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f267e40f96
Ensure '.' is used to separate octets. If another character is seen reject the string outright and return 0.0.0.0. Signed-off-by: Chris Packham <judge.packham@gmail.com>
44 lines
825 B
C
44 lines
825 B
C
/*
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* Generic network code. Moved from net.c
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*
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* Copyright 1994 - 2000 Neil Russell.
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* Copyright 2000 Roland Borde
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* Copyright 2000 Paolo Scaffardi
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* Copyright 2000-2002 Wolfgang Denk, wd@denx.de
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* Copyright 2009 Dirk Behme, dirk.behme@googlemail.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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struct in_addr string_to_ip(const char *s)
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{
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struct in_addr addr;
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char *e;
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int i;
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addr.s_addr = 0;
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if (s == NULL)
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return addr;
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for (addr.s_addr = 0, i = 0; i < 4; ++i) {
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ulong val = s ? simple_strtoul(s, &e, 10) : 0;
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if (val > 255) {
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addr.s_addr = 0;
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return addr;
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}
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if (i != 3 && *e != '.') {
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addr.s_addr = 0;
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return addr;
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}
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addr.s_addr <<= 8;
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addr.s_addr |= (val & 0xFF);
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if (s) {
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s = (*e) ? e+1 : e;
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}
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}
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addr.s_addr = htonl(addr.s_addr);
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return addr;
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}
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