1#!/usr/local/bin/perl4 2# 3# $Id: list_fields.perl,v 1.5 2000/07/14 17:03:37 abe Exp $ 4# 5# list_fields.perl -- sample Perl script to list lsof full field output 6# (i.e., -F output without -0) 7# 8# This script has been tested under perl versions 4.036 and 5.001e. 9# 10# Copyright 1994 Purdue Research Foundation, West Lafayette, Indiana 11# 47907. All rights reserved. 12# 13# Written by Victor A. Abell 14# 15# This software is not subject to any license of the American Telephone 16# and Telegraph Company or the Regents of the University of California. 17# 18# Permission is granted to anyone to use this software for any purpose on 19# any computer system, and to alter it and redistribute it freely, subject 20# to the following restrictions: 21# 22# 1. Neither the authors nor Purdue University are responsible for any 23# consequences of the use of this software. 24# 25# 2. The origin of this software must not be misrepresented, either by 26# explicit claim or by omission. Credit to the authors and Purdue 27# University must appear in documentation and sources. 28# 29# 3. Altered versions must be plainly marked as such, and must not be 30# misrepresented as being the original software. 31# 32# 4. This notice may not be removed or altered. 33 34# Initialize variables. 35 36$fhdr = 0; # fd hdr. flag 37$fdst = 0; # fd state 38$access = $devch = $devn = $fd = $inode = $lock = $name = ""; # | file descr. 39$offset = $proto = $size = $state = $stream = $type = ""; # | variables 40$pidst = 0; # process state 41$cmd = $login = $pgrp = $pid = $ppid = $uid = ""; # process var. 42 43# Process the ``lsof -F'' output a line at a time, gathering 44# the variables for a process together before printing them; 45# then gathering the variables for each file descriptor 46# together before printing them. 47 48while (<>) { 49 chop; 50 if (/^p(.*)/) { 51 52# A process set begins with a PID field whose ID character is `p'. 53 54 $tpid = $1; 55 if ($pidst) { &list_proc } 56 $pidst = 1; 57 $pid = $tpid; 58 if ($fdst) { &list_fd; $fdst = 0; } 59 next; 60 } 61 62# Save process-related values. 63 64 if (/^g(.*)/) { $pgrp = $1; next; } 65 if (/^c(.*)/) { $cmd = $1; next; } 66 if (/^u(.*)/) { $uid = $1; next; } 67 if (/^L(.*)/) { $login = $1; next; } 68 if (/^R(.*)/) { $ppid = $1; next; } 69 70# A file descriptor set begins with a file descriptor field whose ID 71# character is `f'. 72 73 if (/^f(.*)/) { 74 $tfd = $1; 75 if ($pidst) { &list_proc } 76 if ($fdst) { &list_fd } 77 $fd = $tfd; 78 $fdst = 1; 79 next; 80 } 81 82# Save file set information. 83 84 if (/^a(.*)/) { $access = $1; next; } 85 if (/^C(.*)/) { next; } 86 if (/^d(.*)/) { $devch = $1; next; } 87 if (/^D(.*)/) { $devn = $1; next; } 88 if (/^F(.*)/) { next; } 89 if (/^G(.*)/) { next; } 90 if (/^i(.*)/) { $inode = $1; next; } 91 if (/^k(.*)/) { next; } 92 if (/^l(.*)/) { $lock = $1; next; } 93 if (/^N(.*)/) { next; } 94 if (/^o(.*)/) { $offset = $1; next; } 95 if (/^P(.*)/) { $proto = $1; next; } 96 if (/^s(.*)/) { $size = $1; next; } 97 if (/^S(.*)/) { $stream = $1; next; } 98 if (/^t(.*)/) { $type = $1; next; } 99 if (/^T(.*)/) { 100 if ($state eq "") { $state = "(" . $1; } 101 else { $state = $state . " " . $1; } 102 next; 103 } 104 if (/^n(.*)/) { $name = $1; next; } 105 print "ERROR: unrecognized: \"$_\"\n"; 106} 107 108# Flush any stored file or process output. 109 110if ($fdst) { &list_fd } 111if ($pidst) { &list_proc } 112exit(0); 113 114 115## list_fd -- list file descriptor information 116# Values are stored inelegantly in global variables. 117 118sub list_fd { 119 if ( ! $fhdr) { 120 121 # Print header once. 122 123 print " FD TYPE DEVICE SIZE/OFF INODE NAME\n"; 124 $fhdr = 1; 125 } 126 printf " %4s%1.1s%1.1s %4.4s", $fd, $access, $lock, $type; 127 $tmp = $devn; if ($devch ne "") { $tmp = $devch } 128 printf " %10.10s", $tmp; 129 $tmp = $size; if ($offset ne "") { $tmp = $offset } 130 printf " %10.10s", $tmp; 131 $tmp = $inode; if ($proto ne "") { $tmp = $proto } 132 printf " %10.10s", $tmp; 133 $tmp = $stream; if ($name ne "") { $tmp = $name } 134 print " ", $tmp; 135 if ($state ne "") { printf " %s)\n", $state; } else { print "\n"; } 136 137# Clear variables. 138 139 $access = $devch = $devn = $fd = $inode = $lock = $name = ""; 140 $offset = $proto = $size = $state = $stream = $type = ""; 141} 142 143 144# list_proc -- list process information 145# Values are stored inelegantly in global variables. 146 147sub list_proc { 148 print "COMMAND PID PGRP PPID USER\n"; 149 $tmp = $uid; if ($login ne "") {$tmp = $login } 150 printf "%-9.9s %6d %6d %6d %s\n", $cmd, $pid, $pgrp, $ppid, $tmp; 151 152# Clear variables. 153 154 $cmd = $login = $pgrp = $pid = $uid = ""; 155 $fhdr = $pidst = 0; 156} 157