| Subject: | Problem extracting empty files |
Consider the code at the end of the message -- all it does is create a tar file with a number of files in it. It then uses Archive::Tar to list its contents. The important point is that one of the files, "fred/c", in the tar is empty. The behaviour I'm seeing is that Archive::Tar seems to think that the empty file is the last thing in the archive.
Here is what I get when I run the script. I assume this isn't expected behaviour?
Archive::Tar version 1.10
Archive contains 4 files
fred/
fred/a
fred/b
fred/c
drwxr-xr-x pmarques/wap 0 2004-07-22 15:00:21 fred/
-rw-r--r-- pmarques/wap 6 2004-07-22 15:10:31 fred/a
-rw-r--r-- pmarques/wap 6 2004-07-22 15:10:31 fred/b
-rw-r--r-- pmarques/wap 0 2004-07-22 15:10:31 fred/c
-rw-r--r-- pmarques/wap 6 2004-07-22 15:10:31 fred/d
-rw-r--r-- pmarques/wap 6 2004-07-22 15:10:31 fred/e
Cheers
Paul
use Archive::Tar ;
use strict;
use warnings;
print "Archive::Tar version $Archive::Tar::VERSION\n" ;
my $archive = 'fred.tar';
my $dir = 'fred';
mkdir $dir ;
system "echo hello >$dir/a" ;
system "echo hello >$dir/b" ;
system "touch $dir/c" ;
system "echo hello >$dir/d" ;
system "echo hello >$dir/e" ;
system "tar cf $archive $dir" ;
my $tar = Archive::Tar->new;
my $count = $tar->read($archive);
print "Archive contains $count files\n"; my @list = $tar->list_files(); print "\t$_\n" foreach @list ;
print "\n";
system "tar tvf $archive" ;
$ perl -V
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
Platform:
osname=linux, osvers=2.4.21-1.1931.2.393.entsmp, archname=i386-linux-thread-multi
uname='linux por'
config_args='-des -Doptimize=-O2 -g -pipe -march=i386 -mcpu=i686 -Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -Dotherlibdirs=/usr/lib/perl5/5.8.0 -Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr'
hint=recommended, useposix=true, d_sigaction=define
usethreads=define use5005threads=undef'
useithreads=define usemultiplicity=
useperlio= d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=un uselongdouble=
usemymalloc=, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
optimize='',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING -fno-strict-aliasing -I/usr/local/include -I/usr/include/gdbm'
ccversion='', gccversion='3.2.3 20030502 (Red Hat Linux 3.2.3-19)', gccosandvers=''
gccversion='3.2.3 200305'
intsize=o, longsize=s, ptrsize=l, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long'
k', ivsize=4'
ivtype, nvtype='double'
o_no', nvsize=, Off_t='', lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='gcc'
l', ldflags =' -L/usr/local/lib'
ldflags_use'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -lgdbm -ldb -ldl -lm -lpthread -lc -lcrypt -lutil
perllibs=
libc=/lib/libc-2.3.2.so, so=so, useshrplib=true, libperl=libper
gnulibc_version='2.3.2'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so', d_dlsymun=undef, ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE'
cccdlflags='-fPIC'
ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5', lddlflags='s Unicode/Normalize XS/A'
Characteristics of this binary (from libperl):
Compile-time options: DEBUGGING MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT
Locally applied patches:
MAINT18379
Built under linux
Compiled at Sep 15 2003 10:03:52
%ENV:
PERL5LIB="/workspace3/tmp/marquess/tmp-install/lib/perl5/5.8.0/:/workspace3/tmp/marquess/tmp-install/lib/perl5/site_perl/:/mine/perl/lib/site_perl:/mine/perl/lib/:/users/pmarques/perl5lib"
@INC:
/workspace3/tmp/marquess/tmp-install/lib/perl5/5.8.0//i386-linux-thread-multi
/workspace3/tmp/marquess/tmp-install/lib/perl5/5.8.0/
/workspace3/tmp/marquess/tmp-install/lib/perl5/site_perl//5.8.0/i386-linux-thread-multi
/workspace3/tmp/marquess/tmp-install/lib/perl5/site_perl//5.8.0
/workspace3/tmp/marquess/tmp-install/lib/perl5/site_perl/
/mine/perl/lib/site_perl
/mine/perl/lib/
/users/pmarques/perl5lib
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0
.