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#!/usr/bin/perl -w
my $VER="4.6.7";
#
# This program is based on the 'mactime' program by Dan Farmer and
# and the 'mac_daddy' program by Rob Lee.
#
# It takes as input data from either 'ils -m' or 'fls -m' (from The Sleuth
# Kit) or 'mac-robber'.
# Based on the dates as arguments given, the data is sorted by and
# printed.
#
# The Sleuth Kit
# Brian Carrier [carrier <at> sleuthkit [dot] org]
# Copyright (c) 2003-2012 Brian Carrier. All rights reserved
#
# TASK
# Copyright (c) 2002 Brian Carrier, @stake Inc. All rights reserved
#
#
# The modifications to the original mactime are distributed under
# the Common Public License 1.0
#
#
# Copyright 1999 by Dan Farmer. All rights reserved. Some individual
# files may be covered by other copyrights (this will be noted in the
# file itself.)
#
# Redistribution and use in source and binary forms are permitted
# provided that this entire copyright notice is duplicated in all such
# copies.
#
# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
#
# IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, LOSS OF USE, DATA, OR PROFITS OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
use POSIX;
use strict;
my $debug = 0;
# %month_to_digit = ("Jan", 1, "Feb", 2, "Mar", 3, "Apr", 4, "May", 5, "Jun", 6,
# "Jul", 7, "Aug", 8, "Sep", 9, "Oct", 10, "Nov", 11, "Dec", 12);
my %digit_to_month = (
"01", "Jan", "02", "Feb", "03", "Mar", "04", "Apr",
"05", "May", "06", "Jun", "07", "Jul", "08", "Aug",
"09", "Sep", "10", "Oct", "11", "Nov", "12", "Dec"
);
my %digit_to_day = (
"0", "Sun", "1", "Mon", "2", "Tue", "3", "Wed",
"4", "Thu", "5", "Fri", "6", "Sat"
);
sub usage {
print <<EOF;
mactime [-b body_file] [-p password_file] [-g group_file] [-i day|hour idx_file] [-d] [-h] [-V] [-y] [-z TIME_ZONE] [DATE]
-b: Specifies the body file location, else STDIN is used
-d: Output in comma delimited format
-h: Display a header with session information
-i [day | hour] file: Specifies the index file with a summary of results
-y: Dates are displayed in ISO 8601 format
-m: Dates have month as number instead of word (does not work with -y)
-z: Specify the timezone the data came from (in the local system format) (does not work with -y)
-g: Specifies the group file location, else GIDs are used
-p: Specifies the password file location, else UIDs are used
-V: Prints the version to STDOUT
[DATE]: starting date (yyyy-mm-dd) or range (yyyy-mm-dd..yyyy-mm-dd)
[DATE]: date with time (yyyy-mm-ddThh:mm:ss), using with range one or both can have time
EOF
exit(1);
}
sub version {
print "The Sleuth Kit ver $VER\n";
}
my $BODY = "";
my $GROUP = "";
my $PASSWD = "";
my $TIME = "";
my $INDEX = ""; # File name of index
my $INDEX_DAY = 1; # Daily index (for $INDEX_TYPE)
my $INDEX_HOUR = 2;
my $INDEX_TYPE = $INDEX_DAY; # Saved to type of index
my $COMMA = 0; # Comma delimited output
my $iso8601 = 0;
my $month_num = 0;
my $header = 0;
my $in_seconds = 0;
my $out_seconds = 0;
my %timestr2macstr;
my %file2other;
my %gid2names = ();
my %uid2names = ();
my $_HAS_DATETIME_TIMEZONE = 0;
eval "use DateTime::TimeZone";
if ($@) {
$_HAS_DATETIME_TIMEZONE = 0;
} else {
$_HAS_DATETIME_TIMEZONE = 1;
}
sub get_timezone_list() {
my @t_list;
if ( ! $_HAS_DATETIME_TIMEZONE ) {
return @t_list;
}
foreach ( DateTime::TimeZone->all_names() ) {
push( @t_list, $_ );
}
foreach( keys( %{DateTime::TimeZone->links()}) ) {
