afce951b |
1 | /* -*-c-*- |
2 | * |
f60a3434 |
3 | * $Id: netg.c,v 1.5 2003/10/12 00:14:55 mdw Exp $ |
afce951b |
4 | * |
5 | * A local database of netgroups |
6 | * |
c758e654 |
7 | * (c) 1998 EBI |
afce951b |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of `become' |
13 | * |
14 | * `Become' is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU General Public License as published by |
16 | * the Free Software Foundation; either version 2 of the License, or |
17 | * (at your option) any later version. |
18 | * |
19 | * `Become' is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU General Public License |
25 | * along with `become'; if not, write to the Free Software Foundation, |
26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
27 | */ |
28 | |
29 | /*----- Revision history --------------------------------------------------* |
30 | * |
31 | * $Log: netg.c,v $ |
f60a3434 |
32 | * Revision 1.5 2003/10/12 00:14:55 mdw |
33 | * Major overhaul. Now uses DSA signatures rather than the bogus symmetric |
34 | * encrypt-and-hope thing. Integrated with mLib and Catacomb. |
35 | * |
a340752b |
36 | * Revision 1.4 1998/04/23 13:24:49 mdw |
37 | * Switch to using the ypstuff interface to YP server. |
38 | * |
c758e654 |
39 | * Revision 1.3 1998/01/12 16:46:17 mdw |
40 | * Fix copyright date. |
41 | * |
42 | * Revision 1.2 1997/08/20 16:19:11 mdw |
8e3b89ae |
43 | * Patch memory leak. Replace `name_reinit' by `name_end' for more sensible |
44 | * restart. Don't try to trace when tracing's turned off. |
45 | * |
afce951b |
46 | * Revision 1.1 1997/08/07 09:45:00 mdw |
47 | * New source file added to maintain a netgroups database. |
48 | * |
49 | */ |
50 | |
51 | /*----- Header files ------------------------------------------------------*/ |
52 | |
53 | /* --- ANSI headers --- */ |
54 | |
55 | #include <ctype.h> |
56 | #include <stdio.h> |
57 | #include <stdlib.h> |
58 | #include <string.h> |
59 | |
60 | /* --- Unix headers --- */ |
61 | |
62 | #include "config.h" |
63 | |
64 | #include <sys/types.h> |
65 | |
afce951b |
66 | #include <netinet/in.h> |
67 | |
68 | #include <arpa/inet.h> |
69 | |
70 | #include <pwd.h> |
71 | #include <netdb.h> |
72 | #include <unistd.h> |
73 | |
f60a3434 |
74 | /* --- mLib headers --- */ |
75 | |
76 | #include <mLib/alloc.h> |
77 | #include <mLib/report.h> |
78 | #include <mLib/sym.h> |
79 | #include <mLib/trace.h> |
80 | |
afce951b |
81 | /* --- Local headers --- */ |
82 | |
83 | #include "become.h" |
84 | #include "config.h" |
85 | #include "netg.h" |
afce951b |
86 | #include "userdb.h" |
a340752b |
87 | #include "ypstuff.h" |
afce951b |
88 | |
89 | /*----- Type definitions --------------------------------------------------*/ |
90 | |
91 | /* --- Quick discussion --- * |
92 | * |
93 | * I've just noticed: netgroups are horrible. They form a directed graph |
94 | * which is really horrible; I'll have to try and turn it into something |
95 | * more sensible (which will essentially involve cutting cycles). |
96 | * |
97 | * The structure looks a little bit like a good ol' List (see Knuth 1 or |
98 | * any decent Lisp manual), but with more information in the cons cells. |
99 | */ |
100 | |
101 | /* --- @netg__cons@ --- */ |
102 | |
103 | typedef struct netg__cons { |
104 | unsigned f; |
105 | union { |
106 | struct netg__cons *cons; |
107 | struct netg__atom *atom; |
108 | } car; |
109 | struct netg__cons *cdr; |
110 | } netg__cons; |
111 | |
112 | enum { |
