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dpavlin |
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#!/usr/bin/perl |
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#============================================================= -*-perl-*- |
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# |
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dpavlin |
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# BackupPC_tarIncCreate: create a tar archive of an existing incremental dump |
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# |
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dpavlin |
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# |
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# DESCRIPTION |
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dpavlin |
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# Usage: BackupPC_tarIncCreate [options] files/directories... |
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dpavlin |
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# |
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# Flags: |
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# Required options: |
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# |
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# -h host Host from which the tar archive is created. |
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# -n dumpNum Dump number from which the tar archive is created. |
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# A negative number means relative to the end (eg -1 |
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# means the most recent dump, -2 2nd most recent etc). |
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# -s shareName Share name from which the tar archive is created. |
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# |
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# Other options: |
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# -t print summary totals |
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# -r pathRemove path prefix that will be replaced with pathAdd |
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# -p pathAdd new path prefix |
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# -b BLOCKS BLOCKS x 512 bytes per record (default 20; same as tar) |
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# -w writeBufSz write buffer size (default 1MB) |
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# |
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# The -h, -n and -s options specify which dump is used to generate |
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# the tar archive. The -r and -p options can be used to relocate |
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# the paths in the tar archive so extracted files can be placed |
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# in a location different from their original location. |
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# |
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# AUTHOR |
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# Craig Barratt <cbarratt@users.sourceforge.net> |
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# |
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# COPYRIGHT |
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# Copyright (C) 2001-2003 Craig Barratt |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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#======================================================================== |
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# |
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# Version 2.1.0, released 20 Jun 2004. |
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# |
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# See http://backuppc.sourceforge.net. |
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# |
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#======================================================================== |
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use strict; |
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no utf8; |
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use lib "__INSTALLDIR__/lib"; |
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use File::Path; |
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use Getopt::Std; |
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use DBI; |
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use BackupPC::Lib; |
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use BackupPC::Attrib qw(:all); |
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use BackupPC::FileZIO; |
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use BackupPC::View; |
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use BackupPC::SearchLib; |
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use Data::Dumper; |
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die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) ); |
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my $TopDir = $bpc->TopDir(); |
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my $BinDir = $bpc->BinDir(); |
