Correct return value for comparison (CID #1655308)

diff --git a/src/listen/dhcpv4/proto_dhcpv4_udp.c b/src/listen/dhcpv4/proto_dhcpv4_udp.c
index 0429927543e80660f5ab3be880578be10f3aefb3..2a00c624f17e315b9ba226f44d18cfabe4ef8633 100644 (file)
--- a/src/listen/dhcpv4/proto_dhcpv4_udp.c
+++ b/src/listen/dhcpv4/proto_dhcpv4_udp.c
@@ -153,7 +153,7 @@ fr_dict_attr_autoload_t proto_dhcpv4_udp_dict_attr[] = {
 static int8_t dhcpv4_pcap_cmp(void const *a, void const *b)
 {
        proto_dhcpv4_pcap_t const *one = a, *two = b;
-       return strcmp(one->interface, two->interface);
+       return CMP(strcmp(one->interface, two->interface), 0);
 }
 
 static proto_dhcpv4_pcap_t *dhcpv4_pcap_find(proto_dhcpv4_udp_thread_t *thread, char const *interface)