git.maemo.org Git - connman/blob - plugins/resolvfile.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <fcntl.h>
  29 #include <unistd.h>
  30 #include <string.h>
  31 #include <sys/stat.h>
  32
  33 #include <connman/plugin.h>
  34 #include <connman/resolver.h>
  35 #include <connman/log.h>
  36
  37 #include <glib.h>
  38
  39 static int resolvfile_append(const char *interface, const char *domain,
  40                                                         const char *server)
  41 {
  42         char *cmd;
  43         int fd, len, err;
  44
  45         DBG("server %s", server);
  46
  47         fd = open("/etc/resolv.conf", O_RDWR | O_CREAT,
  48                                         S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
  49         if (fd < 0)
  50                 return errno;
  51
  52         err = ftruncate(fd, 0);
  53
  54         cmd = g_strdup_printf("nameserver %s\n", server);
  55
  56         len = write(fd, cmd, strlen(cmd));
  57
  58         g_free(cmd);
  59
  60         close(fd);
  61
  62         return 0;
  63 }
  64
  65 static int resolvfile_remove(const char *interface, const char *domain,
  66                                                         const char *server)
  67 {
  68         DBG("server %s", server);
  69
  70         return 0;
  71 }
  72
  73 static struct connman_resolver resolvfile_resolver = {
  74         .name           = "resolvfile",
  75         .priority       = CONNMAN_RESOLVER_PRIORITY_LOW,
  76         .append         = resolvfile_append,
  77         .remove         = resolvfile_remove,
  78 };
  79
  80 static int resolvfile_init(void)
  81 {
  82         return connman_resolver_register(&resolvfile_resolver);
  83 }
  84
  85 static void resolvfile_exit(void)
  86 {
  87         connman_resolver_unregister(&resolvfile_resolver);
  88 }
  89
  90 CONNMAN_PLUGIN_DEFINE(resolvfile, "Name resolver plugin", VERSION,
  91                                         resolvfile_init, resolvfile_exit)