From: karachi at mail dot ru
Operating system: FreeBSD
PHP version: 5.2.10
PHP Bug Type: Streams related
Bug description: fwrite() doesn't check reply from ftp server before exiting
Description:
------------
I tried to upload a file to ftp server using ftp wrapper functions.
Sequence of steps are: fopen, fwrite, fclose. Sometimes file uploaded
successfully and sometimes several last bytes of file didn't save. Server
reports in log file that transmission was aborted, but fwrite() returns
"true".
I found that fwrite() doesn't check ftp reply code before exiting. That's
why ftp server can receive QUIT command before it processes data stored and
close data connection as described in RFC 959: "The server may abort data
transfer if the control connections
are closed without command." If I insert sleep(1) between fwrite() and
fclose() everything works as expected.
Ftp server used: ProFTPD 1.3.2
Reproduce code:
---------------
<?php
$host = 'localhost';
$user = 'ftp';
$passwd = 'anonymous';
$f = fopen("/home/user/test/test_file", 'r') or
die ("Unable to open file");
$context = stream_context_create(
array(
"ftp" => array(
"overwrite" => true
)
)
);
$f1 = fopen("ftp://$host/test";, 'wb', false, $context) or
die("Unable to open the file on ftp");
while ($str = fread($f, 1000))
{
fwrite($f1, $str) or die("Unable to write");
}
fclose($f1);
fclose($f);
?>
Expected result:
----------------
File is successfully stored on ftp server
Actual result:
--------------
Sometimes end of the file isn't stored. It doesn't depend on the size of
the file.
--
Edit bug report at http://bugs.php.net/?id=48607&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=48607&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=48607&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=48607&r=trysnapshot60
Fixed in CVS:
http://bugs.php.net/fix.php?id=48607&r=fixedcvs
Fixed in CVS and need be documented:
http://bugs.php.net/fix.php?id=48607&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=48607&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=48607&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=48607&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=48607&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=48607&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=48607&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=48607&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=48607&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=48607&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48607&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=48607&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=48607&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=48607&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=48607&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=48607&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=48607&r=mysqlcfg
