mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
300 lines
7.5 KiB
C
300 lines
7.5 KiB
C
/* Copyright (c) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <libintl.h>
|
|
#include <malloc.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdio_ext.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
|
|
#include "dbg_log.h"
|
|
#include "nscd.h"
|
|
|
|
/* Wrapper functions with error checking for standard functions. */
|
|
extern char *xstrdup (const char *s);
|
|
|
|
|
|
/* Names of the databases. */
|
|
const char *dbnames[lastdb] =
|
|
{
|
|
[pwddb] = "passwd",
|
|
[grpdb] = "group",
|
|
[hstdb] = "hosts"
|
|
};
|
|
|
|
int
|
|
nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
|
|
{
|
|
FILE *fp;
|
|
char *line, *cp, *entry, *arg1, *arg2;
|
|
size_t len;
|
|
int cnt;
|
|
|
|
/* Open the configuration file. */
|
|
fp = fopen (fname, "r");
|
|
if (fp == NULL)
|
|
return -1;
|
|
|
|
/* The stream is not used by more than one thread. */
|
|
(void) __fsetlocking (fp, FSETLOCKING_BYCALLER);
|
|
|
|
line = NULL;
|
|
len = 0;
|
|
|
|
do
|
|
{
|
|
ssize_t n = getline (&line, &len, fp);
|
|
if (n < 0)
|
|
break;
|
|
if (line[n - 1] == '\n')
|
|
line[n - 1] = '\0';
|
|
|
|
/* Because the file format does not know any form of quoting we
|
|
can search forward for the next '#' character and if found
|
|
make it terminating the line. */
|
|
*strchrnul (line, '#') = '\0';
|
|
|
|
/* If the line is blank it is ignored. */
|
|
if (line[0] == '\0')
|
|
continue;
|
|
|
|
entry = line;
|
|
while (isspace (*entry) && *entry != '\0')
|
|
++entry;
|
|
cp = entry;
|
|
while (!isspace (*cp) && *cp != '\0')
|
|
++cp;
|
|
arg1 = cp;
|
|
++arg1;
|
|
*cp = '\0';
|
|
if (strlen (entry) == 0)
|
|
dbg_log (_("Parse error: %s"), line);
|
|
while (isspace (*arg1) && *arg1 != '\0')
|
|
++arg1;
|
|
cp = arg1;
|
|
while (!isspace (*cp) && *cp != '\0')
|
|
++cp;
|
|
arg2 = cp;
|
|
++arg2;
|
|
*cp = '\0';
|
|
if (strlen (arg2) > 0)
|
|
{
|
|
while (isspace (*arg2) && *arg2 != '\0')
|
|
++arg2;
|
|
cp = arg2;
|
|
while (!isspace (*cp) && *cp != '\0')
|
|
++cp;
|
|
*cp = '\0';
|
|
}
|
|
|
|
if (strcmp (entry, "positive-time-to-live") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
dbs[cnt].postimeout = atol (arg2);
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "negative-time-to-live") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
dbs[cnt].negtimeout = atol (arg2);
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "suggested-size") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
dbs[cnt].suggested_module = atol (arg2);
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "enable-cache") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
if (strcmp (arg2, "no") == 0)
|
|
dbs[cnt].enabled = 0;
|
|
else if (strcmp (arg2, "yes") == 0)
|
|
dbs[cnt].enabled = 1;
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "check-files") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
if (strcmp (arg2, "no") == 0)
|
|
dbs[cnt].check_file = 0;
|
|
else if (strcmp (arg2, "yes") == 0)
|
|
dbs[cnt].check_file = 1;
