umdnsd: Replace strerror(errno) with %m.

Saves 352 bytes under glibc. No functional difference.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

diff --git a/interface.c b/interface.c
index 7f814d2..9c5b048 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -353,7 +353,7 @@ interface_mcast_setup4(struct interface *iface)
        setsockopt(fd, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mreq, sizeof(mreq));
 
        if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0) {
-               fprintf(stderr, "failed to join multicast group: %s\n", strerror(errno));
+               fprintf(stderr, "failed to join multicast group: %m\n");
                close(fd);
                fd = -1;
                return -1;
@@ -387,7 +387,7 @@ interface_socket_setup6(struct interface *iface)
 
        setsockopt(fd, IPPROTO_IPV6, IPV6_LEAVE_GROUP, &mreq, sizeof(mreq));
        if (setsockopt(fd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0) {
-               fprintf(stderr, "failed to join multicast group: %s\n", strerror(errno));
+               fprintf(stderr, "failed to join multicast group: %m\n");
                close(fd);
                fd = -1;
                return -1;
@@ -409,7 +409,7 @@ reconnect_socket4(struct uloop_timeout *timeout)
        iface->fd.fd = usock(USOCK_UDP | USOCK_SERVER | USOCK_NONBLOCK | USOCK_IPV4ONLY,
                (iface->multicast) ? (iface->mcast_addr) : (iface->v4_addrs), "5353");
        if (iface->fd.fd < 0) {
-               fprintf(stderr, "failed to add listener %s: %s\n", iface->mcast_addr, strerror(errno));
+               fprintf(stderr, "failed to add listener %s: %m\n", iface->mcast_addr);
                goto retry;
        }
 
@@ -456,7 +456,7 @@ reconnect_socket6(struct uloop_timeout *timeout)
        snprintf(mcast_addr, sizeof(mcast_addr), "%s%%%s", (iface->multicast) ? (iface->mcast_addr) : (iface->v6_addrs), iface->name);
        iface->fd.fd = usock(USOCK_UDP | USOCK_SERVER | USOCK_NONBLOCK | USOCK_IPV6ONLY, mcast_addr, "5353");
        if (iface->fd.fd < 0) {
-               fprintf(stderr, "failed to add listener %s: %s\n", mcast_addr, strerror(errno));
+               fprintf(stderr, "failed to add listener %s: %m\n", mcast_addr);
                goto retry;
        }