Notes on websites that explain telnet IAC

door32.c

@@ -159,6 +159,20 @@ void doprocessing(int sock) {
   */
   // write(sock, "\x00\xff\xfd\xf6", 4);
   // write(sock, "\xff\xfb\x00", 3);
+
+  /*
+  https://www.rfc-editor.org/rfc/rfc658.html
+  https://www.rfc-editor.org/rfc/rfc652.html
+  https://www.iana.org/assignments/telnet-options/telnet-options.xhtml
+  https://stackoverflow.com/questions/273261/force-telnet-client-into-character-mode
+  https://www.omnisecu.com/tcpip/telnet-modes-of-operation.php
+  https://www.omnisecu.com/tcpip/iac-interpret-as-command-telnet.php
+  https://www.omnisecu.com/tcpip/telnet-negotiation.php
+  https://stackoverflow.com/questions/10413963/telnet-iac-command-answering
+  http://ryobbs.com/doku.php/terminal_iac
+  https://www.omnisecu.com/tcpip/telnet-commands-and-options.php
+  
+   */
   write(sock, "\xff\xfb\x01", 3);
   // drain(sock);
   write(sock, "\xff\xfb\x03", 3);