git.distorted.org.uk Git - u/mdw/putty/blame_incremental

... / ...

Commit	Line	Data
	1	#include <windows.h>
	2	#include <stdio.h>
	3	#include <stdlib.h>
	4
	5	#include "putty.h"
	6
	7	#ifndef FALSE
	8	#define FALSE 0
	9	#endif
	10	#ifndef TRUE
	11	#define TRUE 1
	12	#endif
	13
	14	static Socket s = NULL;
	15
	16	static void raw_size(void);
	17
	18	static int sb_opt, sb_len;
	19	static char *sb_buf = NULL;
	20	static int sb_size = 0;
	21	#define SB_DELTA 1024
	22
	23	static void c_write (char *buf, int len) {
	24	from_backend(0, buf, len);
	25	}
	26
	27	static int raw_receive (Socket s, int urgent, char *data, int len) {
	28	if (!len) {
	29	/* Connection has closed. */
	30	sk_close(s);
	31	s = NULL;
	32	return 0;
	33	}
	34	c_write(data, len);
	35	return 1;
	36	}
	37
	38	/*
	39	* Called to set up the raw connection.
	40	*
	41	* Returns an error message, or NULL on success.
	42	*
	43	* Also places the canonical host name into `realhost'.
	44	*/
	45	static char raw_init (char host, int port, char **realhost) {
	46	SockAddr addr;
	47	char *err;
	48
	49	/*
	50	* Try to find host.
	51	*/
	52	addr = sk_namelookup(host, realhost);
	53	if ( (err = sk_addr_error(addr)) )
	54	return err;
	55
	56	if (port < 0)
	57	port = 23; /* default telnet port */
	58
	59	/*
	60	* Open socket.
	61	*/
	62	s = sk_new(addr, port, raw_receive);
	63	if ( (err = sk_socket_error(s)) )
	64	return err;
	65
	66	sk_addr_free(addr);
	67
	68	/*
	69	* We have no pre-session phase.
	70	*/
	71	begin_session();
	72
	73	return NULL;
	74	}
	75
	76	/*
	77	* Called to send data down the raw connection.
	78	*/
	79	static void raw_send (char *buf, int len) {
	80
	81	if (s == NULL)
	82	return;
	83
	84	sk_write(s, buf, len);
	85	}
	86
	87	/*
	88	* Called to set the size of the window
	89	*/
	90	static void raw_size(void) {
	91	/* Do nothing! */
	92	return;
	93	}
	94
	95	/*
	96	* Send raw special codes.
	97	*/
	98	static void raw_special (Telnet_Special code) {
	99	/* Do nothing! */
	100	return;
	101	}
	102
	103	static Socket raw_socket(void) { return s; }
	104
	105	static int raw_sendok(void) { return 1; }
	106
	107	Backend raw_backend = {
	108	raw_init,
	109	raw_send,
	110	raw_size,
	111	raw_special,
	112	raw_socket,
	113	raw_sendok,
	114	1
	115	};