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fc9f33e3 | 1 | /* Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc. |
6259ec0d | 2 | This file is part of the GNU C Library. |
b85697f6 | 3 | Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996. |
6259ec0d UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
6259ec0d UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
6259ec0d | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
6259ec0d UD |
19 | |
20 | #include <nss.h> | |
21 | #include <ctype.h> | |
22 | #include <errno.h> | |
23 | #include <string.h> | |
5107cf1d | 24 | #include <bits/libc-lock.h> |
6259ec0d UD |
25 | #include <rpcsvc/yp.h> |
26 | #include <rpcsvc/ypclnt.h> | |
6b083d46 | 27 | #include <netinet/ether.h> |
6259ec0d UD |
28 | #include <netinet/if_ether.h> |
29 | ||
30 | #include "nss-nis.h" | |
31 | ||
32 | /* Protect global state against multiple changers */ | |
33 | __libc_lock_define_initialized (static, lock) | |
34 | ||
7e3be507 UD |
35 | /* Get the declaration of the parser function. */ |
36 | #define ENTNAME etherent | |
6b083d46 | 37 | #define STRUCTURE etherent |
7e3be507 | 38 | #define EXTERN_PARSER |
cf29ffbe | 39 | #include <nss/nss_files/files-parse.c> |
7e3be507 | 40 | |
f166d865 UD |
41 | struct response |
42 | { | |
43 | char *val; | |
44 | struct response *next; | |
45 | }; | |
6259ec0d | 46 | |
fc9f33e3 UD |
47 | static struct response *start; |
48 | static struct response *next; | |
f166d865 UD |
49 | |
50 | static int | |
0d8733c4 | 51 | saveit (int instatus, char *inkey, int inkeylen, char *inval, |
f166d865 | 52 | int invallen, char *indata) |
6259ec0d | 53 | { |
f166d865 UD |
54 | if (instatus != YP_TRUE) |
55 | return instatus; | |
56 | ||
57 | if (inkey && inkeylen > 0 && inval && invallen > 0) | |
58 | { | |
59 | if (start == NULL) | |
60 | { | |
61 | start = malloc (sizeof (struct response)); | |
3b965a7d UD |
62 | if (start == NULL) |
63 | return YP_FALSE; | |
f166d865 UD |
64 | next = start; |
65 | } | |
66 | else | |
67 | { | |
68 | next->next = malloc (sizeof (struct response)); | |
3b965a7d UD |
69 | if (next->next == NULL) |
70 | return YP_FALSE; | |
f166d865 UD |
71 | next = next->next; |
72 | } | |
73 | next->next = NULL; | |
74 | next->val = malloc (invallen + 1); | |
3b965a7d UD |
75 | if (next->val == NULL) |
76 | return YP_FALSE; | |
f166d865 UD |
77 | strncpy (next->val, inval, invallen); |
78 | next->val[invallen] = '\0'; | |
79 | } | |
0d8733c4 | 80 | |
f166d865 UD |
81 | return 0; |
82 | } | |
6259ec0d | 83 | |
900bec85 | 84 | static enum nss_status |
f166d865 UD |
85 | internal_nis_setetherent (void) |
86 | { | |
87 | char *domainname; | |
88 | struct ypall_callback ypcb; | |
0d8733c4 UD |
89 | enum nss_status status; |
90 | ||
91 | yp_get_default_domain (&domainname); | |
92 | ||
f166d865 | 93 | while (start != NULL) |
6259ec0d | 94 | { |
f166d865 UD |
95 | if (start->val != NULL) |
96 | free (start->val); | |
97 | next = start; | |
98 | start = start->next; | |
99 | free (next); | |
6259ec0d | 100 | } |
f166d865 | 101 | start = NULL; |
6259ec0d | 102 | |
f166d865 UD |
103 | ypcb.foreach = saveit; |
104 | ypcb.data = NULL; | |
0d8733c4 | 105 | status = yperr2nss (yp_all (domainname, "ethers.byname", &ypcb)); |
f166d865 | 106 | next = start; |
