Annotation of src/usr.bin/ypwhich/ypwhich.c, Revision 1.14
1.14 ! deraadt 1: /* $OpenBSD: ypwhich.c,v 1.13 2002/07/19 03:20:17 deraadt Exp $ */
1.3 deraadt 2: /* $NetBSD: ypwhich.c,v 1.6 1996/05/13 02:43:48 thorpej Exp $ */
3:
1.1 deraadt 4: /*
1.3 deraadt 5: * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com>
1.1 deraadt 6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by Theo de Raadt.
19: * 4. The name of the author may not be used to endorse or promote
20: * products derived from this software without specific prior written
21: * permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
24: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
27: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
36: #ifndef LINT
1.14 ! deraadt 37: static char rcsid[] = "$Id: ypwhich.c,v 1.13 2002/07/19 03:20:17 deraadt Exp $";
1.1 deraadt 38: #endif
39:
40: #include <sys/param.h>
41: #include <sys/types.h>
42: #include <sys/socket.h>
1.8 deraadt 43:
44: #include <sys/socket.h>
45: #include <netinet/in.h>
46: #include <arpa/inet.h>
47:
1.1 deraadt 48: #include <stdio.h>
1.8 deraadt 49: #include <string.h>
1.1 deraadt 50: #include <stdlib.h>
51: #include <ctype.h>
52: #include <netdb.h>
1.8 deraadt 53: #include <err.h>
54:
1.1 deraadt 55: #include <rpc/rpc.h>
56: #include <rpc/xdr.h>
1.2 deraadt 57: #include <rpcsvc/yp.h>
1.1 deraadt 58: #include <rpcsvc/ypclnt.h>
59:
1.11 maja 60: #include "yplib_host.h"
61:
1.1 deraadt 62: struct ypalias {
63: char *alias, *name;
64: } ypaliases[] = {
65: { "passwd", "passwd.byname" },
66: { "group", "group.byname" },
67: { "networks", "networks.byaddr" },
68: { "hosts", "hosts.byaddr" },
69: { "protocols", "protocols.bynumber" },
70: { "services", "services.byname" },
71: { "aliases", "mail.aliases" },
72: { "ethers", "ethers.byname" },
73: };
74:
1.8 deraadt 75: void
1.13 deraadt 76: usage(void)
1.1 deraadt 77: {
1.13 deraadt 78: fprintf(stderr,
79: "usage: ypwhich [-d domain] [[-h host] [-t] -m [mname] | host]\n");
80: fprintf(stderr, " ypwhich -x\n");
1.1 deraadt 81: exit(1);
82: }
83:
84:
85: /*
86: * Like yp_bind except can query a specific host
87: */
1.8 deraadt 88: int
1.13 deraadt 89: bind_host(char *dom, struct sockaddr_in *sin)
1.1 deraadt 90: {
91: struct hostent *hent = NULL;
92: struct ypbind_resp ypbr;
1.13 deraadt 93: struct in_addr ss_addr;
1.1 deraadt 94: struct timeval tv;
95: CLIENT *client;
96: int sock, r;
97:
98: sock = RPC_ANYSOCK;
99: tv.tv_sec = 15;
100: tv.tv_usec = 0;
101: client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
1.6 gene 102:
103: if (client == NULL) {
104: fprintf(stderr, "ypwhich: host is not bound to a ypmaster\n");
1.1 deraadt 105: return YPERR_YPBIND;
106: }
107:
108: tv.tv_sec = 5;
109: tv.tv_usec = 0;
1.6 gene 110:
1.1 deraadt 111: r = clnt_call(client, YPBINDPROC_DOMAIN,
1.5 deraadt 112: xdr_domainname, &dom, xdr_ypbind_resp, &ypbr, tv);
113: if (r != RPC_SUCCESS) {
1.1 deraadt 114: fprintf(stderr, "can't clnt_call: %s\n",
1.5 deraadt 115: yperr_string(YPERR_YPBIND));
1.1 deraadt 116: clnt_destroy(client);
117: return YPERR_YPBIND;
118: } else {
119: if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
120: fprintf(stderr, "can't yp_bind: Reason: %s\n",
1.5 deraadt 121: yperr_string(ypbr.ypbind_status));
1.1 deraadt 122: clnt_destroy(client);
123: return r;
124: }
125: }
126: clnt_destroy(client);
127:
1.8 deraadt 128: memmove(&ss_addr.s_addr, &ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
129: sizeof (ss_addr));
1.6 gene 130:
1.8 deraadt 131: hent = gethostbyaddr((char *)&ss_addr.s_addr, sizeof(ss_addr.s_addr),
132: AF_INET);
1.6 gene 133: if (hent != NULL)
1.1 deraadt 134: printf("%s\n", hent->h_name);
135: else
136: printf("%s\n", inet_ntoa(ss_addr));
1.6 gene 137:
1.1 deraadt 138: return 0;
139: }
1.13 deraadt 140:
1.1 deraadt 141: int
1.13 deraadt 142: main(int argc, char *argv[])
1.1 deraadt 143: {
1.13 deraadt 144: char *domain, *master, *map = NULL, *host = NULL;
145: int notrans, mode, getmap, c, r, i;
1.1 deraadt 146: struct ypmaplist *ypml, *y;
1.13 deraadt 147: struct sockaddr_in sin;
