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 | |
34 | extern enum nss_status |
35 | _nss_netgroup_parseline (char **cursor, struct __netgrent *netgrp, |
36 | char *buffer, size_t buflen, int *errnop); |
37 | |
38 | |
39 | static void |
40 | internal_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 | |
49 | enum 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 | |
83 | enum nss_status |
84 | _nss_nis_endnetgrent (struct __netgrent *netgrp) |
85 | { |
86 | internal_nis_endnetgrent (netgrp); |
87 | |
88 | return NSS_STATUS_SUCCESS; |
89 | } |
90 | |
91 | |
92 | enum 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 | |