6259ec0d | 107 | |
0d8733c4 | 108 | return status; |
6259ec0d UD |
109 | } |
110 | ||
f166d865 | 111 | enum nss_status |
ed073f0e | 112 | _nss_nis_setetherent (int stayopen) |
f166d865 UD |
113 | { |
114 | enum nss_status result; | |
115 | ||
116 | __libc_lock_lock (lock); | |
117 | ||
118 | result = internal_nis_setetherent (); | |
119 | ||
120 | __libc_lock_unlock (lock); | |
121 | ||
122 | return result; | |
123 | } | |
0d8733c4 | 124 | |
6259ec0d UD |
125 | enum nss_status |
126 | _nss_nis_endetherent (void) | |
127 | { | |
128 | __libc_lock_lock (lock); | |
129 | ||
f166d865 | 130 | while (start != NULL) |
6259ec0d | 131 | { |
f166d865 UD |
132 | if (start->val != NULL) |
133 | free (start->val); | |
134 | next = start; | |
135 | start = start->next; | |
136 | free (next); | |
6259ec0d | 137 | } |
f166d865 UD |
138 | start = NULL; |
139 | next = NULL; | |
0d8733c4 | 140 | |
6259ec0d | 141 | __libc_lock_unlock (lock); |
0d8733c4 | 142 | |
6259ec0d UD |
143 | return NSS_STATUS_SUCCESS; |
144 | } | |
145 | ||
146 | static enum nss_status | |
6b083d46 | 147 | internal_nis_getetherent_r (struct etherent *eth, char *buffer, size_t buflen, |
d71b808a | 148 | int *errnop) |
6259ec0d | 149 | { |
7e3be507 | 150 | struct parser_data *data = (void *) buffer; |
f166d865 | 151 | int parse_res; |
6259ec0d | 152 | |
f166d865 UD |
153 | if (start == NULL) |
154 | internal_nis_setetherent (); | |
6259ec0d UD |
155 | |
156 | /* Get the next entry until we found a correct one. */ | |
157 | do | |
158 | { | |
6259ec0d | 159 | char *p; |
0d8733c4 | 160 | |
f166d865 | 161 | if (next == NULL) |
0c6cee5d UD |
162 | { |
163 | *errnop = ENOENT; | |
164 | return NSS_STATUS_NOTFOUND; | |
165 | } | |
9756dfe1 | 166 | p = strncpy (buffer, next->val, buflen); |
0d8733c4 | 167 | |
6259ec0d UD |
168 | while (isspace (*p)) |
169 | ++p; | |
0d8733c4 | 170 | |
d71b808a UD |
171 | parse_res = _nss_files_parse_etherent (p, eth, data, buflen, errnop); |
172 | if (parse_res == -1) | |
60c96635 UD |
173 | return NSS_STATUS_TRYAGAIN; |
174 | next = next->next; | |
6259ec0d UD |
175 | } |
176 | while (!parse_res); | |
d71b808a | 177 | |
6259ec0d UD |
178 | return NSS_STATUS_SUCCESS; |
179 | } | |
180 | ||
181 | enum nss_status | |
6b083d46 | 182 | _nss_nis_getetherent_r (struct etherent *result, char *buffer, size_t buflen, |
d71b808a | 183 | int *errnop) |
6259ec0d UD |
184 | { |
185 | int status; | |
186 | ||
187 | __libc_lock_lock (lock); | |
188 | ||
d71b808a | 189 | status = internal_nis_getetherent_r (result, buffer, buflen, errnop); |
6259ec0d UD |
190 | |
191 | __libc_lock_unlock (lock); | |
192 | ||
193 | return status; | |
194 | } | |
195 | ||
196 | enum nss_status | |
6b083d46 | 197 | _nss_nis_gethostton_r (const char *name, struct etherent *eth, |
d71b808a | 198 | char *buffer, size_t buflen, int *errnop) |
6259ec0d | 199 | { |
7e3be507 | 200 | struct parser_data *data = (void *) buffer; |
6259ec0d UD |
201 | enum nss_status retval; |
202 | char *domain, *result, *p; | |
203 | int len, parse_res; | |
204 | ||
205 | if (name == NULL) | |
206 | { | |
ac9f45cf | 207 | *errnop = EINVAL; |
6259ec0d UD |
208 | return NSS_STATUS_UNAVAIL; |
209 | } | |
210 | ||
211 | if (yp_get_default_domain (&domain)) | |
212 | return NSS_STATUS_UNAVAIL; | |
