1 /* $OpenBSD: ypcat.c,v 1.16 2015/02/08 23:40:35 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com> 5 * 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/types.h> 35 #include <sys/socket.h> 36 37 #include <ctype.h> 38 #include <err.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <unistd.h> 43 44 #include <rpc/rpc.h> 45 #include <rpc/xdr.h> 46 #include <rpcsvc/yp.h> 47 #include <rpcsvc/ypclnt.h> 48 49 static const struct ypalias { 50 char *alias, *name; 51 } ypaliases[] = { 52 { "passwd", "passwd.byname" }, 53 { "master.passwd", "master.passwd.byname" }, 54 { "shadow", "shadow.byname" }, 55 { "group", "group.byname" }, 56 { "networks", "networks.byaddr" }, 57 { "hosts", "hosts.byaddr" }, 58 { "protocols", "protocols.bynumber" }, 59 { "services", "services.byname" }, 60 { "aliases", "mail.aliases" }, 61 { "ethers", "ethers.byname" }, 62 }; 63 64 static int key; 65 66 static void 67 usage(void) 68 { 69 fprintf(stderr, "%s\n%s\n", 70 "usage: ypcat [-kt] [-d domainname] mapname", 71 " ypcat -x"); 72 exit(1); 73 } 74 75 static int 76 printit(u_long instatus, char *inkey, int inkeylen, char *inval, int invallen, 77 void *indata) 78 { 79 if (instatus != YP_TRUE) 80 return (instatus); 81 if (key) 82 printf("%*.*s ", inkeylen, inkeylen, inkey); 83 printf("%*.*s\n", invallen, invallen, inval); 84 return (0); 85 } 86 87 int 88 main(int argc, char *argv[]) 89 { 90 char *domain = NULL, *inmap; 91 struct ypall_callback ypcb; 92 int c, notrans, r; 93 u_int i; 94 95 notrans = key = 0; 96 while ((c = getopt(argc, argv, "xd:kt")) != -1) 97 switch (c) { 98 case 'x': 99 for (i = 0; i < nitems(ypaliases); i++) 100 printf("Use \"%s\" for \"%s\"\n", 101 ypaliases[i].alias, ypaliases[i].name); 102 exit(0); 103 case 'd': 104 domain = optarg; 105 break; 106 case 't': 107 notrans = 1; 108 break; 109 case 'k': 110 key = 1; 111 break; 112 default: 113 usage(); 114 } 115 116 if (optind + 1 != argc) 117 usage(); 118 119 if (domain == NULL) 120 yp_get_default_domain(&domain); 121 122 inmap = argv[optind]; 123 if (notrans == 0) { 124 for (i = 0; i < nitems(ypaliases); i++) 125 if (strcmp(inmap, ypaliases[i].alias) == 0) 126 inmap = ypaliases[i].name; 127 } 128 ypcb.foreach = printit; 129 ypcb.data = NULL; 130 131 r = yp_all(domain, inmap, &ypcb); 132 switch (r) { 133 case 0: 134 break; 135 case YPERR_YPBIND: 136 errx(1, "not running ypbind"); 137 default: 138 errx(1, "no such map %s. Reason: %s", 139 inmap, yperr_string(r)); 140 } 141 exit(0); 142 } 143