PHP Telnet Feature Instance code

example, the PHP telnet feature implements the code. Class Phptelnet { var $show _connect_error=1; var $use _usleep=0; Change to 1 for faster execution Don ' t change the 1 on the Windows servers unless you have PHP 5 var $sleeptime = 125000; var $loginsleeptime = 1000000; var $fp =null; var $loginprompt; var $conn 1; var $conn 2; /* 0 = Success 1 = couldn ' t Open network connection 2 = Unknown Host 3 = Login Failed 4 = PHP version too low */ function Connect ($server, $user, $pass) { $RV = 0; $vers =explode ('. ', php_version); $needvers =array (4,3,0); $j =count ($vers); $k =count ($needvers); if ($k < $j) $j = $k; for ($i =0; $i < $j; $i + +) { if ($vers [$i]+0) > $needvers [$i]) break; if ($vers [$i]+0) < $needvers [$i]) { $this->connecterror (4); return 4; } } $this->disconnect (); if (strlen ($server)) { if (Preg_match ('/[^0-9. /', $server)) { $ip =gethostbyname ($server); if ($ip = = $server) { $ip = "; $RV = 2; } } else $ip = $server; } else $ip = ' 127.0.0.1 '; if (strlen ($IP)) { if ($this->fp=fsockopen ($ip, 23)) { Fputs ($this->fp, $this->conn1); $this->sleep (); Fputs ($this->fp, $this->conn2); $this->sleep (); $this->getresponse ($R); $r =explode ("\ n", $r); $this->loginprompt= $r [Count ($r)-1]; Fputs ($this->fp, "$user \ n"); $this->sleep (); Fputs ($this->fp, "$pass \ n"); if ($this->use_usleep) usleep ($this->loginsleeptime); else sleep (1); $this->getresponse ($R); $r =explode ("\ n", $r); if ($r [count ($r) -1]== ') | | ($this->loginprompt== $r [Count ($r)-1])) { $RV = 3; $this->disconnect (); } } else $RV = 1; } if ($RV) $this->connecterror ($RV); return $RV; } function Disconnect ($exit =1) { if ($this->fp) { if ($exit) $this->docommand (' exit ', $junk); Fclose ($this->FP); $this->fp=null; } } function DoCommand ($c,& $r) { if ($this->fp) { Fputs ($this->fp, "$c \ n"); $this->sleep (); $this->getresponse ($R); $r =preg_replace ("/^.*?\n (. *) \n[^\n]*$/", "$", $r); } return $this->fp?1:0; } Function GetResponse (& $r) { $r = "; do { $r. =fread ($this->FP, 1024); $s =socket_get_status ($this->fp); } while ($s [' unread_bytes ']); } function Sleep () { if ($this->use_usleep) usleep ($this->sleeptime); else sleep (1); } Telnet function Main function function Phptelnet () { $this->CONN1=CHR (0xFF). chr (0xFB). chr (0x1F). chr (0xFF). chr (0xFB). Chr (0x20). chr (0xFF). chr (0xFB). chr (0x18). chr (0xFF). chr (0xFB). Chr (0x27). chr (0xFF). chr (0xFD). chr (0x01). chr (0xFF). chr (0xFB). Chr (0x03). chr (0xFF). chr (0xFD). chr (0x03). chr (0xFF). chr (0xFC). Chr (0x23). chr (0xFF). chr (0xFC). chr (0x24). chr (0xFF). chr (0xFA). Chr (0x1F). chr (0x00). chr (0x50). chr (0x00). chr (0x18). chr (0xFF). Chr (0xF0). chr (0xFF). chr (0xFA). chr (0x20). chr (0x00). chr (0x33). Chr (0x38) Chr (0x34) Chr (0x30). chr (0x30). chr (0x2C). chr (0x33). Chr (0x38) Chr (0x34) Chr (0x30). chr (0x30). chr (0xFF). chr (0xF0). Chr (0xFF). chr (0xFA). chr (0x27). chr (0x00). chr (0xFF). chr (0xF0). Chr (0xFF). chr (0xFA). chr (0x18). chr (0x00). chr (0x58). chr (0x54). Chr (0x45). chr (0x52). chr (0x4d). chr (0xFF). chr (0xF0); $this->CONN2=CHR (0xFF). chr (0xFC). chr (0x01). chr (0xFF). chr (0xFC). Chr (0x22). chr (0xFF). chr (0xFE). chr (0x05). chr (0xFF). chr (0xFC). chr (0x21); } function Connecterror ($num) { if ($this->show_connect_error) switch ($num) { Case 1:echo ' [PHP Telnet] Connect failed:unable to open network connection '; Break Case 2:echo ' [PHP Telnet] Connect Failed:unknown Host '; Break Case 3:echo ' [PHP Telnet] Connect Failed:login failed '; Break Case 4:echo ' [PHP Telnet] Connect failed:your server\ ' s PHP version is too low for PHP Telnet '; Break } } } ?> Copy Code

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