1 /* $OpenBSD: ypcat.c,v 1.16 2015/02/08 23:40:35 deraadt Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 32 #include <sys/param.h> 33 #include <sys/types.h> 34 #include <sys/socket.h> 35 36 #include <ctype.h> 37 #include <err.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <unistd.h> 42 43 #include <rpc/rpc.h> 44 #include <rpc/xdr.h> 45 #include <rpcsvc/yp.h> 46 #include <rpcsvc/ypclnt.h> 47 48 static const struct ypalias { 49 char *alias, *name; 50 } ypaliases[] = { 51 { "passwd", "passwd.byname" }, 52 { "master.passwd", "master.passwd.byname" }, 53 { "shadow", "shadow.byname" }, 54 { "group", "group.byname" }, 55 { "networks", "networks.byaddr" }, 56 { "hosts", "hosts.byaddr" }, 57 { "protocols", "protocols.bynumber" }, 58 { "services", "services.byname" }, 59 { "aliases", "mail.aliases" }, 60 { "ethers", "ethers.byname" }, 61 }; 62 63 static int key; 64 65 static void 66 usage(void) 67 { 68 fprintf(stderr, "%s\n%s\n", 69 "usage: ypcat [-kt] [-d domainname] mapname", 70 " ypcat -x"); 71 exit(1); 72 } 73 74 static int 75 printit(u_long instatus, char *inkey, int inkeylen, char *inval, int invallen, 76 void *indata) 77 { 78 if (instatus != YP_TRUE) 79 return (instatus); 80 if (key) 81 printf("%*.*s ", inkeylen, inkeylen, inkey); 82 printf("%*.*s\n", invallen, invallen, inval); 83 return (0); 84 } 85 86 int 87 main(int argc, char *argv[]) 88 { 89 char *domain = NULL, *inmap; 90 struct ypall_callback ypcb; 91 int c, notrans, r; 92 u_int i; 93 94 notrans = key = 0; 95 while ((c = getopt(argc, argv, "xd:kt")) != -1) 96 switch (c) { 97 case 'x': 98 for (i = 0; i < nitems(ypaliases); i++) 99 printf("Use \"%s\" for \"%s\"\n", 100 ypaliases[i].alias, ypaliases[i].name); 101 exit(0); 102 case 'd': 103 domain = optarg; 104 break; 105 case 't': 106 notrans = 1; 107 break; 108 case 'k': 109 key = 1; 110 break; 111 default: 112 usage(); 113 } 114 115 if (optind + 1 != argc) 116 usage(); 117 118 if (domain == NULL) 119 yp_get_default_domain(&domain); 120 121 inmap = argv[optind]; 122 if (notrans == 0) { 123 for (i = 0; i < nitems(ypaliases); i++) 124 if (strcmp(inmap, ypaliases[i].alias) == 0) 125 inmap = ypaliases[i].name; 126 } 127 ypcb.foreach = printit; 128 ypcb.data = NULL; 129 130 r = yp_all(domain, inmap, &ypcb); 131 switch (r) { 132 case 0: 133 break; 134 case YPERR_YPBIND: 135 errx(1, "not running ypbind"); 136 default: 137 errx(1, "no such map %s. Reason: %s", 138 inmap, yperr_string(r)); 139 } 140 exit(0); 141 } 142