#define RLOGIN_MAX_BACKLOG 4096
-static Socket s = NULL;
-static int rlogin_bufsize;
-static int rlogin_term_width, rlogin_term_height;
-static void *frontend;
+typedef struct rlogin_tag {
+ const struct plug_function_table *fn;
+ /* the above field _must_ be first in the structure */
-static void rlogin_size(int width, int height);
+ Socket s;
+ int bufsize;
+ int term_width, term_height;
+ void *frontend;
+} *Rlogin;
-static void c_write(char *buf, int len)
+static void rlogin_size(void *handle, int width, int height);
+
+static void c_write(Rlogin rlogin, char *buf, int len)
{
- int backlog = from_backend(frontend, 0, buf, len);
- sk_set_frozen(s, backlog > RLOGIN_MAX_BACKLOG);
+ int backlog = from_backend(rlogin->frontend, 0, buf, len);
+ sk_set_frozen(rlogin->s, backlog > RLOGIN_MAX_BACKLOG);
}
static int rlogin_closing(Plug plug, char *error_msg, int error_code,
int calling_back)
{
- if (s) {
- sk_close(s);
- s = NULL;
+ Rlogin rlogin = (Rlogin) plug;
+ if (rlogin->s) {
+ sk_close(rlogin->s);
+ rlogin->s = NULL;
}
if (error_msg) {
/* A socket error has occurred. */
static int rlogin_receive(Plug plug, int urgent, char *data, int len)
{
+ Rlogin rlogin = (Rlogin) plug;
if (urgent == 2) {
char c;
c = *data++;
len--;
if (c == '\x80')
- rlogin_size(rlogin_term_width, rlogin_term_height);
+ rlogin_size(rlogin, rlogin->term_width, rlogin->term_height);
/*
* We should flush everything (aka Telnet SYNCH) if we see
* 0x02, and we should turn off and on _local_ flow control
firstbyte = 0;
}
if (len > 0)
- c_write(data, len);
+ c_write(rlogin, data, len);
}
return 1;
}
static void rlogin_sent(Plug plug, int bufsize)
{
- rlogin_bufsize = bufsize;
+ Rlogin rlogin = (Rlogin) plug;
+ rlogin->bufsize = bufsize;
}
/*
* Also places the canonical host name into `realhost'. It must be
* freed by the caller.
*/
-static char *rlogin_init(void *frontend_handle,
+static char *rlogin_init(void *frontend_handle, void **backend_handle,
char *host, int port, char **realhost, int nodelay)
{
- static struct plug_function_table fn_table = {
+ static const struct plug_function_table fn_table = {
rlogin_closing,
rlogin_receive,
rlogin_sent
- }, *fn_table_ptr = &fn_table;
-
+ };
SockAddr addr;
char *err;
+ Rlogin rlogin;
- frontend = frontend_handle;
- rlogin_term_width = cfg.width;
- rlogin_term_height = cfg.height;
+ rlogin = smalloc(sizeof(*rlogin));
+ rlogin->fn = &fn_table;
+ rlogin->s = NULL;
+ rlogin->frontend = frontend_handle;
+ rlogin->term_width = cfg.width;
+ rlogin->term_height = cfg.height;
+ *backend_handle = rlogin;
/*
* Try to find host.
sprintf(buf, "Connecting to %.100s port %d", addrbuf, port);
logevent(buf);
}
- s = new_connection(addr, *realhost, port, 1, 0, nodelay, &fn_table_ptr);
- if ((err = sk_socket_error(s)))
+ rlogin->s = new_connection(addr, *realhost, port, 1, 0,
+ nodelay, (Plug) rlogin);
+ if ((err = sk_socket_error(rlogin->s)))
return err;
sk_addr_free(addr);
{
char z = 0;
char *p;
- sk_write(s, &z, 1);
- sk_write(s, cfg.localusername, strlen(cfg.localusername));
- sk_write(s, &z, 1);
- sk_write(s, cfg.username, strlen(cfg.username));
- sk_write(s, &z, 1);
- sk_write(s, cfg.termtype, strlen(cfg.termtype));
- sk_write(s, "/", 1);
+ sk_write(rlogin->s, &z, 1);
+ sk_write(rlogin->s, cfg.localusername, strlen(cfg.localusername));
+ sk_write(rlogin->s, &z, 1);
+ sk_write(rlogin->s, cfg.username, strlen(cfg.username));
+ sk_write(rlogin->s, &z, 1);
+ sk_write(rlogin->s, cfg.termtype, strlen(cfg.termtype));
+ sk_write(rlogin->s, "/", 1);
for (p = cfg.termspeed; isdigit(*p); p++);
- sk_write(s, cfg.termspeed, p - cfg.termspeed);
- rlogin_bufsize = sk_write(s, &z, 1);
+ sk_write(rlogin->s, cfg.termspeed, p - cfg.termspeed);
+ rlogin->bufsize = sk_write(rlogin->s, &z, 1);
}
return NULL;
/*
* Called to send data down the rlogin connection.