213 | ||
214 | retval = yperr2nss (yp_match (domain, "ethers.byname", name, | |
215 | strlen (name), &result, &len)); | |
216 | ||
217 | if (retval != NSS_STATUS_SUCCESS) | |
218 | { | |
0c6cee5d UD |
219 | if (retval == NSS_STATUS_NOTFOUND) |
220 | *errnop = ENOENT; | |
221 | else if (retval == NSS_STATUS_TRYAGAIN) | |
d71b808a | 222 | *errnop = errno; |
6259ec0d UD |
223 | return retval; |
224 | } | |
225 | ||
f8b87ef0 | 226 | if ((size_t) (len + 1) > buflen) |
6259ec0d UD |
227 | { |
228 | free (result); | |
d71b808a | 229 | *errnop = ERANGE; |
6259ec0d UD |
230 | return NSS_STATUS_TRYAGAIN; |
231 | } | |
232 | ||
233 | p = strncpy (buffer, result, len); | |
234 | buffer[len] = '\0'; | |
235 | while (isspace (*p)) | |
236 | ++p; | |
237 | free (result); | |
238 | ||
d71b808a | 239 | parse_res = _nss_files_parse_etherent (p, eth, data, buflen, errnop); |
ac9f45cf UD |
240 | if (parse_res < 1) |
241 | { | |
242 | if (parse_res == -1) | |
243 | return NSS_STATUS_TRYAGAIN; | |
244 | else | |
b85697f6 UD |
245 | { |
246 | *errnop = ENOENT; | |
247 | return NSS_STATUS_NOTFOUND; | |
248 | } | |
ac9f45cf UD |
249 | } |
250 | return NSS_STATUS_SUCCESS; | |
6259ec0d UD |
251 | } |
252 | ||
253 | enum nss_status | |
6b083d46 | 254 | _nss_nis_getntohost_r (const struct ether_addr *addr, struct etherent *eth, |
d71b808a | 255 | char *buffer, size_t buflen, int *errnop) |
6259ec0d | 256 | { |
7e3be507 | 257 | struct parser_data *data = (void *) buffer; |
6259ec0d UD |
258 | enum nss_status retval; |
259 | char *domain, *result, *p; | |
260 | int len, nlen, parse_res; | |
261 | char buf[33]; | |
262 | ||
263 | if (addr == NULL) | |
264 | { | |
ac9f45cf | 265 | *errnop = EINVAL; |
6259ec0d UD |
266 | return NSS_STATUS_UNAVAIL; |
267 | } | |
268 | ||
269 | if (yp_get_default_domain (&domain)) | |
270 | return NSS_STATUS_UNAVAIL; | |
271 | ||
272 | nlen = sprintf (buf, "%x:%x:%x:%x:%x:%x", | |
273 | (int) addr->ether_addr_octet[0], | |
274 | (int) addr->ether_addr_octet[1], | |
275 | (int) addr->ether_addr_octet[2], | |
276 | (int) addr->ether_addr_octet[3], | |
277 | (int) addr->ether_addr_octet[4], | |
278 | (int) addr->ether_addr_octet[5]); | |
279 | ||
280 | retval = yperr2nss (yp_match (domain, "ethers.byaddr", buf, | |
281 | nlen, &result, &len)); | |
282 | ||
283 | if (retval != NSS_STATUS_SUCCESS) | |
284 | { | |
285 | if (retval == NSS_STATUS_TRYAGAIN) | |
d71b808a | 286 | *errnop = errno; |
6259ec0d UD |
287 | return retval; |
288 | } | |
289 | ||
f8b87ef0 | 290 | if ((size_t) (len + 1) > buflen) |
6259ec0d UD |
291 | { |
292 | free (result); | |
d71b808a | 293 | *errnop = ERANGE; |
6259ec0d UD |
294 | return NSS_STATUS_TRYAGAIN; |
295 | } | |
296 | ||
297 | p = strncpy (buffer, result, len); | |
298 | buffer[len] = '\0'; | |
299 | while (isspace (*p)) | |
300 | ++p; | |
301 | free (result); | |
302 | ||
d71b808a | 303 | parse_res = _nss_files_parse_etherent (p, eth, data, buflen, errnop); |
ac9f45cf UD |
304 | if (parse_res < 1) |
305 | { | |
306 | if (parse_res == -1) | |
307 | return NSS_STATUS_TRYAGAIN; | |
308 | else | |
0c6cee5d UD |
309 | { |
310 | *errnop = ENOENT; | |
311 | return NSS_STATUS_NOTFOUND; | |
312 | } | |
ac9f45cf UD |
313 | } |
314 | return NSS_STATUS_SUCCESS; | |
6259ec0d | 315 | } |