X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/86916870d36cb70e7ef0ea760e75a6ae8b2d83a5..347e5401f43649bf0f3e3eed57b11d02b2fdf8be:/telnet.c

diff --git a/telnet.c b/telnet.c
index 2d87b310..c45f20ff 100644
--- a/telnet.c
+++ b/telnet.c
@@ -72,6 +72,19 @@
 #define	TELOPT_AUTHENTICATION 37       /* Authenticate */
 #define	TELOPT_ENCRYPT	38	       /* Encryption option */
 #define TELOPT_NEW_ENVIRON 39	       /* New - Environment variables */
+#define TELOPT_TN3270E	40	       /* TN3270 enhancements */
+#define TELOPT_XAUTH	41
+#define TELOPT_CHARSET	42	       /* Character set */
+#define TELOPT_RSP	43	       /* Remote serial port */
+#define TELOPT_COM_PORT_OPTION 44      /* Com port control */
+#define TELOPT_SLE	45	       /* Suppress local echo */
+#define TELOPT_STARTTLS	46	       /* Start TLS */
+#define TELOPT_KERMIT	47	       /* Automatic Kermit file transfer */
+#define TELOPT_SEND_URL	48
+#define TELOPT_FORWARD_X 49
+#define TELOPT_PRAGMA_LOGON	138
+#define TELOPT_SSPI_LOGON	139
+#define TELOPT_PRAGMA_HEARTBEAT	140
 #define	TELOPT_EXOPL	255	       /* extended-options-list */
 
 #define	TELQUAL_IS	0	       /* option is... */
@@ -132,6 +145,19 @@ static char *telopt(int opt)
     i(AUTHENTICATION);
     i(ENCRYPT);
     i(NEW_ENVIRON);
+    i(TN3270E);
+    i(XAUTH);
+    i(CHARSET);
+    i(RSP);
+    i(COM_PORT_OPTION);
+    i(SLE);
+    i(STARTTLS);
+    i(KERMIT);
+    i(SEND_URL);
+    i(FORWARD_X);
+    i(PRAGMA_LOGON);
+    i(SSPI_LOGON);
+    i(PRAGMA_HEARTBEAT);
     i(EXOPL);
 #undef i
     return "<unknown>";
@@ -689,7 +715,7 @@ static char *telnet_init(void *frontend_handle, void **backend_handle,
 	logevent(telnet->frontend, buf);
 	sfree(buf);
     }
-    addr = name_lookup(host, port, realhost);
+    addr = name_lookup(host, port, realhost, &telnet->cfg);
     if ((err = sk_addr_error(addr)) != NULL)
 	return err;
 
@@ -707,7 +733,7 @@ static char *telnet_init(void *frontend_handle, void **backend_handle,
 	sfree(buf);
     }
     telnet->s = new_connection(addr, *realhost, port, 0, 1,
-			       nodelay, (Plug) telnet);
+			       nodelay, (Plug) telnet, &telnet->cfg);
     if ((err = sk_socket_error(telnet->s)) != NULL)
 	return err;
 
@@ -740,6 +766,15 @@ static char *telnet_init(void *frontend_handle, void **backend_handle,
     return NULL;
 }
 
+static void telnet_free(void *handle)
+{
+    Telnet telnet = (Telnet) handle;
+
+    sfree(telnet->sb_buf);
+    if (telnet->s)
+	sk_close(telnet->s);
+    sfree(telnet);
+}
 /*
  * Reconfigure the Telnet backend. There's no immediate action
  * necessary, in this backend: we just save the fresh config for
@@ -758,10 +793,10 @@ static int telnet_send(void *handle, char *buf, int len)
 {
     Telnet telnet = (Telnet) handle;
     unsigned char *p, *end;
-    static unsigned char iac[2] = { IAC, IAC };
-    static unsigned char cr[2] = { CR, NUL };
+    static const unsigned char iac[2] = { IAC, IAC };
+    static const unsigned char cr[2] = { CR, NUL };
 #if 0
-    static unsigned char nl[2] = { CR, LF };
+    static const unsigned char nl[2] = { CR, LF };
 #endif
 
     if (telnet->s == NULL)
@@ -974,6 +1009,7 @@ static int telnet_exitcode(void *handle)
 
 Backend telnet_backend = {
     telnet_init,
+    telnet_free,
     telnet_reconfig,
     telnet_send,
     telnet_sendbuffer,