]>
Commit | Line | Data |
---|---|---|
e61abf83 UD |
1 | /* Copyright (C) 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | 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 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
18 | Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include <nss.h> | |
21 | #include <errno.h> | |
22 | #include <ctype.h> | |
23 | #include <netdb.h> | |
24 | #include <string.h> | |
25 | #include <netgroup.h> | |
5107cf1d | 26 | #include <bits/libc-lock.h> |
e61abf83 | 27 | #include <rpcsvc/nis.h> |
e61abf83 UD |
28 | |
29 | #include "nss-nisplus.h" | |
30 | ||
31 | __libc_lock_define_initialized (static, lock) | |
32 | ||
26dee9c4 UD |
33 | static nis_result *data = NULL; |
34 | static unsigned long data_size = 0; | |
35 | static unsigned long position = 0; | |
e61abf83 UD |
36 | |
37 | #define NISENTRYVAL(idx,col,res) \ | |
2d7da676 | 38 | ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) |
e61abf83 UD |
39 | |
40 | #define NISENTRYLEN(idx,col,res) \ | |
2d7da676 | 41 | ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) |
e61abf83 | 42 | |
26dee9c4 | 43 | static enum nss_status |
5107cf1d | 44 | _nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, |
26dee9c4 UD |
45 | size_t buflen) |
46 | { | |
47 | enum nss_status status; | |
48 | ||
49 | /* Some sanity checks. */ | |
50 | if (data == NULL || data_size == 0) | |
2d7da676 | 51 | return NSS_STATUS_NOTFOUND; |
5107cf1d | 52 | |
26dee9c4 UD |
53 | if (position == data_size) |
54 | return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; | |
5107cf1d | 55 | |
26dee9c4 UD |
56 | if (NISENTRYLEN (position, 1, data) > 0) |
57 | { | |
58 | /* We have a list of other netgroups. */ | |
5107cf1d | 59 | |
26dee9c4 UD |
60 | result->type = group_val; |
61 | if (NISENTRYLEN (position, 1, data) >= buflen) | |
62 | { | |
63 | __set_errno (ERANGE); | |
64 | return NSS_STATUS_TRYAGAIN; | |
65 | } | |
66 | strncpy (buffer, NISENTRYVAL (position, 1, data), | |
67 | NISENTRYLEN (position, 1, data)); | |
68 | buffer[NISENTRYLEN (position, 1, data)] = '\0'; | |
69 | result->val.group = buffer; | |
70 | ++position; | |
71 | result->first = 0; | |
5107cf1d | 72 | |
26dee9c4 UD |
73 | return NSS_STATUS_SUCCESS; |
74 | } | |
75 | ||
5107cf1d | 76 | /* Before we can copy the entry to the private buffer we have to make |
26dee9c4 | 77 | sure it is big enough. */ |
5107cf1d | 78 | if (NISENTRYLEN (position, 2, data) + NISENTRYLEN (position, 3, data) + |
26dee9c4 UD |
79 | NISENTRYLEN (position, 4, data) + 6 > buflen) |
80 | { | |
81 | __set_errno (ERANGE); | |
60c96635 | 82 | status = NSS_STATUS_TRYAGAIN; |
26dee9c4 UD |
83 | } |
84 | else | |
85 | { | |
86 | char *cp = buffer; | |
5107cf1d | 87 | |
26dee9c4 | 88 | result->type = triple_val; |
5107cf1d | 89 | |
26dee9c4 UD |
90 | if (NISENTRYLEN (position, 2, data) == 0) |
91 | result->val.triple.host = NULL; | |
92 | else | |
93 | { | |
94 | result->val.triple.host = cp; | |
95 | cp = stpncpy (cp, NISENTRYVAL (position, 2, data), | |
