From 6b857fc253fd5d6c34627f80f6898a0f423bac34 Mon Sep 17 00:00:00 2001
From: n-a-c-h <n-a-c-h@a31d4220-a93d-0410-bf67-fe4944624d44>
Date: Tue, 27 May 2008 15:35:03 +0000
Subject: [PATCH] Fixed unprotect_buffer().

git-svn-id: https://svn.code.sf.net/p/vbam/code/trunk@536 a31d4220-a93d-0410-bf67-fe4944624d44
---
 src/win32/protect.c | 25 +++++++++++++------------
 src/win32/protect.h |  2 +-
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/src/win32/protect.c b/src/win32/protect.c
index 284f8a27..696d4883 100644
--- a/src/win32/protect.c
+++ b/src/win32/protect.c
@@ -16,18 +16,19 @@ int ExecutableValid(const char *executable_filename)
 
 #else
 
-void unprotect_buf(char *buffer, size_t buffer_len)
-{
-  char *end_p = buffer+buffer_len, previous = 0x11;
-  while (buffer < end_p)
-  {
-    char current = *buffer;
-    *buffer ^= previous;
-    previous = current;
-    *buffer -= 25;
-    *buffer ^= 0x87;
-    ++buffer;
-  }
+char *unprotect_buffer(char *buffer, size_t buffer_len)
+{
+  char *p = buffer, *end_p = p+buffer_len-1, previous = 0x11;
+  while (p < end_p)
+  {
+    char current = *p;
+    *p ^= previous;
+    previous = current;
+    *p -= 25;
+    *p ^= 0x87;
+    ++p;
+  }
+  return(buffer);
 }
 
 static uint8_t *memmem(const uint8_t *haystack, size_t haystacklen, const uint8_t *needle, size_t needlelen)
diff --git a/src/win32/protect.h b/src/win32/protect.h
index c99ace29..2393cbae 100644
--- a/src/win32/protect.h
+++ b/src/win32/protect.h
@@ -8,7 +8,7 @@ extern "C" {
 //Returns 0 on success, 1 on failure, and <0 when an error occured
 //Note, can only be called once per execution
 int ExecutableValid(const char *executable_filename);
-void unprotect_buf(char *buffer, size_t buffer_len)
+char *unprotect_buffer(char *buffer, size_t buffer_len);
 
 #if defined(__cplusplus)
 }