net_utils.c
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/*
* Generic network code. Moved from net.c
*
* Copyright 1994 - 2000 Neil Russell.
* Copyright 2000 Roland Borde
* Copyright 2000 Paolo Scaffardi
* Copyright 2000-2002 Wolfgang Denk, wd@denx.de
* Copyright 2009 Dirk Behme, dirk.behme@googlemail.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
struct in_addr string_to_ip(const char *s)
{
struct in_addr addr;
char *e;
int i;
addr.s_addr = 0;
if (s == NULL)
return addr;
for (addr.s_addr = 0, i = 0; i < 4; ++i) {
ulong val = s ? simple_strtoul(s, &e, 10) : 0;
if (val > 255) {
addr.s_addr = 0;
return addr;
}
if (i != 3 && *e != '.') {
addr.s_addr = 0;
return addr;
}
addr.s_addr <<= 8;
addr.s_addr |= (val & 0xFF);
if (s) {
s = (*e) ? e+1 : e;
}
}
addr.s_addr = htonl(addr.s_addr);
return addr;
}