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/*
* Copyright (c) 1993, 1994 Washington University in Saint Louis 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 the
* Washington University in Saint Louis and its contributors. 4. Neither the
* name of the University nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASHINGTON UNIVERSITY AND CONTRIBUTORS ``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 WASHINGTON UNIVERSITY OR CONTRIBUTORS
* 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.
*/
#ifndef lint
static char rcsid[] = "@(#)$Id: authenticate.c,v 1.4 1997/03/03 09:39:42 sob Exp sob $";
#endif /* not lint */
#include "config.h"
#include <stdio.h>
#include <string.h>
#include "support/authuser.h"
#include "authenticate.h"
#if USE_A_RFC931
#include <signal.h>
#include <setjmp.h>
#define RFC931_Timeout 10
static jmp_buf timebuf;
#endif /* USE_A_RFC931 */
#define AUTHNAMESIZE 100
char authuser[AUTHNAMESIZE];
int authenticated;
#if USE_A_RFC931
static void
timout (sig)
int sig;
{
longjmp (timebuf, sig);
}
#endif /* USE_A_RFC931 */
/*
* This routine actually returns nothing. It just sets the authenticated global
* variable.
*/
int
authenticate()
{
#if USE_A_RFC931
unsigned long in;
unsigned short local,
remote;
#endif /* USE_A_RFC931 */
char *user;
/*
* Ideally more authentication schemes would be called from here, with the
* strongest called first. One possible double-check would be to verify that
* the results of all authentication calls (returning identical data!) are
* checked against each other.
*/
authenticated = 0; /* this is a bitmask, one bit per method */
user = "*";
#if USE_A_RFC931
/*
* Set up a timer so we won't get stuck while waiting for the server.
*/
signal (SIGALRM, timout);
if (auth_fd(0, &in, &local, &remote) == -1)
user = "?"; /* getpeername/getsockname failure */
else
{
alarm (RFC931_Timeout);
if (setjmp (timebuf) != 0 || !(user = auth_tcpuser (in, local, remote)))
{
user = "*"; /* remote host doesn't support RFC 931 */
}
else
{
authenticated |= A_RFC931;
}
alarm (0);
}
#endif /* USE_A_RFC931 */
strncpy(authuser, user, sizeof(authuser));
authuser[AUTHNAMESIZE - 1] = '\0';
return(0);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.