1.1 deraadt 148: struct hostent *hent;
1.13 deraadt 149: CLIENT *client = NULL;
1.1 deraadt 150:
151: getmap = notrans = mode = 0;
1.6 gene 152:
153: yp_get_default_domain(&domain);
1.8 deraadt 154: if (domain == NULL)
155: errx(1, "YP domain name not set");
156:
1.11 maja 157: while ((c = getopt(argc, argv, "xd:h:mt")) != -1)
1.12 deraadt 158: switch (c) {
1.1 deraadt 159: case 'x':
1.5 deraadt 160: for (i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
1.1 deraadt 161: printf("Use \"%s\" for \"%s\"\n",
1.5 deraadt 162: ypaliases[i].alias, ypaliases[i].name);
1.1 deraadt 163: exit(0);
1.11 maja 164: case 'h':
165: host = optarg;
166: break;
1.1 deraadt 167: case 'd':
1.2 deraadt 168: domain = optarg;
1.1 deraadt 169: break;
170: case 't':
171: notrans++;
172: break;
173: case 'm':
174: mode++;
175: break;
176: default:
177: usage();
178: }
179: argc -= optind;
180: argv += optind;
181:
1.6 gene 182: if (mode == 0) {
1.12 deraadt 183: switch (argc) {
1.1 deraadt 184: case 0:
1.8 deraadt 185: memset(&sin, 0, sizeof sin);
1.1 deraadt 186: sin.sin_family = AF_INET;
187: sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
188:
1.5 deraadt 189: if (bind_host(domain, &sin))
1.1 deraadt 190: exit(1);
191: break;
192: case 1:
193: bzero(&sin, sizeof sin);
194: sin.sin_family = AF_INET;
195: if (inet_aton(argv[0], &sin.sin_addr) == 0) {
196: hent = gethostbyname(argv[0]);
1.5 deraadt 197: if (!hent) {
1.1 deraadt 198: fprintf(stderr, "ypwhich: host %s unknown\n",
199: argv[0]);
200: exit(1);
201: }
202: bcopy((char *)hent->h_addr,
1.5 deraadt 203: (char *)&sin.sin_addr, sizeof sin.sin_addr);
1.1 deraadt 204: }
1.5 deraadt 205: if (bind_host(domain, &sin))
1.1 deraadt 206: exit(1);
207: break;
208: default:
209: usage();
210: }
211: exit(0);
212: }
213:
1.5 deraadt 214: if (argc > 1)
1.1 deraadt 215: usage();
216:
1.13 deraadt 217: if (host != NULL)
1.14 ! deraadt 218: client = yp_bind_host(host, YPPROG, YPVERS, 0, 1);
1.13 deraadt 219:
1.5 deraadt 220: if (argv[0]) {
1.1 deraadt 221: map = argv[0];
1.5 deraadt 222: for (i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
223: if (strcmp(map, ypaliases[i].alias) == 0)
1.1 deraadt 224: map = ypaliases[i].name;
1.6 gene 225:
1.13 deraadt 226: if (host != NULL)
1.11 maja 227: r = yp_master_host(client, domain, map, &master);
1.13 deraadt 228: else
1.11 maja 229: r = yp_master(domain, map, &master);
1.13 deraadt 230:
1.5 deraadt 231: switch (r) {
1.1 deraadt 232: case 0:
233: printf("%s\n", master);
234: free(master);
235: break;
236: case YPERR_YPBIND:
237: fprintf(stderr, "ypwhich: not running ypbind\n");
238: exit(1);
239: default:
240: fprintf(stderr, "Can't find master for map %s. Reason: %s\n",
1.5 deraadt 241: map, yperr_string(r));
1.1 deraadt 242: exit(1);
243: }
244: exit(0);
245: }
246:
247: ypml = NULL;
1.13 deraadt 248: if (host != NULL)
1.11 maja 249: r = yp_maplist_host(client, domain, &ypml);
1.13 deraadt 250: else
1.11 maja 251: r = yp_maplist(domain, &ypml);
1.13 deraadt 252:
1.2 deraadt 253: r = 0;
1.12 deraadt 254: switch (r) {
1.1 deraadt 255: case 0:
1.5 deraadt 256: for (y = ypml; y; ) {
1.1 deraadt 257: ypml = y;
1.11 maja 258: if (host != NULL) {
259: r = yp_master_host(client,
260: domain, ypml->map, &master);
261: } else {
262: r = yp_master(domain, ypml->map, &master);
263: }
1.12 deraadt 264: switch (r) {
1.1 deraadt 265: case 0:
1.2 deraadt 266: printf("%s %s\n", ypml->map, master);
1.1 deraadt 267: free(master);
268: break;
269: default:
270: fprintf(stderr,
1.5 deraadt 271: "YP: can't find the master of %s: Reason: %s\n",
272: ypml->map, yperr_string(r));
1.1 deraadt 273: break;
274: }
1.2 deraadt 275: y = ypml->next;
1.1 deraadt 276: free(ypml);
277: }
278: break;
279: case YPERR_YPBIND:
280: fprintf(stderr, "ypwhich: not running ypbind\n");
281: exit(1);
282: default:
283: fprintf(stderr, "Can't get map list for domain %s. Reason: %s\n",
1.5 deraadt 284: domain, yperr_string(r));
1.1 deraadt 285: exit(1);
286: }
287: exit(0);
288: }
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