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my %Conf = $bpc->Conf(); |
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my @DBCache; |
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my $db_done = 0; |
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my %opts; |
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if ( !getopts("th:n:p:r:s:b:w:", \%opts) || @ARGV < 1 ) { |
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print STDERR <<EOF; |
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usage: $0 [options] files/directories... |
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Required options: |
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-h host host from which the tar archive is created |
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-n dumpNum dump number from which the tar archive is created |
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A negative number means relative to the end (eg -1 |
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means the most recent dump, -2 2nd most recent etc). |
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-s shareName share name from which the tar archive is created |
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Other options: |
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-t print summary totals |
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-r pathRemove path prefix that will be replaced with pathAdd |
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-p pathAdd new path prefix |
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-b BLOCKS BLOCKS x 512 bytes per record (default 20; same as tar) |
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-w writeBufSz write buffer size (default 1048576 = 1MB) |
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EOF |
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exit(1); |
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} |
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if ( $opts{h} !~ /^([\w\.\s-]+)$/ ) { |
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print(STDERR "$0: bad host name '$opts{h}'\n"); |
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exit(1); |
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} |
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my $Host = $opts{h}; |
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if ( $opts{n} !~ /^(-?\d+)$/ ) { |
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print(STDERR "$0: bad dump number '$opts{n}'\n"); |
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exit(1); |
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} |
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my $Num = $opts{n}; |
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my @Backups = $bpc->BackupInfoRead($Host); |
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my $FileCnt = 0; |
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my $ByteCnt = 0; |
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my $DirCnt = 0; |
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my $SpecialCnt = 0; |
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my $ErrorCnt = 0; |
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my $i; |
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$Num = $Backups[@Backups + $Num]{num} if ( -@Backups <= $Num && $Num < 0 ); |
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for ( $i = 0 ; $i < @Backups ; $i++ ) { |
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last if ( $Backups[$i]{num} == $Num ); |
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} |
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if ( $i >= @Backups ) { |
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print(STDERR "$0: bad backup number $Num for host $Host\n"); |
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exit(1); |
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} |
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my $PathRemove = $1 if ( $opts{r} =~ /(.+)/ ); |
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my $PathAdd = $1 if ( $opts{p} =~ /(.+)/ ); |
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if ( $opts{s} !~ /^([\w\s\.\/\$-]+)$/ && $opts{s} ne "*" ) { |
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print(STDERR "$0: bad share name '$opts{s}'\n"); |
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exit(1); |
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} |
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our $ShareName = $opts{s}; |
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our $view = BackupPC::View->new($bpc, $Host, \@Backups); |
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# |
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# This constant and the line of code below that uses it are borrowed |
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# from Archive::Tar. Thanks to Calle Dybedahl and Stephen Zander. |
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# See www.cpan.org. |
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# |
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# Archive::Tar is Copyright 1997 Calle Dybedahl. All rights reserved. |