113 | f_cons = 1, /* The @car@ is a cons cell */ |
114 | f_visit = 2, /* Currently threaded on this cell */ |
115 | f_uncycled = 4 /* Cycles removed from here on in */ |
116 | }; |
117 | |
118 | /* --- @netg__atom@ --- */ |
119 | |
120 | typedef struct netg__atom { |
121 | char *n; /* Unresolved netgroup reference */ |
122 | char *h; /* Matched hostname */ |
123 | char *u; /* Matched user name */ |
124 | char *d; /* Matched domain name */ |
125 | } netg__atom; |
126 | |
127 | /* --- @netg__sym@ --- */ |
128 | |
129 | typedef struct netg__sym { |
130 | sym_base _base; |
131 | netg__cons *cons; |
132 | } netg__sym; |
133 | |
134 | /* --- Token types for the netgroup parser --- */ |
135 | |
136 | enum { |
137 | tok_string = 256, |
138 | tok_eof |
139 | }; |
140 | |
141 | /*----- Static variables --------------------------------------------------*/ |
142 | |
143 | static sym_table netg__table; /* Netgroup table */ |
144 | static sym_iter netg__iter; /* Iterator object for users */ |
145 | |
146 | /*----- Main code ---------------------------------------------------------*/ |
147 | |
148 | /* --- @netg__lex@ --- * |
149 | * |
150 | * Arguments: @const char **p@ = pointer to next unscanned character |
151 | * @char *q@ = pointer to output buffer |
152 | * |
153 | * Returns: Token type (either character code or a magic number). |
154 | * |
155 | * Use: Lexes a netgroups line into tokens. |
156 | */ |
157 | |
158 | static int netg__lex(char **p, char *q) |
159 | { |
160 | /* --- Skip any leading whitespace --- */ |
161 | |
162 | while (isspace((unsigned char)**p)) |
163 | (*p)++; |
164 | |
165 | /* --- Now work out what we've got --- */ |
166 | |
167 | if (**p == 0) |
168 | return (tok_eof); |
169 | if (**p == '(' || **p == ')' || **p == ',') |
170 | return (*(*p)++); |
171 | do |
172 | *q++ = *(*p)++; |
173 | while (**p != 0 && **p != '(' && **p != ')' && |
174 | **p != ',' && !isspace((unsigned char)**p)); |
175 | *q++ = 0; |
176 | return (tok_string); |
177 | } |
178 | |
179 | /* --- @netg__foreach@ --- * |
180 | * |
181 | * Arguments: @int st@ = YP protocol-level status code |
182 | * @char *k@ = pointer to string containing the key |
183 | * @int ksz@ = length of the key string |
184 | * @char *v@ = pointer to string containing the value |
185 | * @int vsz@ = length of the value string |
186 | * @char *data@ = pointer to my data information |
187 | * |
188 | * Returns: Zero to continue, nonzero for no more entries. |
189 | * |
190 | * Use: Handles each incoming netgroup, attaching it to the table. |
191 | */ |
192 | |
193 | static int netg__foreach(int st, char *k, int ksz, |
194 | char *v, int vsz, char *data) |
195 | { |
196 | char *kc, *vc; |
197 | unsigned f; |
198 | netg__sym *sng; |
199 | netg__cons *c, **link; |
200 | char *p; |
201 | int t; |
202 | |
203 | /* --- If something is amiss, then quit now --- */ |
204 | |
205 | if (st != YP_TRUE) |
206 | return (-1); |
207 | |
208 | /* --- Ignore empty lines from the original file --- */ |
209 | |
210 | if (!ksz || !vsz) |
211 | return (0); |
212 | |
213 | /* --- Build my own trashable copies of the key and value --- * |
214 | * |
215 | * Note the oddness when I copy the value string. The extra byte at the |
216 | * beginning allows me to use the same area of memory as an output buffer |
217 | * for the lexer. It must be big enough; the lexer doesn't back up; and |
218 | * that extra byte gives me somewhere to put a terminating null byte. |
219 | */ |
220 | |
