117 lines
3.9 KiB
Perl
Executable File
117 lines
3.9 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# Copyright (c) 1995 Wolfram Schneider, Berlin
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# All rights reserved. Alle Rechte vorbehalten.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by Wolfram Schneider
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# 4. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# killall - kill processes by name
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#
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# $Id: killall.pl,v 1.3 1996/02/03 22:52:27 wosch Exp $
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#
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$ENV{'PATH'} = '/bin:/usr/bin'; # security
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$procfs = '/proc';
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$signal = 'SIGTERM'; # default signal for kill
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$debug = 0;
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$match = 0; # 0 match exactly program name
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$show = 0; # do nothings
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# see /sys/miscfs/procfs/procfs_status.c
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$PROC_NAME = 0;
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$PROC_EUID = 11;
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$PROC_RUID = 12;
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sub usage {
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$! = 2;
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die "killall [-?|-help] [-d] [-l] [-m] [-s] [-SIGNAL] program\n";
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}
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$id = $<; # real uid of this process / your id
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while ($_ = $ARGV[0], /^-/) {
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shift @ARGV;
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if (/^--$/) { $_ = $ARGV[0]; last }
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elsif (/^-(h|help|\?)$/) { &usage }
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elsif (/^-[dv]$/) { $debug++ }
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elsif (/^-l$/) { exec 'kill', '-l' }
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elsif (/^-m$/) { $match = 1 }
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elsif (/^-s$/) { $show = 1 }
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elsif (/^-([a-z][a-z0-9]+|[0-9]+)$/i) { $signal = $1 }
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elsif (/^-/) { &usage }
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}
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$program = $_; &usage unless $program;
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die "Maybe $procfs is not mounted\n" unless -e "$procfs/0/status";
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opendir(PROCFS, "$procfs") || die "$procfs $!\n";
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print " PID EUID RUID COMMAND\n" if $debug > 1;
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# quote meta characters
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($programMatch = $program) =~ s/(\W)/\\$1/g;
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foreach (sort{$a <=> $b} grep(/^[0-9]/, readdir(PROCFS))) {
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$status = "$procfs/$_/status";
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$pid = $_;
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next if $pid == $$; # don't kill yourself
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open(STATUS, "$status") || next; # process maybe already terminated
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while(<STATUS>) {
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@proc = split;
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printf "%5d %5d %5d %s\n", $pid, $proc[$PROC_EUID],
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$proc[$PROC_RUID], $proc[$PROC_NAME] if $debug > 1;
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if ( # match program name
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($proc[$PROC_NAME] eq $program ||
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($match && $proc[$PROC_NAME] =~ /$programMatch/oi)
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) &&
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# id test
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($proc[$PROC_EUID] eq $id || # effective uid
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$proc[$PROC_RUID] eq $id || # real uid
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!$id)) # root
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{
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push(@kill, $pid);
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}
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}
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close STATUS;
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}
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closedir PROCFS;
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if ($#kill < 0) { # nothing found
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warn "No matching processes ``$program''.\n";
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exit(1);
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}
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$signal =~ y/a-z/A-Z/; # signal name in upper case
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$signal =~ s/^SIG//; # strip a leading SIG if present
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print "kill -$signal @kill\n" if $debug || $show;
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$cnt = kill ($signal, @kill) unless $show; # kill processes
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exit(0) if $show || $cnt == $#kill + 1;
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exit(1);
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