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a18f73be | 1 | /* Copyright (C) 1997, 1998, 2001 Free Software Foundation, Inc. |
e61abf83 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. | |
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. | |
e61abf83 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. |
e61abf83 | 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. */ | |
e61abf83 | 19 | |
36a8586d | 20 | #include <errno.h> |
2d7da676 | 21 | #include <fcntl.h> |
e61abf83 | 22 | #include <string.h> |
4360eafd | 23 | #include <libintl.h> |
e61abf83 UD |
24 | #include <rpc/rpc.h> |
25 | #include <rpc/auth.h> | |
26 | #include <rpcsvc/nis.h> | |
27 | #include <sys/socket.h> | |
28 | #include <netinet/in.h> | |
29 | #include <arpa/inet.h> | |
91eee4dd UD |
30 | |
31 | #include "nis_xdr.h" | |
e61abf83 UD |
32 | #include "nis_intern.h" |
33 | ||
cc3fa755 UD |
34 | static struct timeval RPCTIMEOUT = {10, 0}; |
35 | static struct timeval UDPTIMEOUT = {5, 0}; | |
2d7da676 | 36 | |
26a60f90 UD |
37 | extern u_short __pmap_getnisport (struct sockaddr_in *address, u_long program, |
38 | u_long version, u_int protocol); | |
39 | ||
3996f34b | 40 | unsigned long |
e61abf83 UD |
41 | inetstr2int (const char *str) |
42 | { | |
43 | char buffer[strlen (str) + 3]; | |
44 | size_t buflen; | |
45 | size_t i, j; | |
46 | ||
47 | buflen = stpcpy (buffer, str) - buffer; | |
48 | ||
49 | j = 0; | |
50 | for (i = 0; i < buflen; ++i) | |
51 | if (buffer[i] == '.') | |
52 | { | |
53 | ++j; | |
54 | if (j == 4) | |
55 | { | |
56 | buffer[i] = '\0'; | |
57 | break; | |
58 | } | |
59 | } | |
60 | ||
61 | return inet_addr (buffer); | |
62 | } | |
63 | ||
e852e889 UD |
64 | void |
65 | __nisbind_destroy (dir_binding *bind) | |
e61abf83 | 66 | { |
2d7da676 | 67 | if (bind->clnt != NULL) |
e61abf83 | 68 | { |
2d7da676 UD |
69 | if (bind->use_auth) |
70 | auth_destroy (bind->clnt->cl_auth); | |
71 | clnt_destroy (bind->clnt); | |
72 | } | |
2d7da676 UD |
73 | } |
74 | ||
e852e889 UD |
75 | nis_error |
76 | __nisbind_next (dir_binding *bind) | |
2d7da676 | 77 | { |
3996f34b | 78 | u_int j; |
2d7da676 UD |
79 | |
80 | if (bind->clnt != NULL) | |
81 | { | |
82 | if (bind->use_auth) | |
83 | auth_destroy (bind->clnt->cl_auth); | |
84 | clnt_destroy (bind->clnt); | |
85 | bind->clnt = NULL; | |
86 | } | |
3996f34b UD |
87 | |
88 | if (bind->trys >= bind->server_len) | |
89 | return NIS_FAIL; | |
90 | ||
91 | for (j = bind->current_ep + 1; | |
92 | j < bind->server_val[bind->server_used].ep.ep_len; ++j) | |
93 | if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].family, | |
94 | "inet") == 0) | |
e852e889 | 95 | if (bind->server_val[bind->server_used].ep.ep_val[j].proto[0] == '-') |
3996f34b UD |
96 | { |
97 | bind->current_ep = j; | |
98 | return NIS_SUCCESS; | |
99 | } | |
100 | ||
101 | ++bind->trys; | |
102 | ++bind->server_used; | |
103 | if (bind->server_used >= bind->server_len) | |
