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-rw-r--r--extensions/libipt_mport.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/extensions/libipt_mport.c b/extensions/libipt_mport.c
index 38474cde..f2dfd1e1 100644
--- a/extensions/libipt_mport.c
+++ b/extensions/libipt_mport.c
@@ -47,8 +47,9 @@ service_to_port(const char *name, const char *proto)
static u_int16_t
parse_port(const char *port, const char *proto)
{
- int portnum;
- if ((portnum = string_to_number(port, 0, 65535)) != -1 ||
+ unsigned int portnum;
+
+ if (portnum = string_to_number(port, 0, 65535, &portnum) != -1 ||
(portnum = service_to_port(port, proto)) != -1)
return (u_int16_t)portnum;