1 /* Copyright (C) 1997, 1998 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. */
24 #include <bits/libc-lock.h>
25 #include <rpc/netdb.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_rpcent (nis_result
*result
, struct rpcent
*rpc
,
44 char *buffer
, size_t buflen
, int *errnop
)
46 char *first_unused
= buffer
;
47 size_t room_left
= buflen
;
55 if ((result
->status
!= NIS_SUCCESS
&& result
->status
!= NIS_S_SUCCESS
)
56 || __type_of (result
->objects
.objects_val
) != NIS_ENTRY_OBJ
57 || strcmp (result
->objects
.objects_val
[0].EN_data
.en_type
,
59 || result
->objects
.objects_val
[0].EN_data
.en_cols
.en_cols_len
< 3)
62 if (NISENTRYLEN (0, 0, result
) >= room_left
)
68 strncpy (first_unused
, NISENTRYVAL (0, 0, result
),
69 NISENTRYLEN (0, 0, result
));
70 first_unused
[NISENTRYLEN (0, 0, result
)] = '\0';
71 rpc
->r_name
= first_unused
;
72 room_left
-= (strlen (first_unused
) + 1);
73 first_unused
+= strlen (first_unused
) + 1;
74 rpc
->r_number
= atoi (NISENTRYVAL (0, 2, result
));
78 for (i
= 0; i
< result
->objects
.objects_len
; ++i
)
80 if (strcmp (NISENTRYVAL (i
, 1, result
), rpc
->r_name
) != 0)
82 if (NISENTRYLEN (i
, 1, result
) + 2 > room_left
)
85 p
= __stpncpy (p
, NISENTRYVAL (i
, 1, result
),
86 NISENTRYLEN (i
, 1, result
));
88 room_left
-= (NISENTRYLEN (i
, 1, result
) + 1);
94 /* Adjust the pointer so it is aligned for
96 first_unused
+= __alignof__ (char *) - 1;
97 first_unused
-= ((first_unused
- (char *) 0) % __alignof__ (char *));
98 rpc
->r_aliases
= (char **) first_unused
;
99 if (room_left
< sizeof (char *))
101 room_left
-= sizeof (char *);
102 rpc
->r_aliases
[0] = NULL
;
105 while (*line
!= '\0')
107 /* Skip leading blanks. */
108 while (isspace (*line
))
114 if (room_left
< sizeof (char *))
117 room_left
-= sizeof (char *);
118 rpc
->r_aliases
[i
] = line
;
120 while (*line
!= '\0' && *line
!= ' ')
130 rpc
->r_aliases
[i
+1] = NULL
;
136 static enum nss_status
137 _nss_create_tablename (int *errnop
)
139 if (tablename_val
== NULL
)
141 char buf
[40 + strlen (nis_local_directory ())];
144 p
= __stpcpy (buf
, "rpc.org_dir.");
145 p
= __stpcpy (p
, nis_local_directory ());
146 tablename_val
= __strdup (buf
);
147 if (tablename_val
== NULL
)
150 return NSS_STATUS_TRYAGAIN
;
152 tablename_len
= strlen (tablename_val
);
154 return NSS_STATUS_SUCCESS
;
159 _nss_nisplus_setrpcent (void)
161 enum nss_status status
= NSS_STATUS_SUCCESS
;
164 __libc_lock_lock (lock
);
167 nis_freeresult (result
);
170 if (tablename_val
== NULL
)
171 status
= _nss_create_tablename (&err
);
173 __libc_lock_unlock (lock
);
179 _nss_nisplus_endrpcent (void)
181 __libc_lock_lock (lock
);
184 nis_freeresult (result
);
187 __libc_lock_unlock (lock
);
189 return NSS_STATUS_SUCCESS
;
192 static enum nss_status
193 internal_nisplus_getrpcent_r (struct rpcent
*rpc
, char *buffer
,
194 size_t buflen
, int *errnop
)
198 /* Get the next entry until we found a correct one. */
201 nis_result
*saved_res
;
206 if (tablename_val
== NULL
)
208 enum nss_status status
= _nss_create_tablename (errnop
);
210 if (status
!= NSS_STATUS_SUCCESS
)
214 result
= nis_first_entry (tablename_val
