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#!/usr/local/bin/perl |
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# $Id$ |
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## Restarts an AOLserver. Takes as its only argument the name of the |
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## server to kill. |
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#!/usr/bin/perl |
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## Restarts an AOLserver. |
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## Takes as its only argument the name of the server to kill. |
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## bquinn 6/16/2000 with help from {ryanlee, doug}@arsdigita |
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## This is a perl script because it needs to run setuid root, |
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## and perl has fewer security gotchas than most shells. |
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## |
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## Make sure that $PIDFILE points to the right location. |
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use strict; |
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use strict; |
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undef %ENV; |
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$ENV{'PATH'} = '/sbin:/bin'; |
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my @superusers=('james','jsc','brucek','dbryant'); |
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my $name; |
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($name) = (getpwuid($<))[0]; |
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my $superuser = 0; |
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if (grep ($name eq $_,@superusers) ) { |
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$superuser = 1; |
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if (scalar(@ARGV) == 0) { |
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die "Don't run this without any arguments!"; |
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} |
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if (scalar(@ARGV) == 0 && !$superuser) { |
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die "Don't run this without any arguments!\n"; |
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} |
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my $server = shift; |
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# untaint this variable to make suidperl happy |
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$server =~ /^([\w-]*)$/; |
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my $servername = $1; |
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my $service_name = $1; |
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my $PIDFILE = "/usr/local/aolserver/log/nspid.$service_name"; |
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my $pid; |
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if ($server && !$servername) { |
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die "An AOL servername should only have letters, numbers, underscores, or a dash.\nYou told us to restart $server, and we can't do that. |
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$< = $>; # set realuid to effective uid (root) |
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You just want to say something like \"restart-aolserver student000\". |
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" |
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} elsif (!$servername && !$superuser) { |
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die "We need something besides the empty string to restart.\n" |
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# Get the PID of the process to kill. |
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open(IN,"$PIDFILE") || die "No such server\n"; |
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while(<IN>) { |
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chomp($_); |
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$pid=$_; |
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} |
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close(IN) || die "Problem closing PID file\n"; |
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$< = $>; # set realuid to effective uid (root) |
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# Remove the PID file. We have to delete the file to make sure that a subsequent call |
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# to this script will kill some other process. We delete the file before the process dies |
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# because if the service is set to respawn then we may delete the new pid file. |
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## get the PIDs of all jobdirect servers |
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open(PID, "/usr/bin/ps -ef |") || die $!; |
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my @pids; |
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while (<PID>) { |
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next unless /^\s*\S+\s+(\d+).*nsd.*\/$servername\./; |
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my $pid = $1; |
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push(@pids, $pid); |
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} |
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close PID; |
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my $cmd ="rm -f $PIDFILE"; |
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$cmd =~ /^(.*)$/; |
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my $untaint_cmd = $1; |
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`$untaint_cmd`; |
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print "Killing ", join(" ", @pids), "\n"; |
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kill 'KILL', @pids; |
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# Issue the kill |
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$pid =~ /^(.*)$/; |
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my $untaint_pid = $1; |
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print "Killing $untaint_pid\n"; |
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kill 9, $untaint_pid; |
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