#50524 [Bgs->Fbk]: proc_open is using a wrong initial working dir

[kalle]

 ID:               50524
 Updated by:       ka...@php.net
 Reported By:      carsten_sttgt at gmx dot de
-Status:           Bogus
+Status:           Feedback
 Bug Type:         Program Execution
 Operating System: win32 only
 PHP Version:      5.3.1


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

[2009-12-23 13:56:25] ka...@php.net

This is expected, as also noted in the manual on the proc_open() page
for the $cwd parameter. If NULL is supplied to $cwd, then on Windows
atleast the directory where the PHP script interpreter is located is the
cwd.

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

[2009-12-18 19:33:35] carsten_sttgt at gmx dot de

Description:
------------
Hello,

each program execution function:
- exec()
- passthru()
- shell_exec()
- system()
- backtick operator
or popen() is using the current script (working) directory as working
directory for the command which is executed.

Only proc_open() is using a different directory:
- for apache2handler it the Apache ServerRoot
- for CGI it's the php-cgi.exe directory
- for FastCGI (mod_fgcid) it's also the php-cgi.exe directory

On *nix (mod_fcgid) the proc_open() working directory is as expected
also the script (working) directory.

Regards,
Carsten


Reproduce code:
---------------
<?php
header('Content-Type: text/plain');
echo "------getcwd()---------\n";
echo getcwd()."\n\n";


echo "\n\n-------popen()---------\n";
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
    $cmd = 'dir';
} else {
    $cmd = 'ls';
}
$process = popen($cmd, 'r');
while (!feof($process)) {
    echo fread($process, 80);
}
pclose($process);


echo "\n\n-------passthru()------\n";
passthru($cmd);


echo "\n\n------proc_open()------\n";
$descriptorspec = array(
   0 => array('pipe', 'r'),
   1 => array('pipe', 'w'),
   2 => array('pipe', 'w')
);
$process = proc_open($cmd, $descriptorspec, $pipes);
while (!feof($pipes[1])) {
   echo fread($pipes[1], 80);
}
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
proc_close($process);
?>


Expected result:
----------------
getcwd:
C:\Apache2.2\htdocs

3 times a directory listing of:
C:\Apache2.2\htdocs

Actual result:
--------------
getcwd:
C:\Apache2.2\htdocs

2 times (popen, passthru) a directory listing of:
C:\Apache2.2\htdocs

1 time (proc_open) a directory listing of:
apache2handler: C:\Apache2.2
or CGI/FastCGI: C:\PHP



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


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Edit this bug report at http://bugs.php.net/?id=50524&edit=1