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- /*
- * Copyright (c) 1999 Simon Tatham
- * Copyright (c) 1999 Ben Harris
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
- /* PuTTY test backends */
- #include <stdio.h>
- #include <stdlib.h>
- #include "putty.h"
- static char *loop_init(const BackendVtable *, Seat *, Backend **, LogContext *,
- Conf *, const char *, int, char **, bool, bool);
- static void loop_free(Backend *);
- static void null_reconfig(Backend *, Conf *);
- static void null_send(Backend *, const char *, size_t);
- static void loop_send(Backend *, const char *, size_t);
- static size_t null_sendbuffer(Backend *);
- static size_t loop_sendbuffer(Backend *);
- static void null_size(Backend *, int, int);
- static void null_special(Backend *, SessionSpecialCode, int);
- static const SessionSpecial *null_get_specials(Backend *);
- static bool null_connected(Backend *);
- static int null_exitcode(Backend *);
- static bool null_sendok(Backend *);
- static bool null_ldisc(Backend *, int);
- static void null_provide_ldisc(Backend *, Ldisc *);
- static void null_unthrottle(Backend *, size_t);
- static int null_cfg_info(Backend *);
- const BackendVtable null_backend = {
- .init = loop_init,
- .free = loop_free,
- .reconfig = null_reconfig,
- .send = null_send,
- .sendbuffer = null_sendbuffer,
- .size = null_size,
- .special = null_special,
- .get_specials = null_get_specials,
- .connected = null_connected,
- .exitcode = null_exitcode,
- .sendok = null_sendok,
- .ldisc_option_state = null_ldisc,
- .provide_ldisc = null_provide_ldisc,
- .unthrottle = null_unthrottle,
- .cfg_info = null_cfg_info,
- .id = "null",
- .displayname_tc = "Null",
- .displayname_lc = "null",
- .protocol = -1,
- .default_port = 0,
- };
- const BackendVtable loop_backend = {
- .init = loop_init,
- .free = loop_free,
- .reconfig = null_reconfig,
- .send = loop_send,
- .sendbuffer = loop_sendbuffer,
- .size = null_size,
- .special = null_special,
- .get_specials = null_get_specials,
- .connected = null_connected,
- .exitcode = null_exitcode,
- .sendok = null_sendok,
- .ldisc_option_state = null_ldisc,
- .provide_ldisc = null_provide_ldisc,
- .unthrottle = null_unthrottle,
- .cfg_info = null_cfg_info,
- .id = "loop",
- .displayname_tc = "Loop",
- .displayname_lc = "loop",
- .protocol = -1,
- .default_port = 0,
- };
- struct loop_state {
- Seat *seat;
- Backend backend;
- size_t sendbuffer;
- };
- static char *loop_init(const BackendVtable *vt, Seat *seat,
- Backend **backend_handle, LogContext *logctx,
- Conf *conf, const char *host, int port,
- char **realhost, bool nodelay, bool keepalive) {
- struct loop_state *st = snew(struct loop_state);
- /* No local authentication phase in this protocol */
- seat_set_trust_status(seat, false);
- st->seat = seat;
- st->backend.vt = vt;
- *backend_handle = &st->backend;
- *realhost = dupstr(host);
- return NULL;
- }
- static void loop_free(Backend *be)
- {
- struct loop_state *st = container_of(be, struct loop_state, backend);
- sfree(st);
- }
- static void null_reconfig(Backend *be, Conf *conf) {
- }
- static void null_send(Backend *be, const char *buf, size_t len) {
- }
- static void loop_send(Backend *be, const char *buf, size_t len) {
- struct loop_state *st = container_of(be, struct loop_state, backend);
- st->sendbuffer = seat_output(st->seat, 0, buf, len);
- }
- static size_t null_sendbuffer(Backend *be) {
- return 0;
- }
- static size_t loop_sendbuffer(Backend *be) {
- struct loop_state *st = container_of(be, struct loop_state, backend);
- return st->sendbuffer;
- }
- static void null_size(Backend *be, int width, int height) {
- }
- static void null_special(Backend *be, SessionSpecialCode code, int arg) {
- }
- static const SessionSpecial *null_get_specials (Backend *be) {
- return NULL;
- }
- static bool null_connected(Backend *be) {
- return false;
- }
- static int null_exitcode(Backend *be) {
- return 0;
- }
- static bool null_sendok(Backend *be) {
- return true;
- }
- static void null_unthrottle(Backend *be, size_t backlog) {
- }
- static bool null_ldisc(Backend *be, int option) {
- return false;
- }
- static void null_provide_ldisc (Backend *be, Ldisc *ldisc) {
- }
- static int null_cfg_info(Backend *be)
- {
- return 0;
- }
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