1 /* Copyright (c) 1998-2013 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, see <http://www.gnu.org/licenses/>. */
25 #include <stdio_ext.h>
29 #include <sys/param.h>
30 #include <sys/types.h>
35 /* Wrapper functions with error checking for standard functions. */
36 extern char *xstrdup (const char *s);
39 /* Names of the databases. */
40 const char *const dbnames[lastdb] =
45 [servdb] = "services",
46 [netgrdb] = "netgroup"
51 find_db (const char *name)
53 for (int cnt = 0; cnt < lastdb; ++cnt)
54 if (strcmp (name, dbnames[cnt]) == 0)
57 error (0, 0, _("database %s is not supported"), name);
62 nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
65 char *line, *cp, *entry, *arg1, *arg2;
68 const unsigned int initial_error_message_count = error_message_count;
70 /* Open the configuration file. */
71 fp = fopen (fname, "r");
75 /* The stream is not used by more than one thread. */
76 (void) __fsetlocking (fp, FSETLOCKING_BYCALLER);
83 ssize_t n = getline (&line, &len, fp);
86 if (line[n - 1] == '\n')
89 /* Because the file format does not know any form of quoting we
90 can search forward for the next '#' character and if found
91 make it terminating the line. */
92 *strchrnul (line, '#') = '\0';
94 /* If the line is blank it is ignored. */
99 while (isspace (*entry) && *entry != '\0')
102 while (!isspace (*cp) && *cp != '\0')
107 if (strlen (entry) == 0)
108 error (0, 0, _("Parse error: %s"), line);
109 while (isspace (*arg1) && *arg1 != '\0')
112 while (!isspace (*cp) && *cp != '\0')
117 if (strlen (arg2) > 0)
119 while (isspace (*arg2) && *arg2 != '\0')
122 while (!isspace (*cp) && *cp != '\0')
127 if (strcmp (entry, "positive-time-to-live") == 0)
129 int idx = find_db (arg1);
131 dbs[idx].postimeout = atol (arg2);
133 else if (strcmp (entry, "negative-time-to-live") == 0)
135 int idx = find_db (arg1);
137 dbs[idx].negtimeout = atol (arg2);
139 else if (strcmp (entry, "suggested-size") == 0)
141 int idx = find_db (arg1);
143 dbs[idx].suggested_module
144 = atol (arg2) ?: DEFAULT_SUGGESTED_MODULE;
146 else if (strcmp (entry, "enable-cache") == 0)
148 int idx = find_db (arg1);
151 if (strcmp (arg2, "no") == 0)
152 dbs[idx].enabled = 0;
153 else if (strcmp (arg2, "yes") == 0)
154 dbs[idx].enabled = 1;
157 else if (strcmp (entry, "check-files") == 0)
159 int idx = find_db (arg1);
162 if (strcmp (arg2, "no") == 0)
163 dbs[idx].check_file = 0;
164 else if (strcmp (arg2, "yes") == 0)
165 dbs[idx].check_file = 1;
168 else if (strcmp (entry, "max-db-size") == 0)
170 int idx = find_db (arg1);
172 dbs[idx].max_db_size = atol (arg2) ?: DEFAULT_MAX_DB_SIZE;
174 else if (strcmp (entry, "logfile") == 0)
176 else if (strcmp (entry, "debug-level") == 0)
178 int level = atoi (arg1);
182 else if (strcmp (entry, "threads") == 0)
185 nthreads = MAX (atol (arg1), lastdb);
187 else if (strcmp (entry, "max-threads") == 0)
189 max_nthreads = MAX (atol (arg1), lastdb);
191 else if (strcmp (entry, "server-user") == 0)
194 error (0, 0, _("Must specify user name for server-user option"));
196 server_user = xstrdup (arg1);
198 else if (strcmp (entry, "stat-user") == 0)
201 error (0, 0, _("Must specify user name for stat-user option"));
204 stat_user = xstrdup (arg1);
206 struct passwd *pw = getpwnam (stat_user);
208 stat_uid = pw->pw_uid;
211 else if (strcmp (entry, "persistent") == 0)
213 int idx = find_db (arg1);
216 if (strcmp (arg2, "no") == 0)
217 dbs[idx].persistent = 0;
218 else if (strcmp (arg2, "yes") == 0)
219 dbs[idx].persistent = 1;
222 else if (strcmp (entry, "shared") == 0)
224 int idx = find_db (arg1);
227 if (strcmp (arg2, "no") == 0)
229 else if (strcmp (arg2, "yes") == 0)
233 else if (strcmp (entry, "reload-count") == 0)
235 if (strcasecmp (arg1, "unlimited") == 0)
236 reload_count = UINT_MAX;
239 unsigned long int count = strtoul (arg1, NULL, 0);
240 if (count > UINT8_MAX - 1)
241 reload_count = UINT_MAX;
243 reload_count = count;
246 else if (strcmp (entry, "paranoia") == 0)
248 if (strcmp (arg1, "no") == 0)
250 else if (strcmp (arg1, "yes") == 0)
253 else if (strcmp (entry, "restart-interval") == 0)
256 restart_interval = atol (arg1);
258 error (0, 0, _("Must specify value for restart-interval option"));
260 else if (strcmp (entry, "auto-propagate") == 0)
262 int idx = find_db (arg1);
265 if (strcmp (arg2, "no") == 0)
266 dbs[idx].propagate = 0;
267 else if (strcmp (arg2, "yes") == 0)
268 dbs[idx].propagate = 1;
272 error (0, 0, _("Unknown option: %s %s %s"), entry, arg1, arg2);
274 while (!feof_unlocked (fp));
278 restart_time = time (NULL) + restart_interval;
280 /* Save the old current workding directory if we are in paranoia
281 mode. We have to change back to it. */
282 oldcwd = get_current_dir_name ();
286 cannot get current working directory: %s; disabling paranoia mode"),
292 /* Enforce sanity. */
293 if (max_nthreads < nthreads)
294 max_nthreads = nthreads;
296 for (cnt = 0; cnt < lastdb; ++cnt)
298 size_t datasize = (sizeof (struct database_pers_head)
299 + roundup (dbs[cnt].suggested_module
300 * sizeof (ref_t), ALIGN)
301 + (dbs[cnt].suggested_module
302 * DEFAULT_DATASIZE_PER_BUCKET));
303 if (datasize > dbs[cnt].max_db_size)
305 error (0, 0, _("maximum file size for %s database too small"),
307 dbs[cnt].max_db_size = datasize;
312 /* Free the buffer. */
314 /* Close configuration file. */
317 return error_message_count != initial_error_message_count;