nis/nis_removemember.c

   1 /* Copyright (c) 1997 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 Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA. */
  19
  20 #include <string.h>
  21 #include <rpcsvc/nis.h>
  22 #include <rpcsvc/nislib.h>
  23
  24 nis_error
  25 nis_removemember (const_nis_name member, const_nis_name group)
  26 {
  27   if (group != NULL && strlen (group) > 0)
  28     {
  29       char buf[strlen (group) + 14 + NIS_MAXNAMELEN];
  30       char leafbuf[strlen (group) + 2];
  31       char domainbuf[strlen (group) + 2];
  32       nis_name *newmem;
  33       nis_result *res, *res2;
  34       nis_error status;
  35       char *cp, *cp2;
  36       unsigned long int i, j, k;
  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 && strlen (cp2) > 0)
  42         {
  43           cp = stpcpy (cp, ".");
  44           stpcpy (cp, cp2);
  45         }
  46       res = nis_lookup (buf, FOLLOW_LINKS|EXPAND_NAME);
  47       if (res->status != NIS_SUCCESS)
  48         {
  49           status = res->status;
  50           nis_freeresult (res);
  51           return status;
  52         }
  53       if ((res->objects.objects_len != 1) ||
  54           (res->objects.objects_val[0].zo_data.zo_type != GROUP_OBJ))
  55         return NIS_INVALIDOBJ;
  56
  57
  58       newmem = calloc (1, res->objects.objects_val[0].GR_data.gr_members.gr_members_len *
  59                        sizeof (char *));
  60
  61       k = res->objects.objects_val[0].GR_data.gr_members.gr_members_len;
  62       j = 0;
  63       for (i = 0; i < res->objects.objects_val[0].GR_data.gr_members.gr_members_len;
  64            ++i)
  65         {
  66           if (strcmp (res->objects.objects_val[0].GR_data.gr_members.gr_members_val[i],
  67                       member) != 0)
  68             {
  69               newmem[j] = res->objects.objects_val[0].GR_data.gr_members.gr_members_val[i];
  70               ++j;
  71             }
  72           else
  73             {
  74               free (res->objects.objects_val[0].GR_data.gr_members.gr_members_val[i]);
  75               --k;
  76             }
  77         }
  78       free (res->objects.objects_val[0].GR_data.gr_members.gr_members_val);
  79       newmem = realloc (newmem, k * sizeof (char*));
  80       res->objects.objects_val[0].GR_data.gr_members.gr_members_val = newmem;
  81       res->objects.objects_val[0].GR_data.gr_members.gr_members_len = k;
  82
  83       cp = stpcpy (buf, res->objects.objects_val->zo_name);
  84       *cp++ = '.';
  85       strncpy (cp, res->objects.objects_val->zo_domain, NIS_MAXNAMELEN);
  86       res2 = nis_modify (buf, res->objects.objects_val);
  87       status = res2->status;
  88       nis_freeresult (res);
  89       nis_freeresult (res2);
  90
  91       return status;
  92     }
  93   else
  94     return NIS_FAIL;
  95 }