http: add support for specifying ipv4/ipv6 preference

[project/uclient.git] / uclient-http.c

diff --git a/uclient-http.c b/uclient-http.c
index 5e5f996..f080e41 100644 (file)
--- a/uclient-http.c
+++ b/uclient-http.c
@@ -15,6 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
+#include <sys/socket.h>
 #include <stdio.h>
 #include <ctype.h>
 #include <unistd.h>
@@ -90,6 +91,8 @@ struct uclient_http {
        long read_chunked;
        long content_length;
 
+       int usock_flags;
+
        uint32_t nc;
 
        struct blob_buf headers;
@@ -120,7 +123,7 @@ static int uclient_do_connect(struct uclient_http *uh, const char *port)
 
        memset(&uh->uc.remote_addr, 0, sizeof(uh->uc.remote_addr));
 
-       fd = usock_inet(USOCK_TCP, uh->uc.url->host, port, &uh->uc.remote_addr);
+       fd = usock_inet(USOCK_TCP | uh->usock_flags, uh->uc.url->host, port, &uh->uc.remote_addr);
        if (fd < 0)
                return -1;
 
@@ -1129,6 +1132,28 @@ int uclient_http_set_ssl_ctx(struct uclient *cl, const struct ustream_ssl_ops *o
        return 0;
 }
 
+int uclient_http_set_address_family(struct uclient *cl, int af)
+{
+       struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
+
+       if (cl->backend != &uclient_backend_http)
+               return -1;
+
+       switch (af) {
+       case AF_INET:
+               uh->usock_flags = USOCK_IPV4ONLY;
+               break;
+       case AF_INET6:
+               uh->usock_flags = USOCK_IPV6ONLY;
+               break;
+       default:
+               uh->usock_flags = 0;
+               break;
+       }
+
+       return 0;
+}
+
 const struct uclient_backend uclient_backend_http = {
        .prefix = uclient_http_prefix,