--- tftpd/src/buf.c	2014/02/24 15:12:31	1.1.2.3
+++ tftpd/src/buf.c	2014/02/24 15:22:39	1.1.2.4
@@ -36,8 +36,8 @@ flushBuffer(int fd)
 		return 0;
 
 	m = cfg_getAttribute(&cfg, "tftpd", "buf_pad");
-	if (m) {
-		memset(RPACK_NEXT(bf), *m, RPACK_REMAIN(bf));
+	if (m && RPACK_REMAIN(bf)) {
+		memset(RPACK_NEXT(bf), (u_char) strtol(m, NULL, 0), RPACK_REMAIN(bf));
 		EVERBOSE(4, "Padding buffer with '%c' len=%d", *m, RPACK_REMAIN(bf));
 		rpack_rnext(bf, RPACK_REMAIN(bf));
 	}