Annotation of src/usr.bin/ssh/dispatch.c, Revision 1.6
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"
1.6 ! markus 25: RCSID("$OpenBSD: dispatch.c,v 1.5 2000/09/21 11:25:34 markus Exp $");
1.1 markus 26: #include "ssh.h"
1.6 ! markus 27: #include "ssh1.h"
1.1 markus 28: #include "dispatch.h"
29: #include "packet.h"
30:
31: #define DISPATCH_MIN 0
32: #define DISPATCH_MAX 255
33:
34: dispatch_fn *dispatch[DISPATCH_MAX];
35:
36: void
1.5 markus 37: dispatch_protocol_error(int type, int plen, void *ctxt)
1.1 markus 38: {
39: error("Hm, dispatch protocol error: type %d plen %d", type, plen);
40: }
1.2 markus 41: void
1.1 markus 42: dispatch_init(dispatch_fn *dflt)
43: {
44: int i;
45: for (i = 0; i < DISPATCH_MAX; i++)
46: dispatch[i] = dflt;
47: }
48: void
49: dispatch_set(int type, dispatch_fn *fn)
50: {
51: dispatch[type] = fn;
52: }
53: void
1.5 markus 54: dispatch_run(int mode, int *done, void *ctxt)
1.1 markus 55: {
56: for (;;) {
57: int plen;
58: int type;
59:
60: if (mode == DISPATCH_BLOCK) {
61: type = packet_read(&plen);
62: } else {
63: type = packet_read_poll(&plen);
64: if (type == SSH_MSG_NONE)
65: return;
66: }
67: if (type > 0 && type < DISPATCH_MAX && dispatch[type] != NULL)
1.5 markus 68: (*dispatch[type])(type, plen, ctxt);
1.1 markus 69: else
70: packet_disconnect("protocol error: rcvd type %d", type);
71: if (done != NULL && *done)
72: return;
73: }
74: }