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0c6cee5d | 1 | /* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. |
6259ec0d UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.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 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 <netdb.h> | |
22 | #include <ctype.h> | |
23 | #include <errno.h> | |
24 | #include <string.h> | |
5107cf1d | 25 | #include <bits/libc-lock.h> |
6259ec0d UD |
26 | #include <rpcsvc/yp.h> |
27 | #include <rpcsvc/ypclnt.h> | |
28 | ||
29 | #include "nss-nis.h" | |
30 | ||
7e3be507 UD |
31 | /* Get the declaration of the parser function. */ |
32 | #define ENTNAME protoent | |
33 | #define EXTERN_PARSER | |
cf29ffbe | 34 | #include <nss/nss_files/files-parse.c> |
7e3be507 | 35 | |
6259ec0d UD |
36 | __libc_lock_define_initialized (static, lock) |
37 | ||
f166d865 UD |
38 | struct response |
39 | { | |
40 | char *val; | |
41 | struct response *next; | |
42 | }; | |
43 | ||
44 | static struct response *start = NULL; | |
45 | static struct response *next = NULL; | |
46 | ||
47 | static int | |
cf29ffbe | 48 | saveit (int instatus, char *inkey, int inkeylen, char *inval, |
f166d865 UD |
49 | int invallen, char *indata) |
50 | { | |
51 | if (instatus != YP_TRUE) | |
52 | return instatus; | |
53 | ||
54 | if (inkey && inkeylen > 0 && inval && invallen > 0) | |
55 | { | |
56 | if (start == NULL) | |
57 | { | |
58 | start = malloc (sizeof (struct response)); | |
59 | next = start; | |
60 | } | |
61 | else | |
62 | { | |
63 | next->next = malloc (sizeof (struct response)); | |
64 | next = next->next; | |
65 | } | |
66 | next->next = NULL; | |
67 | next->val = malloc (invallen + 1); | |
68 | strncpy (next->val, inval, invallen); | |
69 | next->val[invallen] = '\0'; | |
70 | } | |
cf29ffbe | 71 | |
f166d865 UD |
72 | return 0; |
73 | } | |
74 | ||
900bec85 | 75 | static enum nss_status |
f166d865 UD |
76 | internal_nis_setprotoent (void) |
77 | { | |
78 | char *domainname; | |
79 | struct ypall_callback ypcb; | |
0d8733c4 | 80 | enum nss_status status; |
cf29ffbe | 81 | |
f166d865 | 82 | yp_get_default_domain (&domainname); |
cf29ffbe | 83 | |
f166d865 UD |
84 | while (start != NULL) |
85 | { | |
86 | if (start->val != NULL) | |
87 | free (start->val); | |
88 | next = start; | |
89 | start = start->next; | |
90 | free (next); | |
91 | } | |
92 | start = NULL; | |
cf29ffbe | 93 | |
f166d865 UD |
94 | ypcb.foreach = saveit; |
95 | ypcb.data = NULL; | |
0d8733c4 | 96 | status = yperr2nss (yp_all (domainname, "protocols.bynumber", &ypcb)); |
f166d865 | 97 | next = start; |
cf29ffbe | 98 | |
0d8733c4 | 99 | return status; |
f166d865 | 100 | } |
6259ec0d UD |
101 | |
102 | enum nss_status | |
103 | _nss_nis_setprotoent (void) | |
104 | { | |
f166d865 UD |
105 | enum nss_status status; |
106 | ||
6259ec0d UD |
107 | __libc_lock_lock (lock); |
108 | ||
f166d865 | 109 | status = internal_nis_setprotoent (); |
