kernel/core/net/hostname.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program 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
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <system.h>
  21 #include <stdlib.h>
  22 #include <config.h>
  23
  24 /* global hostname */
  25 static char *net_hostname;
  26
  27 unsigned hostname_set (const char *name)
  28 {
  29         if (net_hostname)
  30                 kfree (net_hostname);
  31
  32         unsigned l = strlen (name);
  33
  34         net_hostname = (char *) kmalloc (sizeof (char) * (l + 1));
  35
  36         if (!net_hostname)
  37                 return 0;
  38
  39         memcpy (net_hostname, name, l);
  40         net_hostname[l] = '\0';
  41
  42         return 1;
  43 }
  44
  45 char *hostname_get ()
  46 {
  47         if (!net_hostname)
  48                 return 0;
  49
  50         return net_hostname;
  51 }
  52
  53 unsigned init_hostname ()
  54 {
  55         net_hostname = 0;
  56
  57         return hostname_set (CONFIG_HOSTNAME);
  58 }