| 1 | /* |
| 2 | * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca> |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote |
| 14 | * products derived from this software without specific prior written |
| 15 | * permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| 18 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * $FreeBSD: src/usr.bin/ypwhich/ypwhich.c,v 1.11.2.1 2002/02/15 00:46:56 des Exp $ |
| 30 | * $DragonFly: src/usr.bin/ypwhich/ypwhich.c,v 1.2 2003/06/17 04:29:34 dillon Exp $ |
| 31 | */ |
| 32 | |
| 33 | #include <sys/param.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <netinet/in.h> |
| 37 | #include <arpa/inet.h> |
| 38 | #include <ctype.h> |
| 39 | #include <err.h> |
| 40 | #include <netdb.h> |
| 41 | #include <stdio.h> |
| 42 | #include <stdlib.h> |
| 43 | #include <string.h> |
| 44 | #include <unistd.h> |
| 45 | #include <rpc/rpc.h> |
| 46 | #include <rpc/xdr.h> |
| 47 | #include <rpcsvc/yp.h> |
| 48 | struct dom_binding{}; |
| 49 | #include <rpcsvc/ypclnt.h> |
| 50 | |
| 51 | #define ERR_USAGE 1 /* bad arguments - display 'usage' message */ |
| 52 | #define ERR_NOSUCHHOST 2 /* no such host */ |
| 53 | #define ERR_NOBINDING 3 /* error from ypbind -- domain not bound */ |
| 54 | #define ERR_NOYPBIND 4 /* ypbind not running */ |
| 55 | #define ERR_NOMASTER 5 /* could not find master server */ |
| 56 | |
| 57 | extern bool_t xdr_domainname(); |
| 58 | |
| 59 | struct ypalias { |
| 60 | char *alias, *name; |
| 61 | } ypaliases[] = { |
| 62 | { "passwd", "passwd.byname" }, |
| 63 | { "master.passwd", "master.passwd.byname" }, |
| 64 | { "group", "group.byname" }, |
| 65 | { "networks", "networks.byaddr" }, |
| 66 | { "hosts", "hosts.byaddr" }, |
| 67 | { "protocols", "protocols.bynumber" }, |
| 68 | { "services", "services.byname" }, |
| 69 | { "aliases", "mail.aliases" }, |
| 70 | { "ethers", "ethers.byname" }, |
| 71 | }; |
| 72 | |
| 73 | static void |
| 74 | usage() |
| 75 | { |
| 76 | fprintf(stderr, "%s\n%s\n", |
| 77 | "usage: ypwhich [-d domain] [[-t] -m [mname] | host]", |
| 78 | " ypwhich -x"); |
| 79 | exit(ERR_USAGE); |
| 80 | } |
| 81 | |
| 82 | |
| 83 | /* |
| 84 | * Like yp_bind except can query a specific host |
| 85 | */ |
| 86 | int |
| 87 | bind_host(dom, sin) |
| 88 | char *dom; |
| 89 | struct sockaddr_in *sin; |
| 90 | { |
| 91 | struct hostent *hent = NULL; |
| 92 | struct ypbind_resp ypbr; |
| 93 | struct timeval tv; |
| 94 | CLIENT *client; |
| 95 | int sock, r; |
| 96 | struct in_addr ss_addr; |
| 97 | |
| 98 | sock = RPC_ANYSOCK; |
| 99 | tv.tv_sec = 15; |
| 100 | tv.tv_usec = 0; |
| 101 | client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock); |
| 102 | if (client == NULL) { |
| 103 | warnx("can't clntudp_create: %s", yperr_string(YPERR_YPBIND)); |
| 104 | return (YPERR_YPBIND); |
| 105 | } |
| 106 | |
| 107 | tv.tv_sec = 5; |
| 108 | tv.tv_usec = 0; |
| 109 | r = clnt_call(client, YPBINDPROC_DOMAIN, |
| 110 | xdr_domainname, &dom, xdr_ypbind_resp, &ypbr, tv); |
| 111 | if (r != RPC_SUCCESS) { |
| 112 | warnx("can't clnt_call: %s", yperr_string(YPERR_YPBIND)); |
| 113 | clnt_destroy(client); |
| 114 | return (YPERR_YPBIND); |
| 115 | } else { |
| 116 | if (ypbr.ypbind_status != YPBIND_SUCC_VAL) { |
| 117 | warnx("can't yp_bind: reason: %s", |
| 118 | ypbinderr_string(ypbr.ypbind_resp_u.ypbind_error)); |
| 119 | clnt_destroy(client); |
| 120 | return (r); |
| 121 | } |
| 122 | } |
| 123 | clnt_destroy(client); |
| 124 | |
| 125 | ss_addr = *(struct in_addr *)ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr; |
| 126 | /*printf("%08x\n", ss_addr);*/ |
