115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/* Copyright (c) 1997, 1998, 1999, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <assert.h>
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#include <string.h>
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#include <rpcsvc/nis.h>
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nis_error
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nis_removemember (const_nis_name member, const_nis_name group)
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{
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if (group != NULL && group[0] != '\0')
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{
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size_t grouplen = strlen (group);
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char buf[grouplen + 14 + NIS_MAXNAMELEN];
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char leafbuf[grouplen + 2];
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char domainbuf[grouplen + 2];
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nis_name *newmem;
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nis_result *res, *res2;
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nis_error status;
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char *cp, *cp2;
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unsigned long int i, j, k;
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cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1));
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cp = stpcpy (cp, ".groups_dir");
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cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
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if (cp2 != NULL && cp2[0] != '\0')
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{
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cp = stpcpy (cp, ".");
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stpcpy (cp, cp2);
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}
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res = nis_lookup (buf, FOLLOW_LINKS|EXPAND_NAME);
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if (res == NULL || NIS_RES_STATUS (res) != NIS_SUCCESS)
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{
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if (res)
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{
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status = NIS_RES_STATUS (res);
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nis_freeresult (res);
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}
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else
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return NIS_NOMEMORY;
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return status;
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}
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if ((res->objects.objects_len != 1) ||
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(__type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ))
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{
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nis_freeresult (res);
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return NIS_INVALIDOBJ;
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}
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newmem =
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calloc (NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len,
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sizeof (char *));
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if (newmem == NULL)
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return NIS_NOMEMORY;
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k = NIS_RES_OBJECT (res)[0].GR_data.gr_members.gr_members_len;
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j = 0;
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for (i = 0; i < NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len;
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++i)
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{
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if (strcmp (NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_val[i],
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member) != 0)
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{
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newmem[j] = NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_val[i];
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++j;
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}
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else
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{
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free (NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_val[i]);
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--k;
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}
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}
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free (NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val);
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assert (k <= NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len);
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/* This realloc() call always decreases the size. This cannot
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fail. We still have the test but do not recover memory
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(i.e., we overwrite the input pointer). */
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newmem = realloc (newmem, k * sizeof (char*));
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if (newmem == NULL)
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return NIS_NOMEMORY;
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NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val = newmem;
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NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len = k;
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cp = stpcpy (buf, NIS_RES_OBJECT (res)->zo_name);
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*cp++ = '.';
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strncpy (cp, NIS_RES_OBJECT (res)->zo_domain, NIS_MAXNAMELEN);
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res2 = nis_modify (buf, NIS_RES_OBJECT (res));
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status = NIS_RES_STATUS (res2);
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nis_freeresult (res);
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nis_freeresult (res2);
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return status;
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}
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else
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return NIS_FAIL;
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}
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