#define TRUE 1
#endif
+#define RAW_MAX_BACKLOG 4096
+
static Socket s = NULL;
+static int raw_bufsize;
static void raw_size(void);
-static int sb_opt, sb_len;
-static char *sb_buf = NULL;
-static int sb_size = 0;
-#define SB_DELTA 1024
-
static void c_write(char *buf, int len)
{
- from_backend(0, buf, len);
+ int backlog = from_backend(0, buf, len);
+ sk_set_frozen(s, backlog > RAW_MAX_BACKLOG);
}
static int raw_closing(Plug plug, char *error_msg, int error_code,
int calling_back)
{
- sk_close(s);
- s = NULL;
+ if (s) {
+ sk_close(s);
+ s = NULL;
+ }
if (error_msg) {
/* A socket error has occurred. */
connection_fatal(error_msg);
return 1;
}
+static void raw_sent(Plug plug, int bufsize)
+{
+ raw_bufsize = bufsize;
+}
+
/*
* Called to set up the raw connection.
*
{
static struct plug_function_table fn_table = {
raw_closing,
- raw_receive
+ raw_receive,
+ raw_sent
}, *fn_table_ptr = &fn_table;
SockAddr addr;
/*
* Try to find host.
*/
+ {
+ char buf[200];
+ sprintf(buf, "Looking up host \"%.170s\"", host);
+ logevent(buf);
+ }
addr = sk_namelookup(host, realhost);
if ((err = sk_addr_error(addr)))
return err;
/*
* Open socket.
*/
+ {
+ char buf[200], addrbuf[100];
+ sk_getaddr(addr, addrbuf, 100);
+ sprintf(buf, "Connecting to %.100s port %d", addrbuf, port);
+ logevent(buf);
+ }
s = sk_new(addr, port, 0, 1, &fn_table_ptr);
if ((err = sk_socket_error(s)))
return err;
/*
* Called to send data down the raw connection.
*/
-static void raw_send(char *buf, int len)
+static int raw_send(char *buf, int len)
{
-
if (s == NULL)
- return;
+ return 0;
- sk_write(s, buf, len);
+ raw_bufsize = sk_write(s, buf, len);
+
+ return raw_bufsize;
+}
+
+/*
+ * Called to query the current socket sendability status.
+ */
+static int raw_sendbuffer(void)
+{
+ return raw_bufsize;
}
/*
return 1;
}
+static void raw_unthrottle(int backlog)
+{
+ sk_set_frozen(s, backlog > RAW_MAX_BACKLOG);
+}
+
static int raw_ldisc(int option)
{
if (option == LD_EDIT || option == LD_ECHO)
Backend raw_backend = {
raw_init,
raw_send,
+ raw_sendbuffer,
raw_size,
raw_special,
raw_socket,
raw_sendok,
raw_ldisc,
+ raw_unthrottle,
1
};