nis/nis_print_group_entry.c

   1 /* Copyright (c) 1997-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <alloca.h>
  20 #include <string.h>
  21 #include <libintl.h>
  22 #include <rpcsvc/nis.h>
  23 #include <shlib-compat.h>
  24
  25 void
  26 nis_print_group_entry (const_nis_name group)
  27 {
  28   if (group != NULL && group[0] != '\0')
  29     {
  30       size_t grouplen = strlen (group);
  31       char buf[grouplen + 50];
  32       char leafbuf[grouplen + 3];
  33       char domainbuf[grouplen + 3];
  34       nis_result *res;
  35       char *cp, *cp2;
  36       u_int i;
  37
  38       cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1));
  39       cp = stpcpy (cp, ".groups_dir");
  40       cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
  41       if (cp2 != NULL && cp2[0] != '\0')
  42         {
  43           *cp++ = '.';
  44           stpcpy (cp, cp2);
  45         }
  46       res = nis_lookup (buf, FOLLOW_LINKS | EXPAND_NAME);
  47
  48       if (res == NULL)
  49         return;
  50
  51       if (NIS_RES_STATUS (res) != NIS_SUCCESS
  52           || NIS_RES_NUMOBJ (res) != 1
  53           || __type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ)
  54         {
  55           nis_freeresult (res);
  56           return;
  57         }
  58
  59       char *mem_exp[NIS_RES_NUMOBJ (res)];
  60       char *mem_imp[NIS_RES_NUMOBJ (res)];
  61       char *mem_rec[NIS_RES_NUMOBJ (res)];
  62       char *nomem_exp[NIS_RES_NUMOBJ (res)];
  63       char *nomem_imp[NIS_RES_NUMOBJ (res)];
  64       char *nomem_rec[NIS_RES_NUMOBJ (res)];
  65       unsigned long mem_exp_cnt = 0, mem_imp_cnt = 0, mem_rec_cnt = 0;
  66       unsigned long nomem_exp_cnt = 0, nomem_imp_cnt = 0, nomem_rec_cnt = 0;
  67
  68       for (i = 0;
  69            i < NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len; ++i)
  70         {
  71           char *grmem =
  72             NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val[i];
  73           int neg = grmem[0] == '-';
  74
  75           switch (grmem[neg])
  76             {
  77             case '*':
  78               if (neg)
  79                 {
  80                   nomem_imp[nomem_imp_cnt] = grmem;
  81                   ++nomem_imp_cnt;
  82                 }
  83               else
  84                 {
  85                   mem_imp[mem_imp_cnt] = grmem;
  86                   ++mem_imp_cnt;
  87                 }
  88               break;
  89             case '@':
  90               if (neg)
  91                 {
  92                   nomem_rec[nomem_rec_cnt] = grmem;
  93                   ++nomem_rec_cnt;
  94                 }
  95               else
  96                 {
  97                   mem_rec[mem_rec_cnt] = grmem;
  98                   ++mem_rec_cnt;
  99                 }
 100               break;
 101             default:
 102               if (neg)
 103                 {
 104                   nomem_exp[nomem_exp_cnt] = grmem;
 105                   ++nomem_exp_cnt;
 106                 }
 107               else
 108                 {
 109                   mem_exp[mem_exp_cnt] = grmem;
 110                   ++mem_exp_cnt;
 111                 }
 112               break;
 113             }
 114         }
 115       {
 116         char buf[strlen (NIS_RES_OBJECT (res)->zo_domain) + 10];
 117         printf (_("Group entry for \"%s.%s\" group:\n"),
 118                 NIS_RES_OBJECT (res)->zo_name,
 119                 nis_domain_of_r (NIS_RES_OBJECT (res)->zo_domain,
 120                                  buf, strlen (NIS_RES_OBJECT (res)->zo_domain)
 121                                  + 10));
 122       }
 123       if (mem_exp_cnt)
 124         {
 125           fputs (_("    Explicit members:\n"), stdout);
 126           for (i = 0; i < mem_exp_cnt; ++i)
 127             printf ("\t%s\n", mem_exp[i]);
 128         }
 129       else
 130         fputs (_("    No explicit members\n"), stdout);
 131       if (mem_imp_cnt)
 132         {
 133           fputs (_("    Implicit members:\n"), stdout);
 134           for (i = 0; i < mem_imp_cnt; ++i)
 135             printf ("\t%s\n", &mem_imp[i][2]);
 136         }
 137       else
 138         fputs (_("    No implicit members\n"), stdout);
 139       if (mem_rec_cnt)
 140         {
 141           fputs (_("    Recursive members:\n"), stdout);
 142           for (i = 0; i < mem_rec_cnt; ++i)
 143             printf ("\t%s\n", &mem_rec[i][1]);
 144         }
 145       else
 146         fputs (_("    No recursive members\n"), stdout);
 147       if (nomem_exp_cnt)
 148         {
 149           fputs (_("    Explicit nonmembers:\n"), stdout);
 150           for (i = 0; i < nomem_exp_cnt; ++i)
 151             printf ("\t%s\n", &nomem_exp[i][1]);
 152         }
 153       else
 154         fputs (_("    No explicit nonmembers\n"), stdout);
 155       if (nomem_imp_cnt)
 156         {
 157           fputs (_("    Implicit nonmembers:\n"), stdout);
 158           for (i = 0; i < nomem_imp_cnt; ++i)
 159             printf ("\t%s\n", &nomem_imp[i][3]);
 160         }
 161       else
 162         fputs (_("    No implicit nonmembers\n"), stdout);
 163       if (nomem_rec_cnt)
 164         {
 165           fputs (_("    Recursive nonmembers:\n"), stdout);
 166           for (i = 0; i < nomem_rec_cnt; ++i)
 167             printf ("\t%s=n", &nomem_rec[i][2]);
 168         }
 169       else
 170         fputs (_("    No recursive nonmembers\n"), stdout);
 171
 172       nis_freeresult (res);
 173     }
 174 }
 175 libnsl_hidden_nolink_def (nis_print_group_entry, GLIBC_2_1)