source: branches/3.2/MondoRescue/bin/mr-label @ 3522

Last change on this file since 3522 was 3522, checked in by bruno, 4 years ago

Important mindi modifications to share ISO and USB code

  • Remove the need for BOOT_SIZE variable now computed automatically
  • Share more params in ISO_OPT
  • Rename TurnTgzIntoRdz? into MakeBootInitFile?
  • Remove sages of old_pwd and cd in functions. if a need to change directory then do it in a subshell especially in PrepareDataDiskImages? and MakeBootInitFile?
  • Remove function ListImagesForUser?
  • Fix a bug related to list analysis with echo where the variable needs to be transformed into list before processing
  • Simplify OfferToMakeBootableISO and OfferToMakeBootableUSB to just deal with interactivity and parameter handling and create a shared function MakeBootableDevice? with a parameter for special treatment. This will allow to fix broken USB support and to avoid that type of issue in the future
  • Suppress as well PrepareBootDiskImage? as content is now supported in the shared MakeBootableDevice?
  • Improve on screen and in log file messages
  • Property svn:executable set to *
File size: 3.8 KB
Line 
1#!/usr/bin/perl -w
2#
3# $Id$
4# Copyright B. Cornec 2005-2014
5# Provided under the GPL v2
6#
7# Get the complete network configuration of the system
8#
9use strict 'vars';
10use ProjectBuilder::Base;
11use ProjectBuilder::Version;
12use Data::Dumper;
13use Getopt::Long qw(:config auto_abbrev no_ignore_case);
14use English;
15
16
17=pod
18
19=head1 NAME
20
21mr-label labelling tool
22
23=head1 DESCRIPTION
24
25mr-label labels VFAT devices or files representing VFAT devices
26
27=head1 SYNOPSIS
28
29mr-label [-v][-h][-L LABEL|-U UUID] device|file
30
31=head1 ARGUMENTS
32
33=over 4
34
35=item B<device|file>
36
37This is the VFAT device or file representing a VFAT device to modify with regards to its label
38
39=back
40
41=head1 OPTIONS
42
43=over 4
44
45=item B<-v|--verbose>
46
47Increase verbosity
48
49=item B<-h|--help>
50
51Print a brief help message and exits.
52
53=item B<--man>
54
55Prints the manual page and exits.
56
57=item B<-L LABEL>
58
59This is the new LABEL to put on the VFAT filesystem
60
61=item B<-U UUID>
62
63This is the new UUID to put on the VFAT filesystem
64
65=back
66
67=head1 WEB SITES
68
69The main Web site of the project is available at L<http://www.mondorescue.org>. Bug reports should be filled using the trac instance of the project at L<http://trac.mondorescue.org/>.
70
71=head1 USER MAILING LIST
72
73For community exchanges around MondoRescue please use the list L<http://sourceforge.net/mailarchive/forum.php?forum_name=mondo-devel>
74
75=head1 AUTHORS
76
77The MondoRescue team lead by Bruno Cornec L<mailto:bruno@mondorescue.org>.
78
79=head1 COPYRIGHT
80
81MondoRescue is distributed under the GPL v2.0 license or later,
82described in the file C<COPYING> included with the distribution.
83
84=cut
85
86# Global variables
87my ($mrver,$mrrev) = pb_version_init();
88my $appname = "mr-label";
89my %opts;                   # CLI Options
90
91# Initialize the syntax string
92
93pb_syntax_init("$appname Version $mrver-$mrrev\n");
94
95GetOptions("help|?|h" => \$opts{'h'}, 
96        "man" => \$opts{'man'},
97        "verbose|v+" => \$opts{'v'},
98        "label|L=s" => \$opts{'L'},
99        "uuid|U=s" => \$opts{'U'},
100) || pb_syntax(-1,0);
101
102if (defined $opts{'h'}) {
103    pb_syntax(0,1);
104}
105if (defined $opts{'man'}) {
106    pb_syntax(0,2);
107}
108if (defined $opts{'v'}) {
109    $pbdebug++;
110}
111pb_log_init($pbdebug, $pbLOG);
112pb_temp_init($pbdebug);
113
114my $label=$opts{'L'};
115my $uuid=$opts{'U'};
116die "Unable no label/uuid defined" if ((not defined $label) && (not defined $uuid));
117
118my $inputf  = $ARGV[0];
119die "$0: no input file defined" if (not defined $inputf);
120
121my($inputfh, $buffer, $offset, $length, $hexlabel);
122
123open($inputfh,  "+< $inputf") || die "$0: cannot open $inputf for reading/writing: $!";
124binmode($inputfh) || die "binmode failed: $!";
125
126if (defined $label) {
127    # 42 first bytes are untouched
128    $offset = 43;
129    $length = 11;
130} elsif (defined $uuid) {
131    # 38 first bytes are untouched
132    $offset = 39;
133    $length = 4;
134} else {
135    die "Nothing to do no label/uuid defined";
136}
137
138if (! seek($inputfh, $offset,0)) {
139    die "Unable to seek $inputf: $!";
140}
141# then read the following bytes
142my $size = read($inputfh, $buffer, $length);
143if ($size != $length) {
144    die "Unable to read existing label/uuid: $!";
145}
146
147if (defined $label) {
148    pb_log(1,"Previous label was ***$buffer***\n");
149} elsif (defined $uuid) {
150    my ($hex) = unpack( 'H*', $buffer );
151    pb_log(1,"Previous hex was ***$hex***\n");
152    my @loc = ($hex =~ m/../g);
153    #print Dumper(@loc);
154    $hex = join('',reverse(@loc));
155    pb_log(1,"Previous uuid was ***$hex***\n");
156} else {
157    die "Nothing to do no label/uuid defined";
158}
159   
160if (defined $label) {
161    $hexlabel=sprintf("%-11s", uc($label));
162    pb_log(1,"New label is ***$hexlabel***\n");
163} elsif (defined $uuid) {
164    # Remove separator
165    $uuid =~ s/-//;
166    pb_log(1,"New uuid is ***$uuid***\n");
167    my @loc = ($uuid =~ m/../g);
168    my $hex = join('',reverse(@loc));
169    ($hexlabel) = pack( 'H*', $hex );
170} else {
171    die "Nothing to do no label/uuid defined";
172}
173# Go back
174seek($inputfh, $offset,0);
175print $inputfh $hexlabel;
176close($inputfh) || die "couldn't close $inputf: $!";
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