Date: Fri, 22 Mar 2002 00:50:02 -0800 (PST) From: Maxim Konovalov <maxim@macomnet.ru> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/36175: Vsnprintf causes memeory leak Message-ID: <200203220850.g2M8o2d86832@freefall.freebsd.org>
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The following reply was made to PR bin/36175; it has been noted by GNATS. From: Maxim Konovalov <maxim@macomnet.ru> To: Jiu Zheng <jiu@stbernard.com> Cc: freebsd-gnats-submit@FreeBSD.ORG, <assar@FreeBSD.ORG> Subject: Re: bin/36175: Vsnprintf causes memeory leak Date: Fri, 22 Mar 2002 11:42:55 +0300 (MSK) Could you please try a patch below (from OpenBSD): Index: vsnprintf.c =================================================================== RCS file: /home/ncvs/src/lib/libc/stdio/vsnprintf.c,v retrieving revision 1.15 diff -u -r1.15 vsnprintf.c --- vsnprintf.c 18 Jun 2001 04:40:52 -0000 1.15 +++ vsnprintf.c 22 Mar 2002 08:32:29 -0000 @@ -55,6 +55,7 @@ { size_t on; int ret; + char dummy; FILE f; on = n; @@ -62,6 +63,11 @@ n--; if (n > INT_MAX) n = INT_MAX; + /* Stdio internals do not deal correctly with zero length buffer */ + if (n == 0) { + str = &dummy; + n = 1; + } f._file = -1; f._flags = __SWR | __SSTR; f._bf._base = f._p = (unsigned char *)str; %%% -- Maxim Konovalov, MAcomnet, Internet-Intranet Dept., system engineer phone: +7 (095) 796-9079, mailto:maxim@macomnet.ru To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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