note 79314 added to function.socket-read
| From: | nad0r1 at hush dot ai | Date: | Tue, 20 Nov 2007 15:59:03 +0000 |
| Subject: | note 79314 added to function.socket-read | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-132436@lists.php.net to get a copy of this message | ||
Another way to bypass the annoying thing with telnet, that send each character as a string ,is to
check if the response is "\r\n", that is the string that telnet sends when the user
presses enter.
Here is an example:
<?php
error_reporting(E_ALL);
/* Allow the script to hang around waiting for connections. */
set_time_limit(0);
/* Turn on implicit output flushing so we see what we're getting
* as it comes in. */
ob_implicit_flush();
$address = '127.0.0.1';
$port = 100;
if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) .
"\n";
}
if (socket_bind($sock, $address, $port) === false) {
echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) .
"\n";
}
else
echo 'Socket ' . $address . ':' . $port . " has been opened\n";
if (socket_listen($sock, 5) === false) {
echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) .
"\n";
}
else
echo "Listening for new clients..\n";
$client_id = 0;
do {
if (($msgsock = socket_accept($sock)) === false) {
echo "socket_accept() failed: reason: " .
socket_strerror(socket_last_error($sock)) . "\n";
break;
}
else {
$client_id += 1;
echo "Client #" .$client_id .": Connect\n";
}
/* Send instructions. */
$msg = "\nWelcome to the PHP Test Server. \n" .
"To quit, type 'quit'. To shut down the server type
'shutdown'.\n";
socket_write($msgsock, $msg, strlen($msg));
$cur_buf = '';
do {
if (false === ($buf = socket_read($msgsock, 2048))) {
echo "socket_read() failed: reason: " .
socket_strerror(socket_last_error($msgsock)) . "\n";
break 2;
}
if ($buf == "\r\n") {
if ($cur_buf == 'quit') {
echo 'Client #' .$client_id .': Disconnect' . "\n";
break;
}
if ($cur_buf == 'shutdown') {
socket_close($msgsock);
break 2;
}
//else {
$talkback = "Unknown command: " . str_replace("\r\n", '\r\n',
$cur_buf) ."\n";
socket_write($msgsock, $talkback, strlen($talkback));
// }
echo 'Client #' .$client_id .': ' . $cur_buf . "\n";
$cur_buf = '';
}
else $cur_buf .= $buf;
} while (true);
socket_close($msgsock);
} while (true);
socket_close($sock);
?>
----
Server IP: 69.147.83.197
Probable Submitter: 198.54.202.214
----
Manual Page -- http://www.php.net/manual/en/function.socket-read.php
Edit -- https://master.php.net/note/edit/79314
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Del: useless -- https://master.php.net/note/delete/79314/useless
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Del: non-english -- https://master.php.net/note/delete/79314/non-english
Del: in docs -- https://master.php.net/note/delete/79314/in+docs
Del: other reasons-- https://master.php.net/note/delete/79314
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