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From: fche@sourceware.org
To: systemtap-cvs@sourceware.org
Subject: src main.cxx
Date: Wed, 02 Jan 2008 18:22:00 -0000	[thread overview]
Message-ID: <20080102182229.14408.qmail@sourceware.org> (raw)

CVSROOT:	/cvs/systemtap
Module name:	src
Changes by:	fche@sourceware.org	2008-01-02 18:22:29

Modified files:
	.              : main.cxx 

Log message:
	Fix mkdtemp() umask issue
	
	Even though the mkdtemp() man page indicates that the
	directory will be created with always 0700 permissions,
	it is actually affected by the process's umask.
	
	So, if you run stap with an unusual umask it can end
	up creating the temp dir with permissions that
	staprun can't handle e.g.:
	
	$> rpm -q systemtap
	systemtap-0.6-1.fc9
	$> umask 0122
	$> stap -e 'probe begin { println("foo") exit() }'
	ERROR: Error opening '/tmp/stapV4pBIb/stap_725b9bc541cef2618a5ccbc58bb64d15_287.ko': Permission denied
	
	Obvious solution is to briefly set the umask to zero
	in stap so as to ensure 0700 permissions.
	
	Signed-off-by: Mark McLoughlin <markmc@redhat.com>

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/main.cxx.diff?cvsroot=systemtap&r1=1.82&r2=1.83


             reply	other threads:[~2008-01-02 18:22 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-02 18:22 fche [this message]
  -- strict thread matches above, loose matches on Subject: below --
2008-01-30 17:23 fche
2007-05-13  2:08 fche
2006-04-05  5:20 roland
2006-01-28  2:50 fche
2005-12-12 21:50 kevinrs
2005-08-22 16:23 fche
2005-07-29  8:36 roland

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