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Commit | Line | Data |
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718e3744 | 1 | /* Community attribute related functions. |
2 | Copyright (C) 1998, 2001 Kunihiro Ishiguro | |
3 | ||
4 | This file is part of GNU Zebra. | |
5 | ||
6 | GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
8 | Free Software Foundation; either version 2, or (at your option) any | |
9 | later version. | |
10 | ||
11 | GNU Zebra is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "hash.h" | |
24 | #include "memory.h" | |
25 | ||
26 | #include "bgpd/bgp_community.h" | |
27 | ||
28 | /* Hash of community attribute. */ | |
730394d9 | 29 | static struct hash *comhash; |
718e3744 | 30 | |
31 | /* Allocate a new communities value. */ | |
94f2b392 | 32 | static struct community * |
33 | community_new (void) | |
718e3744 | 34 | { |
35 | return (struct community *) XCALLOC (MTYPE_COMMUNITY, | |
36 | sizeof (struct community)); | |
37 | } | |
38 | ||
39 | /* Free communities value. */ | |
40 | void | |
41 | community_free (struct community *com) | |
42 | { | |
43 | if (com->val) | |
44 | XFREE (MTYPE_COMMUNITY_VAL, com->val); | |
45 | if (com->str) | |
46 | XFREE (MTYPE_COMMUNITY_STR, com->str); | |
f1aa5d8a DS |
47 | |
48 | if (com->json) | |
49 | { | |
50 | json_object_free(com->json); | |
51 | com->json = NULL; | |
52 | } | |
53 | ||
718e3744 | 54 | XFREE (MTYPE_COMMUNITY, com); |
55 | } | |
56 | ||
57 | /* Add one community value to the community. */ | |
94f2b392 | 58 | static void |
718e3744 | 59 | community_add_val (struct community *com, u_int32_t val) |
60 | { | |
61 | com->size++; | |
62 | if (com->val) | |
63 | com->val = XREALLOC (MTYPE_COMMUNITY_VAL, com->val, com_length (com)); | |
64 | else | |
65 | com->val = XMALLOC (MTYPE_COMMUNITY_VAL, com_length (com)); | |
66 | ||
67 | val = htonl (val); | |
68 | memcpy (com_lastval (com), &val, sizeof (u_int32_t)); | |
69 | } | |
70 | ||
71 | /* Delete one community. */ | |
72 | void | |
73 | community_del_val (struct community *com, u_int32_t *val) | |
74 | { | |
75 | int i = 0; | |
76 | int c = 0; | |
77 | ||
78 | if (! com->val) | |
79 | return; | |
80 | ||
81 | while (i < com->size) | |
82 | { | |
83 | if (memcmp (com->val + i, val, sizeof (u_int32_t)) == 0) | |
84 | { | |
85 | c = com->size -i -1; | |
86 | ||
87 | if (c > 0) | |
4c005e3f | 88 | memmove (com->val + i, com->val + (i + 1), c * sizeof (*val)); |
718e3744 | 89 | |
90 | com->size--; | |
91 | ||
92 | if (com->size > 0) | |
93 | com->val = XREALLOC (MTYPE_COMMUNITY_VAL, com->val, | |
94 | com_length (com)); | |
95 | else | |
96 | { | |
97 | XFREE (MTYPE_COMMUNITY_VAL, com->val); | |
98 | com->val = NULL; | |
99 | } | |
100 | return; | |
101 | } | |
102 | i++; | |
103 | } | |
104 | } | |
105 | ||
106 | /* Delete all communities listed in com2 from com1 */ | |
107 | struct community * | |
108 | community_delete (struct community *com1, struct community *com2) | |
109 | { | |
110 | int i = 0; | |
111 | ||
112 | while(i < com2->size) | |
113 | { | |
114 | community_del_val (com1, com2->val + i); | |
115 | i++; | |
116 | } | |
117 | ||
118 | return com1; | |
119 | } | |
120 | ||
121 | /* Callback function from qsort(). */ | |
94f2b392 | 122 | static int |
718e3744 | 123 | community_compare (const void *a1, const void *a2) |
124 | { | |