221 | kc = xmalloc(ksz + 1); |
222 | memcpy(kc, k, ksz); |
223 | kc[ksz] = 0; |
224 | |
225 | vc = xmalloc(vsz + 2); |
226 | memcpy(vc + 1, v, vsz); |
227 | vc[vsz + 1] = 0; |
228 | |
229 | T( trace(TRACE_DEBUG, "debug: netgroup `%s': `%s'", kc, vc + 1); ) |
230 | |
231 | /* --- Allocate a symbol in my table --- */ |
232 | |
233 | sng = sym_find(&netg__table, kc, -1, sizeof(*sng), &f); |
234 | if (!f) |
235 | sng->cons = 0; |
236 | |
237 | /* --- Run to the end of the list --- */ |
238 | |
239 | for (link = &sng->cons; *link; link = &((*link)->cdr)) |
240 | ; |
241 | |
242 | /* --- Now start the tricky bit --- * |
243 | * |
244 | * I have to start parsing the netgroup value string. Oh, well, it |
245 | * could be worse. |
246 | * |
247 | * The parser is written so as to avoid saying things more often than |
248 | * necessary. This tends to involve @goto@s. You've been warned. |
249 | */ |
250 | |
251 | p = vc + 1; |
252 | t = netg__lex(&p, vc); |
253 | |
254 | for (;;) { |
255 | |
256 | /* --- Start with a fresh cons cell, with an empty atom attached --- */ |
257 | |
258 | c = xmalloc(sizeof(*c)); |
259 | c->car.atom = xmalloc(sizeof(*c->car.atom)); |
260 | |
261 | /* --- Restart here after an error --- * |
262 | * |
263 | * If I restart here, I can avoid freeing the cons cell reallocating |
264 | * it, which is a little silly. |
265 | */ |
266 | |
267 | duff_restart: |
268 | c->car.atom->n = c->car.atom->h = c->car.atom->u = c->car.atom->d = 0; |
269 | c->f = 0; |
270 | c->cdr = 0; |
271 | |
272 | /* --- Handle end-of-line --- */ |
273 | |
274 | if (t == tok_eof) |
275 | break; |
276 | |
277 | /* --- Handle a netgroup reference --- */ |
278 | |
279 | if (t == tok_string) { |
280 | T( trace(TRACE_DEBUG, "debug: add reference to `%s'", vc); ) |
281 | c->car.atom->n = xstrdup(vc); |
282 | *link = c; |
283 | link = &c->cdr; |
284 | t = netg__lex(&p, vc); |
285 | continue; |
286 | } |
287 | |
288 | /* --- Parse our merry way through the host--user--domain triple --- */ |
289 | |
290 | if (t != '(') |
291 | goto duff; |
292 | t = netg__lex(&p, vc); |
293 | |
294 | if (t == tok_string) { |
295 | T( trace(TRACE_DEBUG, "debug: add host `%s'", vc); ) |
296 | c->car.atom->h = xstrdup(vc); |
297 | t = netg__lex(&p, vc); |
298 | } |
299 | |
300 | if (t != ',') |
301 | goto duff_paren; |
302 | t = netg__lex(&p, vc); |
303 | |
304 | if (t == tok_string) { |
305 | T( trace(TRACE_DEBUG, "debug: add user `%s'", vc); ) |
306 | c->car.atom->u = xstrdup(vc); |
307 | t = netg__lex(&p, vc); |
308 | } |
309 | |
310 | if (t != ',') |
311 | goto duff_paren; |
312 | t = netg__lex(&p, vc); |
313 | |
314 | if (t == tok_string) { |
315 | T( trace(TRACE_DEBUG, "debug: add domain `%s'", vc); ) |
316 | c->car.atom->d = xstrdup(vc); |
317 | t = netg__lex(&p, vc); |
318 | } |
319 | |
320 | if (t != ')') |
321 | goto duff_paren; |
322 | t = netg__lex(&p, vc); |
323 | |
324 | /* --- Finished that, so insert this cons cell into the list --- */ |
325 | |
326 | *link = c; |
327 | link = &c->cdr; |
328 | continue; |
329 | |
330 | /* --- Tidy up during scanning of a triple --- * |
331 | * |
332 | * I'll search for the closing paren, and hope that I won't miss out too |
333 | * much. |
334 | */ |
335 | |
336 | duff_paren: |
337 | while (t != tok_eof && t != ')') |
338 | t = netg__lex(&p, vc); |
339 | |
340 | /* --- Other syntax oddnesses come out here --- * |
341 | * |
342 | * Snarf the token which caused the error. |
343 | */ |
344 | |
345 | duff: |
