> Commit 33ab38d9 (meta-flow: Simplify mf_from_ofp_port_string())
> inadvertently removed a check for minus sign at the beginning of a
> port number string introduced by commit 05dddba (meta-flow: Don't
> allow negative port numbers). This check is still needed, so put it
> back, but to ofputil_port_from_string() this time.
>
> Signed-off-by: Jarno Rajahalme <jrajaha...@nicira.com>
Reviewed-by: YAMAMOTO Takashi <yamam...@valinux.co.jp>
> ---
> lib/ofp-util.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/lib/ofp-util.c b/lib/ofp-util.c
> index af2d853..a990f46 100644
> --- a/lib/ofp-util.c
> +++ b/lib/ofp-util.c
> @@ -5394,8 +5394,12 @@ ofputil_port_to_ofp11(ofp_port_t ofp10_port)
> bool
> ofputil_port_from_string(const char *s, ofp_port_t *portp)
> {
> - uint32_t port32;
> + unsigned int port32; /* int is at least 32 bits wide. */
>
> + if (*s == '-') {
> + VLOG_WARN("Negative values are not supported as port numbers.");
> + return false;
> + }
> *portp = 0;
> if (str_to_uint(s, 10, &port32)) {
> if (port32 < ofp_to_u16(OFPP_MAX)) {
> --
> 1.7.10.4
>
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