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 void c_write(char *buf, int len)
	19	{
	20	from_backend(0, buf, len);
	21	}
	22
	23	static int raw_closing(Plug plug, char *error_msg, int error_code,
	24	int calling_back)
	25	{
	26	sk_close(s);
	27	s = NULL;
	28	if (error_msg) {
	29	/* A socket error has occurred. */
	30	connection_fatal(error_msg);
	31	} /* Otherwise, the remote side closed the connection normally. */
	32	return 0;
	33	}
	34
	35	static int raw_receive(Plug plug, int urgent, char *data, int len)
	36	{
	37	c_write(data, len);
	38	return 1;
	39	}
	40
	41	/*
	42	* Called to set up the raw connection.
	43	*
	44	* Returns an error message, or NULL on success.
	45	*
	46	* Also places the canonical host name into `realhost'. It must be
	47	* freed by the caller.
	48	*/
	49	static char raw_init(char host, int port, char **realhost)
	50	{
	51	static struct plug_function_table fn_table = {
	52	raw_closing,
	53	raw_receive
	54	}, *fn_table_ptr = &fn_table;
	55
	56	SockAddr addr;
	57	char *err;
	58
	59	/*
	60	* Try to find host.
	61	*/
	62	addr = sk_namelookup(host, realhost);
	63	if ((err = sk_addr_error(addr)))
	64	return err;
	65
	66	if (port < 0)
	67	port = 23; /* default telnet port */
	68
	69	/*
	70	* Open socket.
	71	*/
	72	s = sk_new(addr, port, 0, 1, &fn_table_ptr);
	73	if ((err = sk_socket_error(s)))
	74	return err;
	75
	76	sk_addr_free(addr);
	77
	78	return NULL;
	79	}
	80
	81	/*
	82	* Called to send data down the raw connection.
	83	*/
	84	static void raw_send(char *buf, int len)
	85	{
	86
	87	if (s == NULL)
	88	return;
	89
	90	sk_write(s, buf, len);
	91	}
	92
	93	/*
	94	* Called to set the size of the window
	95	*/
	96	static void raw_size(void)
	97	{
	98	/* Do nothing! */
	99	return;
	100	}
	101
	102	/*
	103	* Send raw special codes.
	104	*/
	105	static void raw_special(Telnet_Special code)
	106	{
	107	/* Do nothing! */
	108	return;
	109	}
	110
	111	static Socket raw_socket(void)
	112	{
	113	return s;
	114	}
	115
	116	static int raw_sendok(void)
	117	{
	118	return 1;
	119	}
	120
	121	static int raw_ldisc(int option)
	122	{
	123	if (option == LD_EDIT \|\| option == LD_ECHO)
	124	return 1;
	125	return 0;
	126	}
	127
	128	Backend raw_backend = {
	129	raw_init,
	130	raw_send,
	131	raw_size,
	132	raw_special,
	133	raw_socket,
	134	raw_sendok,
	135	raw_ldisc,
	136	1
	137	};