104 | bind->server_used = 0; | |
105 | ||
650425ce | 106 | for (j = 0; j < bind->server_val[bind->server_used].ep.ep_len; ++j) |
3996f34b UD |
107 | if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].family, |
108 | "inet") == 0) | |
d6db1d53 | 109 | if (bind->server_val[bind->server_used].ep.ep_val[j].proto[0] == '-') |
3996f34b UD |
110 | { |
111 | bind->current_ep = j; | |
112 | return NIS_SUCCESS; | |
113 | } | |
114 | ||
115 | return NIS_FAIL; | |
2d7da676 UD |
116 | } |
117 | ||
e852e889 UD |
118 | nis_error |
119 | __nisbind_connect (dir_binding *dbp) | |
2d7da676 | 120 | { |
2d7da676 | 121 | nis_server *serv; |
2d7da676 UD |
122 | |
123 | if (dbp == NULL) | |
124 | return NIS_FAIL; | |
125 | ||
126 | serv = &dbp->server_val[dbp->server_used]; | |
127 | ||
128 | memset (&dbp->addr, '\0', sizeof (dbp->addr)); | |
129 | dbp->addr.sin_family = AF_INET; | |
3996f34b UD |
130 | |
131 | dbp->addr.sin_addr.s_addr = | |
132 | inetstr2int (serv->ep.ep_val[dbp->current_ep].uaddr); | |
133 | ||
2d7da676 UD |
134 | if (dbp->addr.sin_addr.s_addr == 0) |
135 | return NIS_FAIL; | |
136 | ||
26a60f90 UD |
137 | /* Check, if the host is online and rpc.nisd is running. Much faster |
138 | then the clnt*_create functions: */ | |
139 | if (__pmap_getnisport (&dbp->addr, NIS_PROG, NIS_VERSION, IPPROTO_UDP) == 0) | |
140 | return NIS_RPCERROR; | |
141 | ||
2d7da676 UD |
142 | dbp->socket = RPC_ANYSOCK; |
143 | if (dbp->use_udp) | |
144 | dbp->clnt = clntudp_create (&dbp->addr, NIS_PROG, NIS_VERSION, | |
cc3fa755 | 145 | UDPTIMEOUT, &dbp->socket); |
2d7da676 UD |
146 | else |
147 | dbp->clnt = clnttcp_create (&dbp->addr, NIS_PROG, NIS_VERSION, | |
148 | &dbp->socket, 0, 0); | |
3996f34b | 149 | |
2d7da676 UD |
150 | if (dbp->clnt == NULL) |
151 | return NIS_RPCERROR; | |
3996f34b | 152 | |
cc3fa755 | 153 | clnt_control (dbp->clnt, CLSET_TIMEOUT, (caddr_t)&RPCTIMEOUT); |
2d7da676 UD |
154 | /* If the program exists, close the socket */ |
155 | if (fcntl (dbp->socket, F_SETFD, 1) == -1) | |
a18f73be | 156 | perror ("fcntl: F_SETFD"); |
3996f34b | 157 | |
2d7da676 UD |
158 | if (dbp->use_auth) |
159 | { | |
e852e889 | 160 | if (serv->key_type == NIS_PK_DH) |
e61abf83 | 161 | { |
2d7da676 UD |
162 | char netname[MAXNETNAMELEN+1]; |
163 | char *p; | |
3996f34b | 164 | |
2d7da676 UD |
165 | p = stpcpy (netname, "unix."); |
166 | strncpy (p, serv->name,MAXNETNAMELEN-5); | |
167 | netname[MAXNETNAMELEN] = '\0'; | |
168 | p = strchr (netname, '.'); | |
169 | *p = '@'; | |
170 | dbp->clnt->cl_auth = | |
171 | authdes_pk_create (netname, &serv->pkey, 300, NULL, NULL); | |
172 | if (!dbp->clnt->cl_auth) | |
173 | dbp->clnt->cl_auth = authunix_create_default (); | |
e61abf83 | 174 | } |
2d7da676 | 175 | else |
2d7da676 UD |
176 | dbp->clnt->cl_auth = authunix_create_default (); |
177 | dbp->use_auth = TRUE; | |
178 | } | |
3996f34b | 179 | |
2d7da676 UD |
180 | return NIS_SUCCESS; |
181 | } | |
26dee9c4 | 182 | |
e852e889 | 183 | nis_error |
