15 static Socket s = NULL;
17 static void rlogin_size(void);
19 static int sb_opt, sb_len;
20 static char *sb_buf = NULL;
21 static int sb_size = 0;
24 static void c_write (char *buf, int len) {
25 from_backend(0, buf, len);
28 static int rlogin_receive (Socket skt, int urgent, char *data, int len) {
30 /* A socket error has occurred. */
33 connection_fatal(data);
36 /* Connection has closed. */
48 * We should flush everything (aka Telnet SYNCH) if we see
49 * 0x02, and we should turn off and on _local_ flow control
50 * on 0x10 and 0x20 respectively. I'm not convinced it's
55 * Main rlogin protocol. This is really simple: the first
56 * byte is expected to be NULL and is ignored, and the rest
59 static int firstbyte = 1;
61 if (data[0] == '\0') {
73 * Called to set up the rlogin connection.
75 * Returns an error message, or NULL on success.
77 * Also places the canonical host name into `realhost'.
79 static char *rlogin_init (char *host, int port, char **realhost) {
86 addr = sk_namelookup(host, realhost);
87 if ( (err = sk_addr_error(addr)) )
91 port = 513; /* default rlogin port */
96 s = sk_new(addr, port, 1, 0, rlogin_receive);
97 if ( (err = sk_socket_error(s)) )
103 * Send local username, remote username, terminal/speed
110 sk_write(s, cfg.localusername, strlen(cfg.localusername));
112 sk_write(s, cfg.username, strlen(cfg.username));
114 sk_write(s, cfg.termtype, strlen(cfg.termtype));
116 for(p = cfg.termspeed; isdigit(*p); p++);
117 sk_write(s, cfg.termspeed, p - cfg.termspeed);
125 * Called to send data down the rlogin connection.
127 static void rlogin_send (char *buf, int len) {
132 sk_write(s, buf, len);
136 * Called to set the size of the window
138 static void rlogin_size(void) {
139 char b[12] = { '\xFF', '\xFF', 0x73, 0x73, 0, 0, 0, 0, 0, 0, 0, 0 };
141 b[6] = cols >> 8; b[7] = cols & 0xFF;
142 b[4] = rows >> 8; b[5] = rows & 0xFF;
148 * Send rlogin special codes.
150 static void rlogin_special (Telnet_Special code) {
155 static Socket rlogin_socket(void) { return s; }
157 static int rlogin_sendok(void) { return 1; }
159 static int rlogin_ldisc(int option) {
163 Backend rlogin_backend = {