LXR uboot/lib/net

   1/*
   2 * Generic network code. Moved from net.c
   3 *
   4 * Copyright 1994 - 2000 Neil Russell.
   5 * Copyright 2000 Roland Borde
   6 * Copyright 2000 Paolo Scaffardi
   7 * Copyright 2000-2002 Wolfgang Denk, wd@denx.de
   8 * Copyright 2009 Dirk Behme, dirk.behme@googlemail.com
   9 *
  10 * See file CREDITS for list of people who contributed to this
  11 * project.
  12 *
  13 * This program is free software; you can redistribute it and/or
  14 * modify it under the terms of the GNU General Public License as
  15 * published by the Free Software Foundation; either version 2 of
  16 * the License, or (at your option) any later version.
  17 *
  18 * This program is distributed in the hope that it will be useful,
  19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 * GNU General Public License for more details.
  22 *
  23 * You should have received a copy of the GNU General Public License
  24 * along with this program; if not, write to the Free Software
  25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  26 * MA 02111-1307 USA
  27 */
  28
  29#include <common.h>
  30
  31IPaddr_t string_to_ip(const char *s)
  32{
  33        IPaddr_t addr;
  34        char *e;
  35        int i;
  36
  37        if (s == NULL)
  38                return(0);
  39
  40        for (addr=0, i=0; i<4; ++i) {
  41                ulong val = s ? simple_strtoul(s, &e, 10) : 0;
  42                addr <<= 8;
  43                addr |= (val & 0xFF);
  44                if (s) {
  45                        s = (*e) ? e+1 : e;
  46                }
  47        }
  48
  49        return (htonl(addr));
  50}
  51