nis/nis_print_group_entry.c

   1 /* Copyright (c) 1997-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <alloca.h>
  19 #include <string.h>
  20 #include <libintl.h>
  21 #include <rpcsvc/nis.h>
  22 #include <shlib-compat.h>
  23
  24 void
  25 nis_print_group_entry (const_nis_name group)
  26 {
  27   if (group != NULL && group[0] != '\0')
  28     {
  29       size_t grouplen = strlen (group);
  30       char buf[grouplen + 50];
  31       char leafbuf[grouplen + 3];
  32       char domainbuf[grouplen + 3];
  33       nis_result *res;
  34       char *cp, *cp2;
  35       u_int i;
  36
  37       cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1));
  38       cp = stpcpy (cp, ".groups_dir");
  39       cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
  40       if (cp2 != NULL && cp2[0] != '\0')
  41         {
  42           *cp++ = '.';
  43           stpcpy (cp, cp2);
  44         }
  45       res = nis_lookup (buf, FOLLOW_LINKS | EXPAND_NAME);
  46
  47       if (res == NULL)
  48         return;
  49
  50       if (NIS_RES_STATUS (res) != NIS_SUCCESS
  51           || NIS_RES_NUMOBJ (res) != 1
  52           || __type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ)
  53         {
  54           nis_freeresult (res);
  55           return;
  56         }
  57
  58       char *mem_exp[NIS_RES_NUMOBJ (res)];
  59       char *mem_imp[NIS_RES_NUMOBJ (res)];
  60       char *mem_rec[NIS_RES_NUMOBJ (res)];
  61       char *nomem_exp[NIS_RES_NUMOBJ (res)];
  62       char *nomem_imp[NIS_RES_NUMOBJ (res)];
  63       char *nomem_rec[NIS_RES_NUMOBJ (res)];
  64       unsigned long mem_exp_cnt = 0, mem_imp_cnt = 0, mem_rec_cnt = 0;
  65       unsigned long nomem_exp_cnt = 0, nomem_imp_cnt = 0, nomem_rec_cnt = 0;
  66
  67       for (i = 0;
  68            i < NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len; ++i)
  69         {
  70           char *grmem =
  71             NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val[i];
  72           int neg = grmem[0] == '-';
  73
  74           switch (grmem[neg])
  75             {
  76             case '*':
  77               if (neg)
  78                 {
  79                   nomem_imp[nomem_imp_cnt] = grmem;
  80                   ++nomem_imp_cnt;
  81                 }
  82               else
  83                 {
  84                   mem_imp[mem_imp_cnt] = grmem;
  85                   ++mem_imp_cnt;
  86                 }
  87               break;
  88             case '@':
  89               if (neg)
  90                 {
  91                   nomem_rec[nomem_rec_cnt] = grmem;
  92                   ++nomem_rec_cnt;
  93                 }
  94               else
  95                 {
  96                   mem_rec[mem_rec_cnt] = grmem;
  97                   ++mem_rec_cnt;
  98                 }
  99               break;
 100             default:
 101               if (neg)
 102                 {
 103                   nomem_exp[nomem_exp_cnt] = grmem;
 104                   ++nomem_exp_cnt;
 105                 }
 106               else
 107                 {
 108                   mem_exp[mem_exp_cnt] = grmem;
 109                   ++mem_exp_cnt;
 110                 }
 111               break;
 112             }
 113         }
 114       {
 115         char buf[strlen (NIS_RES_OBJECT (res)->zo_domain) + 10];
 116         printf (_("Group entry for \"%s.%s\" group:\n"),
 117                 NIS_RES_OBJECT (res)->zo_name,
 118                 nis_domain_of_r (NIS_RES_OBJECT (res)->zo_domain,
 119                                  buf, strlen (NIS_RES_OBJECT (res)->zo_domain)
 120                                  + 10));
 121       }
 122       if (mem_exp_cnt)
 123         {
 124           fputs (_("    Explicit members:\n"), stdout);
 125           for (i = 0; i < mem_exp_cnt; ++i)
 126             printf ("\t%s\n", mem_exp[i]);
 127         }
 128       else
 129         fputs (_("    No explicit members\n"), stdout);
 130       if (mem_imp_cnt)
 131         {
 132           fputs (_("    Implicit members:\n"), stdout);
 133           for (i = 0; i < mem_imp_cnt; ++i)
 134             printf ("\t%s\n", &mem_imp[i][2]);
 135         }
 136       else
 137         fputs (_("    No implicit members\n"), stdout);
 138       if (mem_rec_cnt)
 139         {
 140           fputs (_("    Recursive members:\n"), stdout);
 141           for (i = 0; i < mem_rec_cnt; ++i)
 142             printf ("\t%s\n", &mem_rec[i][1]);
 143         }
 144       else
 145         fputs (_("    No recursive members\n"), stdout);
 146       if (nomem_exp_cnt)
 147         {
 148           fputs (_("    Explicit nonmembers:\n"), stdout);
 149           for (i = 0; i < nomem_exp_cnt; ++i)
 150             printf ("\t%s\n", &nomem_exp[i][1]);
 151         }
 152       else
 153         fputs (_("    No explicit nonmembers\n"), stdout);
 154       if (nomem_imp_cnt)
 155         {
 156           fputs (_("    Implicit nonmembers:\n"), stdout);
 157           for (i = 0; i < nomem_imp_cnt; ++i)
 158             printf ("\t%s\n", &nomem_imp[i][3]);
 159         }
 160       else
 161         fputs (_("    No implicit nonmembers\n"), stdout);
 162       if (nomem_rec_cnt)
 163         {
 164           fputs (_("    Recursive nonmembers:\n"), stdout);
 165           for (i = 0; i < nomem_rec_cnt; ++i)
 166             printf ("\t%s=n", &nomem_rec[i][2]);
 167         }
 168       else
 169         fputs (_("    No recursive nonmembers\n"), stdout);
 170
 171       nis_freeresult (res);
 172     }
 173 }
 174 libnsl_hidden_nolink_def (nis_print_group_entry, GLIBC_2_1)