push( @t_list, $_ );
}
return sort { $a cmp $b } @t_list;
}
usage() if (scalar(@ARGV) == 0);
while ((scalar(@ARGV) > 0) && (($_ = $ARGV[0]) =~ /^-(.)(.*)/)) {
# Body File
if (/^-b$/) {
shift(@ARGV);
if (defined $ARGV[0]) {
$BODY = $ARGV[0];
}
else {
print "-b requires body file argument\n";
}
}
elsif (/^-d$/) {
$COMMA = 1;
}
# Group File
elsif (/^-g$/) {
shift(@ARGV);
if (defined $ARGV[0]) {
&'load_group_info($ARGV[0]);
$GROUP = $ARGV[0];
}
else {
print "-g requires group file argument\n";
usage();
}
}
# Password File
elsif (/^-p$/) {
shift(@ARGV);
if (defined $ARGV[0]) {
&'load_passwd_info($ARGV[0]);
$PASSWD = $ARGV[0];
}
else {
print "-p requires password file argument\n";
usage();
}
}
elsif (/^-h$/) {
$header = 1;
}
# Index File
elsif (/^-i$/) {
shift(@ARGV);
if (defined $ARGV[0]) {
if ($INDEX ne "") {
print "Only one -i argument can be supplied\n";
usage();
}
# Find out what type
if ($ARGV[0] eq "day") {
$INDEX_TYPE = $INDEX_DAY;
}
elsif ($ARGV[0] eq "hour") {
$INDEX_TYPE = $INDEX_HOUR;
}
shift(@ARGV);
unless (defined $ARGV[0]) {
print "-i requires index file argument\n";
usage();
}
$INDEX = $ARGV[0];
}
else {
print "-i requires index file argument and type\n";
usage();
}
open(INDEX, ">$INDEX") or die "Can not open $INDEX";
}
elsif (/^-V$/) {
version();
exit(0);
}
elsif (/^-m$/) {
$month_num = 1;
}
elsif (/^-y$/) {
$iso8601 = 1;
}
elsif (/^-z$/) {
shift(@ARGV);
if (defined $ARGV[0]) {
my $tz = "$ARGV[0]";
if ($tz =~ m/^list$/i) {
if ($_HAS_DATETIME_TIMEZONE) {
my $txt = "
-----------------------------------
TIMEZONE LIST
-----------------------------------\n";
foreach ( get_timezone_list() ) {
$txt .= $_ . "\n";
}
print( $txt );
}
else {
print "DateTime module not loaded -- cannot list timezones\n";
}
exit(0);
}
# validate the string if we have DateTime module
elsif ($_HAS_DATETIME_TIMEZONE) {
my $realtz = 0;
foreach ( get_timezone_list() ) {
if ($tz =~ m/^$_$/i) {
$realtz = $_;
last;
}
}
if ($realtz) {
$ENV{TZ} = $realtz;
}
else {
print "invalid timezone provided. Use '-z list' to list valid timezones.\n";
usage();
}
}
# blindly take it otherwise
else {
$ENV{TZ} = $tz;
}
}
else {
print "-z requires the time zone argument\n";
usage();
}
}
else {
print "Unknown option: $_\n";
usage();
}
shift(@ARGV);
}
# Was the time given
if (defined $ARGV[0]) {
my $t_in;
my $t_out;
$TIME = $ARGV[0];
if ($ARGV[0] =~ /\.\./) {
($t_in, $t_out) = split(/\.\./, $ARGV[0]);
}
else {
$t_in = $ARGV[0];
$t_out = 0;
}
$in_seconds = parse_isodate($t_in);
die "Invalid Date: $t_in\n" if ($in_seconds < 0);
if ($t_out) {
$out_seconds = parse_isodate($t_out);
die "Invalid Date: $t_out\n" if ($out_seconds < 0);
}
else {
$out_seconds = 0;
}
}
else {
$in_seconds = 0;
$out_seconds = 0;
}
# Print header info
print_header() if ($header == 1);
# Print the index header
if ($INDEX ne "") {
my $time_str = "";
if ($INDEX_TYPE == $INDEX_DAY) {
$time_str = "Daily";
}
else {
$time_str = "Hourly";
}
if ($BODY ne "") {
print INDEX "$time_str Summary for Timeline of $BODY\n\n";
}
else {
print INDEX "$time_str Summary for Timeline of STDIN\n\n";
}
}
read_body();
print_tl();
################ SUBROUTINES ##################
#convert yyyy-mm-dd string to Unix date
sub parse_isodate {
my $iso_date = shift;
my $sec = 0;
my $min = 0;
my $hour = 0;
my $wday = 0;
my $yday = 0;
if ($iso_date =~ /^(\d\d\d\d)\-(\d\d)\-(\d\d)$/) {
return mktime($sec, $min, $hour, $3, $2 - 1, $1 - 1900, $wday, $yday);