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# Copyright 1998 Stephen Zander. All rights reserved. |
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# |
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my $tar_pack_header |
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= 'a100 a8 a8 a8 a12 a12 A8 a1 a100 a6 a2 a32 a32 a8 a8 a155 x12'; |
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my $tar_header_length = 512; |
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my $BufSize = $opts{w} || 1048576; # 1MB or 2^20 |
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my $WriteBuf = ""; |
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my $WriteBufSz = ($opts{b} || 20) * $tar_header_length; |
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my(%UidCache, %GidCache); |
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my(%HardLinkExtraFiles, @HardLinks); |
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# |
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# Write out all the requested files/directories |
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# |
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binmode(STDOUT); |
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my $fh = *STDOUT; |
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if ( $ShareName eq "*" ) { |
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my $PathRemoveOrig = $PathRemove; |
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my $PathAddOrig = $PathAdd; |
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foreach $ShareName ( $view->shareList($Num) ) { |
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#print(STDERR "Doing share ($ShareName)\n"); |
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$PathRemove = "/" if ( !defined($PathRemoveOrig) ); |
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($PathAdd = "/$ShareName/$PathAddOrig") =~ s{//+}{/}g; |
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foreach my $dir ( @ARGV ) { |
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archiveWrite($fh, $dir); |
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} |
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archiveWriteHardLinks($fh); |
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} |
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} else { |
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foreach my $dir ( @ARGV ) { |
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archiveWrite($fh, $dir); |
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} |
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archiveWriteHardLinks($fh); |
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} |
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# |
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# Finish with two null 512 byte headers, and then round out a full |
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# block. |
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# |
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my $data = "\0" x ($tar_header_length * 2); |
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TarWrite($fh, \$data); |
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TarWrite($fh, undef); |
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# |
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# print out totals if requested |
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# |
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if ( $opts{t} ) { |
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print STDERR "Done: $FileCnt files, $ByteCnt bytes, $DirCnt dirs,", |
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" $SpecialCnt specials, $ErrorCnt errors\n"; |
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} |
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if ( $ErrorCnt && !$FileCnt && !$DirCnt ) { |
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# |
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# Got errors, with no files or directories; exit with non-zero |
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# status |
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# |
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exit(1); |
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} |
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exit(0); |
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########################################################################### |
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# Subroutines |
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########################################################################### |
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sub archiveWrite |
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{ |
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my($fh, $dir, $tarPathOverride) = @_; |
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if ( $dir =~ m{(^|/)\.\.(/|$)} ) { |
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print(STDERR "$0: bad directory '$dir'\n"); |
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$ErrorCnt++; |
