PHP implementation of Telnet function

Use PHP to implement Telnet connection, pass command, get return value and other functions! telnet.php Error_reporting (-1); Class Telnet { var $sock = NULL; function Telnet ($host, $port) { $this->sock = Fsockopen ($host, $port); Socket_set_timeout ($this->sock,2,0); } function Close () { if ($this->sock) fclose ($this->sock); $this->sock = NULL; } function Write ($buffer) { $buffer = Str_replace (Chr (255), Chr (255). chr (255), $buffer); Fwrite ($this->sock, $buffer); } function getc () { Return fgetc ($this->sock); } function Read_till ($what) { $buf = "; while (1) { $IAC = Chr (255); $DONT = Chr (254); $DO = Chr (253); $WONT = Chr (252); $WILL = chr (251); $theNULL = chr (0); $c = $this->getc (); if ($c = = = False) return $buf; if ($c = = $theNULL) { Continue } if ($c = = "1") { Continue } if ($c! = $IAC) { $buf. = $c; if ($what = = (substr ($buf, strlen ($buf)-strlen ($what)))) { return $buf; } else { Continue } } $c = $this->getc (); if ($c = = $IAC) { $buf. = $c; } else if (($c = = $DO) | | ($c = = $DONT)) { $opt = $this->getc (); echo "We wont". Ord ($opt). " \ n "; Fwrite ($this->sock, $IAC. $WONT. $opt); } ElseIf (($c = = $WILL) | | ($c = = $WONT)) { $opt = $this->getc (); echo "We dont". Ord ($opt). " \ n "; Fwrite ($this->sock, $IAC. $DONT. $opt); } else { echo "Where are we?" C= ". Ord ($c). \ n "; } } } } /* ?? ÷??? ??? $telnet = new Telnet ("192.168.0.1", 23); echo $telnet->read_till ("Login:"); $telnet->write ("kongxx\r\n"); echo $telnet->read_till ("Password:"); $telnet->write ("kongxx\r\n"); echo $telnet->read_till (":>"); $telnet->write ("ls\r\n"); echo $telnet->read_till (":>"); echo $telnet->close (); */ Copy Code

PHP, Telnet

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