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00023 #ifndef _ASTERISK_UTILS_H
00024 #define _ASTERISK_UTILS_H
00025
00026 #include "asterisk/network.h"
00027
00028 #include <time.h>
00029 #include <unistd.h>
00030 #include <string.h>
00031
00032 #include "asterisk/lock.h"
00033 #include "asterisk/time.h"
00034 #include "asterisk/logger.h"
00035 #include "asterisk/localtime.h"
00036 #include "asterisk/stringfields.h"
00037
00038
00039
00040
00041
00042
00043
00044
00045
00046
00047
00048
00049
00050
00051
00052
00053
00054
00055
00056
00057
00058
00059
00060
00061 extern unsigned int __unsigned_int_flags_dummy;
00062
00063 #define ast_test_flag(p,flag) ({ \
00064 typeof ((p)->flags) __p = (p)->flags; \
00065 typeof (__unsigned_int_flags_dummy) __x = 0; \
00066 (void) (&__p == &__x); \
00067 ((p)->flags & (flag)); \
00068 })
00069
00070 #define ast_set_flag(p,flag) do { \
00071 typeof ((p)->flags) __p = (p)->flags; \
00072 typeof (__unsigned_int_flags_dummy) __x = 0; \
00073 (void) (&__p == &__x); \
00074 ((p)->flags |= (flag)); \
00075 } while(0)
00076
00077 #define ast_clear_flag(p,flag) do { \
00078 typeof ((p)->flags) __p = (p)->flags; \
00079 typeof (__unsigned_int_flags_dummy) __x = 0; \
00080 (void) (&__p == &__x); \
00081 ((p)->flags &= ~(flag)); \
00082 } while(0)
00083
00084 #define ast_copy_flags(dest,src,flagz) do { \
00085 typeof ((dest)->flags) __d = (dest)->flags; \
00086 typeof ((src)->flags) __s = (src)->flags; \
00087 typeof (__unsigned_int_flags_dummy) __x = 0; \
00088 (void) (&__d == &__x); \
00089 (void) (&__s == &__x); \
00090 (dest)->flags &= ~(flagz); \
00091 (dest)->flags |= ((src)->flags & (flagz)); \
00092 } while (0)
00093
00094 #define ast_set2_flag(p,value,flag) do { \
00095 typeof ((p)->flags) __p = (p)->flags; \
00096 typeof (__unsigned_int_flags_dummy) __x = 0; \
00097 (void) (&__p == &__x); \
00098 if (value) \
00099 (p)->flags |= (flag); \
00100 else \
00101 (p)->flags &= ~(flag); \
00102 } while (0)
00103
00104 #define ast_set_flags_to(p,flag,value) do { \
00105 typeof ((p)->flags) __p = (p)->flags; \
00106 typeof (__unsigned_int_flags_dummy) __x = 0; \
00107 (void) (&__p == &__x); \
00108 (p)->flags &= ~(flag); \
00109 (p)->flags |= (value); \
00110 } while (0)
00111
00112
00113
00114
00115
00116
00117
00118 extern uint64_t __unsigned_int_flags_dummy64;
00119
00120 #define ast_test_flag64(p,flag) ({ \
00121 typeof ((p)->flags) __p = (p)->flags; \
00122 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00123 (void) (&__p == &__x); \
00124 ((p)->flags & (flag)); \
00125 })
00126
00127 #define ast_set_flag64(p,flag) do { \
00128 typeof ((p)->flags) __p = (p)->flags; \
00129 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00130 (void) (&__p == &__x); \
00131 ((p)->flags |= (flag)); \
00132 } while(0)
00133
00134 #define ast_clear_flag64(p,flag) do { \
00135 typeof ((p)->flags) __p = (p)->flags; \
00136 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00137 (void) (&__p == &__x); \
00138 ((p)->flags &= ~(flag)); \
00139 } while(0)
00140
00141 #define ast_copy_flags64(dest,src,flagz) do { \
00142 typeof ((dest)->flags) __d = (dest)->flags; \
00143 typeof ((src)->flags) __s = (src)->flags; \
00144 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00145 (void) (&__d == &__x); \
00146 (void) (&__s == &__x); \
00147 (dest)->flags &= ~(flagz); \
00148 (dest)->flags |= ((src)->flags & (flagz)); \
00149 } while (0)
00150
00151 #define ast_set2_flag64(p,value,flag) do { \
00152 typeof ((p)->flags) __p = (p)->flags; \
00153 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00154 (void) (&__p == &__x); \
00155 if (value) \
00156 (p)->flags |= (flag); \
00157 else \
00158 (p)->flags &= ~(flag); \
00159 } while (0)
00160
00161 #define ast_set_flags_to64(p,flag,value) do { \
00162 typeof ((p)->flags) __p = (p)->flags; \