}
elsif ($iso_date =~ /^(\d\d\d\d)\-(\d\d)\-(\d\d)T(\d\d):(\d\d):(\d\d)$/) {
return mktime($6, $5, $4, $3, $2 - 1, $1 - 1900, $wday, $yday);
}
else {
return -1;
}
}
# Read the body file from the BODY variable
sub read_body {
# Read the body file from STDIN or the -b specified body file
if ($BODY ne "") {
open(BODY, "<$BODY") or die "Can't open $BODY";
}
else {
open(BODY, "<&STDIN") or die "Can't dup STDIN";
}
while (<BODY>) {
next if ((/^\#/) || (/^\s+$/));
chomp;
my (
$tmp1, $file, $st_ino, $st_ls,
$st_uid, $st_gid, $st_size, $st_atime,
$st_mtime, $st_ctime, $st_crtime, $tmp2
)
= &tm_split($_);
# Sanity check so that we ignore the header entries
next unless ((defined $st_ino) && ($st_ino =~ /[\d-]+/));
next unless ((defined $st_uid) && ($st_uid =~ /\d+/));
next unless ((defined $st_gid) && ($st_gid =~ /\d+/));
next unless ((defined $st_size) && ($st_size =~ /\d+/));
next unless ((defined $st_mtime) && ($st_mtime =~ /\d+/));
next unless ((defined $st_atime) && ($st_atime =~ /\d+/));
next unless ((defined $st_ctime) && ($st_ctime =~ /\d+/));
next unless ((defined $st_crtime) && ($st_crtime =~ /\d+/));
# we need *some* value in mactimes!
next if (!$st_atime && !$st_mtime && !$st_ctime && !$st_crtime);
# Skip if these are all too early
next
if ( ($st_mtime < $in_seconds)
&& ($st_atime < $in_seconds)
&& ($st_ctime < $in_seconds)
&& ($st_crtime < $in_seconds));
# add leading zeros to timestamps because we will later sort
# these using a string-based comparison
$st_mtime = sprintf("%.10d", $st_mtime);
$st_atime = sprintf("%.10d", $st_atime);
$st_ctime = sprintf("%.10d", $st_ctime);
$st_crtime = sprintf("%.10d", $st_crtime);
# Put all the times in one big array along with the inode and
# name (they are used in the final sorting)
# If the date on the file is too old, don't put it in the array
my $post = ",$st_ino,$file";
if ($out_seconds) {
$timestr2macstr{"$st_mtime$post"} .= "m"
if (
($st_mtime >= $in_seconds)
&& ($st_mtime < $out_seconds)
&& ( (!(exists $timestr2macstr{"$st_mtime$post"}))
|| ($timestr2macstr{"$st_mtime$post"} !~ /m/))
);
$timestr2macstr{"$st_atime$post"} .= "a"
if (
($st_atime >= $in_seconds)
&& ($st_atime < $out_seconds)
&& ( (!(exists $timestr2macstr{"$st_atime$post"}))
|| ($timestr2macstr{"$st_atime$post"} !~ /a/))
);
$timestr2macstr{"$st_ctime$post"} .= "c"
if (
($st_ctime >= $in_seconds)
&& ($st_ctime < $out_seconds)
&& ( (!(exists $timestr2macstr{"$st_ctime$post"}))
|| ($timestr2macstr{"$st_ctime$post"} !~ /c/))
);
$timestr2macstr{"$st_crtime$post"} .= "b"
if (
($st_crtime >= $in_seconds)
&& ($st_crtime < $out_seconds)
&& ( (!(exists $timestr2macstr{"$st_crtime$post"}))
|| ($timestr2macstr{"$st_crtime$post"} !~ /b/))
);
}
else {
$timestr2macstr{"$st_mtime$post"} .= "m"
if (
($st_mtime >= $in_seconds)
&& ( (!(exists $timestr2macstr{"$st_mtime$post"}))
|| ($timestr2macstr{"$st_mtime$post"} !~ /m/))
);
$timestr2macstr{"$st_atime$post"} .= "a"
if (
($st_atime >= $in_seconds)
&& ( (!(exists $timestr2macstr{"$st_atime$post"}))
|| ($timestr2macstr{"$st_atime$post"} !~ /a/))
);
$timestr2macstr{"$st_ctime$post"} .= "c"
if (
($st_ctime >= $in_seconds)
&& ( (!(exists $timestr2macstr{"$st_ctime$post"}))
|| ($timestr2macstr{"$st_ctime$post"} !~ /c/))
);
$timestr2macstr{"$st_crtime$post"} .= "b"
if (
($st_crtime >= $in_seconds)
&& ( (!(exists $timestr2macstr{"$st_crtime$post"}))
|| ($timestr2macstr{"$st_crtime$post"} !~ /b/))
);
