Annotation of src/usr.bin/ssh/dispatch.c, Revision 1.11
1.1 markus 1: /*
2: * Copyright (c) 2000 Markus Friedl. All rights reserved.
3: *
4: * Redistribution and use in source and binary forms, with or without
5: * modification, are permitted provided that the following conditions
6: * are met:
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.
12: *
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.
23: */
24: #include "includes.h"
1.11 ! markus 25: RCSID("$OpenBSD: dispatch.c,v 1.10 2001/02/18 18:33:53 markus Exp $");
1.7 markus 26:
1.6 markus 27: #include "ssh1.h"
1.8 markus 28: #include "ssh2.h"
1.7 markus 29: #include "log.h"
1.1 markus 30: #include "dispatch.h"
31: #include "packet.h"
1.8 markus 32: #include "compat.h"
1.1 markus 33:
34: #define DISPATCH_MIN 0
35: #define DISPATCH_MAX 255
36:
37: dispatch_fn *dispatch[DISPATCH_MAX];
38:
39: void
1.5 markus 40: dispatch_protocol_error(int type, int plen, void *ctxt)
1.1 markus 41: {
1.11 ! markus 42: fatal("dispatch_protocol_error: type %d plen %d", type, plen);
1.1 markus 43: }
1.2 markus 44: void
1.1 markus 45: dispatch_init(dispatch_fn *dflt)
46: {
47: int i;
48: for (i = 0; i < DISPATCH_MAX; i++)
49: dispatch[i] = dflt;
50: }
51: void
52: dispatch_set(int type, dispatch_fn *fn)
53: {
54: dispatch[type] = fn;
55: }
56: void
1.5 markus 57: dispatch_run(int mode, int *done, void *ctxt)
1.1 markus 58: {
59: for (;;) {
60: int plen;
61: int type;
62:
63: if (mode == DISPATCH_BLOCK) {
64: type = packet_read(&plen);
65: } else {
66: type = packet_read_poll(&plen);
67: if (type == SSH_MSG_NONE)
68: return;
69: }
70: if (type > 0 && type < DISPATCH_MAX && dispatch[type] != NULL)
1.5 markus 71: (*dispatch[type])(type, plen, ctxt);
1.1 markus 72: else
1.9 stevesk 73: packet_disconnect("protocol error: rcvd type %d", type);
1.1 markus 74: if (done != NULL && *done)
75: return;
76: }
77: }