85 lines
1.6 KiB
Perl
85 lines
1.6 KiB
Perl
##
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## Package to read/write on BINARY data connections
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##
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package Net::FTP::I;
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use 5.008001;
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use strict;
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use warnings;
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use Carp;
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use Net::FTP::dataconn;
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our @ISA = qw(Net::FTP::dataconn);
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our $VERSION = "3.11";
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our $buf;
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sub read {
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my $data = shift;
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local *buf = \$_[0];
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shift;
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my $size = shift || croak 'read($buf,$size,[$timeout])';
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my $timeout = @_ ? shift: $data->timeout;
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my $n;
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if ($size > length ${*$data} and !${*$data}{'net_ftp_eof'}) {
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$data->can_read($timeout)
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or croak "Timeout";
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my $blksize = ${*$data}{'net_ftp_blksize'};
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$blksize = $size if $size > $blksize;
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unless ($n = sysread($data, ${*$data}, $blksize, length ${*$data})) {
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return unless defined $n;
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${*$data}{'net_ftp_eof'} = 1;
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}
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}
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$buf = substr(${*$data}, 0, $size);
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$n = length($buf);
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substr(${*$data}, 0, $n) = '';
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${*$data}{'net_ftp_bytesread'} += $n;
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$n;
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}
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sub write {
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my $data = shift;
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local *buf = \$_[0];
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shift;
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my $size = shift || croak 'write($buf,$size,[$timeout])';
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my $timeout = @_ ? shift: $data->timeout;
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# If the remote server has closed the connection we will be signal'd
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# when we write. This can happen if the disk on the remote server fills up
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local $SIG{PIPE} = 'IGNORE'
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unless ($SIG{PIPE} || '') eq 'IGNORE'
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or $^O eq 'MacOS';
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my $sent = $size;
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my $off = 0;
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my $blksize = ${*$data}{'net_ftp_blksize'};
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while ($sent > 0) {
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$data->can_write($timeout)
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or croak "Timeout";
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my $n = syswrite($data, $buf, $sent > $blksize ? $blksize : $sent, $off);
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return unless defined($n);
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$sent -= $n;
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$off += $n;
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}
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$size;
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}
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1;
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