external/bsd/libbind/dist/irs/nul_ng.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (c) 1996,1999 by Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  17  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #if defined(LIBC_SCCS) && !defined(lint)
  21 static const char rcsid[] = "Id: nul_ng.c,v 1.3 2005/04/27 04:56:34 sra Exp";
  22 #endif
  23
  24 /*! \file
  25  * \brief
  26  * nul_ng.c - the netgroup accessor null map
  27  */
  28
  29 #include "port_before.h"
  30
  31 #include <sys/types.h>
  32 #include <netinet/in.h>
  33 #include <arpa/nameser.h>
  34 #include <resolv.h>
  35
  36 #include <stdio.h>
  37 #include <string.h>
  38 #include <netdb.h>
  39 #include <ctype.h>
  40 #include <stdlib.h>
  41 #include <errno.h>
  42
  43 #include <irs.h>
  44 #include <isc/memcluster.h>
  45
  46 #include "port_after.h"
  47
  48 #include "irs_p.h"
  49 #include "hesiod.h"
  50 #include "dns_p.h"
  51
  52 /* Forward. */
  53
  54 static void             ng_close(struct irs_ng *);
  55 static int              ng_next(struct irs_ng *, const char **,
  56                                 const char **, const char **);
  57 static int              ng_test(struct irs_ng *,
  58                                 const char *, const char *,
  59                                 const char *, const char *);
  60 static void             ng_rewind(struct irs_ng *, const char *);
  61 static void             ng_minimize(struct irs_ng *);
  62
  63 /* Public. */
  64
  65 struct irs_ng *
  66 irs_nul_ng(struct irs_acc *this) {
  67         struct irs_ng *ng;
  68
  69         UNUSED(this);
  70
  71         if (!(ng = memget(sizeof *ng))) {
  72                 errno = ENOMEM;
  73                 return (NULL);
  74         }
  75         memset(ng, 0x5e, sizeof *ng);
  76         ng->private = NULL;
  77         ng->close = ng_close;
  78         ng->next = ng_next;
  79         ng->test = ng_test;
  80         ng->rewind = ng_rewind;
  81         ng->minimize = ng_minimize;
  82         return (ng);
  83 }
  84
  85 /* Methods. */
  86
  87 static void
  88 ng_close(struct irs_ng *this) {
  89         memput(this, sizeof *this);
  90 }
  91
  92 /* ARGSUSED */
  93 static int
  94 ng_next(struct irs_ng *this, const char **host, const char **user,
  95         const char **domain)
  96 {
  97         UNUSED(this);
  98         UNUSED(host);
  99         UNUSED(user);
 100         UNUSED(domain);
 101         errno = ENOENT;
 102         return (-1);
 103 }
 104
 105 static int
 106 ng_test(struct irs_ng *this, const char *name,
 107         const char *user, const char *host, const char *domain)
 108 {
 109         UNUSED(this);
 110         UNUSED(name);
 111         UNUSED(user);
 112         UNUSED(host);
 113         UNUSED(domain);
 114         errno = ENODEV;
 115         return (-1);
 116 }
 117
 118 static void
 119 ng_rewind(struct irs_ng *this, const char *netgroup) {
 120         UNUSED(this);
 121         UNUSED(netgroup);
 122         /* NOOP */
 123 }
 124
 125 static void
 126 ng_minimize(struct irs_ng *this) {
 127         UNUSED(this);
 128         /* NOOP */
 129 }