}
# if the UID or GID is not in the array then add it.
# these are filled if the -p or -g options are given
$uid2names{$st_uid} = $st_uid
unless (defined $uid2names{$st_uid});
$gid2names{$st_gid} = $st_gid
unless (defined $gid2names{$st_gid});
#
# put /'s between multiple UID/GIDs
#
$uid2names{$st_uid} =~ s@\s@/@g;
$gid2names{$st_gid} =~ s@\s@/@g;
$file2other{$file} =
"$st_ls:$uid2names{$st_uid}:$gid2names{$st_gid}:$st_size";
}
close BODY;
} # end of read_body
sub print_header {
return if ($header == 0);
print "The Sleuth Kit mactime Timeline\n";
print "Input Source: ";
if ($BODY eq "") {
print "STDIN\n";
}
else {
print "$BODY\n";
}
print "Time: $TIME\t\t" if ($TIME ne "");
if ($ENV{TZ} eq "") {
print "\n";
}
else {
print "Timezone: $ENV{TZ}\n";
}
print "passwd File: $PASSWD" if ($PASSWD ne "");
if ($GROUP ne "") {
print "\t" if ($PASSWD ne "");
print "group File: $GROUP";
}
print "\n" if (($PASSWD ne "") || ($GROUP ne ""));
print "\n";
}
#
# Print the time line
#
sub print_tl {
my $prev_day = ""; # has the format of 'day day_week mon year'
my $prev_hour = ""; # has just the hour and is used for hourly index
my $prev_time = 0;
my $prev_cnt = 0;
my $old_date_string = "";
my $delim = ":";
if ($COMMA != 0) {
print "Date,Size,Type,Mode,UID,GID,Meta,File Name\n";
$delim = ",";
}
# Cycle through the files and print them in sorted order.
# Note that we sort using a string comparison because the keys
# also contain the inode and file name
for my $key (sort { $a cmp $b } keys %timestr2macstr) {
my $time;
my $inode;
my $file;
if ($key =~ /^(\d+),([\d-]+),(.*)$/) {
$time = $1;
$inode = $2;
$file = $3;
}
else {
next;
}
my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
if ($iso8601) {
($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
gmtime($time);
}
else {
($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
localtime($time);
}
# the month here is 0-11, not 1-12, like what we want
$mon++;
print
"\t($sec,$min,$hour,MDay: $mday,M: $mon,$year,$wday,$yday,$isdst) = ($time)\n"
if $debug;
#
# cosmetic change to make it look like unix dates
#
$mon = "0$mon" if $mon < 10;
$mday = "0$mday" if $mday < 10;
$hour = "0$hour" if $hour < 10;
$min = "0$min" if $min < 10;
$sec = "0$sec" if $sec < 10;
my $yeart = $year + 1900;
# How do we print the date?
#
my $date_string;
if ($iso8601) {
if ($time == 0) {
$date_string = "0000-00-00T00:00:00Z";
}
else {
$date_string =
"$yeart-$mon-${mday}T$hour:$min:${sec}Z";
}
}
else {
if ($time == 0) {
$date_string = "Xxx Xxx 00 0000 00:00:00";
}
elsif ($month_num) {
$date_string =
"$digit_to_day{$wday} $mon $mday $yeart $hour:$min:$sec";
}
else {
$date_string =
"$digit_to_day{$wday} $digit_to_month{$mon} $mday $yeart $hour:$min:$sec";
