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f166d865 | 1 | /* Copyright (C) 1996, 1997 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> | |
25 | #include <libc-lock.h> | |
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 | |
34 | #include "../nss/nss_files/files-parse.c" | |
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 | |
48 | saveit (int instatus, char *inkey, int inkeylen, char *inval, | |
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 | } | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | enum nss_status | |
76 | internal_nis_setprotoent (void) | |
77 | { | |
78 | char *domainname; | |
79 | struct ypall_callback ypcb; | |
80 | ||
81 | yp_get_default_domain (&domainname); | |
82 | ||
83 | while (start != NULL) | |
84 | { | |
85 | if (start->val != NULL) | |
86 | free (start->val); | |
87 | next = start; | |
88 | start = start->next; | |
89 | free (next); | |
90 | } | |
91 | start = NULL; | |
92 | ||
93 | ypcb.foreach = saveit; | |
94 | ypcb.data = NULL; | |
95 | yp_all (domainname, "protocols.bynumber", &ypcb); | |
96 | next = start; | |
97 | ||
98 | return NSS_STATUS_SUCCESS; | |
99 | } | |
6259ec0d UD |
100 | |
101 | enum nss_status | |
102 | _nss_nis_setprotoent (void) | |
103 | { | |
f166d865 UD |
104 | enum nss_status status; |
105 | ||
6259ec0d UD |
106 | __libc_lock_lock (lock); |
107 | ||
f166d865 | 108 | status = internal_nis_setprotoent (); |
6259ec0d UD |
109 | |
110 | __libc_lock_unlock (lock); | |
111 | ||
f166d865 | 112 | return status; |
6259ec0d UD |
113 | } |
114 | ||
115 | enum nss_status | |
116 | _nss_nis_endprotoent (void) | |
117 | { | |
118 | __libc_lock_lock (lock); | |
119 | ||
f166d865 | 120 | while (start != NULL) |
6259ec0d | 121 | { |
f166d865 UD |
122 | if (start->val != NULL) |
123 | free (start->val); | |
124 | next = start; | |
125 | start = start->next; | |
126 | free (next); | |
6259ec0d | 127 | } |
f166d865 UD |
128 | start = NULL; |
129 | next = NULL; | |
130 | ||
6259ec0d | 131 | __libc_lock_unlock (lock); |
f166d865 | 132 | |
6259ec0d UD |
133 | return NSS_STATUS_SUCCESS; |
134 | } | |
135 | ||
136 | static enum nss_status | |
137 | internal_nis_getprotoent_r (struct protoent *proto, | |
138 | char *buffer, size_t buflen) | |
139 | { | |
7e3be507 | 140 | struct parser_data *data = (void *) buffer; |
f166d865 | 141 | int parse_res; |
6259ec0d | 142 | |
f166d865 UD |
143 | if (start == NULL) |
144 | internal_nis_setprotoent (); | |
6259ec0d UD |
145 | |
146 | /* Get the next entry until we found a correct one. */ | |
147 | do | |
148 | { | |
6259ec0d | 149 | char *p; |
f166d865 UD |
150 | |
151 | if (next == NULL) | |
152 | return NSS_STATUS_NOTFOUND; | |
153 | p = strcpy (buffer, next->val); | |
154 | next = next->next; | |
155 | ||
6259ec0d UD |
156 | while (isspace (*p)) |
157 | ++p; | |
6259ec0d | 158 | |
7e3be507 | 159 | parse_res = _nss_files_parse_protoent (p, proto, data, buflen); |
6259ec0d UD |
160 | if (!parse_res && errno == ERANGE) |
161 | return NSS_STATUS_TRYAGAIN; | |
6259ec0d UD |
162 | } |
163 | while (!parse_res); | |
f166d865 | 164 | |
6259ec0d UD |
165 | return NSS_STATUS_SUCCESS; |
166 | } | |
167 | ||
168 | enum nss_status | |
169 | _nss_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen) | |
170 | { | |
171 | enum nss_status status; | |
