Rob Shearman : kernel32: Fix an off-by-one error in GetComputerNameExA/W.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a5317eb846e779159924cf0254b3837d10e28019
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=a5317eb846e779159924cf0254b3837d10e28019

Author: Rob Shearman <rob at codeweavers.com>
Date:   Wed Feb 21 17:13:25 2007 +0000

kernel32: Fix an off-by-one error in GetComputerNameExA/W.

The dns_* functions expect the input buffer to have space for size 
characters plus the nul terminating character.

---

 dlls/kernel32/computername.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/computername.c b/dlls/kernel32/computername.c
index d0d9d04..eebaed7 100644
--- a/dlls/kernel32/computername.c
+++ b/dlls/kernel32/computername.c
@@ -406,7 +406,7 @@ BOOL WINAPI GetComputerNameA(LPSTR name, LPDWORD size)
 BOOL WINAPI GetComputerNameExA(COMPUTER_NAME_FORMAT type, LPSTR name, LPDWORD size)
 {
     char buf[256];
-    int len = sizeof (buf), ret;
+    int len = sizeof(buf) - 1, ret;
     TRACE("%d, %p, %p\n", type, name, size);
     switch( type )
     {
@@ -458,7 +458,7 @@ BOOL WINAPI GetComputerNameExA(COMPUTER_NAME_FORMAT type, LPSTR name, LPDWORD si
 BOOL WINAPI GetComputerNameExW( COMPUTER_NAME_FORMAT type, LPWSTR name, LPDWORD size )
 {
     char buf[256];
-    int len = sizeof (buf), ret;
+    int len = sizeof(buf) - 1, ret;
 
     TRACE("%d, %p, %p\n", type, name, size);
     switch( type )