}
}
#
# However, we only print the date if it's different from the one
# above. We need to fill the empty space with blanks, though.
#
if ($old_date_string eq $date_string) {
if ($iso8601) {
$date_string = " ";
}
else {
$date_string = " ";
}
$prev_cnt++
if ($INDEX ne "");
}
else {
$old_date_string = $date_string;
# Indexing code
if ($INDEX ne "") {
# First time it is run
if ($prev_day eq "") {
$prev_day = "$mday $wday $mon $yeart";
$prev_hour = $hour;
$prev_time = $time;
$prev_cnt = 0;
}
# A new day, so print the results
elsif ($prev_day ne "$mday $wday $mon $yeart") {
my @prev_vals = split(/ /, $prev_day);
my $date_str;
if ($month_num) {
$date_str =
"$digit_to_day{$prev_vals[1]} "
. "$prev_vals[2] "
. "$prev_vals[0] ${prev_vals[3]}";
}
else {
$date_str =
"$digit_to_day{$prev_vals[1]} "
. "$digit_to_month{$prev_vals[2]} "
. "$prev_vals[0] ${prev_vals[3]}";
}
$date_str .= " $prev_hour:00:00"
if ($INDEX_TYPE == $INDEX_HOUR);
print INDEX "${date_str}${delim} $prev_cnt\n" if ($prev_time > 0);
# Reset
$prev_cnt = 0;
$prev_day = "$mday $wday $mon $yeart";
$prev_hour = $hour;
$prev_time = $time;
}
# Same day, but new hour
elsif (($INDEX_TYPE == $INDEX_HOUR) && ($prev_hour != $hour)) {
my @prev_vals = split(/ /, $prev_day);
if ($month_num) {
print INDEX "$digit_to_day{$prev_vals[1]} "
. "$prev_vals[2] "
. "$prev_vals[0] ${prev_vals[3]} "
. "$prev_hour:00:00${delim} $prev_cnt\n"
if ($prev_time > 0);
}
else {
print INDEX "$digit_to_day{$prev_vals[1]} "
. "$digit_to_month{$prev_vals[2]} "
. "$prev_vals[0] ${prev_vals[3]} "
. "$prev_hour:00:00${delim} $prev_cnt\n"
if ($prev_time > 0);
}
# Reset
$prev_cnt = 0;
$prev_hour = $hour;
$prev_time = $time;
}
$prev_cnt++;
}
}
#
# Muck around with the [mac]times string to make it pretty.
#
my $mactime_tmp = $timestr2macstr{$key};
my $mactime = "";
if ($mactime_tmp =~ /m/) {
$mactime = "m";
}
else {
$mactime = ".";
}
if ($mactime_tmp =~ /a/) {
$mactime .= "a";
}
else {
$mactime .= ".";
}
if ($mactime_tmp =~ /c/) {
$mactime .= "c";
}
else {
$mactime .= ".";
}
if ($mactime_tmp =~ /b/) {
$mactime .= "b";
}
else {
$mactime .= ".";
}
my ($ls, $uids, $groups, $size) = split(/:/, $file2other{$file});
print "FILE: $file MODES: $ls U: $uids G: $groups S: $size\n"
if $debug;
if ($COMMA == 0) {
printf("%s %8s %3s %s %-8s %-8s %-8s %s\n",
$date_string, $size, $mactime, $ls, $uids, $groups, $inode,
$file);
}
else {
# escape any quotes in filename
my $file_tmp = $file;
$file_tmp =~ s/\"/\"\"/g;
printf("%s,%s,%s,%s,%s,%s,%s,\"%s\"\n",
$old_date_string, $size, $mactime, $ls, $uids, $groups, $inode,
$file_tmp);
}
}
# Finish the index page for the last entry
if (($INDEX ne "") && ($prev_cnt > 0)) {
my @prev_vals = split(/ /, $prev_day);
my $date_str;
if ($month_num) {
$date_str =
"$digit_to_day{$prev_vals[1]} "
. "$prev_vals[2] "
. "$prev_vals[0] ${prev_vals[3]}";
}
else {
$date_str =
"$digit_to_day{$prev_vals[1]} "
. "$digit_to_month{$prev_vals[2]} "
. "$prev_vals[0] ${prev_vals[3]}";
}
$date_str .= " $prev_hour:00:00"
if ($INDEX_TYPE == $INDEX_HOUR);
print INDEX "${date_str}${delim} $prev_cnt\n" if ($prev_time > 0);
close INDEX;
