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. */
31 connection_fatal(data);
35 /* Connection has closed. */
45 * Called to set up the raw connection.
47 * Returns an error message, or NULL on success.
49 * Also places the canonical host name into `realhost'.
51 static char *raw_init (char *host, int port, char **realhost) {
58 addr = sk_namelookup(host, realhost);
59 if ( (err = sk_addr_error(addr)) )
63 port = 23; /* default telnet port */
68 s = sk_new(addr, port, 0, raw_receive);
69 if ( (err = sk_socket_error(s)) )
78 * Called to send data down the raw connection.
80 static void raw_send (char *buf, int len) {
85 sk_write(s, buf, len);
89 * Called to set the size of the window
91 static void raw_size(void) {
97 * Send raw special codes.
99 static void raw_special (Telnet_Special code) {
104 static Socket raw_socket(void) { return s; }
106 static int raw_sendok(void) { return 1; }
108 static int raw_ldisc(int option) {
109 if (option == LD_EDIT || option == LD_ECHO)
114 Backend raw_backend = {