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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:19:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:19:27 +0000 |
commit | e0023883c6d2e6745a19e4b48e186ed156c1fca8 (patch) | |
tree | 1a48b8056ec984385d0d862b683535d04d6ed215 /src/straycats.c | |
parent | Initial commit. (diff) | |
download | man-db-e0023883c6d2e6745a19e4b48e186ed156c1fca8.tar.xz man-db-e0023883c6d2e6745a19e4b48e186ed156c1fca8.zip |
Adding upstream version 2.11.2.upstream/2.11.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/straycats.c')
-rw-r--r-- | src/straycats.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/src/straycats.c b/src/straycats.c new file mode 100644 index 0000000..932230b --- /dev/null +++ b/src/straycats.c @@ -0,0 +1,362 @@ +/* + * straycats.c: find and process stray cat files + * + * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.) + * Copyright (C) 2001, 2002, 2003, 2004, 2006, 2007, 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 + * + * Tue May 3 21:24:51 BST 1994 Wilf. (G.Wilford@ee.surrey.ac.uk) + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include <assert.h> +#include <stdbool.h> +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <signal.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <dirent.h> + +#include "canonicalize.h" +#include "dirname.h" +#include "error.h" +#include "gl_array_list.h" +#include "gl_xlist.h" +#include "xalloc.h" + +#include "gettext.h" +#define _(String) gettext (String) + +#include "manconfig.h" + +#include "appendstr.h" +#include "compression.h" +#include "debug.h" +#include "filenames.h" +#include "glcontainers.h" +#include "pipeline.h" +#include "decompress.h" +#include "encodings.h" +#include "orderfiles.h" +#include "sandbox.h" +#include "security.h" +#include "util.h" + +#include "mydbm.h" +#include "db_storage.h" + +#include "descriptions.h" +#include "lexgrog.h" +#include "manp.h" +#include "manconv_client.h" +#include "straycats.h" +#include "ult_src.h" + +extern man_sandbox *sandbox; + +static char *catdir, *mandir; + +static int check_for_stray (MYDBM_FILE dbf) +{ + DIR *cdir; + struct dirent *catlist; + gl_list_t names; + const char *name; + size_t lenman, lencat; + int strays = 0; + + cdir = opendir (catdir); + if (!cdir) { + error (0, errno, _("can't search directory %s"), catdir); + return 0; + } + + names = new_string_list (GL_ARRAY_LIST, false); + + while ((catlist = readdir (cdir)) != NULL) { + if (*catlist->d_name == '.' && + strlen (catlist->d_name) < (size_t) 3) + continue; + gl_list_add_last (names, xstrdup (catlist->d_name)); + } + closedir (cdir); + + order_files (catdir, &names); + + mandir = appendstr (mandir, "/", (void *) 0); + catdir = appendstr (catdir, "/", (void *) 0); + lenman = strlen (mandir); + lencat = strlen (catdir); + + GL_LIST_FOREACH (names, name) { + struct mandata *info; + char *ext, *section = NULL; + short found; + struct stat buf; + struct compression *comp; + + info = XZALLOC (struct mandata); + + *(mandir + lenman) = *(catdir + lencat) = '\0'; + mandir = appendstr (mandir, name, (void *) 0); + catdir = appendstr (catdir, name, (void *) 0); + + ext = strrchr (mandir, '.'); + if (!ext) { + if (quiet < 2) + error (0, 0, + _("warning: %s: " + "ignoring bogus filename"), + catdir); + goto next; + } else if (comp_info (ext, false)) { + *ext = '\0'; + info->comp = xstrdup (ext + 1); + } + + ext = strrchr (mandir, '.'); + *(mandir + lenman - 1) = '\0'; + section = xstrdup (strrchr (mandir, '/') + 4); + *(mandir + lenman - 1) = '/'; + + /* check for bogosity */ + + if (!ext || strncmp (ext + 1, section, strlen (section)) != 0) { + if (quiet < 2) + error (0, 0, + _("warning: %s: " + "ignoring bogus filename"), + catdir); + goto next; + } + + /* + * now that we've stripped off the cat compression + * extension (if it has one), we can try some of ours. + */ + + debug ("Testing for existence: %s\n", mandir); + + if (stat (mandir, &buf) == 0) + found = 1; + else if ((comp = comp_file (mandir))) { + found = 1; + free (comp->stem); + } else + found = 0; + + if (!found) { + decompress *decomp; + struct mandata *exists; + lexgrog lg; + char *lang, *page_encoding; + char *mandir_base; + pipecmd *col_cmd; + char *col_locale; + char *fullpath; + + /* we have a straycat. Need to filter it and get + its whatis (if necessary) */ + + lg.whatis = 0; + *(ext++) = '\0'; + info->ext = xstrdup (ext); + + /* see if we already have it, before going any + further */ + mandir_base = base_name (mandir); + exists = dblookup_exact (dbf, mandir_base, info->ext, + true); + if (exists && + compare_ids (STRAY_CAT, exists->id, false) >= 0) + goto next_exists; + debug ("%s(%s) is not in the db.