lib/net_utils.c

   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  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <common.h>
  14
  15 IPaddr_t string_to_ip(const char *s)
  16 {
  17         IPaddr_t addr;
  18         char *e;
  19         int i;
  20
  21         if (s == NULL)
  22                 return(0);
  23
  24         for (addr=0, i=0; i<4; ++i) {
  25                 ulong val = s ? simple_strtoul(s, &e, 10) : 0;
  26                 addr <<= 8;
  27                 addr |= (val & 0xFF);
  28                 if (s) {
  29                         s = (*e) ? e+1 : e;
  30                 }
  31         }
  32
  33         return (htonl(addr));
  34 }