function tftpd_send_packet($s, &$sock, &$buf)
{
$r = @socket_sendto($s, $buf, strlen($buf), 0x100, $sock['p_addr'], $sock['p_port']);
tftpd_log('22', 'send packet: ' . bin2hex(substr($buf, 0, 16)));
return $r;
}
function tftpd_db_write_config(&$db, &$data)
{
/* Our $db object still contains the query results from the authentication
* query earlier. Lets retrieve the device id so we update the proper
* configuration file
*/
$r = $db->get_row();
$device = $r['id'];
$filename = $r['filename'];
/* Retrieve old configuration data
* Only create patch if we have a previous config
*/
$sql = "SELECT content FROM configurations WHERE device='" . $device . "'";
tftpd_log('25', 'sql query string: "' . $sql . '"');
if ($db->query($sql) > 0) {
/* Create patch */
$r = $db->get_row($sql);
$old_data = $r['content'];
$patch = xdiff_string_diff($data, $old_data);
/* Don't save an empty patch */
if ($patch != '') {
/* Escape the data before accessing db */
$patch = mysql_real_escape_string($patch);
/* Insert the patch into the database */
$sql = "INSERT INTO patches (id, device, ts, content) VALUES ('0','{$device}',NOW(),'{$patch}')";
tftpd_log('25', 'sql query string: "' . $sql . '"');
if ($db->query($sql) > 0) {
tftpd_log('1', 'db: patch table updated');
} else {
tftpd_log('0', 'db: patch table update failed');
}
}
/* Prepare query to update the configuration */
$data = mysql_real_escape_string($data);
$sql = "UPDATE configurations SET content='{$data}' WHERE device='{$device}'";
} else {
/* Prepare query to insert the configuration */
$data = mysql_real_escape_string($data);
$sql = "INSERT INTO configurations (device, content) VALUES ('{$device}', '{$data}')";
}
tftpd_log('25', 'sql query string: "' . $sql . '"');
$db->query($sql);
tftpd_log('1', 'db: configurations table updated');
/* REPLACE the timestamp */
$sql = "REPLACE INTO updated (device, ts) " . "VALUES ('{$device}',NOW())";
tftpd_log('25', 'sql query string: "' . $sql . '"');
$db->query($sql);
}
function tftpd_send_file($s, $sock, $fp)
{
$block = 1;
$xfer_byte = 0;
$xfer_time = tftpd_microtime();
while (!feof($fp)) {
$data = fread($fp, TFTP_SEGSIZE);
if (!tftpd_send_data($s, $sock, $block, $data)) {
return false;
}
$block++;
if ($block > 65535) {
$block = 0;
}
$xfer_byte += strlen($data);
}
/* Log our success */
$xfer_time = round(tftpd_microtime() - $xfer_time, 3);
tftpd_log('1', 'sent ' . $xfer_byte . ' bytes in ' . $xfer_time . ' seconds');
}