116 lines
2.3 KiB
Perl
116 lines
2.3 KiB
Perl
##
|
|
## Package to read/write on ASCII data connections
|
|
##
|
|
|
|
package Net::FTP::A;
|
|
|
|
use 5.008001;
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Carp;
|
|
use Net::FTP::dataconn;
|
|
|
|
our @ISA = qw(Net::FTP::dataconn);
|
|
our $VERSION = "3.11";
|
|
|
|
our $buf;
|
|
|
|
sub read {
|
|
my $data = shift;
|
|
local *buf = \$_[0];
|
|
shift;
|
|
my $size = shift || croak 'read($buf,$size,[$offset])';
|
|
my $timeout = @_ ? shift: $data->timeout;
|
|
|
|
if (length(${*$data}) < $size && !${*$data}{'net_ftp_eof'}) {
|
|
my $blksize = ${*$data}{'net_ftp_blksize'};
|
|
$blksize = $size if $size > $blksize;
|
|
|
|
my $l = 0;
|
|
my $n;
|
|
|
|
READ:
|
|
{
|
|
my $readbuf = defined(${*$data}{'net_ftp_cr'}) ? "\015" : '';
|
|
|
|
$data->can_read($timeout)
|
|
or croak "Timeout";
|
|
|
|
if ($n = sysread($data, $readbuf, $blksize, length $readbuf)) {
|
|
${*$data}{'net_ftp_bytesread'} += $n;
|
|
${*$data}{'net_ftp_cr'} =
|
|
substr($readbuf, -1) eq "\015"
|
|
? chop($readbuf)
|
|
: undef;
|
|
}
|
|
else {
|
|
return
|
|
unless defined $n;
|
|
|
|
${*$data}{'net_ftp_eof'} = 1;
|
|
}
|
|
|
|
$readbuf =~ s/\015\012/\n/sgo;
|
|
${*$data} .= $readbuf;
|
|
|
|
unless (length(${*$data})) {
|
|
|
|
redo READ
|
|
if ($n > 0);
|
|
|
|
$size = length(${*$data})
|
|
if ($n == 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
$buf = substr(${*$data}, 0, $size);
|
|
substr(${*$data}, 0, $size) = '';
|
|
|
|
length $buf;
|
|
}
|
|
|
|
|
|
sub write {
|
|
my $data = shift;
|
|
local *buf = \$_[0];
|
|
shift;
|
|
my $size = shift || croak 'write($buf,$size,[$timeout])';
|
|
my $timeout = @_ ? shift: $data->timeout;
|
|
|
|
my $nr = (my $tmp = substr($buf, 0, $size)) =~ tr/\r\n/\015\012/;
|
|
$tmp =~ s/(?<!\015)\012/\015\012/sg if $nr;
|
|
$tmp =~ s/^\015// if ${*$data}{'net_ftp_outcr'};
|
|
${*$data}{'net_ftp_outcr'} = substr($tmp, -1) eq "\015";
|
|
|
|
# If the remote server has closed the connection we will be signal'd
|
|
# when we write. This can happen if the disk on the remote server fills up
|
|
|
|
local $SIG{PIPE} = 'IGNORE'
|
|
unless ($SIG{PIPE} || '') eq 'IGNORE'
|
|
or $^O eq 'MacOS';
|
|
|
|
my $len = length($tmp);
|
|
my $off = 0;
|
|
my $wrote = 0;
|
|
|
|
my $blksize = ${*$data}{'net_ftp_blksize'};
|
|
|
|
while ($len) {
|
|
$data->can_write($timeout)
|
|
or croak "Timeout";
|
|
|
|
$off += $wrote;
|
|
$wrote = syswrite($data, substr($tmp, $off), $len > $blksize ? $blksize : $len);
|
|
return
|
|
unless defined($wrote);
|
|
$len -= $wrote;
|
|
}
|
|
|
|
$size;
|
|
}
|
|
|
|
1;
|