1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1995 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #include <db.h> 38 #include <limits.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <sys/cdefs.h> 43 #include <sys/types.h> 44 #include <rpc/rpc.h> 45 #include <rpcsvc/yp.h> 46 47 #ifndef _PATH_YP 48 #define _PATH_YP "/var/yp/" 49 #endif 50 51 #ifndef _PATH_LIBEXEC 52 #define _PATH_LIBEXEC "/usr/libexec/" 53 #endif 54 55 #ifndef MAX_CHILDREN 56 #define MAX_CHILDREN 20 57 #endif 58 59 #define YP_SECURE 0x1 60 #define YP_INTERDOMAIN 0x2 61 62 /* 63 * External functions and variables. 64 */ 65 66 extern int debug; 67 extern int ypdb_debug; 68 extern int do_dns; 69 extern int children; 70 extern int resfd; 71 extern char *progname; 72 extern char *yp_dir; 73 extern pid_t yp_pid; 74 75 extern enum ypstat yp_errno; 76 extern void yp_error(const char *, ...) __printflike(1, 2); 77 #ifdef DB_CACHE 78 extern int yp_get_record(DB *, const DBT *, DBT *, int); 79 #else 80 extern int yp_get_record(const char *, const char *, const DBT *, DBT *, int); 81 #endif 82 extern int yp_first_record(const DB *, DBT *, DBT *, int); 83 extern int yp_next_record(const DB *, DBT *, DBT *, int, int); 84 extern char *yp_dnsname(char *); 85 extern char *yp_dnsaddr(const char *); 86 #ifdef DB_CACHE 87 extern int yp_access(const char *, const char *, const struct svc_req *); 88 #else 89 extern int yp_access(const char *, const struct svc_req *); 90 #endif 91 extern int yp_validdomain(const char *); 92 extern DB *yp_open_db(const char *, const char *); 93 extern DB *yp_open_db_cache(const char *, const char *, const char *, int); 94 extern void yp_flush_all(void); 95 extern void yp_init_dbs(void); 96 extern int yp_testflag(char *, char *, int); 97 extern void load_securenets(void); 98 99 #ifdef DB_CACHE 100 extern ypstat yp_select_map(char *, char *, keydat *, int); 101 extern ypstat yp_getbykey(keydat *, valdat *); 102 extern ypstat yp_firstbykey(keydat *, valdat *); 103 extern ypstat yp_nextbykey(keydat *, valdat *); 104 #endif 105 106 extern unsigned long svcudp_set_xid(SVCXPRT *, unsigned long); 107 extern unsigned long svcudp_get_xid(SVCXPRT *); 108 109 #ifndef RESOLVER_TIMEOUT 110 #define RESOLVER_TIMEOUT 3600 111 #endif 112 113 extern int yp_init_resolver(void); 114 extern void yp_run_dnsq(void); 115 extern void yp_prune_dnsq(void); 116 extern ypstat yp_async_lookup_name(struct svc_req *, char *, int); 117 extern ypstat yp_async_lookup_addr(struct svc_req *, char *, int); 118