6259ec0d UD |
110 | |
111 | __libc_lock_unlock (lock); | |
112 | ||
f166d865 | 113 | return status; |
6259ec0d UD |
114 | } |
115 | ||
116 | enum nss_status | |
117 | _nss_nis_endprotoent (void) | |
118 | { | |
119 | __libc_lock_lock (lock); | |
120 | ||
f166d865 | 121 | while (start != NULL) |
6259ec0d | 122 | { |
f166d865 UD |
123 | if (start->val != NULL) |
124 | free (start->val); | |
125 | next = start; | |
126 | start = start->next; | |
127 | free (next); | |
6259ec0d | 128 | } |
f166d865 UD |
129 | start = NULL; |
130 | next = NULL; | |
cf29ffbe | 131 | |
6259ec0d | 132 | __libc_lock_unlock (lock); |
cf29ffbe | 133 | |
6259ec0d UD |
134 | return NSS_STATUS_SUCCESS; |
135 | } | |
136 | ||
137 | static enum nss_status | |
138 | internal_nis_getprotoent_r (struct protoent *proto, | |
d71b808a | 139 | char *buffer, size_t buflen, int *errnop) |
6259ec0d | 140 | { |
7e3be507 | 141 | struct parser_data *data = (void *) buffer; |
f166d865 | 142 | int parse_res; |
6259ec0d | 143 | |
f166d865 UD |
144 | if (start == NULL) |
145 | internal_nis_setprotoent (); | |
6259ec0d UD |
146 | |
147 | /* Get the next entry until we found a correct one. */ | |
148 | do | |
149 | { | |
6259ec0d | 150 | char *p; |
cf29ffbe | 151 | |
f166d865 | 152 | if (next == NULL) |
0c6cee5d UD |
153 | { |
154 | *errnop = ENOENT; | |
155 | return NSS_STATUS_NOTFOUND; | |
156 | } | |
9756dfe1 | 157 | p = strncpy (buffer, next->val, buflen); |
cf29ffbe | 158 | |
6259ec0d UD |
159 | while (isspace (*p)) |
160 | ++p; | |
6259ec0d | 161 | |
d71b808a UD |
162 | parse_res = _nss_files_parse_protoent (p, proto, data, buflen, errnop); |
163 | if (parse_res == -1) | |
6259ec0d | 164 | return NSS_STATUS_TRYAGAIN; |
60c96635 | 165 | next = next->next; |
6259ec0d UD |
166 | } |
167 | while (!parse_res); | |
d71b808a | 168 | |
6259ec0d UD |
169 | return NSS_STATUS_SUCCESS; |
170 | } | |
171 | ||
172 | enum nss_status | |
d71b808a UD |
173 | _nss_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen, |
174 | int *errnop) | |
6259ec0d UD |
175 | { |
176 | enum nss_status status; | |
177 | ||
178 | __libc_lock_lock (lock); | |
179 | ||
d71b808a | 180 | status = internal_nis_getprotoent_r (proto, buffer, buflen, errnop); |
6259ec0d UD |
181 | |
182 | __libc_lock_unlock (lock); | |
183 | ||
184 | return status; | |
185 | } | |
186 | ||
187 | enum nss_status | |
188 | _nss_nis_getprotobyname_r (const char *name, struct protoent *proto, | |
d71b808a | 189 | char *buffer, size_t buflen, int *errnop) |
6259ec0d | 190 | { |
7e3be507 | 191 | struct parser_data *data = (void *) buffer; |
6259ec0d UD |
192 | enum nss_status retval; |
193 | char *domain, *result, *p; | |
194 | int len, parse_res; | |
195 | ||
196 | if (name == NULL) | |
197 | { | |
ac9f45cf | 198 | *errnop = EINVAL; |
6259ec0d UD |
199 | return NSS_STATUS_UNAVAIL; |
200 | } | |
201 | ||
202 | if (yp_get_default_domain (&domain)) | |
203 | return NSS_STATUS_UNAVAIL; | |
