From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001
From: Cameron Katri <me@cameronkatri.com>
Date: Sun, 9 May 2021 14:20:58 -0400
Subject: Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
---
 diskdev_cmds/fuser.tproj/fuser.pl | 92 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100755 diskdev_cmds/fuser.tproj/fuser.pl

(limited to 'diskdev_cmds/fuser.tproj/fuser.pl')

diff --git a/diskdev_cmds/fuser.tproj/fuser.pl b/diskdev_cmds/fuser.tproj/fuser.pl
new file mode 100755
index 0000000..0784bfb
--- /dev/null
+++ b/diskdev_cmds/fuser.tproj/fuser.pl
@@ -0,0 +1,92 @@
+#!/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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