From fe5edad1fcd60d94bc45ca49f94636eeecae210d Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicm@openbsd.org>
Date: Thu, 2 Jul 2009 16:15:43 +0000
Subject: Fix two copy/paste bugs: forbid zero-length buffers to prevent a
 fatal error when trying to paste them, found by me, and miscalculation of the
 start/end causing random fatal errors when copying in copy-mode, reported by
 sthen.

ok sthen "put it in" deraadt
---
 paste.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'paste.c')

diff --git a/paste.c b/paste.c
index 3644381c..981385e9 100644
--- a/paste.c
+++ b/paste.c
@@ -101,6 +101,9 @@ paste_add(struct paste_stack *ps, char *data, u_int limit)
 {
 	struct paste_buffer	*pb;
 
+	if (*data == '\0')
+		return;
+
 	while (ARRAY_LENGTH(ps) >= limit)
 		ARRAY_TRUNC(ps, 1);
 
-- 
cgit