Fix test failure when no IPv6 is avail

When the system doesn't have IPv6 available (e.g. not built into the
kernel or the module isn't loaded), you can not create an IPv6 socket.
The test determines earlier on that IPv6 isn't available then goes and
creates a socket. This makes socket creation conditional on IPv6
availability.
(cherry picked from commit faffe26909d8e5cde7e80e5a8f33296ed56dcfc7)

diff --git a/tests/virnetsockettest.c b/tests/virnetsockettest.c
index 204113e418051d1deef7f5c3dff98ed6fc4a7c45..33c6fd43271cbb161a567fbde331bdf69e970351 100644 (file)
--- a/tests/virnetsockettest.c
+++ b/tests/virnetsockettest.c
@@ -90,11 +90,13 @@ checkProtocols(bool *hasIPv4, bool *hasIPv6,
         if ((s4 = socket(AF_INET, SOCK_STREAM, 0)) < 0)
             goto cleanup;
 
-        if ((s6 = socket(AF_INET6, SOCK_STREAM, 0)) < 0)
-            goto cleanup;
+        if (*hasIPv6) {
+            if ((s6 = socket(AF_INET6, SOCK_STREAM, 0)) < 0)
+                goto cleanup;
 
-        if (setsockopt(s6, IPPROTO_IPV6, IPV6_V6ONLY, &only, sizeof(only)) < 0)
-            goto cleanup;
+            if (setsockopt(s6, IPPROTO_IPV6, IPV6_V6ONLY, &only, sizeof(only)) < 0)
+                goto cleanup;
+        }
 
         memset(&in4, 0, sizeof(in4));
         memset(&in6, 0, sizeof(in6));
@@ -114,13 +116,16 @@ checkProtocols(bool *hasIPv4, bool *hasIPv6,
             }
             goto cleanup;
         }
-        if (bind(s6, (struct sockaddr *)&in6, sizeof(in6)) < 0) {
-            if (errno == EADDRINUSE) {
-                VIR_FORCE_CLOSE(s4);
-                VIR_FORCE_CLOSE(s6);
-                continue;
+
+        if (*hasIPv6) {
+            if (bind(s6, (struct sockaddr *)&in6, sizeof(in6)) < 0) {
+                if (errno == EADDRINUSE) {
+                    VIR_FORCE_CLOSE(s4);
+                    VIR_FORCE_CLOSE(s6);
+                    continue;
+                }
+                goto cleanup;
             }
-            goto cleanup;
         }
 
         *freePort = BASE_PORT + i;