diff mbox series

tests/socket-helpers: Only fail socket protocol check if it is really necessary

Message ID 20200908105435.218715-1-thuth@redhat.com
State New
Headers show
Series tests/socket-helpers: Only fail socket protocol check if it is really necessary | expand

Commit Message

Thomas Huth Sept. 8, 2020, 10:54 a.m. UTC 
The tests/test-char test is currently always failing on my system since
socket_can_bind_connect("::1", PF_INET6) fails with EINVAL and thus
socket_check_protocol_support() is returning -1 for an error. But IPv4
is working fine. The logic in socket_check_protocol_support() seems to
be wrong here, if either IPv6 or IPv4 is working, we should not return
an error here. Thus rework the function to only return errors if both
checks failed.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 tests/socket-helpers.c | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)
diff mbox series

Patch

diff --git a/tests/socket-helpers.c b/tests/socket-helpers.c
index 19a51e887e..62a0e0f2d9 100644
--- a/tests/socket-helpers.c
+++ b/tests/socket-helpers.c
@@ -136,22 +136,17 @@  static int socket_can_bind_connect(const char *hostname, int family)
 
 int socket_check_protocol_support(bool *has_ipv4, bool *has_ipv6)
 {
-    *has_ipv4 = *has_ipv6 = false;
+    int errv4, errv6;
 
-    if (socket_can_bind_connect("127.0.0.1", PF_INET) < 0) {
-        if (errno != EADDRNOTAVAIL) {
-            return -1;
-        }
-    } else {
-        *has_ipv4 = true;
-    }
+    errv4 = socket_can_bind_connect("127.0.0.1", PF_INET);
+    *has_ipv4 = (errv4 == 0);
 
-    if (socket_can_bind_connect("::1", PF_INET6) < 0) {
-        if (errno != EADDRNOTAVAIL) {
-            return -1;
-        }
-    } else {
-        *has_ipv6 = true;
+    errv6 = socket_can_bind_connect("::1", PF_INET6);
+    *has_ipv6 = (errv6 == 0);
+
+    if (!*has_ipv4 && !*has_ipv6 &&
+        (errv4 != EADDRNOTAVAIL || errv6 != EADDRNOTAVAIL)) {
+        return -1;
     }
 
     return 0;