1/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the 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 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <assert.h>
20#include <ctype.h>
21#include <errno.h>
22#include <malloc.h>
23#include <netdb.h>
24#include <nss.h>
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28#include <netgroup.h>
29#include <rpcsvc/yp.h>
30#include <rpcsvc/ypclnt.h>
31
32#include "nss-nis.h"
33
34extern enum nss_status
35_nss_netgroup_parseline (char **cursor, struct __netgrent *netgrp,
36 char *buffer, size_t buflen, int *errnop);
37
38
39static void
40internal_nis_endnetgrent (struct __netgrent *netgrp)
41{
42 free (netgrp->data);
43 netgrp->data = NULL;
44 netgrp->data_size = 0;
45 netgrp->cursor = NULL;
46}
47
48
49enum nss_status
50_nss_nis_setnetgrent (const char *group, struct __netgrent *netgrp)
51{
52 int len;
53 enum nss_status status;
54
55 status = NSS_STATUS_SUCCESS;
56
57 if (__glibc_unlikely (group == NULL || group[0] == '\0'))
58 return NSS_STATUS_UNAVAIL;
59
60 char *domain;
61 if (__glibc_unlikely (yp_get_default_domain (&domain)))
62 return NSS_STATUS_UNAVAIL;
63
64 status = yperr2nss (yp_match (domain, "netgroup", group, strlen (group),
65 &netgrp->data, &len));
66 if (__glibc_likely (status == NSS_STATUS_SUCCESS))
67 {
68 /* Our implementation of yp_match already allocates a buffer
69 which is one byte larger than the value in LEN specifies
70 and the last byte is filled with NUL. So we can simply
71 use that buffer. */
72 assert (len >= 0);
73 assert (netgrp->data[len] == '\0');
74
75 netgrp->data_size = len;
76 netgrp->cursor = netgrp->data;
77 }
78
79 return status;
80}
81
82
83enum nss_status
84_nss_nis_endnetgrent (struct __netgrent *netgrp)
85{
86 internal_nis_endnetgrent (netgrp);
87
88 return NSS_STATUS_SUCCESS;
89}
90
91
92enum nss_status
93_nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen,
94 int *errnop)
95{
96 return _nss_netgroup_parseline (&result->cursor, result, buffer, buflen,
97 errnop);
98}
99