Marcus Meissner : shell32: Avoid potential 1 byte overflow.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 29700766ea4e95082342bc536efc955646df054d
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=29700766ea4e95082342bc536e...

Author: Marcus Meissner <marcus(a)jet.franken.de>
Date:   Fri May 11 20:09:29 2007 +0100

shell32: Avoid potential 1 byte overflow.

---

 dlls/shell32/shlexec.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/dlls/shell32/shlexec.c b/dlls/shell32/shlexec.c
index 6e38dbd..5b2ee4e 100644
--- a/dlls/shell32/shlexec.c
+++ b/dlls/shell32/shlexec.c
@@ -654,6 +654,8 @@ UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpOperation,
                            &filetypelen) == ERROR_SUCCESS)
         {
             filetypelen /= sizeof(WCHAR);
+	    if (filetypelen == sizeof(filetype)/sizeof(WCHAR))
+		filetypelen--;
             filetype[filetypelen] = '\0';
             TRACE("File type: %s\n", debugstr_w(filetype));
         }