125 | u_int32_t v1; | |
126 | u_int32_t v2; | |
127 | ||
128 | memcpy (&v1, a1, sizeof (u_int32_t)); | |
129 | memcpy (&v2, a2, sizeof (u_int32_t)); | |
130 | v1 = ntohl (v1); | |
131 | v2 = ntohl (v2); | |
132 | ||
133 | if (v1 < v2) | |
134 | return -1; | |
135 | if (v1 > v2) | |
136 | return 1; | |
137 | return 0; | |
138 | } | |
139 | ||
140 | int | |
141 | community_include (struct community *com, u_int32_t val) | |
142 | { | |
143 | int i; | |
144 | ||
145 | val = htonl (val); | |
146 | ||
147 | for (i = 0; i < com->size; i++) | |
148 | if (memcmp (&val, com_nthval (com, i), sizeof (u_int32_t)) == 0) | |
149 | return 1; | |
150 | ||
151 | return 0; | |
152 | } | |
153 | ||
5cbea288 | 154 | u_int32_t |
718e3744 | 155 | community_val_get (struct community *com, int i) |
156 | { | |
157 | u_char *p; | |
158 | u_int32_t val; | |
159 | ||
160 | p = (u_char *) com->val; | |
161 | p += (i * 4); | |
162 | ||
163 | memcpy (&val, p, sizeof (u_int32_t)); | |
164 | ||
165 | return ntohl (val); | |
166 | } | |
167 | ||
168 | /* Sort and uniq given community. */ | |
169 | struct community * | |
170 | community_uniq_sort (struct community *com) | |
171 | { | |
172 | int i; | |
173 | struct community *new; | |
174 | u_int32_t val; | |
175 | ||
176 | if (! com) | |
177 | return NULL; | |
178 | ||
179 | new = community_new ();; | |
f1aa5d8a | 180 | new->json = NULL; |
718e3744 | 181 | |
182 | for (i = 0; i < com->size; i++) | |
183 | { | |
184 | val = community_val_get (com, i); | |
185 | ||
186 | if (! community_include (new, val)) | |
187 | community_add_val (new, val); | |
188 | } | |
189 | ||
190 | qsort (new->val, new->size, sizeof (u_int32_t), community_compare); | |
191 | ||
192 | return new; | |
193 | } | |
194 | ||
195 | /* Convert communities attribute to string. | |
196 | ||
197 | For Well-known communities value, below keyword is used. | |
198 | ||
199 | 0x0 "internet" | |
200 | 0xFFFFFF01 "no-export" | |
201 | 0xFFFFFF02 "no-advertise" | |
202 | 0xFFFFFF03 "local-AS" | |
203 | ||
204 | For other values, "AS:VAL" format is used. */ | |
f1aa5d8a DS |
205 | static void |
206 | set_community_string (struct community *com) | |
718e3744 | 207 | { |
208 | int i; | |
209 | char *str; | |
210 | char *pnt; | |
211 | int len; | |
212 | int first; | |
213 | u_int32_t comval; | |
214 | u_int16_t as; | |
215 | u_int16_t val; | |
f1aa5d8a DS |
216 | json_object *json_community_list = NULL; |
217 | json_object *json_string = NULL; | |
718e3744 | 218 | |
b2ceea18 | 219 | if (!com) |
88177fe3 | 220 | return; |
b2ceea18 | 221 | |
f1aa5d8a DS |
222 | com->json = json_object_new_object(); |
223 | json_community_list = json_object_new_array(); | |
224 | ||
718e3744 | 225 | /* When communities attribute is empty. */ |
226 | if (com->size == 0) | |
227 | { | |
228 | str = XMALLOC (MTYPE_COMMUNITY_STR, 1); | |
229 | str[0] = '\0'; | |
f1aa5d8a DS |
230 | |
231 | json_object_string_add(com->json, "string", ""); | |
232 | json_object_object_add(com->json, "list", json_community_list); | |
233 | com->str = str; | |
234 | return; | |
718e3744 | 235 | } |
236 | ||
237 | /* Memory allocation is time consuming work. So we calculate | |
238 | required string length first. */ | |
239 | len = 0; | |
240 | ||
241 | for (i = 0; i < com->size; i++) | |
242 | { | |
243 | memcpy (&comval, com_nthval (com, i), sizeof (u_int32_t)); | |
