2 * Copyright (c) 1999 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.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Markus Friedl.
15 * 4. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 RCSID("$OpenBSD: compat.c,v 1.21 2000/08/27 18:18:04 markus Exp $");
45 verbose("Enabling compatibility mode for protocol 2.0");
51 verbose("Enabling compatibility mode for protocol 1.3");
54 /* datafellows bug compatibility */
56 compat_datafellows(const char *version)
64 {"2.1.0", SSH_BUG_SIGBLOB|SSH_BUG_HMAC},
65 {"2.0.1", SSH_BUG_SIGBLOB|SSH_BUG_HMAC|SSH_BUG_PUBKEYAUTH|SSH_BUG_X11FWD},
66 {"2.", SSH_BUG_HMAC|SSH_COMPAT_SESSIONID_ENCODING},
69 /* process table, return first match */
70 for (i = 0; check[i].version; i++) {
71 len = strlen(check[i].version);
72 if (strlen(version) >= len &&
73 (strncmp(version, check[i].version, len) == 0)) {
74 verbose("datafellows: %.200s", version);
75 datafellows = check[i].bugs;
83 proto_spec(const char *spec)
86 int ret = SSH_PROTO_UNKNOWN;
90 q = s = xstrdup(spec);
91 for ((p = strsep(&q, SEP)); p && *p != '\0'; (p = strsep(&q, SEP))) {
94 if (ret == SSH_PROTO_UNKNOWN)
95 ret |= SSH_PROTO_1_PREFERRED;
102 log("ignoring bad proto spec: '%s'.", p);