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_closing (Plug plug
, char *error_msg
, int error_code
, int calling_back
) {
32 /* A socket error has occurred. */
33 connection_fatal (error_msg
);
34 } /* Otherwise, the remote side closed the connection normally. */
38 static int rlogin_receive (Plug plug
, int urgent
, char *data
, int len
) {
46 * We should flush everything (aka Telnet SYNCH) if we see
47 * 0x02, and we should turn off and on _local_ flow control
48 * on 0x10 and 0x20 respectively. I'm not convinced it's
53 * Main rlogin protocol. This is really simple: the first
54 * byte is expected to be NULL and is ignored, and the rest
57 static int firstbyte
= 1;
59 if (data
[0] == '\0') {
71 * Called to set up the rlogin connection.
73 * Returns an error message, or NULL on success.
75 * Also places the canonical host name into `realhost'.
77 static char *rlogin_init (char *host
, int port
, char **realhost
) {
78 static struct plug_function_table fn_table
= {
81 }, *fn_table_ptr
= &fn_table
;
89 addr
= sk_namelookup(host
, realhost
);
90 if ( (err
= sk_addr_error(addr
)) )
94 port
= 513; /* default rlogin port */
99 s
= sk_new(addr
, port
, 1, 0, &fn_table_ptr
);
100 if ( (err
= sk_socket_error(s
)) )
106 * Send local username, remote username, terminal/speed
113 sk_write(s
, cfg
.localusername
, strlen(cfg
.localusername
));
115 sk_write(s
, cfg
.username
, strlen(cfg
.username
));
117 sk_write(s
, cfg
.termtype
, strlen(cfg
.termtype
));
119 for(p
= cfg
.termspeed
; isdigit(*p
); p
++);
120 sk_write(s
, cfg
.termspeed
, p
- cfg
.termspeed
);
128 * Called to send data down the rlogin connection.
130 static void rlogin_send (char *buf
, int len
) {
135 sk_write(s
, buf
, len
);
139 * Called to set the size of the window
141 static void rlogin_size(void) {
142 char b
[12] = { '\xFF', '\xFF', 0x73, 0x73, 0, 0, 0, 0, 0, 0, 0, 0 };
144 b
[6] = cols
>> 8; b
[7] = cols
& 0xFF;
145 b
[4] = rows
>> 8; b
[5] = rows
& 0xFF;
151 * Send rlogin special codes.
153 static void rlogin_special (Telnet_Special code
) {
158 static Socket
rlogin_socket(void) { return s
; }
160 static int rlogin_sendok(void) { return 1; }
162 static int rlogin_ldisc(int option
) {
166 Backend rlogin_backend
= {