From 77ae3cd8f77e4e255e823b07cd8b50d28b38e03b Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Tue, 20 Sep 2011 22:36:23 +0100
Subject: [PATCH] Bugfix: use bufcopy instead of buf when boundary checking
 (Thanks thomasba)

Also replace the useless (bufcopy + (next - bufcopy)) with next
---
 src/cfgparse.y | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/cfgparse.y b/src/cfgparse.y
index f1843312..dc29860c 100644
--- a/src/cfgparse.y
+++ b/src/cfgparse.y
@@ -390,8 +390,8 @@ void parse_file(const char *f) {
         int extra = (strlen(current->value) - strlen(current->key));
         char *next;
         for (next = bufcopy;
-             (bufcopy + (next - bufcopy)) < (buf + stbuf.st_size) &&
-             (next = strcasestr(bufcopy + (next - bufcopy), current->key)) != NULL;
+             next < (bufcopy + stbuf.st_size) &&
+             (next = strcasestr(next, current->key)) != NULL;
              next += strlen(current->key)) {
             *next = '_';
             extra_bytes += extra;