244 | comval = ntohl (comval); | |
245 | ||
246 | switch (comval) | |
247 | { | |
248 | case COMMUNITY_INTERNET: | |
249 | len += strlen (" internet"); | |
250 | break; | |
251 | case COMMUNITY_NO_EXPORT: | |
252 | len += strlen (" no-export"); | |
253 | break; | |
254 | case COMMUNITY_NO_ADVERTISE: | |
255 | len += strlen (" no-advertise"); | |
256 | break; | |
257 | case COMMUNITY_LOCAL_AS: | |
258 | len += strlen (" local-AS"); | |
259 | break; | |
260 | default: | |
261 | len += strlen (" 65536:65535"); | |
262 | break; | |
263 | } | |
264 | } | |
265 | ||
266 | /* Allocate memory. */ | |
267 | str = pnt = XMALLOC (MTYPE_COMMUNITY_STR, len); | |
268 | first = 1; | |
269 | ||
270 | /* Fill in string. */ | |
271 | for (i = 0; i < com->size; i++) | |
272 | { | |
273 | memcpy (&comval, com_nthval (com, i), sizeof (u_int32_t)); | |
274 | comval = ntohl (comval); | |
275 | ||
276 | if (first) | |
277 | first = 0; | |
278 | else | |
279 | *pnt++ = ' '; | |
280 | ||
281 | switch (comval) | |
282 | { | |
283 | case COMMUNITY_INTERNET: | |
284 | strcpy (pnt, "internet"); | |
285 | pnt += strlen ("internet"); | |
f1aa5d8a DS |
286 | json_string = json_object_new_string("internet"); |
287 | json_object_array_add(json_community_list, json_string); | |
718e3744 | 288 | break; |
289 | case COMMUNITY_NO_EXPORT: | |
290 | strcpy (pnt, "no-export"); | |
291 | pnt += strlen ("no-export"); | |
62d6dca0 | 292 | json_string = json_object_new_string("noExport"); |
f1aa5d8a | 293 | json_object_array_add(json_community_list, json_string); |
718e3744 | 294 | break; |
295 | case COMMUNITY_NO_ADVERTISE: | |
296 | strcpy (pnt, "no-advertise"); | |
297 | pnt += strlen ("no-advertise"); | |
62d6dca0 | 298 | json_string = json_object_new_string("noAdvertise"); |
f1aa5d8a | 299 | json_object_array_add(json_community_list, json_string); |
718e3744 | 300 | break; |
301 | case COMMUNITY_LOCAL_AS: | |
302 | strcpy (pnt, "local-AS"); | |
303 | pnt += strlen ("local-AS"); | |
62d6dca0 | 304 | json_string = json_object_new_string("localAs"); |
f1aa5d8a | 305 | json_object_array_add(json_community_list, json_string); |
718e3744 | 306 | break; |
307 | default: | |
308 | as = (comval >> 16) & 0xFFFF; | |
309 | val = comval & 0xFFFF; | |
aea339f7 | 310 | sprintf (pnt, "%u:%d", as, val); |
f1aa5d8a DS |
311 | json_string = json_object_new_string(pnt); |
312 | json_object_array_add(json_community_list, json_string); | |
718e3744 | 313 | pnt += strlen (pnt); |
314 | break; | |
315 | } | |
316 | } | |
317 | *pnt = '\0'; | |
318 | ||
f1aa5d8a DS |
319 | json_object_string_add(com->json, "string", str); |
320 | json_object_object_add(com->json, "list", json_community_list); | |
321 | com->str = str; | |
718e3744 | 322 | } |
323 | ||
324 | /* Intern communities attribute. */ | |
325 | struct community * | |
326 | community_intern (struct community *com) | |
327 | { | |
328 | struct community *find; | |
329 | ||
330 | /* Assert this community structure is not interned. */ | |
331 | assert (com->refcnt == 0); | |
332 | ||
333 | /* Lookup community hash. */ | |
334 | find = (struct community *) hash_get (comhash, com, hash_alloc_intern); | |
335 | ||
336 | /* Arguemnt com is allocated temporary. So when it is not used in | |
337 | hash, it should be freed. */ | |
338 | if (find != com) | |
339 | community_free (com); | |
340 | ||
341 | /* Increment refrence counter. */ | |
