.in.sin_addr.s_addr = address,
};
_cleanup_close_ int s = -1;
- int r, tos = IPTOS_CLASS_CS6;
+ int r, on = 1, tos = IPTOS_CLASS_CS6;
s = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
if (s < 0)
if (r < 0)
return -errno;
- if (address == INADDR_ANY) {
- int on = 1;
-
- r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
- if (r < 0)
- return -errno;
+ r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+ if (r < 0)
+ return -errno;
+ if (address == INADDR_ANY) {
r = setsockopt(s, IPPROTO_IP, IP_PKTINFO, &on, sizeof(on));
if (r < 0)
return -errno;
r = setsockopt(s, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on));
if (r < 0)
return -errno;
+ } else {
+ r = setsockopt(s, IPPROTO_IP, IP_FREEBIND, &on, sizeof(on));
+ if (r < 0)
+ return -errno;
}
r = bind(s, &src.sa, sizeof(src.in));