mirror of git://anongit.mindrot.org/openssh.git
105 lines
3.0 KiB
C
105 lines
3.0 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 1.10 2000/05/09 01:03:00 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;
|
|
struct {
|
|
char *version;
|
|
int bugs;
|
|
} check[] = {
|
|
{"2.1.0", SSH_BUG_SIGBLOB|SSH_BUG_HMAC},
|
|
{"2.0.1", SSH_BUG_SIGBLOB|SSH_BUG_HMAC|SSH_BUG_PUBKEYAUTH|SSH_BUG_X11FWD},
|
|
{NULL, 0}
|
|
};
|
|
for (i = 0; check[i].version; i++) {
|
|
len = strlen(check[i].version);
|
|
if (strlen(version) >= len &&
|
|
(strncmp(version, check[i].version, len) == 0)) {
|
|
verbose("datafellows: %.200s", version);
|
|
datafellows = check[i].bugs;
|
|
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;
|
|
}
|