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.
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.
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.
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. */
25 #include <bits/libc-lock.h>
26 #include <rpcsvc/nis.h>
28 #include "nss-nisplus.h"
30 __libc_lock_define_initialized (static, lock);
32 static nis_result *result = NULL;
33 static nis_name tablename_val = NULL;
34 static u_long tablename_len = 0;
36 #define NISENTRYVAL(idx,col,res) \
37 ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
39 #define NISENTRYLEN(idx,col,res) \
40 ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
43 _nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
44 char *buffer, size_t buflen, int *errnop)
46 char *first_unused = buffer;
47 size_t room_left = buflen;
54 if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
55 || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
56 || strcmp (result->objects.objects_val->EN_data.en_type,
58 || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4)
61 if (NISENTRYLEN (0, 0, result) >= room_left)
67 strncpy (first_unused, NISENTRYVAL (0, 0, result),
68 NISENTRYLEN (0, 0, result));
69 first_unused[NISENTRYLEN (0, 0, result)] = '\0';
70 serv->s_name = first_unused;
71 room_left -= (strlen (first_unused) +1);
72 first_unused += strlen (first_unused) +1;
74 if (NISENTRYLEN (0, 2, result) >= room_left)
76 strncpy (first_unused, NISENTRYVAL (0, 2, result),
77 NISENTRYLEN (0, 2, result));
78 first_unused[NISENTRYLEN (0, 2, result)] = '\0';
79 serv->s_proto = first_unused;
80 room_left -= strlen (first_unused) + 1;
81 first_unused += strlen (first_unused) + 1;
83 serv->s_port = atoi (NISENTRYVAL (0, 3, result));
87 for (i = 0; i < result->objects.objects_len; i++)
89 if (strcmp (NISENTRYVAL (i, 1, result), serv->s_name) != 0)
91 if (NISENTRYLEN (i, 1, result) + 2 > room_left)
94 p = __stpncpy (p, NISENTRYVAL (i, 1, result),
95 NISENTRYLEN (i, 1, result));
97 room_left -= (NISENTRYLEN (i, 1, result) + 1);
103 /* Adjust the pointer so it is aligned for
105 first_unused += __alignof__ (char *) - 1;
106 first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
107 serv->s_aliases = (char **) first_unused;
108 if (room_left < sizeof (char *))
110 room_left -= (sizeof (char *));
111 serv->s_aliases[0] = NULL;
114 while (*line != '\0')
116 /* Skip leading blanks. */
117 while (isspace (*line))
123 if (room_left < sizeof (char *))
126 room_left -= sizeof (char *);
127 serv->s_aliases[i] = line;
129 while (*line != '\0' && *line != ' ')
139 serv->s_aliases[i+1] = NULL;
145 static enum nss_status
146 _nss_create_tablename (int *errnop)
148 if (tablename_val == NULL)
150 char buf [40 + strlen (nis_local_directory ())];
153 p = __stpcpy (buf, "services.org_dir.");
154 p = __stpcpy (p, nis_local_directory ());
155 tablename_val = __strdup (buf);
156 if (tablename_val == NULL)
159 return NSS_STATUS_TRYAGAIN;
161 tablename_len = strlen (tablename_val);
163 return NSS_STATUS_SUCCESS;
168 _nss_nisplus_setservent (void)
170 enum nss_status status = NSS_STATUS_SUCCESS;
173 __libc_lock_lock (lock);
176 nis_freeresult (result);
179 if (tablename_val == NULL)
180 status = _nss_create_tablename (&err);
182 __libc_lock_unlock (lock);
188 _nss_nisplus_endservent (void)
190 __libc_lock_lock (lock);
193 nis_freeresult (result);
196 __libc_lock_unlock (lock);
198 return NSS_STATUS_SUCCESS;
201 static enum nss_status
202 internal_nisplus_getservent_r (struct servent *serv, char *buffer,
203 size_t buflen, int *errnop)
207 /* Get the next entry until we found a correct one. */
210 nis_result *saved_res;
215 if (tablename_val == NULL)
217 enum nss_status status = _nss_create_tablename (errnop);
219 if (status != NSS_STATUS_SUCCESS)
223 result = nis_first_entry (tablename_val);
224 if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
225 return niserr2nss (result->status);
232 res = nis_next_entry (tablename_val, &result->cookie);
234 if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
236 nis_freeresult (saved_res);
237 return niserr2nss (result->status);
241 parse_res = _nss_nisplus_parse_servent (result, serv, buffer,
245 nis_freeresult (result);
248 return NSS_STATUS_TRYAGAIN;
253 nis_freeresult (saved_res);
258 return NSS_STATUS_SUCCESS;
262 _nss_nisplus_getservent_r (struct servent *result, char *buffer,
263 size_t buflen, int *errnop)
267 __libc_lock_lock (lock);
269 status = internal_nisplus_getservent_r (result, buffer, buflen, errnop);
271 __libc_lock_unlock (lock);
277 _nss_nisplus_getservbyname_r (const char *name, const char *protocol,
278 struct servent *serv,
279 char *buffer, size_t buflen, int *errnop)
283 if (tablename_val == NULL)
285 enum nss_status status = _nss_create_tablename (errnop);
287 if (status != NSS_STATUS_SUCCESS)
291 if (name == NULL || protocol == NULL)
294 return NSS_STATUS_NOTFOUND;
299 char buf[strlen (name) + 255 + tablename_len];
301 /* Search at first in the alias list, and use the correct name
302 for the next search */
303 sprintf (buf, "[name=%s,proto=%s],%s", name, protocol,
305 result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
307 /* If we do not find it, try it as original name. But if the
308 database is correct, we should find it in the first case, too */
309 if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
310 || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
311 || strcmp (result->objects.objects_val->EN_data.en_type,
313 || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4)
314 sprintf (buf, "[cname=%s,proto=%s],%s", name, protocol,
317 sprintf (buf, "[cname=%s,proto=%s],%s",
318 NISENTRYVAL (0, 0, result), protocol, tablename_val);
320 nis_freeresult (result);
321 result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
323 if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
325 enum nss_status status = niserr2nss (result->status);
327 nis_freeresult (result);
331 parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
333 nis_freeresult (result);
338 return NSS_STATUS_TRYAGAIN;
342 return NSS_STATUS_SUCCESS;
344 return NSS_STATUS_NOTFOUND;
349 _nss_nisplus_getservbynumber_r (const int number, const char *protocol,
350 struct servent *serv,
351 char *buffer, size_t buflen, int *errnop)
353 if (tablename_val == NULL)
355 enum nss_status status = _nss_create_tablename (errnop);
357 if (status != NSS_STATUS_SUCCESS)
361 if (protocol == NULL)
364 return NSS_STATUS_NOTFOUND;
370 char buf[60 + strlen (protocol) + tablename_len];
372 sprintf (buf, "[number=%d,proto=%s],%s",
373 number, protocol, tablename_val);
375 result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
377 if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
379 enum nss_status status = niserr2nss (result->status);
381 nis_freeresult (result);
385 parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
387 nis_freeresult (result);
392 return NSS_STATUS_TRYAGAIN;
396 return NSS_STATUS_SUCCESS;
398 return NSS_STATUS_NOTFOUND;