[U-Boot] [PATCH v2 2/2] lib: net_utils: enforce '.' as octet separator in string_to_ip

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 ---

Changes in v2: - new END

lib/net_utils.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/lib/net_utils.c b/lib/net_utils.c index 8f81e7801033..d06be22849fb 100644 --- a/lib/net_utils.c +++ b/lib/net_utils.c @@ -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) {