glibc/nis/nis_removemember.c

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/* Copyright (c) 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <string.h>
#include <rpcsvc/nis.h>
#include <rpcsvc/nislib.h>
nis_error
nis_removemember (const_nis_name member, const_nis_name group)
{
if (group != NULL && strlen (group) > 0)
{
char buf[strlen (group) + 50];
char leafbuf[strlen (group) + 2];
char domainbuf[strlen (group) + 2];
nis_name *newmem;
nis_result *res, *res2;
nis_error status;
char *cp, *cp2;
u_int i, j;
cp = stpcpy (buf, nis_leaf_of_r (group, leafbuf, sizeof (leafbuf) - 1));
cp = stpcpy (cp, ".groups_dir");
cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
if (cp2 != NULL && strlen (cp2) > 0)
{
cp = stpcpy (cp, ".");
strcpy (cp, cp2);
}
res = nis_lookup (buf, FOLLOW_LINKS|EXPAND_NAME);
if (res->status != NIS_SUCCESS)
{
status = res->status;
nis_freeresult (res);
return status;
}
if ((res->objects.objects_len != 1) ||
(res->objects.objects_val[0].zo_data.zo_type != GROUP_OBJ))
return NIS_INVALIDOBJ;
newmem = malloc (res->objects.objects_val[0].GR_data.gr_members.gr_members_len);
j = 0;
for (i = 0; i < res->objects.objects_val[0].GR_data.gr_members.gr_members_len - 1; ++i)
{
if (strcmp (res->objects.objects_val[0].GR_data.gr_members.gr_members_val[j], member) != 0)
{
newmem[j] = res->objects.objects_val[0].GR_data.gr_members.gr_members_val[i];
++j;
}
}
--res->objects.objects_val[0].GR_data.gr_members.gr_members_len;
free (res->objects.objects_val[0].GR_data.gr_members.gr_members_val);
res->objects.objects_val[0].GR_data.gr_members.gr_members_val = newmem;
res2 = nis_modify (buf, res->objects.objects_val);
status = res2->status;
nis_freeresult (res);
nis_freeresult (res2);
return status;
}
else
return NIS_FAIL;
}