346 | moan("syntax error in netgroups line for `%s'", kc); |
347 | if (c->car.atom->n) free(c->car.atom->n); |
348 | if (c->car.atom->h) free(c->car.atom->h); |
349 | if (c->car.atom->u) free(c->car.atom->u); |
350 | if (c->car.atom->d) free(c->car.atom->d); |
351 | t = netg__lex(&p, vc); |
352 | goto duff_restart; |
353 | } |
354 | |
8e3b89ae |
355 | free(c->car.atom); |
356 | free(c); |
afce951b |
357 | free(kc); |
358 | free(vc); |
359 | return (0); |
360 | } |
361 | |
362 | /* --- @netg__dumpGroup@ --- * |
363 | * |
364 | * Arguments: @netg__cons *c@ = pointer to a list head |
365 | * @int lev@ = indentation level |
366 | * |
367 | * Returns: --- |
368 | * |
369 | * Use: Dumps the netgroup given. |
370 | */ |
371 | |
f60a3434 |
372 | #ifndef NTRACE |
afce951b |
373 | |
374 | static void netg__dumpGroup(netg__cons *c, int lev) |
375 | { |
376 | netg__cons *cc; |
377 | |
378 | if (!c) |
379 | return; |
380 | |
381 | /* --- Check for a cycle --- */ |
382 | |
383 | if (c->f & f_visit) { |
384 | trace(TRACE_DEBUG, "debug: %*scycle!", lev * 2, ""); |
385 | return; |
386 | } |
387 | |
388 | /* --- Dump the netgroup --- */ |
389 | |
390 | c->f |= f_visit; |
391 | |
392 | for (cc = c; cc; cc = cc->cdr) { |
393 | if (cc->f & f_cons) { |
394 | trace(TRACE_DEBUG, "debug: %*ssubnetgroup...", lev * 2, ""); |
395 | netg__dumpGroup(cc->car.cons, lev + 1); |
396 | } else if (cc->car.atom->n) { |
397 | trace(TRACE_DEBUG, "debug: %*sunresolved subgroup `%s'", |
398 | lev * 2, "", cc->car.atom->n); |
399 | } else { |
400 | trace(TRACE_DEBUG, "debug: %*s(%s, %s, %s)", lev * 2, "", |
401 | cc->car.atom->h ? cc->car.atom->h : "<all-hosts>", |
402 | cc->car.atom->u ? cc->car.atom->u : "<all-users>", |
403 | cc->car.atom->d ? cc->car.atom->d : "<all-domains>"); |
404 | } |
405 | } |
406 | |
407 | c->f &= ~f_visit; |
408 | } |
409 | |
410 | #endif |
411 | |
412 | /* --- @netg__dump@ --- * |
413 | * |
414 | * Arguments: --- |
415 | * |
416 | * Returns: --- |
417 | * |
418 | * Use: Dumps the netgroups table. |
419 | */ |
420 | |
f60a3434 |
421 | #ifndef NTRACE |
8e3b89ae |
422 | |
afce951b |
423 | static void netg__dump(void) |
424 | { |
425 | sym_iter i; |
426 | netg__sym *sng; |
427 | |
afce951b |
428 | trace(TRACE_DEBUG, "debug: dumping netgroups file"); |
f60a3434 |
429 | for (sym_mkiter(&i, &netg__table); (sng = sym_next(&i)) != 0; ) { |
afce951b |
430 | trace(TRACE_DEBUG, "debug: netgroup `%s'...", sng->_base.name); |
431 | sng->cons->f &= ~f_visit; |
432 | netg__dumpGroup(sng->cons, 1); |
433 | } |
afce951b |
434 | } |
435 | |
8e3b89ae |
436 | #endif |
437 | |
afce951b |
438 | /* --- @netg_iterate@, @netg_iterate_r@ --- * |
439 | * |
440 | * Arguments: @netg_iter *i@ = pointer to a netgroup iterator object |
441 | * |
442 | * Returns: --- |
443 | * |
444 | * Use: Starts iterating over the netgroups. |
445 | */ |
446 | |
447 | void netg_iterate(void) { netg_iterate_r(&netg__iter); } |
f60a3434 |
448 | void netg_iterate_r(netg_iter *i) { sym_mkiter(i, &netg__table); } |
afce951b |
449 | |
450 | /* --- @netg_next@, @netg_next_r@ --- * |
451 | * |
452 | * Arguments: @netg_iter *i@ = pointer to a netgroup iterator object |
453 | * |
454 | * Returns: An opaque pointer to the next item, or null. |
455 | * |
456 | * Use: Returns the next netgroup. |
457 | */ |
458 | |
459 | netg *netg_next(void) { return (netg_next_r(&netg__iter)); } |
460 | netg *netg_next_r(netg_iter *i) { return (sym_next(i)); } |
461 | |
462 | /* --- @netg_name@ --- * |
