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Bug #15063 shm_attach() ignores size and permissions
Submitted: 2002-01-15 20:20 UTC Modified: 2002-02-12 12:58 UTC
From: samc at atnet dot net dot au Assigned:
Status: Not a bug Package: Semaphore related
PHP Version: 4.1.0 OS: Debian/testing Linux 2.2.18pre21
Private report: No CVE-ID: None
 [2002-01-15 20:20 UTC] samc at atnet dot net dot au
it seems regardless of how much you specify in the function call, the default of 10,000 overrides this value. to allocate the amount i required, i had to set the sysvshm.init_mem value in the php.ini file to a reasonably large figure. similarly the permissions are always 0666 regardless of what you specify.

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 [2002-02-12 12:58 UTC] elixer@php.net
The following code was tested:

<?php
    $key = shm_attach(1000, 128, 0755);
    shm_detach($key);
?>

And here is what `ipcs` reports:
key       shmid     owner     perms     bytes     nattch
0x000003e8 1413      httpd     755       128       0

Tested on these platforms:
Linux host.com 2.2.16C24_III #1 Thu Mar 22 21:17:39 PST 2001 i586 unknown (as Apache module and CLI)
Linux host.com 2.4.17 #1 Mon Jan 14 21:11:16 EST 2002 i686 unknown (as CGI/CLI)

Please try 4.1.1 or a CVS snapshot from http://snaps.php.net/ and reopen if the problem still exists.

Sean
 
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