a1129917 UD |
184 | __nisbind_create (dir_binding *dbp, const nis_server *serv_val, |
185 | unsigned int serv_len, unsigned int flags) | |
2d7da676 | 186 | { |
d6db1d53 | 187 | dbp->clnt = NULL; |
3996f34b | 188 | |
2d7da676 | 189 | dbp->server_len = serv_len; |
d6db1d53 | 190 | dbp->server_val = (nis_server *)serv_val; |
3996f34b UD |
191 | |
192 | if (flags & USE_DGRAM) | |
193 | dbp->use_udp = TRUE; | |
194 | else | |
195 | dbp->use_udp = FALSE; | |
196 | ||
197 | if (flags & NO_AUTHINFO) | |
198 | dbp->use_auth = FALSE; | |
199 | else | |
200 | dbp->use_auth = TRUE; | |
201 | ||
202 | if (flags & MASTER_ONLY) | |
203 | dbp->master_only = TRUE; | |
204 | else | |
205 | dbp->master_only = FALSE; | |
206 | ||
26a60f90 | 207 | /* We try the first server */ |
3996f34b UD |
208 | dbp->trys = 1; |
209 | ||
ac9f45cf | 210 | dbp->class = -1; |
e852e889 | 211 | if (__nis_findfastest (dbp) < 1) |
3996f34b | 212 | { |
e852e889 | 213 | __nisbind_destroy (dbp); |
d6db1d53 | 214 | return NIS_NAMEUNREACHABLE; |
3996f34b | 215 | } |
2d7da676 | 216 | |
d6db1d53 | 217 | return NIS_SUCCESS; |
e61abf83 UD |
218 | } |
219 | ||
e852e889 UD |
220 | /* __nisbind_connect (dbp) must be run before calling this function ! |
221 | So we could use the same binding twice */ | |
e61abf83 | 222 | nis_error |
e852e889 | 223 | __do_niscall3 (dir_binding *dbp, u_long prog, xdrproc_t xargs, caddr_t req, |
a1129917 | 224 | xdrproc_t xres, caddr_t resp, unsigned int flags, nis_cb *cb) |
e61abf83 | 225 | { |
2d7da676 UD |
226 | enum clnt_stat result; |
227 | nis_error retcode; | |
2d7da676 | 228 | |
e852e889 | 229 | if (dbp == NULL) |
a5a0310d | 230 | return NIS_NAMEUNREACHABLE; |
e61abf83 | 231 | |
2d7da676 | 232 | do |
43b0e40f | 233 | { |
2d7da676 | 234 | again: |
e852e889 | 235 | result = clnt_call (dbp->clnt, prog, xargs, req, xres, resp, RPCTIMEOUT); |
3996f34b | 236 | |
43b0e40f | 237 | if (result != RPC_SUCCESS) |
e852e889 | 238 | retcode = NIS_RPCERROR; |
43b0e40f | 239 | else |
2d7da676 UD |
240 | { |
241 | switch (prog) | |
242 | { | |
650425ce UD |
243 | case NIS_IBLIST: |
244 | if ((((nis_result *)resp)->status == NIS_CBRESULTS) && | |
245 | (cb != NULL)) | |
246 | { | |
e852e889 | 247 | __nis_do_callback(dbp, &((nis_result *)resp)->cookie, cb); |
650425ce UD |
248 | break; |
249 | } | |
e852e889 UD |
250 | /* Yes, the missing break is correct. If we doesn't have to |
251 | start a callback, look if we have to search another server */ | |
2d7da676 UD |
252 | case NIS_LOOKUP: |
253 | case NIS_ADD: | |
254 | case NIS_MODIFY: | |
255 | case NIS_REMOVE: | |
2d7da676 UD |
256 | case NIS_IBADD: |
257 | case NIS_IBMODIFY: | |
258 | case NIS_IBREMOVE: | |
259 | case NIS_IBFIRST: | |
260 | case NIS_IBNEXT: | |
e852e889 | 261 | if ((((nis_result *)resp)->status == NIS_SYSTEMERROR) || |
650425ce UD |
262 | (((nis_result *)resp)->status == NIS_NOSUCHNAME) || |
263 | (((nis_result *)resp)->status == NIS_NOT_ME)) | |
