? -1 : 0) +# define MYDBM_FETCH(db, key) btree_fetch(db, key) +# define MYDBM_CLOSE(db) btree_close(db) +# define MYDBM_FIRSTKEY(db) btree_firstkey(db) +# define MYDBM_NEXTKEY(db, key) btree_nextkey(db) +# define MYDBM_GET_TIME(db) btree_get_time(db) +# define MYDBM_SET_TIME(db, time) btree_set_time(db, time) +# define MYDBM_REORG(db) /* nothing - not implemented */ + +# else /* not GDBM or NDBM or BTREE */ +# error Define either GDBM, NDBM or BTREE before including mydbm.h +# endif /* not GDBM or NDBM or BTREE */ + +#define MYDBM_RESET_DSIZE(d) (MYDBM_DSIZE(d) = strlen(MYDBM_DPTR(d)) + 1) +#define MYDBM_SET(d, value) do { MYDBM_SET_DPTR(d, value); MYDBM_RESET_DSIZE(d); } while (0) +#define MYDBM_FREE_DPTR(d) do { free (MYDBM_DPTR (d)); MYDBM_SET_DPTR (d, NULL); } while (0) + +extern char *database; + +/* db_lookup.c */ +extern datum copy_datum (datum dat); + +/* db_ver.c */ +extern void dbver_wr(MYDBM_FILE dbfile); +extern int dbver_rd(MYDBM_FILE dbfile); + +#endif /* MYDBM_H */ |