463 | * |
464 | * Arguments: @netg *n@ = netgroup handle returned by @netg_next@. |
465 | * |
466 | * Returns: A pointer to the name; you may not modify this string. |
467 | * |
468 | * Use: Returns the name of a netgroup. |
469 | */ |
470 | |
471 | const char *netg_name(netg *n) { return (n->_base.name); } |
472 | |
473 | /* --- @netg_scan@ --- * |
474 | * |
475 | * Arguments: @netg *n@ = a netgroup handle returned by @netg_next@ |
476 | * @int (*proc)(netg *n, const char *host, const char *user,@ |
477 | * @const char *domain, void *ctx)@ = function to call |
478 | * for each member. |
479 | * @void *ctx@ = context pointer to pass to @proc@. |
480 | * |
481 | * Returns: Zero if all went well, or the nonzero return value from |
482 | * @proc@. |
483 | * |
484 | * Use: Passes all the members of the netgroup to a given function. |
485 | * The function is given the names, directly from the NIS |
486 | * netgroup map, except that any empty entries are passed as |
487 | * null pointers rather than empty strings. You may not modify |
488 | * any of the strings. The enumeration function, @proc@, may |
489 | * return nonzero to stop itself from being called any more; |
490 | * if this happens, the value it returns becomes the result of |
491 | * this function. If all the items are enumerated OK, this |
492 | * function returns zero. |
493 | */ |
494 | |
495 | static int netg__doScan(netg__cons *c, |
496 | netg *n, |
497 | int (*proc)(netg */*n*/, const char */*host*/, |
498 | const char */*user*/, |
499 | const char */*domain*/, void */*ctx*/), |
500 | void *ctx) |
501 | { |
502 | int e; |
503 | |
504 | while (c) { |
505 | if (c->f & f_cons) |
506 | e = netg__doScan(c->car.cons, n, proc, ctx); |
507 | else |
508 | e = proc(n, c->car.atom->h, c->car.atom->u, c->car.atom->d, ctx); |
509 | if (e) |
510 | return (e); |
511 | c = c->cdr; |
512 | } |
513 | return (0); |
514 | } |
515 | |
516 | int netg_scan(netg *n, |
517 | int (*proc)(netg */*n*/, const char */*host*/, |
518 | const char */*user*/, const char */*domain*/, |
519 | void */*ctx*/), |
520 | void *ctx) |
521 | { |
522 | return (netg__doScan(n->cons, n, proc, ctx)); |
523 | } |
524 | |
525 | /* --- @netg__breakCycle@ --- * |
526 | * |
527 | * Arguments: @netg__cons *c@ = pointer to a list |
528 | * |
529 | * Returns: --- |
530 | * |
531 | * Use: Scans the given list (recursively) and breaks any cycles it |
532 | * finds. |
533 | */ |
534 | |
535 | static void netg__breakCycle(netg__cons *c) |
536 | { |
537 | netg__cons *cc; |
538 | |
539 | if (!c || c->f & f_uncycled) |
540 | return; |
541 | |
542 | c->f |= f_visit; |
543 | for (cc = c; cc; cc = cc->cdr) { |
544 | if (~cc->f & f_cons) |
545 | continue; |
546 | if (cc->car.cons->f & f_visit) { |
547 | T( trace(TRACE_DEBUG, "debug: cycle in netgroups"); ) |
548 | cc->car.cons = 0; |
549 | } else |
550 | netg__breakCycle(cc->car.cons); |
551 | } |
552 | c->f &= ~f_visit; |
553 | c->f |= f_uncycled; |
554 | } |
555 | |
556 | /* --- @netg_init@ --- * |
557 | * |
558 | * Arguments: --- |
559 | * |
560 | * Returns: --- |
561 | * |
562 | * Use: Reads the netgroup database and turns it into something nice. |
563 | */ |
564 | |
565 | void netg_init(void) |
566 | { |
afce951b |
567 | /* --- Initialise my symbol table --- */ |
568 | |
f60a3434 |
569 | sym_create(&netg__table); |
afce951b |
570 | |
571 | /* --- Bind myself unto a YP server --- */ |
572 | |
a340752b |
573 | ypstuff_bind(); |
574 | if (!yp_domain) |