3996f34b | 264 | { |
e852e889 | 265 | if (__nisbind_next (dbp) == NIS_SUCCESS) |
650425ce | 266 | { |
e852e889 | 267 | while (__nisbind_connect (dbp) != NIS_SUCCESS) |
650425ce | 268 | { |
e852e889 | 269 | if (__nisbind_next (dbp) != NIS_SUCCESS) |
650425ce | 270 | return NIS_SUCCESS; |
650425ce UD |
271 | } |
272 | } | |
273 | else | |
274 | break; /* No more servers to search in */ | |
2d7da676 | 275 | goto again; |
3996f34b | 276 | } |
a5a0310d | 277 | break; |
2d7da676 | 278 | case NIS_FINDDIRECTORY: |
e852e889 | 279 | if ((((fd_result *)resp)->status == NIS_SYSTEMERROR) || |
650425ce UD |
280 | (((fd_result *)resp)->status == NIS_NOSUCHNAME) || |
281 | (((fd_result *)resp)->status == NIS_NOT_ME)) | |
3996f34b | 282 | { |
e852e889 | 283 | if (__nisbind_next (dbp) == NIS_SUCCESS) |
650425ce | 284 | { |
e852e889 | 285 | while (__nisbind_connect (dbp) != NIS_SUCCESS) |
650425ce | 286 | { |
e852e889 UD |
287 | if (__nisbind_next (dbp) != NIS_SUCCESS) |
288 | return NIS_SUCCESS; | |
650425ce UD |
289 | } |
290 | } | |
291 | else | |
292 | break; /* No more servers to search in */ | |
2d7da676 | 293 | goto again; |
3996f34b | 294 | } |
2d7da676 UD |
295 | break; |
296 | case NIS_DUMPLOG: /* log_result */ | |
297 | case NIS_DUMP: | |
e852e889 | 298 | if ((((log_result *)resp)->lr_status == NIS_SYSTEMERROR) || |
650425ce UD |
299 | (((log_result *)resp)->lr_status == NIS_NOSUCHNAME) || |
300 | (((log_result *)resp)->lr_status == NIS_NOT_ME)) | |
3996f34b | 301 | { |
e852e889 | 302 | if (__nisbind_next (dbp) == NIS_SUCCESS) |
650425ce | 303 | { |
e852e889 | 304 | while (__nisbind_connect (dbp) != NIS_SUCCESS) |
650425ce | 305 | { |
e852e889 UD |
306 | if (__nisbind_next (dbp) != NIS_SUCCESS) |
307 | return NIS_SUCCESS; | |
650425ce UD |
308 | } |
309 | } | |
310 | else | |
311 | break; /* No more servers to search in */ | |
3996f34b UD |
312 | goto again; |
313 | } | |
2d7da676 | 314 | break; |
2d7da676 UD |
315 | default: |
316 | break; | |
317 | } | |
2d7da676 UD |
318 | retcode = NIS_SUCCESS; |
319 | } | |
43b0e40f | 320 | } |
2d7da676 | 321 | while ((flags & HARD_LOOKUP) && retcode == NIS_RPCERROR); |
3996f34b UD |
322 | |
323 | return retcode; | |
43b0e40f UD |
324 | } |
325 | ||
e852e889 UD |
326 | nis_error |
327 | __do_niscall2 (const nis_server *server, u_int server_len, u_long prog, | |
328 | xdrproc_t xargs, caddr_t req, xdrproc_t xres, caddr_t resp, | |
a1129917 | 329 | unsigned int flags, nis_cb *cb) |
e852e889 UD |
330 | { |
331 | dir_binding dbp; | |
332 | nis_error status; | |
333 | ||
334 | if (flags & MASTER_ONLY) | |
335 | server_len = 1; | |
336 | ||
337 | status = __nisbind_create (&dbp, server, server_len, flags); | |
338 | if (status != NIS_SUCCESS) | |
339 | return status; | |
340 | ||
341 | while (__nisbind_connect (&dbp) != NIS_SUCCESS) | |
342 | { | |
343 | if (__nisbind_next (&dbp) != NIS_SUCCESS) | |
344 | return NIS_NAMEUNREACHABLE; | |
345 | } | |
346 | ||
