uclient: Handle memory allocation failure for url

Check ptr to url after allocation to prevent null pointer
dereference

Signed-off-by: Tobias Schramm <tobleminer@gmail.com>

diff --git a/uclient.c b/uclient.c
index 8862b557b975204d723923c4c3ab64ffea8763e9..11371684e8a15cdd8566263d2a3b8b670880b7a2 100644 (file)
--- a/uclient.c
+++ b/uclient.c
@@ -59,6 +59,9 @@ __uclient_get_url(const struct uclient_backend *backend,
                &uri_buf, strlen(location) + 1,
                &auth_buf, auth_str ? strlen(auth_str) + 1 : 0);
 
+       if (!url)
+               return NULL;
+
        url->backend = backend;
        url->location = strcpy(uri_buf, location);
        if (host)