- /* get a socket */
- sock = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
- if (sock < 0) {
- printf("sockconn cannot create socket\n");
- return sock;
+ /* loop on possible addresses */
+ save = addr;
+ while (addr != NULL) {
+ /* get a socket */
+ sock = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
+ if (sock < 0) {
+ if (addr->ai_next == NULL) {
+ addr=addr->ai_next;
+ continue;
+ } else {
+ printf("sockconn cannot create socket\n");
+ return sock;
+ }
+ }
+ /* connect the socket */
+ res = connect(sock, addr->ai_addr, addr->ai_addrlen);
+ if (res < 0) {
+ if (addr->ai_next == NULL) {
+ close(sock);
+ addr=addr->ai_next;
+ continue;
+ } else {
+ printf("sockconn cannot connect socket\n");
+ return res;
+ }
+ }