1 /* Copyright (c) 1998, 2000, 2003-2008, 2011 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 #include <stdio_ext.h>
30 #include <sys/param.h>
31 #include <sys/types.h>
36 /* Wrapper functions with error checking for standard functions. */
37 extern char *xstrdup (const char *s);
40 /* Names of the databases. */
41 const char *const dbnames[lastdb] =
46 [servdb] = "services",
47 [netgrdb] = "netgroup"
52 find_db (const char *name)
54 for (int cnt = 0; cnt < lastdb; ++cnt)
55 if (strcmp (name, dbnames[cnt]) == 0)
58 error (0, 0, _("database %s is not supported"), name);
63 nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
66 char *line, *cp, *entry, *arg1, *arg2;
69 const unsigned int initial_error_message_count = error_message_count;
71 /* Open the configuration file. */
72 fp = fopen (fname, "r");
76 /* The stream is not used by more than one thread. */
77 (void) __fsetlocking (fp, FSETLOCKING_BYCALLER);
84 ssize_t n = getline (&line, &len, fp);
87 if (line[n - 1] == '\n')
90 /* Because the file format does not know any form of quoting we
91 can search forward for the next '#' character and if found
92 make it terminating the line. */
93 *strchrnul (line, '#') = '\0';
95 /* If the line is blank it is ignored. */
100 while (isspace (*entry) && *entry != '\0')
103 while (!isspace (*cp) && *cp != '\0')
108 if (strlen (entry) == 0)
109 error (0, 0, _("Parse error: %s"), line);
110 while (isspace (*arg1) && *arg1 != '\0')
113 while (!isspace (*cp) && *cp != '\0')
118 if (strlen (arg2) > 0)
120 while (isspace (*arg2) && *arg2 != '\0')
123 while (!isspace (*cp) && *cp != '\0')
128 if (strcmp (entry, "positive-time-to-live") == 0)
130 int idx = find_db (arg1);
132 dbs[idx].postimeout = atol (arg2);
134 else if (strcmp (entry, "negative-time-to-live") == 0)
136 int idx = find_db (arg1);
138 dbs[idx].negtimeout = atol (arg2);
140 else if (strcmp (entry, "suggested-size") == 0)
142 int idx = find_db (arg1);
144 dbs[idx].suggested_module
145 = atol (arg2) ?: DEFAULT_SUGGESTED_MODULE;
147 else if (strcmp (entry, "enable-cache") == 0)
149 int idx = find_db (arg1);
152 if (strcmp (arg2, "no") == 0)
153 dbs[idx].enabled = 0;
154 else if (strcmp (arg2, "yes") == 0)
155 dbs[idx].enabled = 1;
158 else if (strcmp (entry, "check-files") == 0)
160 int idx = find_db (arg1);
163 if (strcmp (arg2, "no") == 0)
164 dbs[idx].check_file = 0;
165 else if (strcmp (arg2, "yes") == 0)
166 dbs[idx].check_file = 1;
169 else if (strcmp (entry, "max-db-size") == 0)
171 int idx = find_db (arg1);
173 dbs[idx].max_db_size = atol (arg2) ?: DEFAULT_MAX_DB_SIZE;
175 else if (strcmp (entry, "logfile") == 0)
177 else if (strcmp (entry, "debug-level") == 0)
179 int level = atoi (arg1);
183 else if (strcmp (entry, "threads") == 0)
186 nthreads = MAX (atol (arg1), lastdb);
188 else if (strcmp (entry, "max-threads") == 0)
190 max_nthreads = MAX (atol (arg1), lastdb);
192 else if (strcmp (entry, "server-user") == 0)
195 error (0, 0, _("Must specify user name for server-user option"));
197 server_user = xstrdup (arg1);
199 else if (strcmp (entry, "stat-user") == 0)
202 error (0, 0, _("Must specify user name for stat-user option"));
205 stat_user = xstrdup (arg1);
207 struct passwd *pw = getpwnam (stat_user);
209 stat_uid = pw->pw_uid;
212 else if (strcmp (entry, "persistent") == 0)
214 int idx = find_db (arg1);
217 if (strcmp (arg2, "no") == 0)
218 dbs[idx].persistent = 0;
219 else if (strcmp (arg2, "yes") == 0)
220 dbs[idx].persistent = 1;
223 else if (strcmp (entry, "shared") == 0)
225 int idx = find_db (arg1);
228 if (strcmp (arg2, "no") == 0)
230 else if (strcmp (arg2, "yes") == 0)
234 else if (strcmp (entry, "reload-count") == 0)
236 if (strcasecmp (arg1, "unlimited") == 0)
237 reload_count = UINT_MAX;
240 unsigned long int count = strtoul (arg1, NULL, 0);
241 if (count > UINT8_MAX - 1)
242 reload_count = UINT_MAX;
244 reload_count = count;
247 else if (strcmp (entry, "paranoia") == 0)
249 if (strcmp (arg1, "no") == 0)
251 else if (strcmp (arg1, "yes") == 0)
254 else if (strcmp (entry, "restart-interval") == 0)
257 restart_interval = atol (arg1);
259 error (0, 0, _("Must specify value for restart-interval option"));
261 else if (strcmp (entry, "auto-propagate") == 0)
263 int idx = find_db (arg1);
266 if (strcmp (arg2, "no") == 0)
267 dbs[idx].propagate = 0;
268 else if (strcmp (arg2, "yes") == 0)
269 dbs[idx].propagate = 1;
273 error (0, 0, _("Unknown option: %s %s %s"), entry, arg1, arg2);
275 while (!feof_unlocked (fp));
279 restart_time = time (NULL) + restart_interval;
281 /* Save the old current workding directory if we are in paranoia
282 mode. We have to change back to it. */
283 oldcwd = get_current_dir_name ();
287 cannot get current working directory: %s; disabling paranoia mode"),
293 /* Enforce sanity. */
294 if (max_nthreads < nthreads)
295 max_nthreads = nthreads;
297 for (cnt = 0; cnt < lastdb; ++cnt)
299 size_t datasize = (sizeof (struct database_pers_head)
300 + roundup (dbs[cnt].suggested_module
301 * sizeof (ref_t), ALIGN)
302 + (dbs[cnt].suggested_module
303 * DEFAULT_DATASIZE_PER_BUCKET));
304 if (datasize > dbs[cnt].max_db_size)
306 error (0, 0, _("maximum file size for %s database too small"),
308 dbs[cnt].max_db_size = datasize;
313 /* Free the buffer. */
315 /* Close configuration file. */
318 return error_message_count != initial_error_message_count;