Date: Fri, 5 Aug 2005 03:29:11 GMT From: Igor <igor@ispsystem.com> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/84569: rm -W sometime does not work Message-ID: <200508050329.j753TB3N042115@www.freebsd.org> Resent-Message-ID: <200508050330.j753UKuc083401@freefall.freebsd.org>
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>Number: 84569 >Category: bin >Synopsis: rm -W sometime does not work >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Aug 05 03:30:20 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Igor >Release: FreeBSD-5.4 >Organization: ISPsystem >Environment: root@dev-5# uname -a FreeBSD dev-5.ispsystem.net 5.4-STABLE FreeBSD 5.4-STABLE #20: Fri Aug 5 04:35:25 CEST 2005 root@dev-5.ispsystem.ne t:/root/src/sys/i386/compile/ISPSYSTEM i386 >Description: rm -W does not work sometime test# ls -lW w--------- 0 root wheel 0 Jan 1 1970 amd.map test# rm -W amd.map rm: amd.map: No such file or directory >How-To-Repeat: no way, but please see rm.c code and may find variable 'struct stat st' is not inialized if Wflag is set, then the utility checks uninitialized sb.st_flags to make some actions which cause error. >Fix: there is 2 ways: 1. to initialize sb stucture by zero --- rm.c.orig Fri Aug 5 05:06:29 2005 +++ rm.c Fri Aug 5 05:25:03 2005 @@ -318,6 +318,7 @@ /* Assume if can't stat the file, can't unlink it. */ if (lstat(f, &sb)) { if (Wflag) { + bzero(&sb, sizeof(sb)); sb.st_mode = S_IFWHT|S_IWUSR|S_IRUSR; } else { if (!fflag || errno != ENOENT) { 2. to add checks of WHT flag before doing chflags --- rm.c.orig Fri Aug 5 05:06:29 2005 +++ rm.c Fri Aug 5 05:19:18 2005 @@ -340,7 +340,7 @@ if (!fflag && !S_ISWHT(sb.st_mode) && !check(f, f, &sb)) continue; rval = 0; - if (!uid && + if (!S_ISWHT(sb.st_mode) && !uid && (sb.st_flags & (UF_APPEND|UF_IMMUTABLE)) && !(sb.st_flags & (SF_APPEND|SF_IMMUTABLE))) rval = chflags(f, sb.st_flags & ~(UF_APPEND|UF_IMMUTABLE)); >Release-Note: >Audit-Trail: >Unformatted:
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