Subject: bin/29484: inappropriate error checks in gzip
To: None <gnats-admin@netbsd.org, netbsd-bugs@netbsd.org>
From: None <yamt@mwd.biglobe.ne.jp>
List: netbsd-bugs
Date: 02/21/2005 21:40:00 
>Number:         29484
>Category:       bin
>Synopsis:       inappropriate error check in gzip
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 21 21:40:00 +0000 2005
>Originator:     YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
>Release:        NetBSD 2.99.14
>Organization:

>Environment:
	
	
System: NetBSD kaeru 2.99.14 NetBSD 2.99.14 (build.kaeru) #204: Mon Feb 21 20:51:15 JST 2005 takashi@kaeru:/usr/home/takashi/work/kernel/build.kaeru i386
Architecture: i386
Machine: i386
>Description:
	in-tree gzip has some code like the following,
	which don't work as expected on short-read.

	if (read(STDIN_FILENO, header1, sizeof header1) != sizeof header1) {
		maybe_warn("can't read stdin");
		return;
	}

>How-To-Repeat:
	run regress/usr.bin/gzip/pipe.
>Fix:
	

>Unformatted: