openssh/compat.c
Damien Miller eba71bab9b - Merge big update to OpenSSH-2.0 from OpenBSD CVS
[README.openssh2]
   - interop w/ F-secure windows client
   - sync documentation
   - ssh_host_dsa_key not ssh_dsa_key
   [auth-rsa.c]
   - missing fclose
   [auth.c authfile.c compat.c dsa.c dsa.h hostfile.c key.c key.h radix.c]
   [readconf.c readconf.h ssh-add.c ssh-keygen.c ssh.c ssh.h sshconnect.c]
   [sshd.c uuencode.c uuencode.h authfile.h]
   - add DSA pubkey auth and other SSH2 fixes.  use ssh-keygen -[xX]
     for trading keys with the real and the original SSH, directly from the
     people who invented the SSH protocol.
   [auth.c auth.h authfile.c sshconnect.c auth1.c auth2.c sshconnect.h]
   [sshconnect1.c sshconnect2.c]
   - split auth/sshconnect in one file per protocol version
   [sshconnect2.c]
   - remove debug
   [uuencode.c]
   - add trailing =
   [version.h]
   - OpenSSH-2.0
   [ssh-keygen.1 ssh-keygen.c]
   - add -R flag: exit code indicates if RSA is alive
   [sshd.c]
   - remove unused
     silent if -Q is specified
   [ssh.h]
   - host key becomes /etc/ssh_host_dsa_key
   [readconf.c servconf.c ]
   - ssh/sshd default to proto 1 and 2
   [uuencode.c]
   - remove debug
   [auth2.c ssh-keygen.c sshconnect2.c sshd.c]
   - xfree DSA blobs
   [auth2.c serverloop.c session.c]
   - cleanup logging for sshd/2, respect PasswordAuth no
   [sshconnect2.c]
   - less debug, respect .ssh/config
   [README.openssh2 channels.c channels.h]
   - clientloop.c session.c ssh.c
   - support for x11-fwding, client+server
2000-04-29 23:57:08 +10:00

102 lines
2.9 KiB
C

/*
* Copyright (c) 1999 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Markus Friedl.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
RCSID("$Id: compat.c,v 1.9 2000/04/29 13:57:10 damien Exp $");
#include "ssh.h"
#include "packet.h"
#include "xmalloc.h"
#include "compat.h"
int compat13 = 0;
int compat20 = 0;
int datafellows = 0;
void
enable_compat20(void)
{
verbose("Enabling compatibility mode for protocol 2.0");
compat20 = 1;
}
void
enable_compat13(void)
{
verbose("Enabling compatibility mode for protocol 1.3");
compat13 = 1;
}
/* datafellows bug compatibility */
void
compat_datafellows(const char *version)
{
int i;
size_t len;
static const char *check[] = {
"2.0.1",
"2.1.0",
NULL
};
for (i = 0; check[i]; i++) {
len = strlen(check[i]);
if (strlen(version) >= len &&
(strncmp(version, check[i], len) == 0)) {
verbose("datafellows: %.200s", version);
datafellows = 1;
return;
}
}
}
#define SEP ","
int
proto_spec(const char *spec)
{
char *s = xstrdup(spec);
char *p;
int ret = SSH_PROTO_UNKNOWN;
for ((p = strtok(s, SEP)); p; (p = strtok(NULL, SEP))) {
switch(atoi(p)) {
case 1:
if (ret == SSH_PROTO_UNKNOWN)
ret |= SSH_PROTO_1_PREFERRED;
ret |= SSH_PROTO_1;
break;
case 2:
ret |= SSH_PROTO_2;
break;
default:
log("ignoring bad proto spec: '%s'.", p);
break;
}
}
xfree(s);
return ret;
}