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  * $DragonFly: src/usr.bin/ypcat/ypcat.c,v 1.3 2003/10/04 20:36:55 hmp Exp $
  31  */
  32
  33 #include <sys/param.h>
  34 #include <sys/types.h>
  35 #include <sys/socket.h>
  36 #include <ctype.h>
  37 #include <err.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <unistd.h>
  42
  43 #include <rpc/rpc.h>
  44 #include <rpc/xdr.h>
  45 #include <rpcsvc/yp_prot.h>
  46 #include <rpcsvc/ypclnt.h>
  47
  48 struct ypalias {
  49         const char *alias, *name;
  50 } ypaliases[] = {
  51         { "passwd", "passwd.byname" },
  52         { "master.passwd", "master.passwd.byname" },
  53         { "group", "group.byname" },
  54         { "networks", "networks.byaddr" },
  55         { "hosts", "hosts.byaddr" },
  56         { "protocols", "protocols.bynumber" },
  57         { "services", "services.byname" },
  58         { "aliases", "mail.aliases" },
  59         { "ethers", "ethers.byname" },
  60 };
  61
  62 int key;
  63
  64 static void
  65 usage(void)
  66 {
  67         fprintf(stderr, "%s\n%s\n",
  68                 "usage: ypcat [-k] [-d domainname] [-t] mapname",
  69                 "       ypcat -x");
  70         exit(1);
  71 }
  72
  73 static int
  74 printit(unsigned long instatus, char *inkey, int inkeylen, char *inval, int invallen,
  75         void *indata __unused)
  76 {
  77         if (instatus != YP_TRUE)
  78                 return (instatus);
  79         if (key)
  80                 printf("%*.*s ", inkeylen, inkeylen, inkey);
  81         printf("%*.*s\n", invallen, invallen, inval);
  82         return (0);
  83 }
  84
  85 int
  86 main(int argc, char  **argv)
  87 {
  88         char *domainname = NULL;
  89         struct ypall_callback ypcb;
  90         char *inmap;
  91         int notrans;
  92         int c, r;
  93         u_int i;
  94
  95         notrans = key = 0;
  96
  97         while ((c = getopt(argc, argv, "xd:kt")) != -1)
  98                 switch (c) {
  99                 case 'x':
 100                         for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
 101                                 printf("Use \"%s\" for \"%s\"\n",
 102                                         ypaliases[i].alias,
 103                                         ypaliases[i].name);
 104                         exit(0);
 105                 case 'd':
 106                         domainname = optarg;
 107                         break;
 108                 case 't':
 109                         notrans++;
 110                         break;
 111                 case 'k':
 112                         key++;
 113                         break;
 114                 default:
 115                         usage();
 116                 }
 117
 118         if (optind + 1 != argc)
 119                 usage();
 120
 121         if (!domainname)
 122                 yp_get_default_domain(&domainname);
 123
 124         inmap = argv[optind];
 125         for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
 126                 if (strcmp(inmap, ypaliases[i].alias) == 0)
 127                         inmap = __DECONST(char *, ypaliases[i].name);
 128         ypcb.foreach = printit;
 129         ypcb.data = NULL;
 130
 131         r = yp_all(domainname, inmap, &ypcb);
 132         switch (r) {
 133         case 0:
 134                 break;
 135         case YPERR_YPBIND:
 136                 errx(1, "not running ypbind");
 137         default:
 138                 errx(1, "no such map %s. reason: %s", inmap, yperr_string(r));
 139         }
 140         exit(0);
 141 }