*/
-static int rlogin_send(char *buf, int len)
+static int rlogin_send(void *handle, char *buf, int len)
{
- if (s == NULL)
+ Rlogin rlogin = (Rlogin) handle;
+
+ if (rlogin->s == NULL)
return 0;
- rlogin_bufsize = sk_write(s, buf, len);
+ rlogin->bufsize = sk_write(rlogin->s, buf, len);
- return rlogin_bufsize;
+ return rlogin->bufsize;
}
/*
* Called to query the current socket sendability status.
*/
-static int rlogin_sendbuffer(void)
+static int rlogin_sendbuffer(void *handle)
{
- return rlogin_bufsize;
+ Rlogin rlogin = (Rlogin) handle;
+ return rlogin->bufsize;
}
/*
* Called to set the size of the window
*/
-static void rlogin_size(int width, int height)
+static void rlogin_size(void *handle, int width, int height)
{
+ Rlogin rlogin = (Rlogin) handle;
char b[12] = { '\xFF', '\xFF', 0x73, 0x73, 0, 0, 0, 0, 0, 0, 0, 0 };
- rlogin_term_width = width;
- rlogin_term_height = height;
+ rlogin->term_width = width;
+ rlogin->term_height = height;
- if (s == NULL)
+ if (rlogin->s == NULL)
return;
- b[6] = rlogin_term_width >> 8;
- b[7] = rlogin_term_width & 0xFF;
- b[4] = rlogin_term_height >> 8;
- b[5] = rlogin_term_height & 0xFF;
- rlogin_bufsize = sk_write(s, b, 12);
+ b[6] = rlogin->term_width >> 8;
+ b[7] = rlogin->term_width & 0xFF;
+ b[4] = rlogin->term_height >> 8;
+ b[5] = rlogin->term_height & 0xFF;
+ rlogin->bufsize = sk_write(rlogin->s, b, 12);
return;
}
/*
* Send rlogin special codes.
*/
-static void rlogin_special(Telnet_Special code)
+static void rlogin_special(void *handle, Telnet_Special code)
{
/* Do nothing! */
return;
}
-static Socket rlogin_socket(void)
+static Socket rlogin_socket(void *handle)
{
- return s;
+ Rlogin rlogin = (Rlogin) handle;
+ return rlogin->s;
}
-static int rlogin_sendok(void)
+static int rlogin_sendok(void *handle)
{
+ Rlogin rlogin = (Rlogin) handle;
return 1;
}
-static void rlogin_unthrottle(int backlog)
+static void rlogin_unthrottle(void *handle, int backlog)
{
- sk_set_frozen(s, backlog > RLOGIN_MAX_BACKLOG);
+ Rlogin rlogin = (Rlogin) handle;
+ sk_set_frozen(rlogin->s, backlog > RLOGIN_MAX_BACKLOG);
}
-static int rlogin_ldisc(int option)
+static int rlogin_ldisc(void *handle, int option)
{
+ Rlogin rlogin = (Rlogin) handle;
return 0;
}
-static int rlogin_exitcode(void)
+static int rlogin_exitcode(void *handle)
{
+ Rlogin rlogin = (Rlogin) handle;
/* If we ever implement RSH, we'll probably need to do this properly */
return 0;
}
projects / u / mdw / putty / blobdiff