- int rc, fd;
- const char *service, *host, *api;
- struct addrinfo hint, *rai, *iai;
-
- /* scan the uri */
- api = strrchr(path, '/');
- service = strrchr(path, ':');
- if (api == NULL || service == NULL || api < service) {
- errno = EINVAL;
- return -1;
- }
- host = strndupa(path, service++ - path);
- service = strndupa(service, api - service);
-
- /* get addr */
- memset(&hint, 0, sizeof hint);
- hint.ai_family = AF_INET;
- hint.ai_socktype = SOCK_STREAM;
- rc = getaddrinfo(host, service, &hint, &rai);
- if (rc != 0) {
- errno = EINVAL;
- return -1;
- }
-
- /* get the socket */
- iai = rai;
- while (iai != NULL) {
- fd = socket(iai->ai_family, iai->ai_socktype, iai->ai_protocol);
- if (fd >= 0) {
- if (server) {
- rc = bind(fd, iai->ai_addr, iai->ai_addrlen);
- } else {
- rc = connect(fd, iai->ai_addr, iai->ai_addrlen);
- }
- if (rc == 0) {
- freeaddrinfo(rai);
- return fd;
- }
- close(fd);
- }
- iai = iai->ai_next;
- }
- freeaddrinfo(rai);
- return -1;