The code below runs successful, but by unzip I got: 
$ unzip k.zip
Archive:  k.zip
warning [k.zip]:  186 extra bytes at beginning or within zipfile
  (attempting to process anyway)
  inflating: from_ram.t

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The file from_ram does exist, but I have to set chmod 666 to extract it. The other file does not exist. What do I have to do, to get both in one zip with permissions set to 0666? http://search.cpan.org/~pmqs/IO-Compress-2.025/lib/IO/Compress/Zip.pm#Constructor_Options says If you are running a Unix derivative this value defaults to 0666 << 16 But it is set to 
---------- 1 user user   7 2010-03-29 08:44 from_ram.t

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even I set it explicit. I'am working with Kubuntu 9.10, perl, v5.10.0, IO::Compress::Zip::VERSION 2.024 
$ file -ik k.zip
k.zip: application/zip; charset=binary

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I can open the zip per double click in konqueror without error. But I also see only the one file. A look in the bytecode of the zip shows both filenames. It goes without saying, that I have checked each zip command separate. 
#!/usr/bin/perl
use strict;
use warnings;
use IO::Compress::Zip qw(zip $ZipError :constants) ;
use diagnostics;


my $zip;
zip './a.txt' => \$zip,
  name        => 'from_filename.t',
  AutoClose   => 1,
  BinModeIn   => 1
  or die "zip failed: $ZipError\n";

my $string = ss();

zip \$string => \$zip,
  name       => 'from_ram.t',
  ExtAttr    => '0666',
  Append     => 1 or die "zip failed: $ZipError\n";

open my $fh, '>','./k.zip' or die "$!";
print $fh $zip;

close($fh);

sub ss {
    return <<END;
a
b
c

END
}

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I know Archive::Zip, but it is no core module, and this one is core and seems to do what I need, if I use it right.

In reply to Build 1 zip from file and string with IO::Compress::Zip by mattk1

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