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