home *** CD-ROM | disk | FTP | other *** search
- /* 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.
- */
-
- #include "config.h"
-
- #include "stdio.h"
- #include "string.h"
- #include "authuser.h"
- #include "authenticate.h"
-
- #define AUTHNAMESIZE 100
-
- char authuser[AUTHNAMESIZE];
- int authenticated;
-
- 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
- if (auth_fd(0, &in, &local, &remote) == -1)
- user = "?"; /* getpeername/getsockname failure */
- else {
- if (!(user = auth_tcpuser(in, local, remote))) {
- user = "*"; /* remote host doesn't support RFC 931 */
- } else {
- authenticated |= A_RFC931;
- }
- }
- #endif /* USE_A_RFC931 */
-
- strncpy(authuser, user, sizeof(authuser));
- authuser[AUTHNAMESIZE - 1] = '\0';
- }
-