2 ## Package to read/write on ASCII data connections
7 use vars qw(@ISA $buf $VERSION);
10 require Net::FTP::dataconn;
12 @ISA = qw(Net::FTP::dataconn);
20 my $size = shift || croak 'read($buf,$size,[$offset])';
21 my $timeout = @_ ? shift: $data->timeout;
23 if (length(${*$data}) < $size && !${*$data}{'net_ftp_eof'}) {
24 my $blksize = ${*$data}{'net_ftp_blksize'};
25 $blksize = $size if $size > $blksize;
32 my $readbuf = defined(${*$data}{'net_ftp_cr'}) ? "\015" : '';
34 $data->can_read($timeout)
37 if ($n = sysread($data, $readbuf, $blksize, length $readbuf)) {
38 ${*$data}{'net_ftp_bytesread'} += $n;
39 ${*$data}{'net_ftp_cr'} =
40 substr($readbuf, -1) eq "\015"
48 ${*$data}{'net_ftp_eof'} = 1;
51 $readbuf =~ s/\015\012/\n/sgo;
52 ${*$data} .= $readbuf;
54 unless (length(${*$data})) {
59 $size = length(${*$data})
65 $buf = substr(${*$data}, 0, $size);
66 substr(${*$data}, 0, $size) = '';
76 my $size = shift || croak 'write($buf,$size,[$timeout])';
77 my $timeout = @_ ? shift: $data->timeout;
79 my $nr = (my $tmp = substr($buf, 0, $size)) =~ tr/\r\n/\015\012/;
80 $tmp =~ s/([^\015])\012/$1\015\012/sg if $nr;
81 $tmp =~ s/^\012/\015\012/ unless ${*$data}{'net_ftp_outcr'};
82 ${*$data}{'net_ftp_outcr'} = substr($tmp, -1) eq "\015";
84 # If the remote server has closed the connection we will be signal'd
85 # when we write. This can happen if the disk on the remote server fills up
87 local $SIG{PIPE} = 'IGNORE'
88 unless ($SIG{PIPE} || '') eq 'IGNORE'
91 my $len = length($tmp);
95 my $blksize = ${*$data}{'net_ftp_blksize'};
98 $data->can_write($timeout)
102 $wrote = syswrite($data, substr($tmp, $off), $len > $blksize ? $blksize : $len);
104 unless defined($wrote);