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return; |
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} |
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$dir = "/" if ( $dir eq "." ); |
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#print(STDERR "calling find with $Num, $ShareName, $dir\n"); |
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if ( $view->find($Num, $ShareName, $dir, 0, \&TarWriteFile, |
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$fh, $tarPathOverride) < 0 ) { |
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print(STDERR "$0: bad share or directory '$ShareName/$dir'\n"); |
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$ErrorCnt++; |
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return; |
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} |
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} |
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# |
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# Write out any hardlinks (if any) |
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# |
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sub archiveWriteHardLinks |
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{ |
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my $fh = @_; |
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foreach my $hdr ( @HardLinks ) { |
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$hdr->{size} = 0; |
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if ( defined($PathRemove) |
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&& substr($hdr->{linkname}, 0, length($PathRemove)+1) |
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eq ".$PathRemove" ) { |
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substr($hdr->{linkname}, 0, length($PathRemove)+1) = ".$PathAdd"; |
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} |
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TarWriteFileInfo($fh, $hdr); |
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} |
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@HardLinks = (); |
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%HardLinkExtraFiles = (); |
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} |
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sub UidLookup |
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{ |
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my($uid) = @_; |
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$UidCache{$uid} = (getpwuid($uid))[0] if ( !exists($UidCache{$uid}) ); |
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return $UidCache{$uid}; |
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} |
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sub GidLookup |
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{ |
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my($gid) = @_; |
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$GidCache{$gid} = (getgrgid($gid))[0] if ( !exists($GidCache{$gid}) ); |
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return $GidCache{$gid}; |
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} |
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sub TarWrite |
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{ |
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my($fh, $dataRef) = @_; |
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if ( !defined($dataRef) ) { |
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# |
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# do flush by padding to a full $WriteBufSz |
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# |
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my $data = "\0" x ($WriteBufSz - length($WriteBuf)); |
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$dataRef = \$data; |
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} |
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if ( length($WriteBuf) + length($$dataRef) < $WriteBufSz ) { |
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# |
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# just buffer and return |
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# |
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$WriteBuf .= $$dataRef; |
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return; |
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} |
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my $done = $WriteBufSz - length($WriteBuf); |
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if ( syswrite($fh, $WriteBuf . substr($$dataRef, 0, $done)) |
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!= $WriteBufSz ) { |
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print(STDERR "Unable to write to output file ($!)\n"); |
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exit(1); |
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} |
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while ( $done + $WriteBufSz <= length($$dataRef) ) { |
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if ( syswrite($fh, substr($$dataRef, $done, $WriteBufSz)) |
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!= $WriteBufSz ) { |
