Date: Fri, 04 Apr 2003 16:53:20 +0200 From: Jacques <jacques@ataris.co.za> To: FreeBSD-gnats-submit@FreeBSD.org Cc: jm@unix.co.nz Subject: bin/50603: Use of uninitialized value in printf at /usr/bin/sockstat line 141. Message-ID: <E191SZE-000MWK-00@mimbari.ataris.co.za> Resent-Message-ID: <200304041510.h34FA7bQ075974@freefall.freebsd.org>
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>Number: 50603 >Category: bin >Synopsis: Use of uninitialized value in printf at /usr/bin/sockstat line 141. >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Apr 04 07:10:02 PST 2003 >Closed-Date: >Last-Modified: >Originator: Jacques >Release: FreeBSD 4.8-RC i386 >Organization: Ataris Technologies >Environment: System: FreeBSD mimbari.ataris.co.za 4.8-RC FreeBSD 4.8-RC #2: Thu Apr 3 15:09:34 SAST 2003 root@mimbari.ataris.co.za:/usr/obj/usr/src/sys/MIMBARI i386 Has existed since early 4.4-STABLE days if my memory serves me correctly. >Description: There is an bug in usr.bin/sockstat/sockstat.pl which appears when the sysctl variable kern.ps_showallprocs is set to 0. When kern.ps_showallprocs is set to 1 the problem does not occur. Without the patch sockstat outputs: jacques@mimbari:~$ sockstat USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS jacques sshd 83428 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2409 jacques sshd 54396 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2257 jacques sshd 46680 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2215 jacques ssh 26598 3 tcp4 XXX.X.XX.XX:1084 XXX.X.XX.XX:22 jacques sshd 26526 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2175 USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS USER COMMAND PID FD PROTO ADDRESS Use of uninitialized value at /usr/bin/sockstat line 141. jacques sshd 83428 3 stream Use of uninitialized value at /usr/bin/sockstat line 141. jacques sshd 54396 3 stream Use of uninitialized value at /usr/bin/sockstat line 141. jacques sshd 46680 3 stream Use of uninitialized value at /usr/bin/sockstat line 141. jacques sshd 26526 3 stream With the patch the output looks like: jacques@mimbari:~$ !perl perl /usr/src/usr.bin/sockstat/sockstat.pl USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS jacques sshd 83428 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2409 jacques sshd 54396 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2257 jacques sshd 46680 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2215 jacques ssh 26598 3 tcp4 XXX.X.XX.XX:1084 XXX.X.XX.XX:22 jacques sshd 26526 5 tcp4 XXX.XXX.X.X:22 XXX.XXX.X.XXX:2175 USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS USER COMMAND PID FD PROTO ADDRESS jacques sshd 83428 3 stream (none) jacques sshd 54396 3 stream (none) jacques sshd 46680 3 stream (none) jacques sshd 26526 3 stream (none) >How-To-Repeat: >Fix: Credits go to Cas <xcas@cox.net> who supplied the fix and I've made the patch file of the change from Cas. Apply the following patch in /usr/src patch < /root/patches/sockstat.pl --- sockstat.patch begins here --- --- usr.bin/sockstat/sockstat.pl.old Wed Oct 3 00:41:22 2001 +++ usr.bin/sockstat/sockstat.pl Fri Apr 4 15:01:49 2003 @@ -140,7 +140,7 @@ $nsd = $netstat{$fsd->[6]} || $unknown; printf($unix_fmt, $fsd->[0], $fsd->[1], $fsd->[2], substr($fsd->[3], 0, -1), $fsd->[5], - $nsd->[8] || ($fsd->[8] ? $endpoint{$fsd->[8]} : "(none)")); + $nsd->[8] || ($fsd->[8] && $endpoint{$fsd->[8]} ? $endpoint{$fsd->[8]} : "(none)")); } print("\n"); } --- sockstat.patch ends here --- >Release-Note: >Audit-Trail: >Unformatted:
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