172 | ||
173 | __libc_lock_lock (lock); | |
174 | ||
175 | status = internal_nis_getprotoent_r (proto, buffer, buflen); | |
176 | ||
177 | __libc_lock_unlock (lock); | |
178 | ||
179 | return status; | |
180 | } | |
181 | ||
182 | enum nss_status | |
183 | _nss_nis_getprotobyname_r (const char *name, struct protoent *proto, | |
184 | char *buffer, size_t buflen) | |
185 | { | |
7e3be507 | 186 | struct parser_data *data = (void *) buffer; |
6259ec0d UD |
187 | enum nss_status retval; |
188 | char *domain, *result, *p; | |
189 | int len, parse_res; | |
190 | ||
191 | if (name == NULL) | |
192 | { | |
193 | __set_errno (EINVAL); | |
194 | return NSS_STATUS_UNAVAIL; | |
195 | } | |
196 | ||
197 | if (yp_get_default_domain (&domain)) | |
198 | return NSS_STATUS_UNAVAIL; | |
199 | ||
200 | retval = yperr2nss (yp_match (domain, "protocols.byname", name, | |
201 | strlen (name), &result, &len)); | |
202 | ||
203 | if (retval != NSS_STATUS_SUCCESS) | |
204 | { | |
205 | if (retval == NSS_STATUS_TRYAGAIN) | |
206 | __set_errno (EAGAIN); | |
207 | return retval; | |
208 | } | |
209 | ||
f8b87ef0 | 210 | if ((size_t) (len + 1) > buflen) |
6259ec0d UD |
211 | { |
212 | free (result); | |
213 | __set_errno (ERANGE); | |
214 | return NSS_STATUS_TRYAGAIN; | |
215 | } | |
216 | ||
217 | p = strncpy (buffer, result, len); | |
218 | buffer[len] = '\0'; | |
219 | while (isspace (*p)) | |
220 | ++p; | |
221 | free (result); | |
222 | ||
7e3be507 | 223 | parse_res = _nss_files_parse_protoent (p, proto, data, buflen); |
6259ec0d UD |
224 | |
225 | if (!parse_res) | |
226 | { | |
227 | if (errno == ERANGE) | |
228 | return NSS_STATUS_TRYAGAIN; | |
229 | else | |
230 | return NSS_STATUS_NOTFOUND; | |
231 | } | |
232 | else | |
233 | return NSS_STATUS_SUCCESS; | |
234 | } | |
235 | ||
236 | enum nss_status | |
237 | _nss_nis_getprotobynumber_r (int number, struct protoent *proto, | |
238 | char *buffer, size_t buflen) | |
239 | { | |
7e3be507 | 240 | struct parser_data *data = (void *) buffer; |
6259ec0d UD |
241 | enum nss_status retval; |
242 | char *domain, *result, *p; | |
243 | int len, nlen, parse_res; | |
244 | char buf[32]; | |
245 | ||
246 | if (yp_get_default_domain (&domain)) | |
247 | return NSS_STATUS_UNAVAIL; | |
248 | ||
249 | nlen = sprintf (buf, "%d", number); | |
250 | ||
251 | retval = yperr2nss (yp_match (domain, "protocols.bynumber", buf, | |
252 | nlen, &result, &len)); | |
253 | ||
254 | if (retval != NSS_STATUS_SUCCESS) | |
255 | { | |
256 | if (retval == NSS_STATUS_TRYAGAIN) | |
257 | __set_errno (EAGAIN); | |
258 | return retval; | |
259 | } | |
260 | ||
f8b87ef0 | 261 | if ((size_t) (len + 1) > buflen) |
6259ec0d UD |
262 | { |
263 | free (result); | |
264 | __set_errno (ERANGE); | |
265 | return NSS_STATUS_TRYAGAIN; | |
266 | } | |
267 | ||
268 | p = strncpy (buffer, result, len); | |
269 | buffer[len] = '\0'; | |
270 | while (isspace (*p)) | |
271 | ++p; | |
272 | free (result); | |
273 | ||
7e3be507 | 274 | parse_res = _nss_files_parse_protoent (p, proto, data, buflen); |
6259ec0d UD |
275 | |
276 | if (!parse_res) | |
277 | { | |
278 | if (errno == ERANGE) | |
279 | return NSS_STATUS_TRYAGAIN; | |
280 | else | |
281 | return NSS_STATUS_NOTFOUND; | |
282 | } | |
283 | else | |
284 | return NSS_STATUS_SUCCESS; | |
285 | } |