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print(STDERR "Unable to write to output file ($!)\n"); |
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exit(1); |
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} |
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$done += $WriteBufSz; |
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} |
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$WriteBuf = substr($$dataRef, $done); |
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} |
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sub TarWritePad |
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{ |
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my($fh, $size) = @_; |
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304 |
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if ( $size % $tar_header_length ) { |
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my $data = "\0" x ($tar_header_length - ($size % $tar_header_length)); |
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TarWrite($fh, \$data); |
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} |
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} |
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sub TarWriteHeader |
311 |
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{ |
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my($fh, $hdr) = @_; |
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$hdr->{uname} = UidLookup($hdr->{uid}) if ( !defined($hdr->{uname}) ); |
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$hdr->{gname} = GidLookup($hdr->{gid}) if ( !defined($hdr->{gname}) ); |
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my $devmajor = defined($hdr->{devmajor}) ? sprintf("%07o", $hdr->{devmajor}) |
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: ""; |
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my $devminor = defined($hdr->{devminor}) ? sprintf("%07o", $hdr->{devminor}) |
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: ""; |
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my $sizeStr; |
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if ( $hdr->{size} >= 2 * 65536 * 65536 ) { |
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# |
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# GNU extension for files >= 8GB: send size in big-endian binary |
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# |
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$sizeStr = pack("c4 N N", 0x80, 0, 0, 0, |
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$hdr->{size} / (65536 * 65536), |
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$hdr->{size} % (65536 * 65536)); |
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} elsif ( $hdr->{size} >= 1 * 65536 * 65536 ) { |
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# |
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# sprintf octal only handles up to 2^32 - 1 |
331 |
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# |
332 |
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$sizeStr = sprintf("%03o", $hdr->{size} / (1 << 24)) |
333 |
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. sprintf("%08o", $hdr->{size} % (1 << 24)); |
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} else { |
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$sizeStr = sprintf("%011o", $hdr->{size}); |
336 |
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} |
337 |
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my $data = pack($tar_pack_header, |
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substr($hdr->{name}, 0, 99), |
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sprintf("%07o", $hdr->{mode}), |
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sprintf("%07o", $hdr->{uid}), |
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sprintf("%07o", $hdr->{gid}), |
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$sizeStr, |
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sprintf("%011o", $hdr->{mtime}), |
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"", #checksum field - space padded by pack("A8") |
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$hdr->{type}, |
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substr($hdr->{linkname}, 0, 99), |
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$hdr->{magic} || 'ustar ', |
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$hdr->{version} || ' ', |
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$hdr->{uname}, |
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$hdr->{gname}, |
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$devmajor, |
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$devminor, |
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"" # prefix is empty |
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); |
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substr($data, 148, 7) = sprintf("%06o\0", unpack("%16C*",$data)); |
356 |
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TarWrite($fh, \$data); |
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} |
358 |
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359 |
