ID:               21573
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Bogus
 Bug Type:         Sockets related
 Operating System: Windows XP
 PHP Version:      4.3.0
 New Comment:

Read the manual for fgets:

"
string fgets ( int fp [, int length])


Returns a string of up to length - 1 bytes read from the file pointed
to by fp. Reading ends when length - 1 bytes have been read, on a
newline (which is included in the return value), or on EOF (whichever
comes first). If no length is specified, the length defaults to 1k, or
1024 bytes.
"

In 4.2.x, fgets was not behaving as it should - we fixed this bug in
4.3.

Now, fgets() is the wrong function to use for what you are doing; you
should be using fread() to read a single character.
If you insist on using fgets(), you need add one to the number of bytes
to read. (fgets($fp, 2))

I'm marking this as bogus as it is really a problem in your script, and
not a bug in PHP.


Previous Comments:
------------------------------------------------------------------------

[2003-01-10 18:27:33] [EMAIL PROTECTED]

I have code that would connect to a pop server and retrieve email
messages, without using IMAP functions, which worked fine in PHP 4.0 to
PHP 4.2.3, but no longer works correctly in PHP 4.3.0.  From what I can
tell it seems that although the socket shows that it is in blocking
mode, it acts as though it is not in blocking mode.  The following code
demonstrates the problem.

With the debug statements added to the code and when it gets to the
fgets function, it loops continuously, without reading data from the
stream, until the time limit is reached.

<?php
$hostname = "pop-server";
$port = "110";
$timeout = 30;
global $errno, $errstr;

$fp = fsockopen ($hostname, $port, $errno, $errstr, $timeout);

// debug
print_r (socket_get_status ($fp));
echo "<br>\n";

socket_set_blocking ($fp, TRUE);

// debug
print_r (socket_get_status ($fp));
echo "<br>\n";

$continue = 1;
while ($continue)
{
  $chr = fgets ($fp, 1);
  $str .= $chr;

  // debug
  echo "chr = $chr<br>\n";
    
  $array = explode ("\r\n", $str);
  if ($str != $array[0])
  {
    $continue=0;
  }
}

fclose ($fp);
?>


Output from version 4.3.0:

Array ( [stream_type] => socket [unread_bytes] => 0 [timed_out] =>
[blocked] => 1 [eof] => ) 
Array ( [stream_type] => socket [unread_bytes] => 0 [timed_out] =>
[blocked] => 1 [eof] => ) 
chr =
chr =
chr =
.
. (Loops continuously)
.
chr =

Fatal error: Maximum execution time of 30 seconds exceeded in
f:\httproot\popcorn0.8.2\includes\popcorn.inc on line 110


Output from version 4.2.3:

Array ( [timed_out] => [blocked] => 1 [eof] => [unread_bytes] => 0 ) 
Array ( [timed_out] => [blocked] => 1 [eof] => [unread_bytes] => 0 ) 
chr = +
chr = O
chr = K
chr = 
chr = C
chr = u
chr = b
chr = i
chr = c
...
chr = .
chr = n
chr = e
chr = t
chr = >
chr = 
chr = 


I realize that fsockopen, opens the stream in blocking mode by default,
but I had to use socket_set_blocking prior to version 4.3.0 to get it
to work properly.  I tried using stream_set_blocking with the same
results.  Also, I have tried connecting to multiple POP mail servers
with the same result.  Only when I go back to version 4.2.3, does it
work properly.


------------------------------------------------------------------------


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