From:             z4ns4tsu at gmail dot com
Operating system: Windows XP
PHP version:      5.2.9
PHP Bug Type:     Sockets related
Bug description:  socket_read not returning on no more data to read

Description:
------------
I am initiating a socket to an SMTP server to send a message. After
transmitting the EHLO, I need to wait for a variable number of lines to be
returned, so I am using a do{..}while() loop to check if there is nothing
more to be read from the socket before sending the next command.  The
program, however, falls into an endless wait because socket_read() is never
returning an empty string (like the documentation says it will) or FALSE
(like some other bug reports say it will).

I have tried with both the PHP_BINARY_READ and PHP_NORMAL_READ flags set
as well as with no flags set at all.

Reproduce code:
---------------
foreach($mail_head as $in) {
  $output = "";
  $in .= "\r\n";
  echo $in;
  @socket_write($socket, $in, strlen($in)) or die("Error writing to
socket: " . socket_strerror(socket_last_error()));
  do {
    $out = false;
    $out = socket_read($socket, 1024);
    $output .= $out;
  } while($out !== false && $out !== '');
  if(!preg_match('/^[23]/', $output)) {
    die("Error: Mail server did not return the expected response.");
  }
}

Expected result:
----------------
EHLO fake.domain
250-this server offers 4 extensions
250-AUTH LOGIN
250-SIZE 30485760
250-HELP
250 AUTH=LOGIN
MAIL FROM:<addr...@fake.domain>
250 Requested mail action okay, completed
...

Actual result:
--------------
EHLO fake.domain
<nothing>

-- 
Edit bug report at http://bugs.php.net/?id=48249&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=48249&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=48249&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=48249&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=48249&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=48249&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=48249&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=48249&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=48249&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=48249&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=48249&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=48249&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=48249&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=48249&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=48249&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=48249&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=48249&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=48249&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=48249&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=48249&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=48249&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=48249&r=mysqlcfg

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