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

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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	{
	25	from_backend(0, buf, len);
	26	}
	27
	28	static int raw_closing(Plug plug, char *error_msg, int error_code,
	29	int calling_back)
	30	{
	31	sk_close(s);
	32	s = NULL;
	33	if (error_msg) {
	34	/* A socket error has occurred. */
	35	connection_fatal(error_msg);
	36	} /* Otherwise, the remote side closed the connection normally. */
	37	return 0;
	38	}
	39
	40	static int raw_receive(Plug plug, int urgent, char *data, int len)
	41	{
	42	c_write(data, len);
	43	return 1;
	44	}
	45
	46	/*
	47	* Called to set up the raw connection.
	48	*
	49	* Returns an error message, or NULL on success.
	50	*
	51	* Also places the canonical host name into `realhost'.
	52	*/
	53	static char raw_init(char host, int port, char **realhost)
	54	{
	55	static struct plug_function_table fn_table = {
	56	raw_closing,
	57	raw_receive
	58	}, *fn_table_ptr = &fn_table;
	59
	60	SockAddr addr;
	61	char *err;
	62
	63	/*
	64	* Try to find host.
	65	*/
	66	addr = sk_namelookup(host, realhost);
	67	if ((err = sk_addr_error(addr)))
	68	return err;
	69
	70	if (port < 0)
	71	port = 23; /* default telnet port */
	72
	73	/*
	74	* Open socket.
	75	*/
	76	s = sk_new(addr, port, 0, 1, &fn_table_ptr);
	77	if ((err = sk_socket_error(s)))
	78	return err;
	79
	80	sk_addr_free(addr);
	81
	82	return NULL;
	83	}
	84
	85	/*
	86	* Called to send data down the raw connection.
	87	*/
	88	static void raw_send(char *buf, int len)
	89	{
	90
	91	if (s == NULL)
	92	return;
	93
	94	sk_write(s, buf, len);
	95	}
	96
	97	/*
	98	* Called to set the size of the window
	99	*/
	100	static void raw_size(void)
	101	{
	102	/* Do nothing! */
	103	return;
	104	}
	105
	106	/*
	107	* Send raw special codes.
	108	*/
	109	static void raw_special(Telnet_Special code)
	110	{
	111	/* Do nothing! */
	112	return;
	113	}
	114
	115	static Socket raw_socket(void)
	116	{
	117	return s;
	118	}
	119
	120	static int raw_sendok(void)
	121	{
	122	return 1;
	123	}
	124
	125	static int raw_ldisc(int option)
	126	{
	127	if (option == LD_EDIT \|\| option == LD_ECHO)
	128	return 1;
	129	return 0;
	130	}
	131
	132	Backend raw_backend = {
	133	raw_init,
	134	raw_send,
	135	raw_size,
	136	raw_special,
	137	raw_socket,
	138	raw_sendok,
	139	raw_ldisc,
	140	1
	141	};