From 50758bdd96f5043e58d53419a83b565586fef914 Mon Sep 17 00:00:00 2001
From: klondike <klondike@xiscosoft.es>
Date: Mon, 1 Apr 2013 21:07:57 +0200
Subject: Fix buffer overflow

Signed-off-by: Ian Stakenvicius <axs@gentoo.org>
---
 src/libudev/libudev-util.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libudev/libudev-util.c b/src/libudev/libudev-util.c
index 7d5cd30662..9371f32e9d 100644
--- a/src/libudev/libudev-util.c
+++ b/src/libudev/libudev-util.c
@@ -337,13 +337,15 @@ size_t util_strpcpyf(char **dest, size_t size, const char *src, ...)
         va_list va;
         int i;
 
+        if (!size) return 0; /*Nothing to do if size is 0*/
+
         va_start(va, src);
         i = vsnprintf(*dest, size, src, va);
         if (i < (int)size) {
                 *dest += i;
                 size -= i;
         } else {
-                *dest += size;
+                *dest += size - 1;
                 size = 0;
         }
         va_end(va);
-- 
cgit v1.2.3-54-g00ecf