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From: "timp at pulsic dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Subject: [Bug libc/4977] SEGV in strlen() of string argument of vsnprintf call on RHEL WS3/64-bit
Date: Wed, 29 Aug 2007 15:58:00 -0000	[thread overview]
Message-ID: <20070829155823.9413.qmail@sourceware.org> (raw)
In-Reply-To: <20070829152853.4977.timp@pulsic.com>


------- Additional Comments From timp at pulsic dot com  2007-08-29 15:58 -------
(In reply to comment #1)
> The testcase is invalid.
> Please read http://www.opengroup.org/onlinepubs/009695399/basedefs/stdarg.h.html
> carefully.

Agh - stupidity hits. Thanks for the link - I guess this means passing the
va_list as a function parameter is highly implementation specific and will
potentially be unavailable on some systems (e.g. HP-UX 11i even with recent
compilers has no va_copy) or with no c9x compliant compilers.

> Particularly you are missing va_copy and another va_end.

yep - on C99 systems. That went past a few of us, should have realised.

Cheers
tim


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4977

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  parent reply	other threads:[~2007-08-29 15:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-29 15:29 [Bug libc/4977] New: " timp at pulsic dot com
2007-08-29 15:40 ` [Bug libc/4977] " jakub at redhat dot com
2007-08-29 15:58 ` timp at pulsic dot com [this message]
2007-08-29 16:10 ` jakub at redhat dot com
2007-08-29 16:34 ` timp at pulsic dot com
2007-08-29 16:41 ` jakub at redhat dot com

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