00163 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00164 (void) (&__p == &__x); \
00165 (p)->flags &= ~(flag); \
00166 (p)->flags |= (value); \
00167 } while (0)
00168
00169
00170
00171
00172
00173 #define ast_test_flag_nonstd(p,flag) \
00174 ((p)->flags & (flag))
00175
00176 #define ast_set_flag_nonstd(p,flag) do { \
00177 ((p)->flags |= (flag)); \
00178 } while(0)
00179
00180 #define ast_clear_flag_nonstd(p,flag) do { \
00181 ((p)->flags &= ~(flag)); \
00182 } while(0)
00183
00184 #define ast_copy_flags_nonstd(dest,src,flagz) do { \
00185 (dest)->flags &= ~(flagz); \
00186 (dest)->flags |= ((src)->flags & (flagz)); \
00187 } while (0)
00188
00189 #define ast_set2_flag_nonstd(p,value,flag) do { \
00190 if (value) \
00191 (p)->flags |= (flag); \
00192 else \
00193 (p)->flags &= ~(flag); \
00194 } while (0)
00195
00196 #define AST_FLAGS_ALL UINT_MAX
00197
00198
00199
00200 struct ast_flags {
00201 unsigned int flags;
00202 };
00203
00204
00205
00206 struct ast_flags64 {
00207 uint64_t flags;
00208 };
00209
00210 struct ast_hostent {
00211 struct hostent hp;
00212 char buf[1024];
00213 };
00214
00215
00216 struct hostent *ast_gethostbyname(const char *host, struct ast_hostent *hp);
00217
00218
00219 void ast_md5_hash(char *output, const char *input);
00220
00221 void ast_sha1_hash(char *output, const char *input);
00222
00223 int ast_base64encode_full(char *dst, const unsigned char *src, int srclen, int max, int linebreaks);
00224
00225
00226
00227
00228
00229
00230
00231
00232
00233 int ast_base64encode(char *dst, const unsigned char *src, int srclen, int max);
00234
00235
00236
00237
00238
00239
00240
00241
00242
00243
00244 int ast_base64decode(unsigned char *dst, const char *src, int max);
00245
00246
00247
00248
00249
00250
00251
00252
00253
00254
00255
00256
00257
00258
00259
00260
00261 char *ast_uri_encode(const char *string, char *outbuf, int buflen, int doreserved);
00262
00263
00264
00265
00266 void ast_uri_decode(char *s);
00267
00268 static force_inline void ast_slinear_saturated_add(short *input, short *value)
00269 {
00270 int res;
00271
00272 res = (int) *input + *value;
00273 if (res > 32767)
00274 *input = 32767;
00275 else if (res < -32767)
00276 *input = -32767;
00277 else
00278 *input = (short) res;
00279 }
00280
00281 static force_inline void ast_slinear_saturated_subtract(short *input, short *value)
00282 {
00283 int res;
00284
00285 res = (int) *input - *value;
00286 if (res > 32767)
00287 *input = 32767;
00288 else if (res < -32767)
00289 *input = -32767;
00290 else
00291 *input = (short) res;
00292 }
00293
00294 static force_inline void ast_slinear_saturated_multiply(short *input, short *value)
00295 {
00296 int res;
00297
00298 res = (int) *input * *value;
00299 if (res > 32767)
00300 *input = 32767;
00301 else if (res < -32767)
00302 *input = -32767;
00303 else
00304 *input = (short) res;
00305 }
00306
00307 static force_inline void ast_slinear_saturated_divide(short *input, short *value)
00308 {
00309 *input /= *value;
00310 }
00311
00312 #ifdef localtime_r
00313 #undef localtime_r
00314 #endif
00315 #define localtime_r __dont_use_localtime_r_use_ast_localtime_instead__
00316
00317 int ast_utils_init(void);
00318 int ast_wait_for_input(int fd, int ms);
00319
00320
00321
00322
00323
00324
00325
00326
00327
00328
00329 int ast_carefulwrite(int fd, char *s, int len, int timeoutms);
00330
00331
00332
00333
00334
00335
00336
00337
00338
00339
00340
00341
00342
00343
00344
00345
00346
00347
00348 int ast_careful_fwrite(FILE *f, int fd, const char *s, size_t len, int timeoutms);
00349
00350
00351
00352
00353
00354 #define AST_STACKSIZE (((sizeof(void *) * 8 * 8) - 16) * 1024)
00355
00356 #if defined(LOW_MEMORY)
00357 #define AST_BACKGROUND_STACKSIZE (((sizeof(void *) * 8 * 2) - 16) * 1024)
00358 #else
00359 #define AST_BACKGROUND_STACKSIZE AST_STACKSIZE
00360 #endif
00361
00362 void ast_register_thread(char *name);
