11-05-2009
I dont know...
Were you asked to do such a laborious script for such a simple question?
Why use su? No need for chcecking perms on directories unless you have trick ones where others is set to ---... is it the case? (if so you only need to execute your script as root...)
Usually all users with home directories are in ~/home/ often in solaris /export/home...
Why not start here by reading the names of the directories and use that for your tests:
1) does it belong to the user
2) is perms set correctly...
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CHOWN(3) 1 CHOWN(3)
chown - Changes file owner
SYNOPSIS
bool chown (string $filename, mixed $user)
DESCRIPTION
Attempts to change the owner of the file $filename to user $user. Only the superuser may change the owner of a file.
PARAMETERS
o $filename
- Path to the file.
o $user
- A user name or number.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Simple chown(3) usage
<?php
// File name and username to use
$file_name= "foo.php";
$path = "/home/sites/php.net/public_html/sandbox/" . $file_name ;
$user_name = "root";
// Set the user
chown($path, $user_name);
// Check the result
$stat = stat($path);
print_r(posix_getpwuid($stat['uid']));
?>
The above example will output something similar to:
Array
(
[name] => root
[passwd] => x
[uid] => 0
[gid] => 0
[gecos] => root
[dir] => /root
[shell] => /bin/bash
)
NOTES
Note
This function will not work on remote files as the file to be examined must be accessible via the server's filesystem.
Note
When safe mode is enabled, PHP checks whether the files or directories being operated upon have the same UID (owner) as the script
that is being executed.
SEE ALSO
chmod(3), chgrp(3).
PHP Documentation Group CHOWN(3)