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1.1 deraadt 1: /*
2: * Copyright (c) 1992, 1993 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. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by Theo de Raadt.
16: * 4. The name of the author may not be used to endorse or promote
17: * products derived from this software without specific prior written
18: * permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
21: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
24: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #ifndef LINT
1.2 ! deraadt 34: static char rcsid[] = "$Id: ypwhich.c,v 1.1.1.1 1995/10/18 08:47:08 deraadt Exp $";
1.1 deraadt 35: #endif
36:
37: #include <sys/param.h>
38: #include <sys/types.h>
39: #include <sys/socket.h>
40: #include <stdio.h>
41: #include <stdlib.h>
42: #include <ctype.h>
43: #include <netdb.h>
44: #include <rpc/rpc.h>
45: #include <rpc/xdr.h>
1.2 ! deraadt 46: #include <rpcsvc/yp.h>
1.1 deraadt 47: #include <rpcsvc/ypclnt.h>
48:
49: extern bool_t xdr_domainname();
50:
51: struct ypalias {
52: char *alias, *name;
53: } ypaliases[] = {
54: { "passwd", "passwd.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: usage()
65: {
66: fprintf(stderr, "Usage:\n");
67: fprintf(stderr, "\typwhich [-d domain] [[-t] -m [mname] | host]\n");
68: fprintf(stderr, "\typwhich -x\n");
69: exit(1);
70: }
71:
72:
73: /*
74: * Like yp_bind except can query a specific host
75: */
76: bind_host(dom, sin)
77: char *dom;
78: struct sockaddr_in *sin;
79: {
80: struct hostent *hent = NULL;
81: struct ypbind_resp ypbr;
82: struct dom_binding *ysd;
83: struct timeval tv;
84: CLIENT *client;
85: int sock, r;
86: u_long ss_addr;
87:
88: sock = RPC_ANYSOCK;
89: tv.tv_sec = 15;
90: tv.tv_usec = 0;
91: client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
92: if(client==NULL) {
93: fprintf(stderr, "can't clntudp_create: %s\n",
94: yperr_string(YPERR_YPBIND));
95: return YPERR_YPBIND;
96: }
97:
98: tv.tv_sec = 5;
99: tv.tv_usec = 0;
100: r = clnt_call(client, YPBINDPROC_DOMAIN,
1.2 ! deraadt 101: xdr_domainname, &dom, xdr_ypbind_resp, &ypbr, tv);
1.1 deraadt 102: if( r != RPC_SUCCESS) {
103: fprintf(stderr, "can't clnt_call: %s\n",
104: yperr_string(YPERR_YPBIND));
105: clnt_destroy(client);
106: return YPERR_YPBIND;
107: } else {
108: if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
109: fprintf(stderr, "can't yp_bind: Reason: %s\n",
110: yperr_string(ypbr.ypbind_status));
111: clnt_destroy(client);
112: return r;
113: }
114: }
115: clnt_destroy(client);
116:
1.2 ! deraadt 117: bcopy(&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
! 118: &ss_addr, sizeof (ss_addr));
1.1 deraadt 119: /*printf("%08x\n", ss_addr);*/
120: hent = gethostbyaddr((char *)&ss_addr, sizeof(ss_addr), AF_INET);
121: if (hent)
122: printf("%s\n", hent->h_name);
123: else
124: printf("%s\n", inet_ntoa(ss_addr));
125: return 0;
126: }
127:
128: int
129: main(argc, argv)
130: char **argv;
131: {
1.2 ! deraadt 132: char *domain, *master, *map;
1.1 deraadt 133: struct ypmaplist *ypml, *y;
134: struct hostent *hent;
135: struct sockaddr_in sin;
136: int notrans, mode, getmap;
137: int c, r, i;
138:
1.2 ! deraadt 139: yp_get_default_domain(&domain);
1.1 deraadt 140:
141: map = NULL;
142: getmap = notrans = mode = 0;
143: while( (c=getopt(argc, argv, "xd:mt")) != -1)
144: switch(c) {
145: case 'x':
146: for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
147: printf("Use \"%s\" for \"%s\"\n",
148: ypaliases[i].alias,
149: ypaliases[i].name);
150: exit(0);
151: case 'd':
1.2 ! deraadt 152: domain = optarg;
1.1 deraadt 153: break;
154: case 't':
155: notrans++;
156: break;
157: case 'm':
158: mode++;
159: break;
160: default:
161: usage();
162: }
163: argc -= optind;
164: argv += optind;
165:
166: if(mode==0) {
167: switch(argc) {
168: case 0:
169: bzero(&sin, sizeof sin);
170: sin.sin_family = AF_INET;
171: sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
172:
1.2 ! deraadt 173: if(bind_host(domain, &sin))
1.1 deraadt 174: exit(1);
175: break;
176: case 1:
177: bzero(&sin, sizeof sin);
178: sin.sin_family = AF_INET;
179: if (inet_aton(argv[0], &sin.sin_addr) == 0) {
180: hent = gethostbyname(argv[0]);
181: if(!hent) {
182: fprintf(stderr, "ypwhich: host %s unknown\n",
183: argv[0]);
184: exit(1);
185: }
186: bcopy((char *)hent->h_addr,
187: (char *)&sin.sin_addr, sizeof sin.sin_addr);
188: }
1.2 ! deraadt 189: if(bind_host(domain, &sin))
1.1 deraadt 190: exit(1);
191: break;
192: default:
193: usage();
194: }
195: exit(0);
196: }
197:
198: if( argc > 1)
199: usage();
200:
201: if(argv[0]) {
202: map = argv[0];
203: for(i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
204: if( strcmp(map, ypaliases[i].alias) == 0)
205: map = ypaliases[i].name;
1.2 ! deraadt 206: r = yp_master(domain, map, &master);
1.1 deraadt 207: switch(r) {
208: case 0:
209: printf("%s\n", master);
210: free(master);
211: break;
212: case YPERR_YPBIND:
213: fprintf(stderr, "ypwhich: not running ypbind\n");
214: exit(1);
215: default:
216: fprintf(stderr, "Can't find master for map %s. Reason: %s\n",
217: map, yperr_string(r));
218: exit(1);
219: }
220: exit(0);
221: }
222:
223: ypml = NULL;
1.2 ! deraadt 224: r = yp_maplist(domain, &ypml);
! 225: r = 0;
1.1 deraadt 226: switch(r) {
227: case 0:
1.2 ! deraadt 228: for(y = ypml; y; ) {
1.1 deraadt 229: ypml = y;
1.2 ! deraadt 230: r = yp_master(domain, ypml->map, &master);
1.1 deraadt 231: switch(r) {
232: case 0:
1.2 ! deraadt 233: printf("%s %s\n", ypml->map, master);
1.1 deraadt 234: free(master);
235: break;
236: default:
237: fprintf(stderr,
238: "YP: can't find the master of %s: Reason: %s\n",
1.2 ! deraadt 239: ypml->map, yperr_string(r));
1.1 deraadt 240: break;
241: }
1.2 ! deraadt 242: y = ypml->next;
1.1 deraadt 243: free(ypml);
244: }
245: break;
246: case YPERR_YPBIND:
247: fprintf(stderr, "ypwhich: not running ypbind\n");
248: exit(1);
249: default:
250: fprintf(stderr, "Can't get map list for domain %s. Reason: %s\n",
1.2 ! deraadt 251: domain, yperr_string(r));
1.1 deraadt 252: exit(1);
253: }
254: exit(0);
255: }