usr.bin/ypcat/ypcat.c

   1 /*
   2  * Copyright (c) 1992/3 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. 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  * $FreeBSD: src/usr.bin/ypcat/ypcat.c,v 1.4.2.2 2002/02/15 00:46:56 des Exp $
  30  */
  31
  32 #include <sys/param.h>
  33 #include <sys/types.h>
  34 #include <sys/socket.h>
  35 #include <ctype.h>
  36 #include <err.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 #include <rpc/rpc.h>
  43 #include <rpc/xdr.h>
  44 #include <rpcsvc/yp_prot.h>
  45 #include <rpcsvc/ypclnt.h>
  46
  47 static const struct ypalias {
  48         const char *alias, *name;
  49 } ypaliases[] = {
  50         { "passwd", "passwd.byname" },
  51         { "master.passwd", "master.passwd.byname" },
  52         { "group", "group.byname" },
  53         { "networks", "networks.byaddr" },
  54         { "hosts", "hosts.byaddr" },
  55         { "protocols", "protocols.bynumber" },
  56         { "services", "services.byname" },
  57         { "aliases", "mail.aliases" },
  58         { "ethers", "ethers.byname" },
  59 };
  60
  61 static int key;
  62
  63 static void
  64 usage(void)
  65 {
  66         fprintf(stderr, "%s\n%s\n",
  67                 "usage: ypcat [-k] [-d domainname] [-t] mapname",
  68                 "       ypcat -x");
  69         exit(1);
  70 }
  71
  72 static int
  73 printit(unsigned long instatus, char *inkey, int inkeylen, char *inval, int invallen,
  74         void *indata __unused)
  75 {
  76         if (instatus != YP_TRUE)
  77                 return (instatus);
  78         if (key)
  79                 printf("%*.*s ", inkeylen, inkeylen, inkey);
  80         printf("%*.*s\n", invallen, invallen, inval);
  81         return (0);
  82 }
  83
  84 int
  85 main(int argc, char  *argv[])
  86 {
  87         char *domainname = NULL;
  88         struct ypall_callback ypcb;
  89         char *inmap;
  90         int notrans;
  91         int c, r;
  92         u_int i;
  93
  94         notrans = key = 0;
  95
  96         while ((c = getopt(argc, argv, "xd:kt")) != -1)
  97                 switch (c) {
  98                 case 'x':
  99                         for (i = 0; i < NELEM(ypaliases); i++)
 100                                 printf("Use \"%s\" for \"%s\"\n",
 101                                         ypaliases[i].alias,
 102                                         ypaliases[i].name);
 103                         exit(0);
 104                 case 'd':
 105                         domainname = optarg;
 106                         break;
 107                 case 't':
 108                         notrans++;
 109                         break;
 110                 case 'k':
 111                         key++;
 112                         break;
 113                 default:
 114                         usage();
 115                 }
 116
 117         if (optind + 1 != argc)
 118                 usage();
 119
 120         if (!domainname)
 121                 yp_get_default_domain(&domainname);
 122
 123         inmap = argv[optind];
 124         for (i = 0; (!notrans) && i < NELEM(ypaliases); i++)
 125                 if (strcmp(inmap, ypaliases[i].alias) == 0)
 126                         inmap = __DECONST(char *, ypaliases[i].name);
 127         ypcb.foreach = printit;
 128         ypcb.data = NULL;
 129
 130         r = yp_all(domainname, inmap, &ypcb);
 131         switch (r) {
 132         case 0:
 133                 break;
 134         case YPERR_YPBIND:
 135                 errx(1, "not running ypbind");
 136         default:
 137                 errx(1, "no such map %s. reason: %s", inmap, yperr_string(r));
 138         }
 139         exit(0);
 140 }