nscd/nscd_conf.c

   1 /* Copyright (c) 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA. */
  19
  20 #include <ctype.h>
  21 #include <malloc.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <sys/param.h>
  26 #include <sys/types.h>
  27
  28 #include "dbg_log.h"
  29 #include "nscd.h"
  30
  31 /* Names of the databases.  */
  32 const char *dbnames[lastdb] =
  33 {
  34   [pwddb] = "passwd",
  35   [grpdb] = "group",
  36   [hstdb] = "hosts"
  37 };
  38
  39 int
  40 nscd_parse_file (const char *fname, struct database dbs[lastdb])
  41 {
  42   FILE *fp;
  43   char *line, *cp, *entry, *arg1, *arg2;
  44   size_t len;
  45   int cnt;
  46
  47   /* Open the configuration file.  */
  48   fp = fopen (fname, "r");
  49   if (fp == NULL)
  50     return -1;
  51
  52   line = NULL;
  53   len = 0;
  54
  55   do
  56     {
  57       ssize_t n = getline (&line, &len, fp);
  58       if (n < 0)
  59         break;
  60       if (line[n - 1] == '\n')
  61         line[n - 1] = '\0';
  62
  63       /* Because the file format does not know any form of quoting we
  64          can search forward for the next '#' character and if found
  65          make it terminating the line.  */
  66       *strchrnul (line, '#') = '\0';
  67
  68       /* If the line is blank it is ignored.  */
  69       if (line[0] == '\0')
  70         continue;
  71
  72       entry = line;
  73       while (isspace (*entry) && *entry != '\0')
  74         ++entry;
  75       cp = entry;
  76       while (!isspace (*cp) && *cp != '\0')
  77         ++cp;
  78       arg1 = cp;
  79       ++arg1;
  80       *cp = '\0';
  81       if (strlen (entry) == 0)
  82         dbg_log (_("Parse error: %s"), line);
  83       while (isspace (*arg1) && *arg1 != '\0')
  84         ++arg1;
  85       cp = arg1;
  86       while (!isspace (*cp) && *cp != '\0')
  87         ++cp;
  88       arg2 = cp;
  89       ++arg2;
  90       *cp = '\0';
  91       if (strlen (arg2) > 0)
  92         {
  93           while (isspace (*arg2) && *arg2 != '\0')
  94             ++arg2;
  95           cp = arg2;
  96           while (!isspace (*cp) && *cp != '\0')
  97             ++cp;
  98           *cp = '\0';
  99         }
 100
 101       if (strcmp (entry, "positive-time-to-live") == 0)
 102         {
 103           for (cnt = 0; cnt < lastdb; ++cnt)
 104             if (strcmp (arg1, dbnames[cnt]) == 0)
 105               {
 106                 dbs[cnt].postimeout = atol (arg2);
 107                 break;
 108               }
 109           if (cnt == lastdb)
 110             dbg_log ("server %s is not supported\n", arg1);
 111         }
 112       else if (strcmp (entry, "negative-time-to-live") == 0)
 113         {
 114           for (cnt = 0; cnt < lastdb; ++cnt)
 115             if (strcmp (arg1, dbnames[cnt]) == 0)
 116               {
 117                 dbs[cnt].negtimeout = atol (arg2);
 118                 break;
 119               }
 120           if (cnt == lastdb)
 121             dbg_log ("server %s is not supported\n", arg1);
 122         }
 123       else if (strcmp (entry, "suggested-size") == 0)
 124         {
 125           for (cnt = 0; cnt < lastdb; ++cnt)
 126             if (strcmp (arg1, dbnames[cnt]) == 0)
 127               {
 128                 dbs[cnt].module = atol (arg2);
 129                 break;
 130               }
 131           if (cnt == lastdb)
 132             dbg_log ("server %s is not supported\n", arg1);
 133         }
 134       else if (strcmp (entry, "enable-cache") == 0)
 135         {
 136           for (cnt = 0; cnt < lastdb; ++cnt)
 137             if (strcmp (arg1, dbnames[cnt]) == 0)
 138               {
 139                 if (strcmp (arg2, "no") == 0)
 140                   dbs[cnt].enabled = 0;
 141                 else if (strcmp (arg2, "yes") == 0)
 142                   dbs[cnt].enabled = 1;
 143                 break;
 144               }
 145           if (cnt == lastdb)
 146             dbg_log ("server %s is not supported\n", arg1);
 147         }
 148       else if (strcmp (entry, "check-files") == 0)
 149         {
 150           for (cnt = 0; cnt < lastdb; ++cnt)
 151             if (strcmp (arg1, dbnames[cnt]) == 0)
 152               {
 153                 if (strcmp (arg2, "no") == 0)
 154                   dbs[cnt].check_file = 0;
 155                 else if (strcmp (arg2, "yes") == 0)
 156                   dbs[cnt].check_file = 1;
 157                 break;
 158               }
 159           if (cnt == lastdb)
 160             dbg_log ("server %s is not supported\n", arg1);
 161         }
 162       else if (strcmp (entry, "logfile") == 0)
 163         {
 164           if (!set_logfile (arg1))
 165             dbg_log (_("Could not create log file \"%s\""), arg1);
 166         }
 167       else if (strcmp (entry, "debug-level") == 0)
 168         {
 169           int level = atoi (arg1);
 170           if (level > 0)
 171             debug_level = level;
 172         }
 173       else if (strcmp (entry, "threads") == 0)
 174         {
 175           if (nthreads == -1)
 176             nthreads = MAX (atol (arg1), lastdb);
 177         }
 178       else
 179         dbg_log (_("Unknown option: %s %s %s"), entry, arg1, arg2);
 180     }
 181   while (!feof (fp));
 182
 183   /* Free the buffer.  */
 184   free (line);
 185   /* Close configuration file.  */
 186   fclose (fp);
 187
 188   return 0;
 189 }