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dispatch.h
1 /* $OpenBSD: dispatch.h,v 1.15 2019/01/19 21:45:31 djm Exp $ */
2 
3 /*
4  * Copyright (c) 2000 Markus Friedl. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #ifndef DISPATCH_H
28 #define DISPATCH_H
29 
30 #define DISPATCH_MAX 255
31 
32 enum {
33  DISPATCH_BLOCK,
34  DISPATCH_NONBLOCK
35 };
36 
37 struct ssh;
38 
39 typedef int dispatch_fn(int, u_int32_t, struct ssh *);
40 
41 int dispatch_protocol_error(int, u_int32_t, struct ssh *);
42 int dispatch_protocol_ignore(int, u_int32_t, struct ssh *);
43 void ssh_dispatch_init(struct ssh *, dispatch_fn *);
44 void ssh_dispatch_set(struct ssh *, int, dispatch_fn *);
45 void ssh_dispatch_range(struct ssh *, u_int, u_int, dispatch_fn *);
46 int ssh_dispatch_run(struct ssh *, int, volatile sig_atomic_t *);
47 void ssh_dispatch_run_fatal(struct ssh *, int, volatile sig_atomic_t *);
48 
49 #endif