[master] fix build error when IP_TOS is undefined

diff --git a/lib/isc/unix/net.c b/lib/isc/unix/net.c
index 5676b997a6eeacbc76ec01ce1717266896c3c5f1..187a64bd0645c373f41292dba1e9613338c785ea 100644 (file)
--- a/lib/isc/unix/net.c
+++ b/lib/isc/unix/net.c
@@ -529,6 +529,8 @@ cmsgsend(int s, int level, int type, struct addrinfo *res) {
        cmsgp = msg.msg_control;
        cmsgp->cmsg_level = level;
        cmsgp->cmsg_type = type;
+
+#ifdef IP_TOS
        if (cmsgp->cmsg_type == IP_TOS) {
                cmsgp->cmsg_len = cmsg_len(sizeof(char));
                *(unsigned char*)CMSG_DATA(cmsgp) = dscp;
@@ -536,6 +538,7 @@ cmsgsend(int s, int level, int type, struct addrinfo *res) {
                cmsgp->cmsg_len = cmsg_len(sizeof(dscp));
                memcpy(CMSG_DATA(cmsgp), &dscp, sizeof(dscp));
        }
+#endif /* IP_TOS */
 
        if (sendmsg(s, &msg, 0) < 0) {
                int debug = ISC_LOG_DEBUG(10);
@@ -619,8 +622,11 @@ try_dscp_v4(void) {
                freeaddrinfo(res0);
                return;
        }
+
+#ifdef IP_TOS
        if (setsockopt(s, IPPROTO_IP, IP_TOS, &dscp, sizeof(dscp)) == 0)
                dscp_result |= ISC_NET_DSCPSETV4;
+#endif /* IP_TOS */
 
 #ifdef IP_RECVTOS
        on = 1;