Bug #10384: read() buffer memory not freed
| From: | rod at 23net dot net | Date: | Wed, 18 Apr 2001 19:27:25 +0000 |
| Subject: | Bug #10384: read() buffer memory not freed | ||
| Groups: | php.dev | ||
| Request: | Send a blank email to php-dev+get-51892@lists.php.net to get a copy of this message | ||
From: rod@23net.net
Operating system: FreeBSD 4.2
PHP version: 4.0.4pl1
PHP Bug Type: Sockets related
Bug description: read() buffer memory not freed
Using the following code:
<?
/* Allow the script to hang around waiting for connections. */
set_time_limit (0);
##### Connect to DB
mysql_connect('localhost','chatscript','jen481');
##### Open log file
$fp=fopen('chat_log','a');
$outMsgHeader="HTTP/1.1 200 OK\r\nDate: ";
$outMsgAfterDate=" GMT\r\nServer: PHP\r\nConnection: close\r\nTransfer-Encoding:
chunked\r\nContent-Type: text/html\r\n\r\n";
$outMsgFooter="\r\n\r\n";
$sock=open_listen_sock(1089);
if ($sock<0)
{
echo "socket() failed: reason: " . strerror ($sock) . "\n";
exit;
}
if (($ret = listen ($sock, 5)) < 0)
{
echo "listen() failed: reason: " . strerror ($ret) . "\n";
shutdown($sock,2);
exit;
}
do
{
if (($msgsock = accept_connect($sock)) < 0)
{
echo "accept_connect() failed: reason: " . strerror ($msgsock) . "\n";
shutdown($sock,2);
exit;
}
$ret=read($msgsock,$buf,2048);
$isPost=strpos($buf,'POST');
if ($isPost===false)
{
$isGet=strpos($buf,'GET');
if ($isGET===false)
{
write($msgsock,' HTTP/1.1 405\r\n',13);
}
else
{
$startQS=strpos($buf,'?')+1;
$endQS=strpos($buf,' ',$startQS);
$lenQS=$endQS-$startQS;
$QS=substr($buf,$startQS,$lenQS);
}
}
else
{
do
{
$ret=read($msgsock,$buf,2048);
if (substr($buf,0,15)=="Content-length:")
{
$conLen=substr($buf,16);
}
} while ($buf != "\n");
// through with headers, now get actual content
$ret=read($msgsock,$buf,$conLen);
// $buf now contains the query string
$QS=$buf;
}
$msgToSend=urlencode(procMsg($QS));
$msgLen=dechex(strlen($msgToSend));
$sendDate=gmdate('D, d M Y H:i:s');
$send=$outMsgHeader.$sendDate.$msgLen."\r\n".$msgToSend.$outMsgFooter;
write($msgsock,$send,strlen($send));
$log=$sendDate."\t".$QS."\t".$msgToSend."\n";
fwrite($fp,$log);
close ($msgsock);
} while (true);
?>
(The function procMsg() is not relevent as for bug testing is set to return 'test')
Running this script causes memory to be consumed and not released with each connection. I've
narrowed the problem down to the read() function as I can affect the rate of memory consumption by
modifying the length argument. Evidently the buffer is not freed.
--
Edit Bug report at: http://bugs.php.net/?id=10384&edit=1