342 | find->refcnt++; | |
343 | ||
344 | /* Make string. */ | |
345 | if (! find->str) | |
f1aa5d8a | 346 | set_community_string (find); |
718e3744 | 347 | |
348 | return find; | |
349 | } | |
350 | ||
351 | /* Free community attribute. */ | |
352 | void | |
f6f434b2 | 353 | community_unintern (struct community **com) |
718e3744 | 354 | { |
355 | struct community *ret; | |
356 | ||
f6f434b2 PJ |
357 | if ((*com)->refcnt) |
358 | (*com)->refcnt--; | |
718e3744 | 359 | |
360 | /* Pull off from hash. */ | |
f6f434b2 | 361 | if ((*com)->refcnt == 0) |
718e3744 | 362 | { |
363 | /* Community value com must exist in hash. */ | |
f6f434b2 | 364 | ret = (struct community *) hash_release (comhash, *com); |
718e3744 | 365 | assert (ret != NULL); |
366 | ||
f6f434b2 PJ |
367 | community_free (*com); |
368 | *com = NULL; | |
718e3744 | 369 | } |
370 | } | |
371 | ||
372 | /* Create new community attribute. */ | |
373 | struct community * | |
5228ad27 | 374 | community_parse (u_int32_t *pnt, u_short length) |
718e3744 | 375 | { |
376 | struct community tmp; | |
377 | struct community *new; | |
378 | ||
379 | /* If length is malformed return NULL. */ | |
380 | if (length % 4) | |
381 | return NULL; | |
382 | ||
383 | /* Make temporary community for hash look up. */ | |
384 | tmp.size = length / 4; | |
5228ad27 | 385 | tmp.val = pnt; |
718e3744 | 386 | |
387 | new = community_uniq_sort (&tmp); | |
388 | ||
389 | return community_intern (new); | |
390 | } | |
391 | ||
392 | struct community * | |
393 | community_dup (struct community *com) | |
394 | { | |
395 | struct community *new; | |
396 | ||
397 | new = XCALLOC (MTYPE_COMMUNITY, sizeof (struct community)); | |
398 | new->size = com->size; | |
399 | if (new->size) | |
400 | { | |
401 | new->val = XMALLOC (MTYPE_COMMUNITY_VAL, com->size * 4); | |
402 | memcpy (new->val, com->val, com->size * 4); | |
403 | } | |
404 | else | |
405 | new->val = NULL; | |
406 | return new; | |
407 | } | |
408 | ||
409 | /* Retrun string representation of communities attribute. */ | |
410 | char * | |
411 | community_str (struct community *com) | |
412 | { | |
b2ceea18 PJ |
413 | if (!com) |
414 | return NULL; | |
f1aa5d8a | 415 | |
718e3744 | 416 | if (! com->str) |
f1aa5d8a | 417 | set_community_string (com); |
718e3744 | 418 | return com->str; |
419 | } | |
420 | ||
421 | /* Make hash value of community attribute. This function is used by | |
422 | hash package.*/ | |
423 | unsigned int | |
424 | community_hash_make (struct community *com) | |
425 | { | |
c76275ee JBD |
426 | unsigned char *pnt = (unsigned char *)com->val; |
427 | int size = com->size * 4; | |
428 | unsigned int key = 0; | |
718e3744 | 429 | int c; |
718e3744 | 430 | |
c76275ee JBD |
431 | for (c = 0; c < size; c += 4) |
432 | { | |
433 | key += pnt[c]; | |
434 | key += pnt[c + 1]; | |
435 | key += pnt[c + 2]; | |
436 | key += pnt[c + 3]; | |
437 | } | |
438 | ||
718e3744 | 439 | return key; |
440 | } | |
441 | ||
442 | int | |
fd79ac91 | 443 | community_match (const struct community *com1, const struct community *com2) |
718e3744 | 444 | { |
445 | int i = 0; | |
446 | int j = 0; | |
447 | ||
448 | if (com1 == NULL && com2 == NULL) | |
449 | return 1; | |
450 | ||
451 | if (com1 == NULL || com2 == NULL) | |
452 | return 0; | |
453 | ||
454 | if (com1->size < com2->size) | |
455 | return 0; | |
