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/* Copyright (c) 1997-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <assert.h>
#include <string.h>
#include <rpcsvc/nis.h>
#include <shlib-compat.h>
nis_error
nis_addmember (const_nis_name member, const_nis_name group)
{
if (group != NULL && group[0] != '\0')
{
size_t grouplen = strlen (group);
char buf[grouplen + 14 + NIS_MAXNAMELEN];
char domainbuf[grouplen + 2];
nis_result *res, *res2;
nis_error status;
char *cp, *cp2;
cp = rawmemchr (nis_leaf_of_r (group, buf, sizeof (buf) - 1), '\0');
cp = stpcpy (cp, ".groups_dir");
cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1);
if (cp2 != NULL && cp2[0] != '\0')
{
*cp++ = '.';
stpcpy (cp, cp2);
}
res = nis_lookup (buf, FOLLOW_LINKS | EXPAND_NAME);
if (NIS_RES_STATUS (res) != NIS_SUCCESS)
{
status = NIS_RES_STATUS (res);
nis_freeresult (res);
return status;
}
if (NIS_RES_NUMOBJ (res) != 1
|| __type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ)
{
nis_freeresult (res);
return NIS_INVALIDOBJ;
}
u_int gr_members_len
= NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len;
nis_name *new_gr_members_val
= realloc (NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val,
(gr_members_len + 1) * sizeof (nis_name));
if (new_gr_members_val == NULL)
goto nomem_out;
NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val
= new_gr_members_val;
new_gr_members_val[gr_members_len] = strdup (member);
if (new_gr_members_val[gr_members_len] == NULL)
{
nomem_out:
nis_freeresult (res);
return NIS_NOMEMORY;
}
++NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len;
/* Check the buffer bounds are not exceeded. */
assert (strlen (NIS_RES_OBJECT(res)->zo_name) + 1 < grouplen + 14);
cp = stpcpy (buf, NIS_RES_OBJECT(res)->zo_name);
*cp++ = '.';
strncpy (cp, NIS_RES_OBJECT (res)->zo_domain, NIS_MAXNAMELEN);
res2 = nis_modify (buf, NIS_RES_OBJECT (res));
status = NIS_RES_STATUS (res2);
nis_freeresult (res);
nis_freeresult (res2);
return status;
}
else
return NIS_FAIL;
}
libnsl_hidden_nolink_def (nis_addmember, GLIBC_2_1)
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