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      1 /*	$NetBSD: ypmatch.c,v 1.21 2012/03/02 18:57:27 matt Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993 Theo de Raadt <deraadt (at) fsa.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     17  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #ifndef lint
     31 __RCSID("$NetBSD: ypmatch.c,v 1.21 2012/03/02 18:57:27 matt Exp $");
     32 #endif
     33 
     34 #include <sys/param.h>
     35 #include <sys/types.h>
     36 #include <sys/socket.h>
     37 #include <ctype.h>
     38 #include <err.h>
     39 #include <stdio.h>
     40 #include <stdlib.h>
     41 #include <string.h>
     42 #include <unistd.h>
     43 
     44 #include <rpc/rpc.h>
     45 #include <rpc/xdr.h>
     46 #include <rpcsvc/yp_prot.h>
     47 #include <rpcsvc/ypclnt.h>
     48 
     49 #include "ypalias_init.h"
     50 
     51 static void	usage(void) __attribute__((__noreturn__));
     52 
     53 int
     54 main(int argc, char *argv[])
     55 {
     56 	char *domainname, *b_retry_cnt;
     57 	char *inkey, *outbuf;
     58 	const char *inmap;
     59 	int outbuflen, key, null, notrans;
     60 	int c, r, len;
     61 	size_t i;
     62 	int rval;
     63 	const struct ypalias *ypaliases;
     64 
     65 	setprogname(*argv);
     66 	domainname = b_retry_cnt = NULL;
     67 	notrans = key = null = 0;
     68 	ypaliases = ypalias_init();
     69 	while ((c = getopt(argc, argv, "bd:ktxz")) != -1) {
     70 		switch (c) {
     71 		case 'x':
     72 			for(i = 0; ypaliases[i].alias; i++)
     73 				printf("Use \"%s\" for \"%s\"\n",
     74 					ypaliases[i].alias,
     75 					ypaliases[i].name);
     76 			return 0;
     77 
     78 		case 'b':
     79 			b_retry_cnt = optarg;
     80 			break;
     81 
     82 		case 'd':
     83 			domainname = optarg;
     84 			break;
     85 
     86 		case 't':
     87 			notrans++;
     88 			break;
     89 
     90 		case 'k':
     91 			key++;
     92 			break;
     93 
     94 		case 'z':
     95 			null++;
     96 			break;
     97 
     98 		default:
     99 			usage();
    100 		}
    101 	}
    102 
    103 	argc -= optind;
    104 	argv += optind;
    105 
    106 	if (argc < 2)
    107 		usage();
    108 
    109 	if (b_retry_cnt != NULL) {
    110 		char *s;
    111 		unsigned long l;
    112 
    113 		l = strtoul(b_retry_cnt, &s, 10);
    114 		if (*s != '\0' || l > 0xffff) usage();
    115 		yp_setbindtries((int)l);
    116 	}
    117 
    118 	if (domainname == NULL)
    119 		yp_get_default_domain(&domainname);
    120 
    121 	inmap = argv[argc - 1];
    122 	if (notrans == 0) {
    123 		for (i = 0; ypaliases[i].alias; i++)
    124 			if (strcmp(inmap, ypaliases[i].alias) == 0)
    125 				inmap = ypaliases[i].name;
    126 	}
    127 
    128 	rval = 0;
    129 	for(c = 0; c < (argc - 1); c++) {
    130 		inkey = argv[c];
    131 
    132 		len = strlen(inkey);
    133 		if (null)
    134 			len++;
    135 		r = yp_match(domainname, inmap, inkey, len,
    136 		    &outbuf, &outbuflen);
    137 		switch (r) {
    138 		case 0:
    139 			if (key)
    140 				printf("%s: ", inkey);
    141 			fwrite(outbuf, outbuflen, 1, stdout);
    142 			putc('\n', stdout);
    143 			break;
    144 
    145 		case YPERR_YPBIND:
    146 			errx(1, "not running ypbind");
    147 
    148 		default:
    149 			warnx("can't match key %s in map %s.  Reason: %s",
    150 			    inkey, inmap, yperr_string(r));
    151 			rval = 1;
    152 			break;
    153 		}
    154 	}
    155 
    156 	return rval;
    157 }
    158 
    159 static void
    160 usage(void)
    161 {
    162 
    163 	(void)fprintf(stderr, "Usage: %s [-ktz] [-b <num-retry>] "
    164 	    "[-d <domainname>] <key> ... <mapname>\n", getprogname());
    165 	(void)fprintf(stderr, "       %s -x\n", getprogname());
    166 	exit(1);
    167 }
    168