2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 RCSID("$OpenBSD: dispatch.c,v 1.10 2001/02/18 18:33:53 markus Exp $");
34 #define DISPATCH_MIN 0
35 #define DISPATCH_MAX 255
37 dispatch_fn *dispatch[DISPATCH_MAX];
40 dispatch_protocol_error(int type, int plen, void *ctxt)
42 error("Hm, dispatch protocol error: type %d plen %d", type, plen);
43 if (compat20 && type == SSH2_MSG_KEXINIT)
44 fatal("dispatch_protocol_error: rekeying is not supported");
47 dispatch_init(dispatch_fn *dflt)
50 for (i = 0; i < DISPATCH_MAX; i++)
54 dispatch_set(int type, dispatch_fn *fn)
59 dispatch_run(int mode, int *done, void *ctxt)
65 if (mode == DISPATCH_BLOCK) {
66 type = packet_read(&plen);
68 type = packet_read_poll(&plen);
69 if (type == SSH_MSG_NONE)
72 if (type > 0 && type < DISPATCH_MAX && dispatch[type] != NULL)
73 (*dispatch[type])(type, plen, ctxt);
75 packet_disconnect("protocol error: rcvd type %d", type);
76 if (done != NULL && *done)