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lib: net_utils: enforce '.' as octet separator in string_to_ip

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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>
This commit is contained in:
Chris Packham 2017-01-04 13:36:26 +13:00 committed by Tom Rini
parent d921ed9a2a
commit f267e40f96
1 changed files with 4 additions and 0 deletions
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4
lib/net_utils.c
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@ -28,6 +28,10 @@ struct in_addr string_to_ip(const char *s)
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) {