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[bug #20495] debug version crashes on windows on close(-1)
From: |
anonymous |
Subject: |
[bug #20495] debug version crashes on windows on close(-1) |
Date: |
Tue, 03 Mar 2009 16:16:56 +0000 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.0.6) Gecko/2009011913 Firefox/3.0.6 (.NET CLR 3.5.30729) |
Follow-up Comment #1, bug #20495 (project make):
There seems to be a change within the Microsoft Visual C++ Runtime between
Microsoft Visual Studio .NET (aka 2002) and Microsoft Visual Studio 2005. I
have no access to Microsoft Visual Studio 2003 so I can't prove if this
behavior was introduced earlier.
Microsoft Visual Studio .NETVc7crtsrcclose.c
/* validate file handle */
if ( ((unsigned)fh >= (unsigned)_nhandle) ||
!(_osfile(fh) & FOPEN) )
{
/* bad file handle, set errno and abort */
errno = EBADF;
_doserrno = 0;
return -1;
}
Microsoft Visual Studio 8VCcrtsrcclose.c
/* validate file handle */
_CHECK_FH_CLEAR_OSSERR_RETURN( fh, EBADF, -1 );
_VALIDATE_CLEAR_OSSERR_RETURN((fh >= 0 && (unsigned)fh < (unsigned)_nhandle),
EBADF, -1);
_VALIDATE_CLEAR_OSSERR_RETURN((_osfile(fh) & FOPEN), EBADF, -1);
Anyway, closing the file handle -1 is definitely a bug, which was ignored by
earlier versions of the Microsoft libraries (in fact it was reported by the
return code of close() which is *explicitly* ignored by the caller within
function.c).
Regards, Stefan
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- [bug #20495] debug version crashes on windows on close(-1),
anonymous <=