00363 void ast_unregister_thread(void *id);
00364
00365 int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *),
00366 void *data, size_t stacksize, const char *file, const char *caller,
00367 int line, const char *start_fn);
00368
00369 int ast_pthread_create_detached_stack(pthread_t *thread, pthread_attr_t *attr, void*(*start_routine)(void *),
00370 void *data, size_t stacksize, const char *file, const char *caller,
00371 int line, const char *start_fn);
00372
00373 #define ast_pthread_create(a, b, c, d) \
00374 ast_pthread_create_stack(a, b, c, d, \
00375 0, __FILE__, __FUNCTION__, __LINE__, #c)
00376
00377 #define ast_pthread_create_detached(a, b, c, d) \
00378 ast_pthread_create_detached_stack(a, b, c, d, \
00379 0, __FILE__, __FUNCTION__, __LINE__, #c)
00380
00381 #define ast_pthread_create_background(a, b, c, d) \
00382 ast_pthread_create_stack(a, b, c, d, \
00383 AST_BACKGROUND_STACKSIZE, \
00384 __FILE__, __FUNCTION__, __LINE__, #c)
00385
00386 #define ast_pthread_create_detached_background(a, b, c, d) \
00387 ast_pthread_create_detached_stack(a, b, c, d, \
00388 AST_BACKGROUND_STACKSIZE, \
00389 __FILE__, __FUNCTION__, __LINE__, #c)
00390
00391
00392
00393
00394
00395
00396
00397
00398
00399 char *ast_process_quotes_and_slashes(char *start, char find, char replace_with);
00400
00401 long int ast_random(void);
00402
00403
00404
00405
00406
00407
00408
00409
00410 #ifdef __AST_DEBUG_MALLOC
00411 static void ast_free_ptr(void *ptr) attribute_unused;
00412 static void ast_free_ptr(void *ptr)
00413 {
00414 ast_free(ptr);
00415 }
00416 #else
00417 #define ast_free free
00418 #define ast_free_ptr ast_free
00419 #endif
00420
00421 #ifndef __AST_DEBUG_MALLOC
00422
00423 #define MALLOC_FAILURE_MSG \
00424 ast_log(LOG_ERROR, "Memory Allocation Failure in function %s at line %d of %s\n", func, lineno, file);
00425
00426
00427
00428
00429
00430
00431
00432
00433 #define ast_malloc(len) \
00434 _ast_malloc((len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00435
00436 AST_INLINE_API(
00437 void * attribute_malloc _ast_malloc(size_t len, const char *file, int lineno, const char *func),
00438 {
00439 void *p;
00440
00441 if (!(p = malloc(len)))
00442 MALLOC_FAILURE_MSG;
00443
00444 return p;
00445 }
00446 )
00447
00448
00449
00450
00451
00452
00453
00454
00455
00456 #define ast_calloc(num, len) \
00457 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00458
00459 AST_INLINE_API(
00460 void * attribute_malloc _ast_calloc(size_t num, size_t len, const char *file, int lineno, const char *func),
00461 {
00462 void *p;
00463
00464 if (!(p = calloc(num, len)))
00465 MALLOC_FAILURE_MSG;
00466
00467 return p;
00468 }
00469 )
00470
00471
00472
00473
00474
00475
00476
00477
00478
00479
00480
00481 #define ast_calloc_cache(num, len) \
00482 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00483
00484
00485
00486
00487
00488
00489
00490
00491
00492 #define ast_realloc(p, len) \
00493 _ast_realloc((p), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00494
00495 AST_INLINE_API(
00496 void * attribute_malloc _ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
00497 {
00498 void *newp;
00499
00500 if (!(newp = realloc(p, len)))
00501 MALLOC_FAILURE_MSG;
00502
00503 return newp;
00504 }
00505 )
00506
00507
00508
00509
00510
00511
00512
00513
00514
00515
00516
00517
00518
00519 #define ast_strdup(str) \
00520 _ast_strdup((str), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00521
00522 AST_INLINE_API(
00523 char * attribute_malloc _ast_strdup(const char *str, const char *file, int lineno, const char *func),
00524 {
00525 char *newstr = NULL;
00526
00527 if (str) {
00528 if (!(newstr = strdup(str)))
00529 MALLOC_FAILURE_MSG;
00530 }
00531
00532 return newstr;
00533 }
00534 )
00535
00536
00537
00538
00539
00540
00541
00542
00543
00544
00545
00546
00547
00548 #define ast_strndup(str, len) \
00549 _ast_strndup((str), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00550
00551 AST_INLINE_API(
00552 char * attribute_malloc _ast_strndup(const char *str, size_t len, const char *file, int lineno, const char *func),
00553 {
00554 char *newstr = NULL;
00555
00556 if (str) {
00557 if (!(newstr = strndup(str, len)))
00558 MALLOC_FAILURE_MSG;
00559 }
00560
00561 return newstr;
00562 }
00563 )
00564
00565
00566
00567
00568
00569
00570
00571
00572
00573 #define ast_asprintf(ret, fmt, ...) \
00574 _ast_asprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, fmt, __VA_ARGS__)
00575
00576 int __attribute__((format(printf, 5, 6)))
00577 _ast_asprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, ...);
00578
00579
00580
00581
00582
00583
00584
00585
00586
00587 #define ast_vasprintf(ret, fmt, ap) \
00588 _ast_vasprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, (fmt), (ap))
00589
00590 AST_INLINE_API(
00591 __attribute__((format(printf, 5, 0)))
00592 int _ast_vasprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, va_list ap),
00593 {
00594 int res;
00595
00596 if ((res = vasprintf(ret, fmt, ap)) == -1)
00597 MALLOC_FAILURE_MSG;
00598
00599 return res;
00600 }
00601 )
00602
00603 #endif
00604
00605 #if !defined(ast_strdupa) && defined(__GNUC__)
00606
00607
00608
00609
00610
00611
00612
00613 #define ast_strdupa(s) \
00614 (__extension__ \
00615 ({ \
00616 const char *__old = (s); \
00617 size_t __len = strlen(__old) + 1; \
00618 char *__new = __builtin_alloca(__len); \
00619 memcpy (__new, __old, __len); \
00620 __new; \
00621 }))
00622 #endif
00623
00624
00625
00626
00627
00628
00629
00630
00631
00632
00633
00634
00635
00636
00637 void ast_enable_packet_fragmentation(int sock);
00638
00639
00640
00641
00642
00643
00644
00645
00646
00647 int ast_mkdir(const char *path, int mode);
00648
00649 #define ARRAY_LEN(a) (sizeof(a) / sizeof(0[a]))
00650
00651
00652
00653 struct ast_http_digest {
00654 AST_DECLARE_STRING_FIELDS(
00655 AST_STRING_FIELD(username);
00656 AST_STRING_FIELD(nonce);
00657 AST_STRING_FIELD(uri);
00658 AST_STRING_FIELD(realm);
00659 AST_STRING_FIELD(domain);
00660 AST_STRING_FIELD(response);
00661 AST_STRING_FIELD(cnonce);
00662 AST_STRING_FIELD(opaque);
00663 AST_STRING_FIELD(nc);
00664 );
00665 int qop;
00666 };
00667
00668
00669
00670
00671
00672
00673
00674
00675 int ast_parse_digest(const char *digest, struct ast_http_digest *d, int request, int pedantic);
00676
00677
00678 #ifdef AST_DEVMODE
00679 #define ast_assert(a) _ast_assert(a, # a, __FILE__, __LINE__, __PRETTY_FUNCTION__)
00680 static void force_inline _ast_assert(int condition, const char *condition_str,
00681 const char *file, int line, const char *function)
00682 {
00683 if (__builtin_expect(!condition, 1)) {
00684
00685
00686 ast_log(__LOG_ERROR, file, line, function, "FRACK!, Failed assertion %s (%d)\n",
00687 condition_str, condition);
00688 fprintf(stderr, "FRACK!, Failed assertion %s (%d) at line %d in %s of %s\n",
00689 condition_str, condition, line, function, file);
00690
00691
00692 usleep(1);
00693 #ifdef DO_CRASH
00694 abort();
00695
00696
00697 *((int*)0)=0;
00698 #endif
00699 }
00700 }
00701 #else
00702 #define ast_assert(a)
00703 #endif
00704
00705 #include "asterisk/strings.h"
00706
00707
00708
00709
00710 struct ast_eid {
00711 unsigned char eid[6];
00712 } __attribute__((__packed__));
00713
00714
00715
00716
00717
00718
00719
00720 extern struct ast_eid ast_eid_default;
00721
00722
00723
00724
00725
00726 void ast_set_default_eid(struct ast_eid *eid);
00727
00728
00729
00730
00731
00732 char *ast_eid_to_str(char *s, int maxlen, struct ast_eid *eid);
00733
00734
00735
00736
00737
00738
00739
00740
00741
00742
00743 int ast_str_to_eid(struct ast_eid *eid, const char *s);
00744
00745
00746
00747
00748
00749
00750
00751 int ast_eid_cmp(const struct ast_eid *eid1, const struct ast_eid *eid2);
00752
00753 #endif