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sub TarWriteFileInfo |
360 |
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{ |
361 |
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my($fh, $hdr) = @_; |
362 |
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363 |
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# |
364 |
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# Handle long link names (symbolic links) |
365 |
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# |
366 |
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if ( length($hdr->{linkname}) > 99 ) { |
367 |
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my %h; |
368 |
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my $data = $hdr->{linkname} . "\0"; |
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$h{name} = "././\@LongLink"; |
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$h{type} = "K"; |
371 |
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$h{size} = length($data); |
372 |
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TarWriteHeader($fh, \%h); |
373 |
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TarWrite($fh, \$data); |
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TarWritePad($fh, length($data)); |
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} |
376 |
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# |
377 |
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# Handle long file names |
378 |
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# |
379 |
|
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if ( length($hdr->{name}) > 99 ) { |
380 |
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my %h; |
381 |
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my $data = $hdr->{name} . "\0"; |
382 |
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$h{name} = "././\@LongLink"; |
383 |
|
|
$h{type} = "L"; |
384 |
|
|
$h{size} = length($data); |
385 |
|
|
TarWriteHeader($fh, \%h); |
386 |
|
|
TarWrite($fh, \$data); |
387 |
|
|
TarWritePad($fh, length($data)); |
388 |
|
|
} |
389 |
|
|
TarWriteHeader($fh, $hdr); |
390 |
|
|
} |
391 |
|
|
|
392 |
|
|
# |
393 |
|
|
# returns 1 if a given directory has files somewhere under it |
394 |
|
|
# in a given dump of a given share |
395 |
|
|
# |
396 |
|
|
sub checkSubDirs($$$$) { |
397 |
|
|
my ($dir, $share, $host, $dumpNo) = @_; |
398 |
|
|
my $ret; |
399 |
|
|
my $dsn = $Conf{SearchDSN}; |
400 |
|
|
my $db_user = $Conf{SearchUser} || ''; |
401 |
|
|
my $search_sql; |
402 |
|
|
|
403 |
|
|
print(STDERR $dir); |
404 |
|
|
# erase first dot |
405 |
|
|
if (substr($dir, 0, 1) == '.') |
406 |
|
|
{ |
407 |
|
|
$dir = substr($dir, 1, length($dir)); |
408 |
|
|
} |
409 |
|
|
# erase first slash |
410 |
|
|
if (substr($dir, 0, 1) == '/') |
411 |
|
|
{ |
412 |
|
|
$dir = substr($dir, 1, length($dir)); |
413 |
|
|
} |
414 |
|
|
# erase last slash |
415 |
|
|
if (substr($dir, length($dir)-1, 1) == '/') |
416 |
|
|
{ |
417 |
|
|
$dir = substr($dir, 0, length($dir)-1); |
418 |
|
|
} |
419 |
|
|
|
420 |
|
|
if (! $db_done) |
421 |
|
|
{ |
422 |
|
|
print STDERR "doing db..."; |
423 |
|
|
my $search_sql = q{ |
424 |
|
|
SELECT hosts.name, shares.name, startfiles.name, COUNT(files.*) AS subfiles |
425 |
|
|
FROM files startfiles |
426 |
|
|
INNER JOIN shares ON (shares.id=startfiles.shareid) |
427 |
|
|
INNER JOIN hosts ON (hosts.id=shares.hostid) |
428 |
|
|
INNER JOIN backups ON ( |
429 |
|
|
backups.num=startfiles.backupnum AND |
430 |
|
|
backups.hostid=hosts.id AND backups.shareid=shares.id |
431 |
|
|
) |
432 |
|
|
LEFT JOIN files ON ( |
433 |
|
|
files.backupnum=startfiles.backupnum AND |
434 |
|
|
files.shareid=startfiles.shareid AND |
435 |
|
|
files.path LIKE startfiles.path || '/%' AND |
436 |
|
|
files.type<>startfiles.type AND |
437 |
|
|
files.id <> startfiles.id |
438 |
|
|
) |
439 |
|
|
WHERE |
440 |
|
|
hosts.name=? AND |
441 |
|
|
shares.name=? AND |
442 |
|
|
startfiles.type=? AND |
443 |
|
|
startfiles.backupnum=? |
444 |
|
|
GROUP BY hosts.name, shares.name, startfiles.name, startfiles.backupnum; |
445 |
|
|
}; |
446 |
|
|
my $dbh = DBI->connect($dsn, $db_user, "", { RaiseError => 1, AutoCommit => 1} ); |
447 |
|
|
my $sth = $dbh->prepare($search_sql); |
448 |
|
|
$sth->execute($host, $share, BPC_FTYPE_DIR, $dumpNo); |
449 |
|
|
print STDERR "done\n"; |
450 |
|
|
while (my @r_data = $sth->fetchrow_array()) |
451 |
|
|
{ |
452 |
|
|
$DBCache[$r_data[0]][$r_data[1]][$r_data[2]] = 1; |
453 |
|
|
} |
454 |
|
|
|
455 |
|
|
$sth->finish(); |
456 |
|
|
|
457 |
|
|
$DBCache[$host][$share][$dir] = $ret; |
458 |
|
|
$dbh->disconnect(); |
459 |
|
|
$db_done = 1; |
460 |
|
|
} |
461 |
|
|
|
462 |
|
|
if ($DBCache[$host][$share][$dir] != undef && $DBCache[$host][$share][$dir] == 1) |
463 |
|
|
{ |
464 |
|
|
return 1; |
465 |
|
|
} |
466 |
|
|
return 0; |
467 |
|
|
} |
468 |
|
|
|
469 |
|
|
my $Attr; |
470 |
|
|
my $AttrDir; |
471 |
|
|
|
472 |
|
|
sub TarWriteFile |
473 |
|
|
{ |
474 |
|
|
my($hdr, $fh, $tarPathOverride) = @_; |
475 |
|
|
|
476 |
|
|
|
477 |
|
|
my $tarPath = $hdr->{relPath}; |
478 |
|
|
$tarPath = $tarPathOverride if ( defined($tarPathOverride) ); |
479 |
|
|
|
480 |
|
|
$tarPath =~ s{//+}{/}g; |
481 |
|
|
if ( defined($PathRemove) |
482 |
