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/* 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 <malloc.h>
#include <pwd.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
#include <libintl.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, "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)
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, "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
dbg_log (_("Unknown option: %s %s %s"), entry, arg1, arg2);
}
while (!feof_unlocked (fp));
/* Free the buffer. */
free (line);
/* Close configuration file. */
fclose (fp);
return 0;
}
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