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ypmatch.c revision 1.2 
      1 /*
      2  * Copyright (c) 1992/3 Theo de Raadt <deraadt (at) 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 
     30 #ifndef LINT
     31 static char rcsid[] = "$Id: ypmatch.c,v 1.2 1993/05/16 02:49:03 deraadt Exp $";
     32 #endif
     33 
     34 #include <sys/param.h>
     35 #include <sys/types.h>
     36 #include <sys/socket.h>
     37 #include <stdio.h>
     38 #include <ctype.h>
     39 
     40 #include <rpc/rpc.h>
     41 #include <rpc/xdr.h>
     42 #include <rpcsvc/yp_prot.h>
     43 #include <rpcsvc/ypclnt.h>
     44 
     45 struct ypalias {
     46 	char *alias, *name;
     47 } ypaliases[] = {
     48 	{ "passwd", "passwd.byname" },
     49 	{ "group", "group.byname" },
     50 	{ "networks", "networks.byaddr" },
     51 	{ "hosts", "hosts.byaddr" },
     52 	{ "protocols", "protocols.bynumber" },
     53 	{ "services", "services.byname" },
     54 	{ "aliases", "mail.aliases" },
     55 	{ "ethers", "ethers.byname" },
     56 };
     57 
     58 usage()
     59 {
     60 	fprintf(stderr, "Usage:\n");
     61 	fprintf(stderr, "\typmatch [-d domain] [-t] [-k] key [key ...] mname\n");
     62 	fprintf(stderr, "\typmatch -x\n");
     63 	fprintf(stderr, "where\n");
     64 	fprintf(stderr, "\tmname may be either a mapname or a nickname for a map\n");
     65 	fprintf(stderr, "\t-t inhibits map nickname translation\n");
     66 	fprintf(stderr, "\t-k prints keys as well as values.\n");
     67 	fprintf(stderr, "\t-x dumps the map nickname translation table.\n");
     68 	exit(1);
     69 }
     70 
     71 int
     72 main(argc, argv)
     73 char **argv;
     74 {
     75 	char *domainname;
     76 	char *inkey, *inmap, *outbuf;
     77 	extern char *optarg;
     78 	extern int optind;
     79 	int outbuflen, key, notrans;
     80 	int c, r, i;
     81 
     82 	notrans = key = 0;
     83 	yp_get_default_domain(&domainname);
     84 
     85 	while( (c=getopt(argc, argv, "xd:kt")) != -1)
     86 		switch(c) {
     87 		case 'x':
     88 			for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
     89 				printf("Use \"%s\" for \"%s\"\n",
     90 					ypaliases[i].alias,
     91 					ypaliases[i].name);
     92 			exit(0);
     93 		case 'd':
     94 			domainname = optarg;
     95 			break;
     96 		case 't':
     97 			notrans++;
     98 			break;
     99 		case 'k':
    100 			key++;
    101 			break;
    102 		default:
    103 			usage();
    104 		}
    105 
    106 	if( (argc-optind) < 2 )
    107 		usage();
    108 
    109 	inmap = argv[argc-1];
    110 	for(i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
    111 		if( strcmp(inmap, ypaliases[i].alias) == 0)
    112 			inmap = ypaliases[i].name;
    113 	for(; optind < argc-1; optind++) {
    114 		inkey = argv[optind];
    115 
    116 		r = yp_match(domainname, inmap, inkey,
    117 			strlen(inkey), &outbuf, &outbuflen);
    118 		switch(r) {
    119 		case 0:
    120 			if(key)
    121 				printf("%s ", inkey);
    122 			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
    123 			break;
    124 		case YPERR_YPBIND:
    125 			fprintf(stderr, "yp_match: not running ypbind\n");
    126 			exit(1);
    127 		default:
    128 			fprintf(stderr, "Can't match key %s in map %s. Reason: %s\n",
    129 				inkey, inmap, yperr_string(r));
    130 			break;
    131 		}
    132 	}
    133 	exit(0);
    134 }
    135