updates.

[silc.git] / lib / silcutil / silcbuffmt.c

diff --git a/lib/silcutil/silcbuffmt.c b/lib/silcutil/silcbuffmt.c
index 3f0a529b575fdbe5b27d7a918e738aaff50fb210..c323a631fca987bd000f61cb80ef75e9473c8292 100644 (file)
--- a/lib/silcutil/silcbuffmt.c
+++ b/lib/silcutil/silcbuffmt.c
@@ -161,9 +161,11 @@ int silc_buffer_format_vp(SilcBuffer dst, va_list ap)
       {
        unsigned char *x = va_arg(ap, unsigned char *);
        SilcUInt32 len = va_arg(ap, SilcUInt32);
-       MY_HAS_SPACE(dst, len);
-       silc_buffer_put(dst, x, len);
-       silc_buffer_pull(dst, len);
+       if (x && len) {
+         MY_HAS_SPACE(dst, len);
+         silc_buffer_put(dst, x, len);
+         silc_buffer_pull(dst, len);
+       }
        break;
       }
     case SILC_BUFFER_PARAM_END: