Annotation of src/usr.bin/ypwhich/ypwhich.c, Revision 1.1
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
! 34: static char rcsid[] = "$Id: ypwhich.c,v 1.5 1995/05/21 15:42:54 mycroft Exp $";
! 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>
! 46: #include <rpcsvc/yp_prot.h>
! 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,
! 101: xdr_domainname, dom, xdr_ypbind_resp, &ypbr, tv);
! 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:
! 117: ss_addr = ypbr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_addr.s_addr;
! 118: /*printf("%08x\n", ss_addr);*/
! 119: hent = gethostbyaddr((char *)&ss_addr, sizeof(ss_addr), AF_INET);
! 120: if (hent)
! 121: printf("%s\n", hent->h_name);
! 122: else
! 123: printf("%s\n", inet_ntoa(ss_addr));
! 124: return 0;
! 125: }
! 126:
! 127: int
! 128: main(argc, argv)
! 129: char **argv;
! 130: {
! 131: char *domainname, *master, *map;
! 132: struct ypmaplist *ypml, *y;
! 133: struct hostent *hent;
! 134: struct sockaddr_in sin;
! 135: int notrans, mode, getmap;
! 136: int c, r, i;
! 137:
! 138: yp_get_default_domain(&domainname);
! 139:
! 140: map = NULL;
! 141: getmap = notrans = mode = 0;
! 142: while( (c=getopt(argc, argv, "xd:mt")) != -1)
! 143: switch(c) {
! 144: case 'x':
! 145: for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
! 146: printf("Use \"%s\" for \"%s\"\n",
! 147: ypaliases[i].alias,
! 148: ypaliases[i].name);
! 149: exit(0);
! 150: case 'd':
! 151: domainname = optarg;
! 152: break;
! 153: case 't':
! 154: notrans++;
! 155: break;
! 156: case 'm':
! 157: mode++;
! 158: break;
! 159: default:
! 160: usage();
! 161: }
! 162: argc -= optind;
! 163: argv += optind;
! 164:
! 165: if(mode==0) {
! 166: switch(argc) {
! 167: case 0:
! 168: bzero(&sin, sizeof sin);
! 169: sin.sin_family = AF_INET;
! 170: sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
! 171:
! 172: if(bind_host(domainname, &sin))
! 173: exit(1);
! 174: break;
! 175: case 1:
! 176: bzero(&sin, sizeof sin);
! 177: sin.sin_family = AF_INET;
! 178: if (inet_aton(argv[0], &sin.sin_addr) == 0) {
! 179: hent = gethostbyname(argv[0]);
! 180: if(!hent) {
! 181: fprintf(stderr, "ypwhich: host %s unknown\n",
! 182: argv[0]);
! 183: exit(1);
! 184: }
! 185: bcopy((char *)hent->h_addr,
! 186: (char *)&sin.sin_addr, sizeof sin.sin_addr);
! 187: }
! 188: if(bind_host(domainname, &sin))
! 189: exit(1);
! 190: break;
! 191: default:
! 192: usage();
! 193: }
! 194: exit(0);
! 195: }
! 196:
! 197: if( argc > 1)
! 198: usage();
! 199:
! 200: if(argv[0]) {
! 201: map = argv[0];
! 202: for(i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
! 203: if( strcmp(map, ypaliases[i].alias) == 0)
! 204: map = ypaliases[i].name;
! 205: r = yp_master(domainname, map, &master);
! 206: switch(r) {
! 207: case 0:
! 208: printf("%s\n", master);
! 209: free(master);
! 210: break;
! 211: case YPERR_YPBIND:
! 212: fprintf(stderr, "ypwhich: not running ypbind\n");
! 213: exit(1);
! 214: default:
! 215: fprintf(stderr, "Can't find master for map %s. Reason: %s\n",
! 216: map, yperr_string(r));
! 217: exit(1);
! 218: }
! 219: exit(0);
! 220: }
! 221:
! 222: ypml = NULL;
! 223: r = yp_maplist(domainname, &ypml);
! 224: switch(r) {
! 225: case 0:
! 226: for(y=ypml; y; ) {
! 227: ypml = y;
! 228: r = yp_master(domainname, ypml->ypml_name, &master);
! 229: switch(r) {
! 230: case 0:
! 231: printf("%s %s\n", ypml->ypml_name, master);
! 232: free(master);
! 233: break;
! 234: default:
! 235: fprintf(stderr,
! 236: "YP: can't find the master of %s: Reason: %s\n",
! 237: ypml->ypml_name, yperr_string(r));
! 238: break;
! 239: }
! 240: y = ypml->ypml_next;
! 241: free(ypml);
! 242: }
! 243: break;
! 244: case YPERR_YPBIND:
! 245: fprintf(stderr, "ypwhich: not running ypbind\n");
! 246: exit(1);
! 247: default:
! 248: fprintf(stderr, "Can't get map list for domain %s. Reason: %s\n",
! 249: domainname, yperr_string(r));
! 250: exit(1);
! 251: }
! 252: exit(0);
! 253: }
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