| 127 | hent = gethostbyaddr((char *)&ss_addr, sizeof(ss_addr), AF_INET); |
| 128 | if (hent) |
| 129 | printf("%s\n", hent->h_name); |
| 130 | else |
| 131 | printf("%s\n", inet_ntoa(ss_addr)); |
| 132 | return (0); |
| 133 | } |
| 134 | |
| 135 | int |
| 136 | main(argc, argv) |
| 137 | char **argv; |
| 138 | { |
| 139 | char *domainname = NULL, *master, *map = NULL; |
| 140 | struct ypmaplist *ypml, *y; |
| 141 | struct hostent *hent; |
| 142 | struct sockaddr_in sin; |
| 143 | int notrans, mode, getmap; |
| 144 | int c, r, i; |
| 145 | |
| 146 | getmap = notrans = mode = 0; |
| 147 | while ((c = getopt(argc, argv, "xd:mt")) != -1) |
| 148 | switch (c) { |
| 149 | case 'x': |
| 150 | for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++) |
| 151 | printf("\"%s\" is an alias for \"%s\"\n", |
| 152 | ypaliases[i].alias, |
| 153 | ypaliases[i].name); |
| 154 | exit(0); |
| 155 | case 'd': |
| 156 | domainname = optarg; |
| 157 | break; |
| 158 | case 't': |
| 159 | notrans++; |
| 160 | break; |
| 161 | case 'm': |
| 162 | mode++; |
| 163 | break; |
| 164 | default: |
| 165 | usage(); |
| 166 | } |
| 167 | |
| 168 | if (!domainname) |
| 169 | yp_get_default_domain(&domainname); |
| 170 | |
| 171 | if (mode == 0) { |
| 172 | switch (argc-optind) { |
| 173 | case 0: |
| 174 | bzero(&sin, sizeof sin); |
| 175 | sin.sin_family = AF_INET; |
| 176 | sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| 177 | |
| 178 | if (bind_host(domainname, &sin)) |
| 179 | exit(ERR_NOBINDING); |
| 180 | break; |
| 181 | case 1: |
| 182 | bzero(&sin, sizeof sin); |
| 183 | sin.sin_family = AF_INET; |
| 184 | if ((sin.sin_addr.s_addr = inet_addr(argv[optind])) == -1) { |
| 185 | hent = gethostbyname(argv[optind]); |
| 186 | if (!hent) |
| 187 | errx(ERR_NOSUCHHOST, "host %s unknown", argv[optind]); |
| 188 | bcopy((char *)hent->h_addr_list[0], |
| 189 | (char *)&sin.sin_addr, sizeof sin.sin_addr); |
| 190 | } |
| 191 | if (bind_host(domainname, &sin)) |
| 192 | exit(ERR_NOBINDING); |
| 193 | break; |
| 194 | default: |
| 195 | usage(); |
| 196 | } |
| 197 | exit(0); |
| 198 | } |
| 199 | |
| 200 | if (argc-optind > 1) |
| 201 | usage(); |
| 202 | |
| 203 | if (argv[optind]) { |
| 204 | map = argv[optind]; |
| 205 | for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++) |
| 206 | if (strcmp(map, ypaliases[i].alias) == 0) |
| 207 | map = ypaliases[i].name; |
| 208 | r = yp_master(domainname, map, &master); |
| 209 | switch (r) { |
| 210 | case 0: |
| 211 | printf("%s\n", master); |
| 212 | free(master); |
| 213 | break; |
| 214 | case YPERR_YPBIND: |
| 215 | errx(ERR_NOYPBIND, "not running ypbind"); |
| 216 | default: |
| 217 | errx(ERR_NOMASTER, "can't find master for map %s. reason: %s", |
| 218 | map, yperr_string(r)); |
| 219 | } |
| 220 | exit(0); |
| 221 | } |
| 222 | |
| 223 | ypml = NULL; |
| 224 | r = yp_maplist(domainname, &ypml); |
| 225 | switch (r) { |
| 226 | case 0: |
| 227 | for (y = ypml; y;) { |
| 228 | ypml = y; |
| 229 | r = yp_master(domainname, ypml->map, &master); |
| 230 | switch (r) { |
| 231 | case 0: |
| 232 | printf("%s %s\n", ypml->map, master); |
| 233 | free(master); |
| 234 | break; |
| 235 | default: |
| 236 | warnx("can't find the master of %s: reason: %s", |
| 237 | ypml->map, yperr_string(r)); |
| 238 | break; |
| 239 | } |
| 240 | y = ypml->next; |
| 241 | free(ypml); |
| 242 | } |
| 243 | break; |
| 244 | case YPERR_YPBIND: |
| 245 | errx(ERR_NOYPBIND, "not running ypbind"); |
| 246 | default: |
| 247 | errx(ERR_NOMASTER, "can't get map list for domain %s. reason: %s", |
| 248 | domainname, yperr_string(r)); |
| 249 | } |
| 250 | exit(0); |
| 251 | } |