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#!/usr/bin/perl
=head1 NAME
Debconf::TmpFile - temporary file creator
=cut
package Debconf::TmpFile;
use strict;
use IO::File;
use Fcntl;
=head1 DESCRIPTION
This module helps debconf make safe temporary files. At least, I think
they're safe, if /tmp is not on NFS.
=head1 METHODS
=over 4
=item open
Open a temporary file for writing. Returns an open file descriptor.
Optionally a file extension may be passed to it.
=cut
my $filename;
sub open {
my $fh; # will be autovivified
my $ext=shift || '';
do { $filename=POSIX::tmpnam().$ext }
until sysopen($fh, $filename, O_WRONLY|O_TRUNC|O_CREAT|O_EXCL, 0600);
return $fh;
}
=item filename
Returns the name of the last opened temp file.
=cut
sub filename {
return $filename;
}
=item cleanup
Unlinks the last opened tempfile.
=cut
sub cleanup {
unlink $filename;
}
=back
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut
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