I've written a very basic chat program that transmits data across the net to another chat program running elsewhere. I'd like to modify a subroutine so that it accepts byte-sized input rather than line input from STDIN. Here was my last two attempts: 
sub user_to_host {
  my $s = shift;      # Note: $s is the socket
  my $buffer;
   STDIN->autoflush(1);
  while (read (STDIN, $buffer, 1)) {
    print $s $buffer;    
  }
}

# ATTEMPT #2

sub user_to_host {
  my $s = shift;
  my $buffer;
   STDIN->autoflush(1);
  while ($s) {
      read (STDIN, $buffer, 1);
    print $s $buffer;
  }
}

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I'm still getting line input and output, however. The input is running in one process and the output is running in another. In other words, the output subroutine above is the only part of the program running so the problem is definitely within the bounds of this subroutine. I turn humbly to the PerlMonks community for wisdom.

$PM = "Perl Monk's";
$MCF = "Most Clueless Friar Abbot Bishop";
$nysus = $PM . $MCF;
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In reply to Getting byte stream input from STDIN by nysus

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