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'. It must be
	52	* freed by the caller.
	53	*/
	54	static char raw_init(char host, int port, char **realhost)
	55	{
	56	static struct plug_function_table fn_table = {
	57	raw_closing,
	58	raw_receive
	59	}, *fn_table_ptr = &fn_table;
	60
	61	SockAddr addr;
	62	char *err;
	63
	64	/*
	65	* Try to find host.
	66	*/
	67	addr = sk_namelookup(host, realhost);
	68	if ((err = sk_addr_error(addr)))
	69	return err;
	70
	71	if (port < 0)
	72	port = 23; /* default telnet port */
	73
	74	/*
	75	* Open socket.
	76	*/
	77	s = sk_new(addr, port, 0, 1, &fn_table_ptr);
	78	if ((err = sk_socket_error(s)))
	79	return err;
	80
	81	sk_addr_free(addr);
	82
	83	return NULL;
	84	}
	85
	86	/*
	87	* Called to send data down the raw connection.
	88	*/
	89	static void raw_send(char *buf, int len)
	90	{
	91
	92	if (s == NULL)
	93	return;
	94
	95	sk_write(s, buf, len);
	96	}
	97
	98	/*
	99	* Called to set the size of the window
	100	*/
	101	static void raw_size(void)
	102	{
	103	/* Do nothing! */
	104	return;
	105	}
	106
	107	/*
	108	* Send raw special codes.
	109	*/
	110	static void raw_special(Telnet_Special code)
	111	{
	112	/* Do nothing! */
	113	return;
	114	}
	115
	116	static Socket raw_socket(void)
	117	{
	118	return s;
	119	}
	120
	121	static int raw_sendok(void)
	122	{
	123	return 1;
	124	}
	125
	126	static int raw_ldisc(int option)
	127	{
	128	if (option == LD_EDIT \|\| option == LD_ECHO)
	129	return 1;
	130	return 0;
	131	}
	132
	133	Backend raw_backend = {
	134	raw_init,
	135	raw_send,
	136	raw_size,
	137	raw_special,
	138	raw_socket,
	139	raw_sendok,
	140	raw_ldisc,
	141	1
	142	};