}
}
#
# Routines for reading and caching user and group information. These
# are used in multiple programs... it caches the info once, then hopefully
# won't be used again.
#
# Steve Romig, May 1991.
#
# Provides a bunch of routines and a bunch of arrays. Routines
# (and their usage):
#
# load_passwd_info($use_getent, $file_name)
#
# loads user information into the %uname* and %uid* arrays
# (see below).
#
# If $use_getent is non-zero:
# get the info via repeated 'getpwent' calls. This can be
# *slow* on some hosts, especially if they are running as a
# YP (NIS) client.
# If $use_getent is 0:
# if $file_name is "", then get the info from reading the
# results of "ypcat passwd" and from /etc/passwd. Otherwise,
# read the named file. The file should be in passwd(5)
# format.
#
# load_group_info($use_gentent, $file_name)
#
# is similar to load_passwd_info.
#
# Information is stored in several convenient associative arrays:
#
# %uid2names Assoc array, indexed by uid, value is list of
# user names with that uid, in form "name name
# name...".
#
# %gid2members Assoc array, indexed by gid, value is list of
# group members in form "name name name..."
#
# %gname2gid Assoc array, indexed by group name, value is
# matching gid.
#
# %gid2names Assoc array, indexed by gid, value is the
# list of group names with that gid in form
# "name name name...".
#
# You can also use routines named the same as the arrays - pass the index
# as the arg, get back the value. If you use this, get{gr|pw}{uid|gid|nam}
# will be used to lookup entries that aren't found in the cache.
#
# To be done:
# probably ought to add routines to deal with full names.
# maybe there ought to be some anal-retentive checking of password
# and group entries.
# probably ought to cache get{pw|gr}{nam|uid|gid} lookups also.
# probably ought to avoid overwriting existing entries (eg, duplicate
# names in password file would collide in the tables that are
# indexed by name).
#
# Disclaimer:
# If you use YP and you use netgroup entries such as
# +@servers::::::
# +:*:::::/usr/local/utils/messages
# then loading the password file in with &load_passwd_info(0) will get
# you mostly correct YP stuff *except* that it won't do the password and
# shell substitutions as you'd expect. You might want to use
# &load_passwd_info(1) instead to use getpwent calls to do the lookups,
# which would be more correct.
#
#
# minor changes to make it fit with the TCT program, 9/25/99, - dan
# A whole lot removed to clean it up for TSK - July 2008 - Brian
#
package main;
my $passwd_loaded = 0; # flags to use to avoid reloading everything
my $group_loaded = 0; # unnecessarily...
#
# Update user information for the user named $name. We cache the password,
# uid, login group, home directory and shell.
#
sub add_pw_info {
my ($name, $tmp, $uid) = @_;
if ((defined $name) && ($name ne "")) {
if ((defined $uid) && ($uid ne "")) {
if (defined($uid2names{$uid})) {
$uid2names{$uid} .= " $name";
}
else {
$uid2names{$uid} = $name;
}
}
}
}
#
# Update group information for the group named $name. We cache the gid
# and the list of group members.
#
sub add_gr_info {
my ($name, $tmp, $gid) = @_;
if ((defined $name) && ($name ne "")) {
if ((defined $gid) && ($gid ne "")) {
if (defined($gid2names{$gid})) {
$gid2names{$gid} .= " $name";
}
else {
$gid2names{$gid} = $name;
}
}
}
}
sub load_passwd_info {
my ($file_name) = @_;
my (@pw_info);
if ($passwd_loaded) {
return;
}
$passwd_loaded = 1;
open(FILE, $file_name)
|| die "can't open $file_name";
while (<FILE>) {
chop;
if ($_ !~ /^\+/) {
&add_pw_info(split(/:/));
}
}
close(FILE);
}
sub load_group_info {
my ($file_name) = @_;
my (@gr_info);
if ($group_loaded) {
return;
}
$group_loaded = 1;
open(FILE, $file_name)
|| die "can't open $file_name";
while (<FILE>) {
chop;
if ($_ !~ /^\+/) {
&add_gr_info(split(/:/));
}
}
close(FILE);
}
#
# Split a time machine record.
#
sub tm_split {
my ($line) = @_;
my (@fields);
for (@fields = split(/\|/, $line)) {
s/%([A-F0-9][A-F0-9])/pack("C", hex($1))/egis;
}
return @fields;
}
1;
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