347 | status = __do_niscall3 (&dbp, prog, xargs, req, xres, resp, flags, cb); | |
348 | ||
349 | __nisbind_destroy (&dbp); | |
350 | ||
351 | return status; | |
352 | ||
353 | } | |
354 | ||
43b0e40f | 355 | static directory_obj * |
e852e889 | 356 | rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status) |
43b0e40f | 357 | { |
2d7da676 UD |
358 | fd_result *fd_res; |
359 | XDR xdrs; | |
43b0e40f | 360 | |
26a60f90 | 361 | switch (nis_dir_cmp (name, dir->do_name)) |
43b0e40f UD |
362 | { |
363 | case SAME_NAME: | |
3996f34b | 364 | *status = NIS_SUCCESS; |
43b0e40f UD |
365 | return dir; |
366 | case NOT_SEQUENTIAL: | |
367 | /* NOT_SEQUENTIAL means, go one up and try it there ! */ | |
368 | case HIGHER_NAME: | |
369 | { /* We need data from a parent domain */ | |
370 | directory_obj *obj; | |
371 | char ndomain [strlen (name) + 3]; | |
372 | ||
373 | nis_domain_of_r (dir->do_name, ndomain, sizeof (ndomain)); | |
374 | ||
375 | /* The root server of our domain is a replica of the parent | |
376 | domain ! (Now I understand why a root server must be a | |
377 | replica of the parent domain) */ | |
2d7da676 | 378 | fd_res = __nis_finddirectory (dir, ndomain); |
3996f34b | 379 | *status = fd_res->status; |
2d7da676 UD |
380 | if (fd_res->status != NIS_SUCCESS) |
381 | { | |
26a60f90 | 382 | /* Try the current directory obj, maybe it works */ |
af6f3906 | 383 | __free_fdresult (fd_res); |
26a60f90 | 384 | return dir; |
2d7da676 | 385 | } |
2d7da676 UD |
386 | obj = calloc(1, sizeof(directory_obj)); |
387 | xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val, | |
388 | fd_res->dir_data.dir_data_len, XDR_DECODE); | |
91eee4dd | 389 | _xdr_directory_obj(&xdrs, obj); |
2d7da676 | 390 | xdr_destroy(&xdrs); |
dfd2257a | 391 | __free_fdresult (fd_res); |
43b0e40f UD |
392 | if (obj != NULL) |
393 | { | |
394 | /* We have found a NIS+ server serving ndomain, now | |
395 | let us search for "name" */ | |
396 | nis_free_directory (dir); | |
e852e889 | 397 | return rec_dirsearch (name, obj, status); |
43b0e40f UD |
398 | } |
399 | else | |
400 | { | |
401 | /* Ups, very bad. Are we already the root server ? */ | |
402 | nis_free_directory (dir); | |
403 | return NULL; | |
404 | } | |
405 | } | |
2d7da676 | 406 | break; |
43b0e40f UD |
407 | case LOWER_NAME: |
408 | { | |
409 | directory_obj *obj; | |
a53bad16 UD |
410 | size_t namelen = strlen (name); |
411 | char leaf [namelen + 3]; | |
412 | char domain [namelen + 3]; | |
413 | char ndomain [namelen + 3]; | |
714a562f | 414 | char *cp; |
26a60f90 UD |
415 | u_int run = 0; |
416 | ||
417 | strcpy (domain, name); | |
3996f34b | 418 | |
43b0e40f UD |
419 | do |
420 | { | |
a53bad16 | 421 | if (domain[0] == '\0') |
43b0e40f UD |
422 | { |
423 | nis_free_directory (dir); | |
424 | return NULL; | |
425 | } | |
426 | nis_leaf_of_r (domain, leaf, sizeof (leaf)); | |
427 | nis_domain_of_r (domain, ndomain, sizeof (ndomain)); | |
428 | strcpy (domain, ndomain); | |
26a60f90 | 429 | ++run; |