96 | NISENTRYLEN (position, 2, data)); | |
97 | *cp = '\0'; | |
98 | ++cp; | |
99 | } | |
100 | ||
101 | if (NISENTRYLEN (position, 3, data) == 0) | |
102 | result->val.triple.user = NULL; | |
103 | else | |
104 | { | |
105 | result->val.triple.user = cp; | |
106 | cp = stpncpy (cp, NISENTRYVAL (position, 3, data), | |
107 | NISENTRYLEN (position, 3, data)); | |
108 | *cp = '\0'; | |
109 | ++cp; | |
110 | } | |
111 | ||
112 | if (NISENTRYLEN (position, 4, data) == 0) | |
113 | result->val.triple.domain = NULL; | |
114 | else | |
115 | { | |
116 | result->val.triple.domain = cp; | |
117 | cp = stpncpy (cp, NISENTRYVAL (position, 4, data), | |
118 | NISENTRYLEN (position, 4, data)); | |
119 | *cp = '\0'; | |
120 | } | |
121 | ||
122 | status = NSS_STATUS_SUCCESS; | |
123 | ||
124 | /* Remember where we stopped reading. */ | |
125 | ++position; | |
126 | ||
127 | result->first = 0; | |
128 | } | |
129 | ||
130 | return status; | |
131 | } | |
132 | ||
e61abf83 UD |
133 | enum nss_status |
134 | _nss_nisplus_setnetgrent (char *group) | |
135 | ||
136 | { | |
137 | enum nss_status status; | |
e61abf83 | 138 | char buf[strlen (group) + 30]; |
e61abf83 UD |
139 | |
140 | if (group == NULL || group[0] == '\0') | |
141 | return NSS_STATUS_UNAVAIL; | |
142 | ||
143 | status = NSS_STATUS_SUCCESS; | |
144 | ||
145 | __libc_lock_lock (lock); | |
146 | ||
147 | if (data != NULL) | |
148 | { | |
26dee9c4 | 149 | nis_freeresult (data); |
e61abf83 UD |
150 | data = NULL; |
151 | data_size = 0; | |
26dee9c4 | 152 | position = 0; |
e61abf83 UD |
153 | } |
154 | ||
2d7da676 | 155 | sprintf (buf, "[name=%s],netgroup.org_dir", group); |
e61abf83 | 156 | |
2d7da676 | 157 | data = nis_list (buf, EXPAND_NAME, NULL, NULL); |
e61abf83 | 158 | |
26dee9c4 | 159 | if (niserr2nss (data->status) != NSS_STATUS_SUCCESS) |
e61abf83 | 160 | { |
26dee9c4 UD |
161 | status = niserr2nss (data->status); |
162 | nis_freeresult (data); | |
163 | data = NULL; | |
e61abf83 | 164 | } |
26dee9c4 UD |
165 | else |
166 | data_size = data->objects.objects_len; | |
5107cf1d | 167 | |
e61abf83 | 168 | __libc_lock_unlock (lock); |
5107cf1d | 169 | |
e61abf83 UD |
170 | return status; |
171 | } | |
172 | ||
173 | enum nss_status | |
174 | _nss_nisplus_endnetgrent (void) | |
175 | { | |
176 | __libc_lock_lock (lock); | |
177 | ||
178 | if (data != NULL) | |
179 | { | |
26dee9c4 | 180 | nis_freeresult (data); |
e61abf83 UD |
181 | data = NULL; |
182 | data_size = 0; | |
26dee9c4 | 183 | position = 0; |
e61abf83 UD |
184 | } |
185 | ||
186 | __libc_lock_unlock (lock); | |
187 | ||
188 | return NSS_STATUS_SUCCESS; | |
189 | } | |
190 | ||
191 | enum nss_status | |
192 | _nss_nisplus_getnetgrent_r (struct __netgrent *result, | |
193 | char *buffer, size_t buflen) | |
194 | { | |
195 | enum nss_status status; | |
196 | ||
e61abf83 UD |
197 | __libc_lock_lock (lock); |
198 | ||
26dee9c4 | 199 | status = _nss_nisplus_parse_netgroup (result, buffer, buflen); |
e61abf83 UD |
200 | |
201 | __libc_lock_unlock (lock); | |
202 | ||
203 | return status; | |
204 | } |