8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
174 lines
4.3 KiB
C
174 lines
4.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2009, Sun Microsystems, Inc.
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* 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 are met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Sun Microsystems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)publickey.c 1.10 91/03/11 Copyr 1986 Sun Micro";
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* publickey.c
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* Copyright (C) 1986, Sun Microsystems, Inc.
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*/
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/*
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* Public key lookup routines
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*/
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#include "namespace.h"
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#include <stdio.h>
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#include <pwd.h>
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#include <rpc/rpc.h>
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#include <rpc/key_prot.h>
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#include <rpcsvc/yp_prot.h>
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#include <rpcsvc/ypclnt.h>
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#include <string.h>
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#include <stdlib.h>
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#include "un-namespace.h"
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#define PKFILE "/etc/publickey"
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/*
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* Hack to let ypserv/rpc.nisd use AUTH_DES.
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*/
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int (*__getpublickey_LOCAL)(const char *, char *) = 0;
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/*
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* Get somebody's public key
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*/
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static int
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__getpublickey_real(const char *netname, char *publickey)
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{
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char lookup[3 * HEXKEYBYTES];
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char *p;
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if (publickey == NULL)
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return (0);
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if (!getpublicandprivatekey(netname, lookup))
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return (0);
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p = strchr(lookup, ':');
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if (p == NULL) {
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return (0);
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}
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*p = '\0';
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(void) strncpy(publickey, lookup, HEXKEYBYTES);
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publickey[HEXKEYBYTES] = '\0';
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return (1);
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}
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/*
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* reads the file /etc/publickey looking for a + to optionally go to the
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* yellow pages
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*/
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int
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getpublicandprivatekey(const char *key, char *ret)
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{
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char buf[1024]; /* big enough */
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char *res;
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FILE *fd;
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char *mkey;
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char *mval;
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fd = fopen(PKFILE, "r");
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if (fd == NULL)
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return (0);
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for (;;) {
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res = fgets(buf, sizeof(buf), fd);
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if (res == NULL) {
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fclose(fd);
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return (0);
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}
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if (res[0] == '#')
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continue;
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else if (res[0] == '+') {
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#ifdef YP
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char *PKMAP = "publickey.byname";
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char *lookup;
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char *domain;
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int err;
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int len;
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err = yp_get_default_domain(&domain);
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if (err) {
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continue;
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}
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lookup = NULL;
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err = yp_match(domain, PKMAP, key, strlen(key), &lookup, &len);
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if (err) {
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#ifdef DEBUG
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fprintf(stderr, "match failed error %d\n", err);
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#endif
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continue;
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}
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lookup[len] = 0;
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strcpy(ret, lookup);
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fclose(fd);
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free(lookup);
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return (2);
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#else /* YP */
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#ifdef DEBUG
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fprintf(stderr,
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"Bad record in %s '+' -- NIS not supported in this library copy\n", PKFILE);
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#endif /* DEBUG */
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continue;
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#endif /* YP */
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} else {
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mkey = strsep(&res, "\t ");
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if (mkey == NULL) {
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fprintf(stderr,
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"Bad record in %s -- %s", PKFILE, buf);
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continue;
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}
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do {
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mval = strsep(&res, " \t#\n");
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} while (mval != NULL && !*mval);
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if (mval == NULL) {
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fprintf(stderr,
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"Bad record in %s val problem - %s", PKFILE, buf);
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continue;
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}
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if (strcmp(mkey, key) == 0) {
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strcpy(ret, mval);
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fclose(fd);
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return (1);
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}
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}
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}
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}
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int getpublickey(const char *netname, char *publickey)
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{
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if (__getpublickey_LOCAL != NULL)
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return(__getpublickey_LOCAL(netname, publickey));
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else
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return(__getpublickey_real(netname, publickey));
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}
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