lib: Fix flow_accept without openssl

DH key creation was returning -ECRYPT if opennssl is not installed,
instead of success (0).

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

2 files changed, 7 insertions, 5 deletions

diff --git a/src/lib/crypt.c b/src/lib/crypt.c
index cda3cb46..06cc1749 100644
--- a/src/lib/crypt.c
+++ b/src/lib/crypt.c
@@ -365,8 +365,9 @@ static int crypt_dh_pkp_create(void **   pkp,
         (void) pk;
 
         memset(pk, 0, MSGBUFSZ);
+        *pkp = NULL;
 
-        return -ECRYPT;
+        return 0;
 #endif
 }
 
diff --git a/src/lib/dev.c b/src/lib/dev.c
index a6be762b..0a783bf7 100644
--- a/src/lib/dev.c
+++ b/src/lib/dev.c
@@ -552,10 +552,11 @@ int flow_accept(qosspec_t *             qs,
                 err = -ECRYPT;
                 goto fail_crypt_pkp;
         }
-
-        msg.has_pk  = true;
-        msg.pk.data = buf;
-        msg.pk.len  = (uint32_t) key_len;
+        if (key_len > 0) {
+                msg.has_pk  = true;
+                msg.pk.data = buf;
+                msg.pk.len  = (uint32_t) key_len;
+        }
 
         pthread_cleanup_push(crypt_dh_pkp_destroy, pkp);