/usr/bin/prefixadmin is in libapp-options-perl 1.12-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
if 0; # not running under some shell
###########################################################################
# TODO
###########################################################################
# o tbd
###########################################################################
use strict;
use App::Options (
options => [qw(prefix remote remote_prefix remote_user remote_host op verbose)],
option => {
prefix => {
description => "the directory path to be administered (generally an 'application root' directory)",
},
remote => {
description => "run the command remotely using 'ssh' rather than locally as the logged in user",
},
remote_host => {
description => "(for --remote option) which server(s) to run the prefixadmin on. Comma delimited list. (optionally user\@host:/pr/ef/ix)",
},
remote_prefix => {
description => "directory on remote machine to administer",
},
remote_user => {
description => "the username to run the remote command",
},
op => {
description => "list of operations to perform [fix] (check,fix)",
},
username => {
description => "the user name that a prefix should be shared as",
},
group => {
description => "the group name that a prefix should be shared as",
},
verbose => {
default => 0,
description => "level of detail to print",
},
},
);
$| = 1;
{
my (@op);
if ($App::options{op}) {
@op = split(/,/,$App::options{op});
}
elsif ($#ARGV > -1) {
@op = @ARGV;
}
else {
@op = ("fix");
}
if ($#op > -1) {
my $admin = App::Options::PrefixAdmin->new();
foreach my $op (@op) {
if ($op eq "fix") {
$admin->fix(\%App::options);
}
else {
print "Unknown operation [$op]\n";
}
}
}
else {
print "No operations specified\n";
}
}
package App::Options::PrefixAdmin;
use File::Find;
use Date::Format;
use Fcntl ':mode';
sub new {
my ($this) = @_;
my $class = ref($this) || $this;
my $self = {};
bless $self, $class;
return($self);
}
sub fix {
my ($self, $options) = @_;
my ($path, $file, $cwd);
my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size, $atime, $mtime, $ctime, $blksize, $blocks);
my $verbose = $options->{verbose} || 0;
my $prefix = $options->{prefix} || die "prefix not specified";
die "$prefix is not a directory" if (! -d $prefix);
chdir($prefix) || die "Could not change directory to $prefix";
$path = ".";
($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size, $atime, $mtime, $ctime, $blksize, $blocks) = stat($path);
if ($verbose >= 2) {
printf("%3d %8d %10s %2d %5d %5d %6d %15d [%17s] %s\n",
$dev, $ino, $self->format_mode($mode), $nlink, $uid, $gid, $rdev, $size, time2str("%Y-%m-%d %H:%M:%S", $mtime), $path);
}
my ($u_name, $u_pass, $u_uid, $u_gid, $u_quota, $u_comment, $u_gcos, $u_dir, $u_shell, $u_expire) = getpwuid($uid);
print "Uname: $u_name UID: $u_uid\n" if ($verbose >= 2);
my ($grp_name, $grp_passwd, $grp_gid, $grp_members) = getgrgid($gid);
print "Gname: $grp_name GID: $grp_gid Members: $grp_members\n" if ($verbose >= 2);
my ($shgrp_name,$shgrp_passwd,$shgrp_gid,$shgrp_members);
my $shared_group = $options->{group};
if ($shared_group) {
($shgrp_name,$shgrp_passwd,$shgrp_gid,$shgrp_members) = getgrnam($shared_group);
print "Shared Gname: $shgrp_name GID: $shgrp_gid Members: $shgrp_members\n" if ($verbose >= 2);
}
else { # if --group is not given on the command line, use the GID of the top level directory
($shgrp_name,$shgrp_passwd,$shgrp_gid,$shgrp_members) = getgrgid($gid);
print "Shared Gname: $shgrp_name GID: $shgrp_gid Members: $shgrp_members\n" if ($verbose >= 2);
}
#print STDERR " searching $prefix\n" if ($verbose >= 2);
find(
sub {
$file = $_;
$path = $File::Find::name;
$path =~ s!^\.\/!!;
$cwd = $File::Find::dir;
$cwd =~ s!^\.\/!!;
my ($err_msg);
($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size, $atime, $mtime, $ctime, $blksize, $blocks) = stat($file);
if (!defined $mode) {
print ">>> $file\n" if ($verbose);
}
else {
printf("%3d %8d %07o:%10s %2d %5d %5d %6d %15d [%17s] %s\n",
$dev, $ino, $mode, $self->format_mode($mode), $nlink, $uid, $gid, $rdev, $size, time2str("%Y-%m-%d %H:%M:%S", $mtime), $path) if ($verbose);
if ($shgrp_gid) {
$err_msg = $self->_share_file($file, $options, $shgrp_gid, $mode, $uid, $gid);
}
}
return(0);
},
"."
