14 static Socket s = NULL;
16 static void raw_size(void);
18 static int sb_opt, sb_len;
19 static char *sb_buf = NULL;
20 static int sb_size = 0;
23 static void c_write (char *buf, int len) {
24 from_backend(0, buf, len);
27 static int raw_receive (Socket skt, int urgent, char *data, int len) {
29 /* A socket error has occurred. */
32 connection_fatal(data);
36 /* Connection has closed. */
46 * Called to set up the raw connection.
48 * Returns an error message, or NULL on success.
50 * Also places the canonical host name into `realhost'.
52 static char *raw_init (char *host, int port, char **realhost) {
59 addr = sk_namelookup(host, realhost);
60 if ( (err = sk_addr_error(addr)) )
64 port = 23; /* default telnet port */
69 s = sk_new(addr, port, 0, raw_receive);
70 if ( (err = sk_socket_error(s)) )
79 * Called to send data down the raw connection.
81 static void raw_send (char *buf, int len) {
86 sk_write(s, buf, len);
90 * Called to set the size of the window
92 static void raw_size(void) {
98 * Send raw special codes.
100 static void raw_special (Telnet_Special code) {
105 static Socket raw_socket(void) { return s; }
107 static int raw_sendok(void) { return 1; }
109 static int raw_ldisc(int option) {
110 if (option == LD_EDIT || option == LD_ECHO)
115 Backend raw_backend = {