43b0e40f UD |
430 | } |
431 | while (nis_dir_cmp (domain, dir->do_name) != SAME_NAME); | |
26a60f90 UD |
432 | |
433 | if (run == 1) | |
434 | { | |
435 | /* We have found the directory above. Use it. */ | |
436 | return dir; | |
437 | } | |
438 | ||
714a562f UD |
439 | cp = strchr (leaf, '\0'); |
440 | *cp++ = '.'; | |
441 | strcpy (cp, domain); | |
3996f34b | 442 | |
2d7da676 | 443 | fd_res = __nis_finddirectory (dir, leaf); |
3996f34b | 444 | *status = fd_res->status; |
2d7da676 | 445 | if (fd_res->status != NIS_SUCCESS) |
43b0e40f | 446 | { |
26a60f90 | 447 | /* Try the current directory object, maybe it works */ |
af6f3906 | 448 | __free_fdresult (fd_res); |
26a60f90 | 449 | return dir; |
2d7da676 | 450 | } |
2d7da676 UD |
451 | obj = calloc(1, sizeof(directory_obj)); |
452 | xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val, | |
453 | fd_res->dir_data.dir_data_len, XDR_DECODE); | |
91eee4dd | 454 | _xdr_directory_obj(&xdrs, obj); |
2d7da676 | 455 | xdr_destroy(&xdrs); |
dfd2257a | 456 | __free_fdresult (fd_res); |
2d7da676 UD |
457 | if (obj != NULL) |
458 | { | |
459 | /* We have found a NIS+ server serving ndomain, now | |
460 | let us search for "name" */ | |
461 | nis_free_directory (dir); | |
e852e889 | 462 | return rec_dirsearch (name, obj, status); |
43b0e40f UD |
463 | } |
464 | } | |
2d7da676 | 465 | break; |
43b0e40f UD |
466 | case BAD_NAME: |
467 | nis_free_directory (dir); | |
3996f34b | 468 | *status = NIS_BADNAME; |
43b0e40f UD |
469 | return NULL; |
470 | } | |
471 | nis_free_directory (dir); | |
3996f34b | 472 | *status = NIS_FAIL; |
43b0e40f UD |
473 | return NULL; |
474 | } | |
475 | ||
26a60f90 UD |
476 | /* We try to query the current server for the searched object, |
477 | maybe he know about it ? */ | |
478 | static directory_obj * | |
e852e889 | 479 | first_shoot (const_nis_name name, directory_obj *dir) |
26a60f90 UD |
480 | { |
481 | directory_obj *obj; | |
482 | fd_result *fd_res; | |
483 | XDR xdrs; | |
484 | char domain [strlen (name) + 3]; | |
485 | ||
486 | if (nis_dir_cmp (name, dir->do_name) == SAME_NAME) | |
487 | return dir; | |
488 | ||
489 | nis_domain_of_r (name, domain, sizeof (domain)); | |
490 | ||
491 | if (nis_dir_cmp (domain, dir->do_name) == SAME_NAME) | |
492 | return dir; | |
493 | ||
494 | fd_res = __nis_finddirectory (dir, domain); | |
495 | if (fd_res->status != NIS_SUCCESS) | |
496 | { | |
497 | __free_fdresult (fd_res); | |
498 | return NULL; | |
499 | } | |
500 | obj = calloc(1, sizeof(directory_obj)); | |
501 | if (obj == NULL) | |
502 | return NULL; | |
503 | xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val, | |
504 | fd_res->dir_data.dir_data_len, XDR_DECODE); | |
91eee4dd UD |
505 | _xdr_directory_obj (&xdrs, obj); |
506 | xdr_destroy (&xdrs); | |
26a60f90 UD |
507 | __free_fdresult (fd_res); |
508 | if (obj != NULL) | |
509 | { | |
510 | nis_free_directory (dir); | |
511 | return obj; | |
512 | } | |