);
}
# S_IRWXU S_IRUSR S_IWUSR S_IXUSR
# S_IRWXG S_IRGRP S_IWGRP S_IXGRP
# S_IRWXO S_IROTH S_IWOTH S_IXOTH
#
# # Setuid/Setgid/Stickiness/SaveText.
# # Note that the exact meaning of these is system dependent.
#
# S_ISUID S_ISGID S_ISVTX S_ISTXT
sub format_mode {
my ($self, $mode) = @_;
my $fmt_mode = ($mode & S_IFREG) ? "-" : (($mode & S_IFDIR) ? "d" : (($mode & S_IFLNK) ? "l" : "?"));
$fmt_mode .= ($mode & S_IRUSR) ? "r" : "-";
$fmt_mode .= ($mode & S_IWUSR) ? "w" : "-";
$fmt_mode .= ($mode & S_IXUSR) ? (($mode & S_ISUID) ? "s" : "x") : (($mode & S_ISUID) ? "S" : "-");
$fmt_mode .= ($mode & S_IRGRP) ? "r" : "-";
$fmt_mode .= ($mode & S_IWGRP) ? "w" : "-";
$fmt_mode .= ($mode & S_IXGRP) ? (($mode & S_ISGID) ? "s" : "x") : (($mode & S_ISGID) ? "S" : "-");
$fmt_mode .= ($mode & S_IROTH) ? "r" : "-";
$fmt_mode .= ($mode & S_IWOTH) ? "w" : "-";
$fmt_mode .= ($mode & S_IXOTH) ? (($mode & S_ISVTX) ? "t" : "x") : (($mode & S_ISVTX) ? "T" : "-");
return($fmt_mode);
}
# 1. $cnt = chmod 0755, 'foo', 'bar';
# 2. chmod 0755, @executables;
# 3. $mode = '0644'; chmod $mode, 'foo'; # !!! sets mode to
# 4. # --w----r-T
# 5. $mode = '0644'; chmod oct($mode), 'foo'; # this is better
# 6. $mode = 0644; chmod $mode, 'foo'; # this is best
# 1. $cnt = chown $uid, $gid, 'foo', 'bar';
# 2. chown $uid, $gid, @filenames;
sub _share_file {
my ($self, $file, $options, $shgrp_gid, $mode, $uid, $gid) = @_;
my $verbose = $options->{verbose};
my $err_msg = "";
my ($retval);
if ($shgrp_gid) {
if ($gid != $shgrp_gid) {
$retval = chown($uid, $shgrp_gid, $file);
if ($verbose) {
print ">>> chown($uid, $shgrp_gid, $file) = [$retval]\n";
}
}
my $share_mode = $mode & 07777;
my $mode_needs_fix = 0;
if ($mode & S_IFDIR) {
if ($mode & S_ISGID) {
# do nothing
}
else {
$share_mode |= S_ISGID;
$mode_needs_fix = 1;
}
}
else {
if ($mode & S_ISGID) {
$share_mode ^= S_ISGID;
$mode_needs_fix = 1;
}
else {
# do nothing
}
}
if ($mode & S_ISUID) {
$share_mode ^= S_ISUID;
$mode_needs_fix = 1;
}
if ($mode & S_ISVTX) {
$share_mode ^= S_ISVTX;
$mode_needs_fix = 1;
}
if ($mode & S_IRUSR) {
if ($mode & S_IRGRP) {
# do nothing
}
else {
$share_mode |= S_IRGRP;
$mode_needs_fix = 1;
}
}
if ($mode & S_IWUSR) {
if ($mode & S_IWGRP) {
# do nothing
}
else {
$share_mode |= S_IWGRP;
$mode_needs_fix = 1;
}
}
if ($mode & S_IXUSR) {
if ($mode & S_IXGRP) {
# do nothing
}
else {
$share_mode |= S_IXGRP;
$mode_needs_fix = 1;
}
}
if ($mode_needs_fix) {
$retval = chmod($share_mode, $file);
if ($verbose) {
printf(">>> chmod(%06o, $file) = [$retval]\n", $share_mode);
}
}
}
return($err_msg);
}
1;
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