From 0aad594d5f0d032f88ca174aa2ae56f8493b40df Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Sun, 16 Oct 2011 14:49:14 -0700
Subject: [PATCH] shell32: Use existing buffer rather than copying, and
 potentially truncating, a filename prior to executing it.

---
 dlls/shell32/shlexec.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/dlls/shell32/shlexec.c b/dlls/shell32/shlexec.c
index b25a04b413c..7fd485e5944 100644
--- a/dlls/shell32/shlexec.c
+++ b/dlls/shell32/shlexec.c
@@ -1797,6 +1797,7 @@ static BOOL SHELL_execute( LPSHELLEXECUTEINFOW sei, SHELL_ExecuteW32 execfunc )
 
 	    /* terminate previous command string after the quote character */
 	    *end = '\0';
+            lpFile = wfileName;
 	}
 	else
 	{
@@ -1827,12 +1828,10 @@ static BOOL SHELL_execute( LPSHELLEXECUTEINFOW sei, SHELL_ExecuteW32 execfunc )
 		}
 	    }
 
-           lstrcpynW(wfileName, sei_tmp.lpFile,sizeof(wfileName)/sizeof(WCHAR));
+            lpFile = sei_tmp.lpFile;
 	}
     } else
-       lstrcpynW(wfileName, sei_tmp.lpFile,sizeof(wfileName)/sizeof(WCHAR));
-
-    lpFile = wfileName;
+        lpFile = sei_tmp.lpFile;
 
     wcmd = wcmdBuffer;
     len = lstrlenW(wszApplicationName) + 1;