git.maemo.org Git - connman/blob - scripts/dhclient-script.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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 <stdlib.h>
  28 #include <string.h>
  29
  30 #include <dbus/dbus.h>
  31
  32 #define DHCLIENT_INTF "org.isc.dhclient"
  33 #define DHCLIENT_PATH "/org/isc/dhclient"
  34
  35 extern char **environ;
  36
  37 static void append(DBusMessageIter *dict, const char *pattern)
  38 {
  39         DBusMessageIter entry;
  40         const char *key, *value;
  41         char *delim;
  42
  43         delim = strchr(pattern, '=');
  44         *delim = '\0';
  45
  46         key = pattern;
  47         value = delim + 1;
  48
  49         dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
  50                                                         NULL, &entry);
  51
  52         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
  53
  54         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &value);
  55
  56         dbus_message_iter_close_container(dict, &entry);
  57 }
  58
  59 int main(int argc, char *argv[])
  60 {
  61         DBusConnection *conn;
  62         DBusError error;
  63         DBusMessage *msg;
  64         DBusMessageIter iter, dict;
  65         dbus_uint32_t pid;
  66         char **envp, *busname, *reason, *interface;
  67
  68         busname = getenv("BUSNAME");
  69
  70         pid = atoi(getenv("pid"));
  71         reason = getenv("reason");
  72         interface = getenv("interface");
  73
  74         dbus_error_init(&error);
  75
  76         conn = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
  77         if (conn == NULL) {
  78                 if (dbus_error_is_set(&error) == TRUE) {
  79                         fprintf(stderr, "%s\n", error.message);
  80                         dbus_error_free(&error);
  81                 } else
  82                         fprintf(stderr, "Failed to get on system bus\n");
  83                 return 0;
  84         }
  85
  86         msg = dbus_message_new_method_call(busname, DHCLIENT_PATH,
  87                                                 DHCLIENT_INTF, "notify");
  88         if (msg == NULL) {
  89                 dbus_connection_unref(conn);
  90                 fprintf(stderr, "Failed to allocate method call\n");
  91                 return 0;
  92         }
  93
  94         dbus_message_set_no_reply(msg, TRUE);
  95
  96         dbus_message_append_args(msg, DBUS_TYPE_UINT32, &pid,
  97                                 DBUS_TYPE_STRING, &reason, DBUS_TYPE_INVALID);
  98
  99         dbus_message_iter_init_append(msg, &iter);
 100
 101         dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
 102                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 103                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_STRING_AS_STRING
 104                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 105
 106         for (envp = environ; envp && *envp; envp++) {
 107                 if (strlen(*envp) < 5)
 108                         continue;
 109
 110                 if (strncmp(*envp, "new_", 4) == 0 ||
 111                                 strncmp(*envp, "old_", 4) == 0 ||
 112                                         strncmp(*envp, "alia", 4) == 0)
 113                         append(&dict, *envp);
 114         }
 115
 116         dbus_message_iter_close_container(&iter, &dict);
 117
 118         if (dbus_connection_send(conn, msg, NULL) == FALSE)
 119                 fprintf(stderr, "Failed to send message\n");
 120
 121         dbus_connection_flush(conn);
 122
 123         dbus_message_unref(msg);
 124
 125         dbus_connection_unref(conn);
 126
 127         return 0;
 128 }