[PATCH] avoid potential 1 byte overflow

[Marcus Meissner]

Coverity spotted this, and I have to agree
that if the returned entry is 256 WCHARs long
this would write one \0 too many.

CID 310

Ciao, Marcus
---
 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 2d4a25e..63bda87 100644
--- a/dlls/shell32/shlexec.c
+++ b/dlls/shell32/shlexec.c
@@ -654,6 +654,8 @@ UINT SHELL_FindExecutable(LPCWSTR lpPath
                            &filetypelen) == ERROR_SUCCESS)
         {
             filetypelen /= sizeof(WCHAR);
+	    if (filetypelen == sizeof(filetype)/sizeof(WCHAR))
+		filetypelen--;
             filetype[filetypelen] = '\0';
             TRACE("File type: %s\n", debugstr_w(filetype));
         }
-- 
1.4.3.4