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "logfile") == 0)
|
|
set_logfile (arg1);
|
|
else if (strcmp (entry, "debug-level") == 0)
|
|
{
|
|
int level = atoi (arg1);
|
|
if (level > 0)
|
|
debug_level = level;
|
|
}
|
|
else if (strcmp (entry, "threads") == 0)
|
|
{
|
|
if (nthreads == -1)
|
|
nthreads = MAX (atol (arg1), lastdb);
|
|
}
|
|
else if (strcmp (entry, "max-threads") == 0)
|
|
{
|
|
max_nthreads = MAX (atol (arg1), lastdb);
|
|
}
|
|
else if (strcmp (entry, "server-user") == 0)
|
|
{
|
|
if (!arg1)
|
|
dbg_log (_("Must specify user name for server-user option"));
|
|
else
|
|
server_user = xstrdup (arg1);
|
|
}
|
|
else if (strcmp (entry, "stat-user") == 0)
|
|
{
|
|
if (arg1 == NULL)
|
|
dbg_log (_("Must specify user name for stat-user option"));
|
|
else
|
|
{
|
|
stat_user = xstrdup (arg1);
|
|
|
|
struct passwd *pw = getpwnam (stat_user);
|
|
if (pw != NULL)
|
|
stat_uid = pw->pw_uid;
|
|
}
|
|
}
|
|
else if (strcmp (entry, "persistent") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
if (strcmp (arg2, "no") == 0)
|
|
dbs[cnt].persistent = 0;
|
|
else if (strcmp (arg2, "yes") == 0)
|
|
dbs[cnt].persistent = 1;
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "shared") == 0)
|
|
{
|
|
for (cnt = 0; cnt < lastdb; ++cnt)
|
|
if (strcmp (arg1, dbnames[cnt]) == 0)
|
|
{
|
|
if (strcmp (arg2, "no") == 0)
|
|
dbs[cnt].shared = 0;
|
|
else if (strcmp (arg2, "yes") == 0)
|
|
dbs[cnt].shared = 1;
|
|
break;
|
|
}
|
|
if (cnt == lastdb)
|
|
dbg_log ("database %s is not supported\n", arg1);
|
|
}
|
|
else if (strcmp (entry, "reload-count") == 0)
|
|
{
|
|
if (strcasecmp (arg1, "unlimited") == 0)
|
|
reload_count = UINT_MAX;
|
|
else
|
|
{
|
|
unsigned int count = strtoul (arg1, NULL, 0);
|
|
if (count > UINT8_MAX - 1)
|
|
reload_count = UINT_MAX;
|
|
else if (count >= 0)
|
|
reload_count = count;
|
|
else
|
|
dbg_log (_("invalid value for 'reload-count': %u"), count);
|
|
}
|
|
}
|
|
else if (strcmp (entry, "paranoia") == 0)
|
|
{
|
|
if (strcmp (arg1, "no") == 0)
|
|
paranoia = 0;
|
|
else if (strcmp (arg1, "yes") == 0)
|
|
paranoia = 1;
|
|
}
|
|
else if (strcmp (entry, "restart-interval") == 0)
|
|
{
|
|
if (arg1 != NULL)
|
|
restart_interval = atol (arg1);
|
|
else
|
|
dbg_log (_("Must specify value for restart-interval option"));
|
|
}
|
|
else
|
|
dbg_log (_("Unknown option: %s %s %s"), entry, arg1, arg2);
|
|
}
|
|
while (!feof_unlocked (fp));
|
|
|
|
if (paranoia)
|
|
{
|
|
restart_time = time (NULL) + restart_interval;
|
|
|
|
/* Save the old current workding directory if we are in paranoia
|
|
mode. We have to change back to it. */
|
|
oldcwd = get_current_dir_name ();
|
|
if (oldcwd == NULL)
|
|
{
|
|
dbg_log (_("\
|
|
cannot get current working directory: %s; disabling paranoia mode"),
|
|
strerror (errno));
|
|
paranoia = 0;
|
|
}
|
|
}
|
|
|
|
/* Enforce sanity. */
|
|
if (max_nthreads < nthreads)
|
|
max_nthreads = nthreads;
|
|
|
|
/* Free the buffer. */
|
|
free (line);
|
|
/* Close configuration file. */
|
|
fclose (fp);
|
|
|
|
return 0;
|
|
}
|