204 | ||
205 | retval = yperr2nss (yp_match (domain, "protocols.byname", name, | |
206 | strlen (name), &result, &len)); | |
207 | ||
208 | if (retval != NSS_STATUS_SUCCESS) | |
209 | { | |
0c6cee5d UD |
210 | if (retval == NSS_STATUS_NOTFOUND) |
211 | *errnop = ENOENT; | |
212 | else if (retval == NSS_STATUS_TRYAGAIN) | |
d71b808a | 213 | *errnop = errno; |
6259ec0d UD |
214 | return retval; |
215 | } | |
216 | ||
f8b87ef0 | 217 | if ((size_t) (len + 1) > buflen) |
6259ec0d UD |
218 | { |
219 | free (result); | |
d71b808a | 220 | *errnop = ERANGE; |
6259ec0d UD |
221 | return NSS_STATUS_TRYAGAIN; |
222 | } | |
223 | ||
224 | p = strncpy (buffer, result, len); | |
225 | buffer[len] = '\0'; | |
226 | while (isspace (*p)) | |
227 | ++p; | |
228 | free (result); | |
229 | ||
d71b808a | 230 | parse_res = _nss_files_parse_protoent (p, proto, data, buflen, errnop); |
ac9f45cf UD |
231 | if (parse_res < 1) |
232 | { | |
233 | if (parse_res == -1) | |
234 | return NSS_STATUS_TRYAGAIN; | |
235 | else | |
0c6cee5d UD |
236 | { |
237 | *errnop = ENOENT; | |
238 | return NSS_STATUS_NOTFOUND; | |
239 | } | |
ac9f45cf UD |
240 | } |
241 | return NSS_STATUS_SUCCESS; | |
6259ec0d UD |
242 | } |
243 | ||
244 | enum nss_status | |
245 | _nss_nis_getprotobynumber_r (int number, struct protoent *proto, | |
d71b808a | 246 | char *buffer, size_t buflen, int *errnop) |
6259ec0d | 247 | { |
7e3be507 | 248 | struct parser_data *data = (void *) buffer; |
6259ec0d UD |
249 | enum nss_status retval; |
250 | char *domain, *result, *p; | |
251 | int len, nlen, parse_res; | |
252 | char buf[32]; | |
253 | ||
254 | if (yp_get_default_domain (&domain)) | |
255 | return NSS_STATUS_UNAVAIL; | |
256 | ||
257 | nlen = sprintf (buf, "%d", number); | |
258 | ||
259 | retval = yperr2nss (yp_match (domain, "protocols.bynumber", buf, | |
260 | nlen, &result, &len)); | |
261 | ||
262 | if (retval != NSS_STATUS_SUCCESS) | |
263 | { | |
0c6cee5d UD |
264 | if (retval == NSS_STATUS_NOTFOUND) |
265 | *errnop = ENOENT; | |
266 | else if (retval == NSS_STATUS_TRYAGAIN) | |
d71b808a | 267 | *errnop = errno; |
6259ec0d UD |
268 | return retval; |
269 | } | |
270 | ||
f8b87ef0 | 271 | if ((size_t) (len + 1) > buflen) |
6259ec0d UD |
272 | { |
273 | free (result); | |
d71b808a | 274 | *errnop = ERANGE; |
6259ec0d UD |
275 | return NSS_STATUS_TRYAGAIN; |
276 | } | |
277 | ||
278 | p = strncpy (buffer, result, len); | |
279 | buffer[len] = '\0'; | |
280 | while (isspace (*p)) | |
281 | ++p; | |
282 | free (result); | |
283 | ||
d71b808a | 284 | parse_res = _nss_files_parse_protoent (p, proto, data, buflen, errnop); |
ac9f45cf UD |
285 | if (parse_res < 1) |
286 | { | |
287 | if (parse_res == -1) | |
288 | return NSS_STATUS_TRYAGAIN; | |
289 | else | |
0c6cee5d UD |
290 | { |
291 | *errnop = ENOENT; | |
292 | return NSS_STATUS_NOTFOUND; | |
293 | } | |
ac9f45cf UD |
294 | } |
295 | return NSS_STATUS_SUCCESS; | |
6259ec0d | 296 | } |