afce951b |
575 | return; |
576 | |
577 | /* --- Now try to read all the netgroup entries --- */ |
578 | |
579 | { |
580 | static struct ypall_callback ncb = { netg__foreach, 0 }; |
a340752b |
581 | yp_all(yp_domain, "netgroup", &ncb); |
afce951b |
582 | } |
583 | |
afce951b |
584 | /* --- Dump the table --- */ |
585 | |
586 | IF_TRACING(TRACE_DEBUG, netg__dump(); ) |
587 | |
588 | /* --- Now resolve all the remaining references --- */ |
589 | |
590 | { |
591 | sym_iter i; |
592 | netg__sym *sng, *ng; |
593 | netg__cons *c; |
594 | netg__atom *a; |
595 | |
f60a3434 |
596 | for (sym_mkiter(&i, &netg__table); (sng = sym_next(&i)) != 0; ) { |
afce951b |
597 | for (c = sng->cons; c; c = c->cdr) { |
598 | if ((c->f & f_cons) == 0 && c->car.atom->n) { |
599 | a = c->car.atom; |
600 | ng = sym_find(&netg__table, a->n, -1, 0, 0); |
601 | if (!ng) { |
602 | moan("undefined netgroup `%s' (ignored)", a->n); |
603 | c->car.atom = 0; |
604 | } else { |
605 | c->car.cons = ng->cons; |
606 | c->f |= f_cons; |
607 | } |
608 | free(a->n); |
609 | free(a); |
610 | } |
611 | } |
612 | } |
613 | } |
614 | |
615 | /* --- Remove cycles in the netgroups table --- */ |
616 | |
617 | { |
618 | sym_iter i; |
619 | netg__sym *sng; |
620 | |
f60a3434 |
621 | for (sym_mkiter(&i, &netg__table); (sng = sym_next(&i)) != 0; ) |
afce951b |
622 | sng->cons->f &= ~f_uncycled; |
f60a3434 |
623 | for (sym_mkiter(&i, &netg__table); (sng = sym_next(&i)) != 0; ) |
afce951b |
624 | netg__breakCycle(sng->cons); |
625 | } |
626 | |
627 | /* --- Dump the table again --- */ |
628 | |
629 | IF_TRACING(TRACE_DEBUG, netg__dump(); ) |
630 | } |
631 | |
8e3b89ae |
632 | /* --- @netg_end@ --- * |
afce951b |
633 | * |
634 | * Arguments: --- |
635 | * |
636 | * Returns: --- |
637 | * |
8e3b89ae |
638 | * Use: Empties the netgroups database. |
afce951b |
639 | */ |
640 | |
8e3b89ae |
641 | void netg_end(void) |
afce951b |
642 | { |
643 | sym_iter i; |
644 | netg__sym *sng; |
645 | netg__cons *c, *cc; |
646 | |
647 | /* --- Remove all the old netgroups rubbish --- */ |
648 | |
f60a3434 |
649 | for (sym_mkiter(&i, &netg__table); (sng = sym_next(&i)) != 0; ) { |
afce951b |
650 | c = sng->cons; |
651 | while (c) { |
652 | cc = c->cdr; |
653 | if (~c->f & f_cons) { |
654 | if (c->car.atom->n) free(c->car.atom->n); |
655 | if (c->car.atom->h) free(c->car.atom->h); |
656 | if (c->car.atom->u) free(c->car.atom->u); |
657 | if (c->car.atom->d) free(c->car.atom->d); |
8e3b89ae |
658 | free(c->car.atom); |
afce951b |
659 | } |
660 | free(c); |
661 | c = cc; |
662 | } |
663 | sym_remove(&netg__table, sng); |
664 | } |
665 | |
f60a3434 |
666 | sym_destroy(&netg__table); |
afce951b |
667 | } |
668 | |
669 | /*----- Test driver -------------------------------------------------------*/ |
670 | |
671 | #ifdef TEST_RIG |
672 | |
673 | int scanner(netg *n, const char *h, const char *u, const char *d, void *c) |
674 | { |
675 | fprintf(stderr, " %s, %s, %s\n", |
676 | h ? h : "<any>", u ? u : "<any>", d ? d : "<any>"); |
677 | return (0); |
678 | } |
679 | |
680 | int main(void) |
681 | { |
682 | netg *n; |
683 | ego("netg-test"); |
684 | traceon(stderr, TRACE_ALL); |
685 | netg_init(); |
686 | for (netg_iterate(); (n = netg_next()) != 0; ) { |
687 | fprintf(stderr, "netgroup %s\n", netg_name(n)); |
688 | netg_scan(n, scanner, 0); |
689 | } |
690 | return (0); |
691 | } |
692 | |
693 | #endif |
694 | |
695 | /*----- That's all, folks -------------------------------------------------*/ |