libc/socket/gethostbyname.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include <sys/socket.h>
  24 #include <errno.h>
  25
  26 struct hostent *gethostbyname (char *hostname)
  27 {
  28         struct hostent *host = 0;
  29
  30         asm volatile (
  31                 "movl $45, %%eax;"
  32                 "movl %1, %%ebx;"
  33                 "int $0x80;"
  34                 "movl %%eax, %0;" : "=g" (host) : "b" (hostname) : "%eax", "memory");
  35
  36         errno_update ();
  37
  38         return host;
  39 }
  40
  41
  42