From: mlemos at acm dot org
Operating system:
PHP version: 4.3.4RC2
PHP Bug Type: Sockets related
Bug description: feof no longer detects connections closed by the server
Description:
------------
It seems that since the changes introduced after PHP 4.3.1, the feof
function is no longer returning true when the server closes the socket
connection after transmiting all the contents.
This seems to make it impossible to determine if there was a real network
error or the server closed the connection normally breaking the
compatibility of scripts that rely on feof to determine the end of
connection condition.
Reproduce code:
---------------
The following script demonstrates the change of behaviour. You should try
it either PHP versions before and after PHP 4.3.2 to see the difference.
<?php
$socket=fsockopen("www.php.net",80,$error);
if(!$socket)
{
echo "socket opening error\n";
exit;
}
echo "connection opened\n";
if(!fputs($socket,"GET / HTTP/1.1\r\nHost: www.php.net\r\n\r\n"))
{
echo "socket writing error\n";
exit;
}
while(!feof($socket))
{
$data=fread($socket,1000);
if(!$data)
{
echo "socket reading error\n";
exit;
}
echo "read ",strlen($data)," bytes\n";
}
echo "reached the end of data\n";
fclose($socket);
?>
Expected result:
----------------
connection opened
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 278 bytes
reached the end of data
Actual result:
--------------
connection opened
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 1000 bytes
read 278 bytes
socket reading error
--
Edit bug report at http://bugs.php.net/?id=25939&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25939&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25939&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=25939&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=25939&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=25939&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=25939&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=25939&r=support
Expected behavior: http://bugs.php.net/fix.php?id=25939&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=25939&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=25939&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=25939&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25939&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=25939&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=25939&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=25939&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=25939&r=float