);
215 if (niserr2nss (result
->status
) != NSS_STATUS_SUCCESS
)
216 return niserr2nss (result
->status
);
223 res
= nis_next_entry (tablename_val
, &result
->cookie
);
225 if (niserr2nss (result
->status
) != NSS_STATUS_SUCCESS
)
227 nis_freeresult (saved_res
);
228 return niserr2nss (result
->status
);
232 parse_res
= _nss_nisplus_parse_rpcent (result
, rpc
, buffer
,
236 nis_freeresult (result
);
239 return NSS_STATUS_TRYAGAIN
;
244 nis_freeresult (saved_res
);
246 } while (!parse_res
);
248 return NSS_STATUS_SUCCESS
;
252 _nss_nisplus_getrpcent_r (struct rpcent
*result
, char *buffer
,
253 size_t buflen
, int *errnop
)
257 __libc_lock_lock (lock
);
259 status
= internal_nisplus_getrpcent_r (result
, buffer
, buflen
, errnop
);
261 __libc_lock_unlock (lock
);
267 _nss_nisplus_getrpcbyname_r (const char *name
, struct rpcent
*rpc
,
268 char *buffer
, size_t buflen
, int *errnop
)
272 if (tablename_val
== NULL
)
274 enum nss_status status
= _nss_create_tablename (errnop
);
276 if (status
!= NSS_STATUS_SUCCESS
)
281 return NSS_STATUS_NOTFOUND
;
285 char buf
[strlen (name
) + 255 + tablename_len
];
287 /* Search at first in the alias list, and use the correct name
288 for the next search */
289 sprintf (buf
, "[name=%s],%s", name
, tablename_val
);
290 result
= nis_list (buf
, FOLLOW_PATH
| FOLLOW_LINKS
, NULL
, NULL
);
292 /* If we do not find it, try it as original name. But if the
293 database is correct, we should find it in the first case, too */
294 if ((result
->status
!= NIS_SUCCESS
&& result
->status
!= NIS_S_SUCCESS
)
295 || __type_of (result
->objects
.objects_val
) != NIS_ENTRY_OBJ
296 || strcmp (result
->objects
.objects_val
->EN_data
.en_type
,
298 || result
->objects
.objects_val
->EN_data
.en_cols
.en_cols_len
< 3)
299 sprintf (buf
, "[cname=%s],%s", name
, tablename_val
);
301 sprintf (buf
, "[cname=%s],%s", NISENTRYVAL (0, 0, result
),
304 nis_freeresult (result
);
305 result
= nis_list (buf
, FOLLOW_PATH
| FOLLOW_LINKS
, NULL
, NULL
);
307 if (niserr2nss (result
->status
) != NSS_STATUS_SUCCESS
)
309 enum nss_status status
= niserr2nss (result
->status
);
311 nis_freeresult (result
);
315 parse_res
= _nss_nisplus_parse_rpcent (result
, rpc
, buffer
, buflen
,
318 nis_freeresult (result
);
325 return NSS_STATUS_TRYAGAIN
;
327 return NSS_STATUS_NOTFOUND
;
329 return NSS_STATUS_SUCCESS
;
334 _nss_nisplus_getrpcbynumber_r (const int number
, struct rpcent
*rpc
,
335 char *buffer
, size_t buflen
, int *errnop
)
337 if (tablename_val
== NULL
)
339 enum nss_status status
= _nss_create_tablename (errnop
);
341 if (status
!= NSS_STATUS_SUCCESS
)
348 char buf
[100 + tablename_len
];
350 sprintf (buf
, "[number=%d],%s", number
, tablename_val
);
352 result
= nis_list(buf
, FOLLOW_LINKS
| FOLLOW_PATH
, NULL
, NULL
);
354 if (niserr2nss (result
->status
) != NSS_STATUS_SUCCESS
)
356 enum nss_status status
= niserr2nss (result
->status
);
358 nis_freeresult (result
);
362 parse_res
= _nss_nisplus_parse_rpcent (result
, rpc
, buffer
, buflen
,
365 nis_freeresult (result
);
372 return NSS_STATUS_TRYAGAIN
;
375 return NSS_STATUS_NOTFOUND
;
377 return NSS_STATUS_SUCCESS
;