Adding upstream version 2.11.2.upstream/2.11.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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;
+}