[PHP-DEV] PHP 4.0 Bug #9264: Using session_encode with user-level session storage functions causes a crash

[lolo]

From:             [EMAIL PROTECTED]
Operating system: win98 SE
PHP version:      4.0 Latest CVS (14/02/2001)
PHP Bug Type:     Reproduceable crash
Bug description:  Using session_encode with user-level session storage functions 
causes a crash

Hi!

Be indulgent for my poorly english level please...

To force session data to be saved when using a database based session storage system 
and 'register_globals' is set to off I've build this (very) simplified structure of 
script:

function dbSessionClose()
{
    return true;
}

function dbSessionRead($id)
{
    return true;
}

function dbSessionWrite($id, $data)
{
    return true;
}

function dbSessionDestroy($id)
{
    return true;
}

function dbSessionGarbageCollector($sessionLifeTime)
{
    return true;
}

function dbSessionSave()
{
    return dbSessionWrite(session_id(), session_encode());  // The note below is about 
this line
}

session_set_save_handler('dbSessionOpen', 'dbSessionClose', 'dbSessionRead', 
'dbSessionWrite', 'dbSessionDestroy', 'dbSessionGarbageCollector');


/**
 * Uses session
 */
session_start();
session_register('myVar');

$myVar = 'crash';

dbSessionSave();


Then each time I run it with the latest PHP 4.0.5dev loaded as an apache module, PHP 
crash and produces this error:

APACHE a causé une défaillance de page dans
 le module PHP4TS.DLL à 016f:008a533e.
Registres :
EAX=00000000 CS=016f EIP=008a533e EFLGS=00010246
EBX=00000000 SS=0177 ESP=01e2f274 EBP=007f7df0
ECX=007ee7a0 DS=0177 ESI=007ee164 FS=2217
EDX=007ee130 ES=0177 EDI=007f7c46 GS=0000
Octets à CS : EIP :
8b 00 8b 4c 24 0c 8b 54 24 08 51 8b 4c 24 08 42 
État de la pile :
008a57b4 007f7c40 00000005 01e2f2a4 007ee7a0 007ee130 007dd720 00000001 00000000 
007dd720 007f7b10 007f7c40 00000000 00000000 007ee7a0 007dd720


An amazing note: if...
- ... at the first run I replace the call to the session_encode() function by the 
string 'crash', fire the script...
- ... then resume to the original 'dbSessionSave()' function and run the script 
again...
... everything go right!


-- 
Edit Bug report at: http://bugs.php.net/?id=9264&edit=1



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