From e834cbed0e71d7e0967ab31f1d67f95af7f05e53 Mon Sep 17 00:00:00 2001
From: Iwan <maxim@piesync.com>
Date: Sat, 22 Apr 2017 20:18:55 +0200
Subject: [PATCH] Make the segfault great again.

When copying the final part of the string, after the last found index,
I forgot to subtract the length of the word of the replacement.
It would copy too much bytes this way.

memcpy(temp, pstr, filelen - j) --> segfault
memcpy(temp, pstr, filelen - (j + oldLen)) --> :)
---
 fastreplacestring.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fastreplacestring.cpp b/fastreplacestring.cpp
index 45f4256..2c33817 100644
--- a/fastreplacestring.cpp
+++ b/fastreplacestring.cpp
@@ -133,7 +133,7 @@ int main(int argc, char **argv) {
       temp += newLen;
       start = j + oldLen;
     }
-    memcpy(temp, pstr, filelen - j);
+    memcpy(temp, pstr, filelen - start);
 
     free(s);