socket: Make sure to use socket_close() really everywhere
diff --git a/common/socket.c b/common/socket.c
index bbc3de2..1a7fe8d 100644
--- a/common/socket.c
+++ b/common/socket.c
@@ -272,7 +272,7 @@
 
 		if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(int)) == -1) {
 			perror("setsockopt()");
-			close(sfd);
+			socket_close(sfd);
 			continue;
 		}