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#!/usr/bin/perl -w
##
# Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
#
# @APPLE_LICENSE_HEADER_START@
#
# This file contains Original Code and/or Modifications of Original Code
# as defined in and that are subject to the Apple Public Source License
# Version 2.0 (the 'License'). You may not use this file except in
# compliance with the License. Please obtain a copy of the License at
# http://www.opensource.apple.com/apsl/ and read it before using this
# file.
#
# The Original Code and all software distributed under the License are
# distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
# EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
# INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
# Please see the License for the specific language governing rights and
# limitations under the License.
#
# @APPLE_LICENSE_HEADER_END@
##
use strict;
use Getopt::Long qw(GetOptions);
sub usage {
print "fuser: [-cfu] file ...\n",
"\t-c\tfile is treated as mount point\n",
"\t-f\tthe report is only for the named files\n",
"\t-u\tprint username of pid in parenthesis\n";
}
Getopt::Long::config('bundling');
my %o;
unless (GetOptions(\%o, qw(c f u)) && scalar (@ARGV) > 0) {
usage();
exit(1);
}
use IO::Handle;
STDERR->autoflush(1);
STDOUT->autoflush(1);
my $exit_value = 0;
my $space = "";
while (scalar (@ARGV)) {
my $file = shift @ARGV;
if (-e $file) {
my @command;
push(@command, q(/usr/sbin/lsof));
push(@command, q(-F));
if ($o{u}) { # Add user name
push(@command, q(pfL));
} else {
push(@command, q(pf));
}
push(@command, q(-f)) if ($o{f});
push(@command, q(--));
push(@command, $file);
# This cryptic statement will cause exec(@command) to run in the child,
# with the output set up correctl and LSOF's input set up correctly.
open (LSOF, "-|") or exec(@command);
my @results = <LSOF>;
chomp(@results);
# fuser man page is very explicit about stdout/stderr output
print STDERR $file, qq(: );
my $username = "";
foreach (@results) {
if (/^p(\d+)$/) {
if ($username) {
print STDERR $username;
$username = "";
}
print $space, $1;
$space = q( );
}
if (/^f(c|r)[wt]d$/) {
print STDERR "$1" . $username;
$username = "";
}
$username = "(" . $1 . ")" if (/^L(.+)$/);
}
print STDERR $username . qq(\n);
} else {
print STDERR "$0: '$file' does not exist\n";
$exit_value = 1;
}
}
exit($exit_value);
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