456 | ||
457 | /* Every community on com2 needs to be on com1 for this to match */ | |
458 | while (i < com1->size && j < com2->size) | |
459 | { | |
460 | if (memcmp (com1->val + i, com2->val + j, sizeof (u_int32_t)) == 0) | |
461 | j++; | |
462 | i++; | |
463 | } | |
464 | ||
465 | if (j == com2->size) | |
466 | return 1; | |
467 | else | |
468 | return 0; | |
469 | } | |
470 | ||
471 | /* If two aspath have same value then return 1 else return 0. This | |
472 | function is used by hash package. */ | |
473 | int | |
fd79ac91 | 474 | community_cmp (const struct community *com1, const struct community *com2) |
718e3744 | 475 | { |
476 | if (com1 == NULL && com2 == NULL) | |
477 | return 1; | |
478 | if (com1 == NULL || com2 == NULL) | |
479 | return 0; | |
480 | ||
481 | if (com1->size == com2->size) | |
482 | if (memcmp (com1->val, com2->val, com1->size * 4) == 0) | |
483 | return 1; | |
484 | return 0; | |
485 | } | |
486 | ||
487 | /* Add com2 to the end of com1. */ | |
488 | struct community * | |
489 | community_merge (struct community *com1, struct community *com2) | |
490 | { | |
491 | if (com1->val) | |
492 | com1->val = XREALLOC (MTYPE_COMMUNITY_VAL, com1->val, | |
493 | (com1->size + com2->size) * 4); | |
494 | else | |
495 | com1->val = XMALLOC (MTYPE_COMMUNITY_VAL, (com1->size + com2->size) * 4); | |
496 | ||
497 | memcpy (com1->val + com1->size, com2->val, com2->size * 4); | |
498 | com1->size += com2->size; | |
499 | ||
500 | return com1; | |
501 | } | |
502 | ||
503 | /* Community token enum. */ | |
504 | enum community_token | |
505 | { | |
506 | community_token_val, | |
507 | community_token_no_export, | |
508 | community_token_no_advertise, | |
509 | community_token_local_as, | |
510 | community_token_unknown | |
511 | }; | |
512 | ||
513 | /* Get next community token from string. */ | |
94f2b392 | 514 | static const char * |
fd79ac91 | 515 | community_gettoken (const char *buf, enum community_token *token, |
516 | u_int32_t *val) | |
718e3744 | 517 | { |
fd79ac91 | 518 | const char *p = buf; |
718e3744 | 519 | |
520 | /* Skip white space. */ | |
521 | while (isspace ((int) *p)) | |
522 | p++; | |
523 | ||
524 | /* Check the end of the line. */ | |
525 | if (*p == '\0') | |
526 | return NULL; | |
527 | ||
528 | /* Well known community string check. */ | |
529 | if (isalpha ((int) *p)) | |
530 | { | |
531 | if (strncmp (p, "internet", strlen ("internet")) == 0) | |
532 | { | |
533 | *val = COMMUNITY_INTERNET; | |
534 | *token = community_token_no_export; | |
535 | p += strlen ("internet"); | |
536 | return p; | |
537 | } | |
538 | if (strncmp (p, "no-export", strlen ("no-export")) == 0) | |
539 | { | |
540 | *val = COMMUNITY_NO_EXPORT; | |
541 | *token = community_token_no_export; | |
542 | p += strlen ("no-export"); | |
543 | return p; | |
544 | } | |
545 | if (strncmp (p, "no-advertise", strlen ("no-advertise")) == 0) | |
546 | { | |
547 | *val = COMMUNITY_NO_ADVERTISE; | |
548 | *token = community_token_no_advertise; | |
549 | p += strlen ("no-advertise"); | |
550 | return p; | |
551 | } | |
552 | if (strncmp (p, "local-AS", strlen ("local-AS")) == 0) | |
553 | { | |
554 | *val = COMMUNITY_LOCAL_AS; | |
555 | *token = community_token_local_as; | |
556 | p += strlen ("local-AS"); | |
557 | return p; | |
558 | } | |
559 | ||
560 | /* Unknown string. */ | |