\n", + mandir_base, info->ext); + + /* fill in the missing parts of the structure */ + info->sec = xstrdup (section); + info->id = STRAY_CAT; + info->filter = xstrdup ("-"); + info->mtime.tv_sec = 0; + info->mtime.tv_nsec = 0; + + drop_effective_privs (); + decomp = decompress_open (catdir, 0); + regain_effective_privs (); + if (!decomp) { + error (0, errno, _("can't open %s"), catdir); + goto next_exists; + } + + lang = lang_dir (mandir); + page_encoding = get_page_encoding (lang); + if (page_encoding) + add_manconv (decompress_get_pipeline (decomp), + page_encoding, "UTF-8"); + free (page_encoding); + free (lang); + + col_cmd = pipecmd_new_argstr + (get_def_user ("col", PROG_COL)); + pipecmd_arg (col_cmd, "-bx"); + col_locale = find_charset_locale ("UTF-8"); + if (col_locale) { + pipecmd_setenv (col_cmd, "LC_CTYPE", + col_locale); + free (col_locale); + } + pipecmd_pre_exec (col_cmd, sandbox_load, sandbox_free, + sandbox); + pipeline_command (decompress_get_pipeline (decomp), + col_cmd); + + fullpath = canonicalize_file_name (catdir); + if (!fullpath) + gripe_canonicalize_failed (catdir); + else { + char *catdir_base; + + free (fullpath); + drop_effective_privs (); + decompress_start (decomp); + regain_effective_privs (); + + strays++; + + lg.type = CATPAGE; + catdir_base = base_name (catdir); + if (find_name_decompressed (decomp, + catdir_base, + &lg)) { + gl_list_t descs, trace; + strays++; + descs = parse_descriptions + (mandir_base, lg.whatis); + trace = new_string_list (GL_ARRAY_LIST, + true); + gl_list_add_last (trace, + xstrdup (catdir)); + store_descriptions (dbf, descs, info, + NULL, mandir_base, + trace); + gl_list_free (trace); + gl_list_free (descs); + } else if (quiet < 2) + error (0, 0, _("warning: %s: whatis parse for %s(%s) failed"), + catdir, mandir_base, info->sec); + free (catdir_base); + } + + free (lg.whatis); + decompress_free (decomp); +next_exists: + free_mandata_struct (exists); + free (mandir_base); + } +next: + free (section); + free_mandata_struct (info); + } + gl_list_free (names); + return strays; +} + +static int open_catdir (MYDBM_FILE dbf) +{ + DIR *cdir; + struct dirent *catlist; + size_t catlen, manlen; + int strays = 0; + + cdir = opendir (catdir); + if (!cdir) { + error (0, errno, _("can't search directory %s"), catdir); + return 0; + } + + if (!quiet) + printf (_("Checking for stray cats under %s...\n"), catdir); + + catdir = appendstr (catdir, "/", (void *) 0); + mandir = appendstr (mandir, "/", (void *) 0); + catlen = strlen (catdir); + manlen = strlen (mandir); + + /* should make this case insensitive */ + while ((catlist = readdir (cdir))) { + char *t1; + + if (strncmp (catlist->d_name, "cat", 3) != 0) + continue; + + catdir = appendstr (catdir, catlist->d_name, (void *) 0); + mandir = appendstr (mandir, catlist->d_name, (void *) 0); + + *(t1 = mandir + manlen) = 'm'; + *(t1 + 2) = 'n'; + + strays += check_for_stray (dbf); + + *(catdir + catlen) = *(mandir + manlen) = '\0'; + } + closedir (cdir); + return strays; +} + +int straycats (MYDBM_FILE dbf, const char *manpath) +{ + char *catpath; + int strays; + + assert (dbf->file); + + catpath = get_catpath (manpath, SYSTEM_CAT | USER_CAT); + + /* look in the usual catpath location */ + mandir = xstrdup (manpath); + catdir = xstrdup (manpath); + strays = open_catdir (dbf); + + /* look in the alternate catpath location if we have one + and it's different from the usual catpath */ + + if (catpath) + debug ("catpath: %s, manpath: %s\n", catpath, manpath); + + if (catpath && strcmp (catpath, manpath) != 0) { + *mandir = *catdir = '\0'; + mandir = appendstr (mandir, manpath, (void *) 0); + catdir = appendstr (catdir, catpath, (void *) 0); + strays += open_catdir (dbf); + } + + free (mandir); + free (catdir); + + free (catpath); + + return strays; +} |