|
|
&& substr($tarPath, 0, length($PathRemove)) eq $PathRemove ) { |
483 |
|
|
substr($tarPath, 0, length($PathRemove)) = $PathAdd; |
484 |
|
|
} |
485 |
|
|
$tarPath = "./" . $tarPath if ( $tarPath !~ /^\.\// ); |
486 |
|
|
$tarPath =~ s{//+}{/}g; |
487 |
|
|
$hdr->{name} = $tarPath; |
488 |
|
|
|
489 |
|
|
if ( $hdr->{type} == BPC_FTYPE_DIR ) { |
490 |
|
|
# |
491 |
|
|
# Directory: just write the header |
492 |
|
|
# |
493 |
|
|
|
494 |
|
|
|
495 |
|
|
$hdr->{name} .= "/" if ( $hdr->{name} !~ m{/$} ); |
496 |
|
|
# check if it has files under it in the database |
497 |
|
|
if ( checkSubDirs($hdr->{path}, $ShareName, $Host, $Num) != 0 ) |
498 |
|
|
{ |
499 |
|
|
TarWriteFileInfo($fh, $hdr); |
500 |
|
|
$DirCnt++; |
501 |
|
|
} |
502 |
|
|
} elsif ( $hdr->{type} == BPC_FTYPE_FILE ) { |
503 |
|
|
# |
504 |
|
|
# Regular file: write the header and file |
505 |
|
|
# |
506 |
|
|
my $f = BackupPC::FileZIO->open($hdr->{fullPath}, 0, $hdr->{compress}); |
507 |
|
|
if ( !defined($f) ) { |
508 |
|
|
print(STDERR "Unable to open file $hdr->{fullPath}\n"); |
509 |
|
|
$ErrorCnt++; |
510 |
|
|
return; |
511 |
|
|
} |
512 |
|
|
TarWriteFileInfo($fh, $hdr); |
513 |
|
|
my($data, $size); |
514 |
|
|
while ( $f->read(\$data, $BufSize) > 0 ) { |
515 |
|
|
TarWrite($fh, \$data); |
516 |
|
|
$size += length($data); |
517 |
|
|
} |
518 |
|
|
$f->close; |
519 |
|
|
TarWritePad($fh, $size); |
520 |
|
|
$FileCnt++; |
521 |
|
|
$ByteCnt += $size; |
522 |
|
|
} elsif ( $hdr->{type} == BPC_FTYPE_HARDLINK ) { |
523 |
|
|
# |
524 |
|
|
# Hardlink file: either write a hardlink or the complete file |
525 |
|
|
# depending upon whether the linked-to file will be written |
526 |
|
|
# to the archive. |
527 |
|
|
# |
528 |
|
|
# Start by reading the contents of the link. |
529 |
|
|
# |
530 |
|
|
my $f = BackupPC::FileZIO->open($hdr->{fullPath}, 0, $hdr->{compress}); |
531 |
|
|
if ( !defined($f) ) { |
532 |
|
|
print(STDERR "Unable to open file $hdr->{fullPath}\n"); |
533 |
|
|
$ErrorCnt++; |
534 |
|
|
return; |
535 |
|
|
} |
536 |
|
|
my $data; |
537 |
|
|
while ( $f->read(\$data, $BufSize) > 0 ) { |
538 |
|
|
$hdr->{linkname} .= $data; |
539 |
|
|
} |
540 |
|
|
$f->close; |
541 |
|
|
# |
542 |
|
|
# Check @ARGV and the list of hardlinked files we have explicity |
543 |
|
|
# dumped to see if we have dumped this file or not |
544 |
|
|
# |
545 |
|
|
my $done = 0; |
546 |
|
|
my $name = $hdr->{linkname}; |
547 |
|
|
$name =~ s{^\./}{/}; |
548 |
|
|
if ( $HardLinkExtraFiles{$name} ) { |
549 |
|
|
$done = 1; |
550 |
|
|
} else { |
551 |
|
|
foreach my $arg ( @ARGV ) { |
552 |
|
|
$arg =~ s{^\./+}{/}; |
553 |
|
|
$arg =~ s{/+$}{}; |
554 |
|
|
$done = 1 if ( $name eq $arg || $name =~ /^\Q$arg\// ); |
555 |
|
|
} |
556 |
|
|
} |
557 |
|
|
if ( $done ) { |
558 |
|
|
# |
559 |
|
|
# Target file will be or was written, so just remember |
560 |
|
|
# the hardlink so we can dump it later. |
561 |
|
|
# |
562 |
|
|
push(@HardLinks, $hdr); |
563 |
|
|
$SpecialCnt++; |
564 |
|
|
} else { |
565 |
|
|
# |
566 |
|
|
# Have to dump the original file. Just call the top-level |
567 |
|
|
# routine, so that we save the hassle of dealing with |
568 |
|
|
# mangling, merging and attributes. |
569 |
|
|
# |
570 |
|
|
$HardLinkExtraFiles{$hdr->{linkname}} = 1; |
571 |
|
|
archiveWrite($fh, $hdr->{linkname}, $hdr->{name}); |
572 |
|
|
} |
573 |
|
|
} elsif ( $hdr->{type} == BPC_FTYPE_SYMLINK ) { |
574 |
|
|
# |
575 |
|
|
# Symbolic link: read the symbolic link contents into the header |
576 |
|
|
# and write the header. |
577 |
|
|
# |
578 |
|
|
my $f = BackupPC::FileZIO->open($hdr->{fullPath}, 0, $hdr->{compress}); |
579 |
|
|
if ( !defined($f) ) { |
580 |
|
|
print(STDERR "Unable to open symlink file $hdr->{fullPath}\n"); |
581 |
|
|
$ErrorCnt++; |
582 |
|
|
return; |
583 |
|
|
} |
584 |
|
|
my $data; |
585 |
|
|
while ( $f->read(\$data, $BufSize) > 0 ) { |
586 |
|
|
$hdr->{linkname} .= $data; |
587 |
|
|
} |
588 |
|
|
$f->close; |
589 |
|
|
$hdr->{size} = 0; |
590 |
|
|
TarWriteFileInfo($fh, $hdr); |
591 |
|
|
$SpecialCnt++; |
592 |
|
|
} elsif ( $hdr->{type} == BPC_FTYPE_CHARDEV |
593 |
|
|
|| $hdr->{type} == BPC_FTYPE_BLOCKDEV |
594 |
|
|
|| $hdr->{type} == BPC_FTYPE_FIFO ) { |
595 |
|
|
# |
596 |
|
|
# Special files: for char and block special we read the |
597 |
|
|
# major and minor numbers from a plain file. |
598 |
|
|
# |
599 |
|
|
if ( $hdr->{type} != BPC_FTYPE_FIFO ) { |
600 |
|
|
my $f = BackupPC::FileZIO->open($hdr->{fullPath}, 0, |
601 |
|
|
$hdr->{compress}); |
602 |
|
|
my $data; |
603 |
|
|
if ( !defined($f) || $f->read(\$data, $BufSize) < 0 ) { |
604 |
|
|
print(STDERR "Unable to open/read char/block special file" |
605 |
|
|
. " $hdr->{fullPath}\n"); |
606 |
|
|
$f->close if ( defined($f) ); |
607 |
|
|
$ErrorCnt++; |
608 |
|
|
return; |
609 |
|
|
} |
610 |
|
|
$f->close; |
611 |
|
|
if ( $data =~ /(\d+),(\d+)/ ) { |
612 |
|
|
$hdr->{devmajor} = $1; |
613 |
|
|
$hdr->{devminor} = $2; |
614 |
|
|
} |
615 |
|
|
} |
616 |
|
|
$hdr->{size} = 0; |
617 |
|
|
TarWriteFileInfo($fh, $hdr); |
618 |
|
|
$SpecialCnt++; |
619 |
|
|
} else { |
620 |
|
|
print(STDERR "Got unknown type $hdr->{type} for $hdr->{name}\n"); |
621 |
|
|
$ErrorCnt++; |
622 |
|
|
} |
623 |
|
|
} |
624 |
dpavlin |
109 |
|