[PULL 3/7] qemu-nbd: Use qcrypto_tls_creds_check_endpoint()

["Daniel P. Berrangé" <berrange@redhat.com>]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Avoid accessing QCryptoTLSCreds internals by using
the qcrypto_tls_creds_check_endpoint() helper.

Tested-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 qemu-nbd.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/qemu-nbd.c b/qemu-nbd.c
index 93ef4e288f..26ffbf15af 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -43,6 +43,7 @@
 #include "io/channel-socket.h"
 #include "io/net-listener.h"
 #include "crypto/init.h"
+#include "crypto/tlscreds.h"
 #include "trace/control.h"
 #include "qemu-version.h"
 
@@ -422,18 +423,12 @@ static QCryptoTLSCreds *nbd_get_tls_creds(const char *id, bool list,
         return NULL;
     }
 
-    if (list) {
-        if (creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
-            error_setg(errp,
-                       "Expecting TLS credentials with a client endpoint");
-            return NULL;
-        }
-    } else {
-        if (creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
-            error_setg(errp,
-                       "Expecting TLS credentials with a server endpoint");
-            return NULL;
-        }
+    if (!qcrypto_tls_creds_check_endpoint(creds,
+                                          list
+                                          ? QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT
+                                          : QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
+                                          errp)) {
+        return NULL;
     }
     object_ref(obj);
     return creds;
-- 
2.31.1