1 files changed, 111 insertions, 0 deletions
diff --git a/lib/Net/FTP/A.pm b/lib/Net/FTP/A.pm
new file mode 100644
index 0000000..c117d69
--- /dev/null
+++ b/lib/Net/FTP/A.pm
@@ -0,0 +1,111 @@
+## 
+## Package to read/write on ASCII data connections
+##
+
+package Net::FTP::A;
+use strict;
+use vars qw(@ISA $buf $VERSION);
+use Carp;
+
+require Net::FTP::dataconn;
+
+@ISA     = qw(Net::FTP::dataconn);
+$VERSION = "1.19";
+
+
+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 undef
+          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 : $len);
+    return undef
+      unless defined($wrote);
+    $len -= $wrote;
+  }
+
+  $size;
+}
+
+1;