ae77177087
several new kerberos related libraries and applications to FreeBSD:
o kgetcred(1) allows one to manually get a ticket for a particular service.
o kf(1) securily forwards ticket to another host through an authenticated
and encrypted stream.
o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1)
and other user kerberos operations. klist and kswitch are just symlinks
to kcc(1) now.
o kswitch(1) allows you to easily switch between kerberos credentials if
you're running KCM.
o hxtool(1) is a certificate management tool to use with PKINIT.
o string2key(1) maps a password into key.
o kdigest(8) is a userland tool to access the KDC's digest interface.
o kimpersonate(8) creates a "fake" ticket for a service.
We also now install manpages for some lirbaries that were not installed
before, libheimntlm and libhx509.
- The new HEIMDAL version no longer supports Kerberos 4. All users are
recommended to switch to Kerberos 5.
- Weak ciphers are now disabled by default. To enable DES support (used
by telnet(8)), use "allow_weak_crypto" option in krb5.conf.
- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings
disabled due to the function they use (krb5_get_err_text(3)) being
deprecated. I plan to work on this next.
- Heimdal's KDC now require sqlite to operate. We use the bundled version
and install it as libheimsqlite. If some other FreeBSD components will
require it in the future we can rename it to libbsdsqlite and use for these
components as well.
- This is not a latest Heimdal version, the new one was released while I was
working on the update. I will update it to 1.5.2 soon, as it fixes some
important bugs and security issues.
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* a *lot* of ugly global definitions that really should be removed...
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*/
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#include "telnetd.h"
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RCSID("$Id$");
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/*
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* Telnet server variable declarations
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*/
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char options[256];
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char do_dont_resp[256];
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char will_wont_resp[256];
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int linemode; /* linemode on/off */
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int flowmode; /* current flow control state */
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int restartany; /* restart output on any character state */
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#ifdef DIAGNOSTICS
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int diagnostic; /* telnet diagnostic capabilities */
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#endif /* DIAGNOSTICS */
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int require_otp;
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slcfun slctab[NSLC + 1]; /* slc mapping table */
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char terminaltype[41];
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/*
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* I/O data buffers, pointers, and counters.
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*/
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char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
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char netibuf[BUFSIZ], *netip;
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char netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;
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char *neturg; /* one past last bye of urgent data */
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int pcc, ncc;
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int ourpty, net;
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int SYNCHing; /* we are in TELNET SYNCH mode */
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/*
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* The following are some clocks used to decide how to interpret
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* the relationship between various variables.
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*/
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struct clocks_t clocks;
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/* whether to log unauthenticated login attempts */
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int log_unauth;
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/* do not print warning if connection is not encrypted */
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int no_warn;
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/*
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* This function appends data to nfrontp and advances nfrontp.
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*/
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int
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output_data (const char *format, ...)
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{
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va_list args;
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int remaining, ret;
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va_start(args, format);
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remaining = BUFSIZ - (nfrontp - netobuf);
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ret = vsnprintf (nfrontp,
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remaining,
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format,
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args);
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nfrontp += min(ret, remaining-1);
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va_end(args);
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return ret;
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}
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