513 | return NULL; | |
514 | } | |
515 | ||
43b0e40f | 516 | nis_error |
e852e889 | 517 | __nisfind_server (const_nis_name name, directory_obj **dir) |
43b0e40f | 518 | { |
2d7da676 UD |
519 | if (name == NULL) |
520 | return NIS_BADNAME; | |
43b0e40f | 521 | |
e852e889 | 522 | #if 0 |
ac9f45cf UD |
523 | /* Search in local cache. In the moment, we ignore the fastest server */ |
524 | if (!(flags & NO_CACHE)) | |
525 | dir = __nis_cache_search (name, flags, &cinfo); | |
e852e889 | 526 | #endif |
ac9f45cf | 527 | |
e852e889 | 528 | if (*dir == NULL) |
43b0e40f | 529 | { |
3996f34b | 530 | nis_error status; |
26a60f90 UD |
531 | directory_obj *obj; |
532 | ||
e852e889 UD |
533 | *dir = readColdStartFile (); |
534 | if (*dir == NULL) /* No /var/nis/NIS_COLD_START->no NIS+ installed */ | |
535 | return NIS_UNAVAIL; | |
3996f34b | 536 | |
26a60f90 | 537 | /* Try at first, if servers in "dir" know our object */ |
e852e889 | 538 | obj = first_shoot (name, *dir); |
26a60f90 | 539 | if (obj == NULL) |
a788b6c2 | 540 | { |
e852e889 UD |
541 | *dir = rec_dirsearch (name, *dir, &status); |
542 | if (*dir == NULL) | |
543 | return status; | |
a788b6c2 | 544 | } |
26a60f90 | 545 | else |
e852e889 | 546 | *dir = obj; |
43b0e40f | 547 | } |
43b0e40f | 548 | |
e852e889 UD |
549 | return NIS_SUCCESS; |
550 | } | |
551 | ||
552 | nis_error | |
553 | __do_niscall (const_nis_name name, u_long prog, xdrproc_t xargs, | |
a1129917 | 554 | caddr_t req, xdrproc_t xres, caddr_t resp, unsigned int flags, |
e852e889 UD |
555 | nis_cb *cb) |
556 | { | |
557 | nis_error retcode; | |
558 | dir_binding bptr; | |
559 | directory_obj *dir = NULL; | |
560 | nis_server *server; | |
561 | u_int server_len; | |
562 | int saved_errno = errno; | |
563 | ||
564 | retcode = __nisfind_server (name, &dir); | |
565 | if (retcode != NIS_SUCCESS) | |
566 | return retcode; | |
567 | ||
3996f34b | 568 | if (flags & MASTER_ONLY) |
2d7da676 UD |
569 | { |
570 | server = dir->do_servers.do_servers_val; | |
571 | server_len = 1; | |
572 | } | |
573 | else | |
574 | { | |
575 | server = dir->do_servers.do_servers_val; | |
576 | server_len = dir->do_servers.do_servers_len; | |
577 | } | |
3996f34b | 578 | |
e852e889 UD |
579 | retcode = __nisbind_create (&bptr, server, server_len, flags); |
580 | if (retcode == NIS_SUCCESS) | |
581 | { | |
582 | while (__nisbind_connect (&bptr) != NIS_SUCCESS) | |
583 | { | |
584 | if (__nisbind_next (&bptr) != NIS_SUCCESS) | |
585 | { | |
586 | nis_free_directory (dir); | |
587 | __nisbind_destroy (&bptr); | |
588 | return NIS_NAMEUNREACHABLE; | |
589 | } | |
590 | } | |
591 | retcode = __do_niscall3 (&bptr, prog, xargs, req, xres, resp, flags, cb); | |
3996f34b | 592 | |
e852e889 UD |
593 | __nisbind_destroy (&bptr); |
594 | } | |
3996f34b | 595 | |
2d7da676 | 596 | nis_free_directory (dir); |
43b0e40f | 597 | |
a788b6c2 UD |
598 | __set_errno (saved_errno); |
599 | ||
2d7da676 | 600 | return retcode; |
e61abf83 | 601 | } |