561 | *token = community_token_unknown; | |
15aa6a1a | 562 | return NULL; |
718e3744 | 563 | } |
564 | ||
565 | /* Community value. */ | |
566 | if (isdigit ((int) *p)) | |
567 | { | |
568 | int separator = 0; | |
569 | int digit = 0; | |
570 | u_int32_t community_low = 0; | |
571 | u_int32_t community_high = 0; | |
572 | ||
573 | while (isdigit ((int) *p) || *p == ':') | |
574 | { | |
575 | if (*p == ':') | |
576 | { | |
577 | if (separator) | |
578 | { | |
579 | *token = community_token_unknown; | |
15aa6a1a | 580 | return NULL; |
718e3744 | 581 | } |
582 | else | |
583 | { | |
584 | separator = 1; | |
585 | digit = 0; | |
586 | community_high = community_low << 16; | |
587 | community_low = 0; | |
588 | } | |
589 | } | |
590 | else | |
591 | { | |
592 | digit = 1; | |
593 | community_low *= 10; | |
594 | community_low += (*p - '0'); | |
595 | } | |
596 | p++; | |
597 | } | |
598 | if (! digit) | |
599 | { | |
600 | *token = community_token_unknown; | |
15aa6a1a | 601 | return NULL; |
718e3744 | 602 | } |
603 | *val = community_high + community_low; | |
604 | *token = community_token_val; | |
605 | return p; | |
606 | } | |
607 | *token = community_token_unknown; | |
15aa6a1a | 608 | return NULL; |
718e3744 | 609 | } |
610 | ||
611 | /* convert string to community structure */ | |
612 | struct community * | |
fd79ac91 | 613 | community_str2com (const char *str) |
718e3744 | 614 | { |
615 | struct community *com = NULL; | |
616 | struct community *com_sort = NULL; | |
851a1a5c PJ |
617 | u_int32_t val = 0; |
618 | enum community_token token = community_token_unknown; | |
718e3744 | 619 | |
15aa6a1a | 620 | do |
718e3744 | 621 | { |
15aa6a1a PJ |
622 | str = community_gettoken (str, &token, &val); |
623 | ||
718e3744 | 624 | switch (token) |
625 | { | |
626 | case community_token_val: | |
627 | case community_token_no_export: | |
628 | case community_token_no_advertise: | |
629 | case community_token_local_as: | |
630 | if (com == NULL) | |
f1aa5d8a DS |
631 | { |
632 | com = community_new(); | |
633 | com->json = NULL; | |
634 | } | |
718e3744 | 635 | community_add_val (com, val); |
636 | break; | |
637 | case community_token_unknown: | |
638 | default: | |
639 | if (com) | |
640 | community_free (com); | |
542bcb72 | 641 | return NULL; |
718e3744 | 642 | } |
15aa6a1a | 643 | } while (str); |
718e3744 | 644 | |
645 | if (! com) | |
646 | return NULL; | |
647 | ||
648 | com_sort = community_uniq_sort (com); | |
649 | community_free (com); | |
650 | ||
651 | return com_sort; | |
652 | } | |
653 | ||
654 | /* Return communities hash entry count. */ | |
655 | unsigned long | |
66e5cd87 | 656 | community_count (void) |
718e3744 | 657 | { |
658 | return comhash->count; | |
659 | } | |
660 | ||
661 | /* Return communities hash. */ | |
662 | struct hash * | |
94f2b392 | 663 | community_hash (void) |
718e3744 | 664 | { |
665 | return comhash; | |
666 | } | |
667 | ||
668 | /* Initialize comminity related hash. */ | |
669 | void | |
94f2b392 | 670 | community_init (void) |
718e3744 | 671 | { |
ffe11cfb SH |
672 | comhash = hash_create ((unsigned int (*) (void *))community_hash_make, |
673 | (int (*) (const void *, const void *))community_cmp); | |
718e3744 | 674 | } |
228da428 CC |
675 | |
676 | void | |
677 | community_finish (void) | |
678 | { | |
679 | hash_free (comhash); | |
680 | comhash = NULL; | |
681 | } |