usr.bin/ypmatch/ypmatch.c

   1 /*      $NetBSD: ypmatch.c,v 1.18 2009/06/20 19:27:26 christos Exp $    */
   2
   3 /*
   4  * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@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 1.18 2009/06/20 19:27:26 christos 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;
  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 = NULL;
  67         notrans = key = null = 0;
  68         ypaliases = ypalias_init();
  69         while ((c = getopt(argc, argv, "xd:ktz")) != -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 'd':
  79                         domainname = optarg;
  80                         break;
  81
  82                 case 't':
  83                         notrans++;
  84                         break;
  85
  86                 case 'k':
  87                         key++;
  88                         break;
  89
  90                 case 'z':
  91                         null++;
  92                         break;
  93
  94                 default:
  95                         usage();
  96                 }
  97         }
  98
  99         argc -= optind;
 100         argv += optind;
 101
 102         if (argc < 2)
 103                 usage();
 104
 105         if (domainname == NULL)
 106                 yp_get_default_domain(&domainname);
 107
 108         inmap = argv[argc - 1];
 109         if (notrans == 0) {
 110                 for (i = 0; ypaliases[i].alias; i++)
 111                         if (strcmp(inmap, ypaliases[i].alias) == 0)
 112                                 inmap = ypaliases[i].name;
 113         }
 114
 115         rval = 0;
 116         for(c = 0; c < (argc - 1); c++) {
 117                 inkey = argv[c];
 118
 119                 len = strlen(inkey);
 120                 if (null)
 121                         len++;
 122                 r = yp_match(domainname, inmap, inkey, len,
 123                     &outbuf, &outbuflen);
 124                 switch (r) {
 125                 case 0:
 126                         if (key)
 127                                 printf("%s: ", inkey);
 128                         fwrite(outbuf, outbuflen, 1, stdout);
 129                         putc('\n', stdout);
 130                         break;
 131
 132                 case YPERR_YPBIND:
 133                         errx(1, "not running ypbind");
 134
 135                 default:
 136                         warnx("can't match key %s in map %s.  Reason: %s",
 137                             inkey, inmap, yperr_string(r));
 138                         rval = 1;
 139                         break;
 140                 }
 141         }
 142
 143         return rval;
 144 }
 145
 146 static void
 147 usage(void)
 148 {
 149
 150         (void)fprintf(stderr, "Usage: %s [-ktz] [-d domain] key ... "
 151             "mapname\n", getprogname());
 152         (void)fprintf(stderr, "       %s -x\n", getprogname());
 153         exit(1);
 154 }