rwrap: Fix a possible NULL dereference.

CID: #84271

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jakub Hrozek <jakub.hrozek@gmail.com>
Reviewed-by: Guenther Deschner <gd@samba.org>

diff --git a/src/resolv_wrapper.c b/src/resolv_wrapper.c
index c70ca64e92b7737e3cd5b972cd719fdb1352d20c..10af3606b61be0bcab3cd9e314c2eb3a274ef9b9 100644 (file)
--- a/src/resolv_wrapper.c
+++ b/src/resolv_wrapper.c
@@ -733,7 +733,7 @@ static int rwrap_get_record(const char *hostfile, unsigned recursion,
                }
        }
 
-       if (rc == ENOENT && recursion == 0) {
+       if (rc == ENOENT && recursion == 0 && key != NULL) {
                RWRAP_LOG(RWRAP_LOG_TRACE, "Record for [%s] not found\n", query);
                memcpy(rr->key, key, strlen(key) + 1);
        }