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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 #undef MIN
00226 #define MIN(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); ((__a > __b) ? __b : __a);})
00227 #undef MAX
00228 #define MAX(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); ((__a < __b) ? __b : __a);})
00229
00230
00231
00232
00233
00234
00235
00236
00237
00238 int ast_base64encode(char *dst, const unsigned char *src, int srclen, int max);
00239
00240
00241
00242
00243
00244
00245
00246
00247
00248
00249 int ast_base64decode(unsigned char *dst, const char *src, int max);
00250
00251
00252
00253
00254
00255
00256
00257
00258
00259
00260
00261
00262
00263
00264
00265
00266
00267
00268
00269 char *ast_uri_encode(const char *string, char *outbuf, int buflen, int do_special_char);
00270
00271
00272
00273
00274 void ast_uri_decode(char *s);
00275
00276
00277
00278
00279
00280
00281
00282
00283
00284
00285
00286
00287 char *ast_escape_quoted(const char *string, char *outbuf, int buflen);
00288
00289 static force_inline void ast_slinear_saturated_add(short *input, short *value)
00290 {
00291 int res;
00292
00293 res = (int) *input + *value;
00294 if (res > 32767)
00295 *input = 32767;
00296 else if (res < -32767)
00297 *input = -32767;
00298 else
00299 *input = (short) res;
00300 }
00301
00302 static force_inline void ast_slinear_saturated_subtract(short *input, short *value)
00303 {
00304 int res;
00305
00306 res = (int) *input - *value;
00307 if (res > 32767)
00308 *input = 32767;
00309 else if (res < -32767)
00310 *input = -32767;
00311 else
00312 *input = (short) res;
00313 }
00314
00315 static force_inline void ast_slinear_saturated_multiply(short *input, short *value)
00316 {
00317 int res;
00318
00319 res = (int) *input * *value;
00320 if (res > 32767)
00321 *input = 32767;
00322 else if (res < -32767)
00323 *input = -32767;
00324 else
00325 *input = (short) res;
00326 }
00327
00328 static force_inline void ast_slinear_saturated_divide(short *input, short *value)
00329 {
00330 *input /= *value;
00331 }
00332
00333 #ifdef localtime_r
00334 #undef localtime_r
00335 #endif
00336 #define localtime_r __dont_use_localtime_r_use_ast_localtime_instead__
00337
00338 int ast_utils_init(void);
00339 int ast_wait_for_input(int fd, int ms);
00340
00341
00342
00343
00344
00345
00346
00347
00348
00349
00350 int ast_carefulwrite(int fd, char *s, int len, int timeoutms);
00351
00352
00353
00354
00355
00356
00357
00358
00359
00360
00361
00362
00363
00364
00365
00366
00367
00368
00369 int ast_careful_fwrite(FILE *f, int fd, const char *s, size_t len, int timeoutms);
00370
00371
00372
00373
00374
00375 #define AST_STACKSIZE (((sizeof(void *) * 8 * 8) - 16) * 1024)
00376
00377 #if defined(LOW_MEMORY)
00378 #define AST_BACKGROUND_STACKSIZE (((sizeof(void *) * 8 * 2) - 16) * 1024)
00379 #else
00380 #define AST_BACKGROUND_STACKSIZE AST_STACKSIZE
00381 #endif
00382
00383 void ast_register_thread(char *name);
00384 void ast_unregister_thread(void *id);
00385
00386 int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *),
00387 void *data, size_t stacksize, const char *file, const char *caller,
00388 int line, const char *start_fn);
00389
00390 int ast_pthread_create_detached_stack(pthread_t *thread, pthread_attr_t *attr, void*(*start_routine)(void *),
00391 void *data, size_t stacksize, const char *file, const char *caller,
00392 int line, const char *start_fn);
00393
00394 #define ast_pthread_create(a, b, c, d) \
00395 ast_pthread_create_stack(a, b, c, d, \
00396 0, __FILE__, __FUNCTION__, __LINE__, #c)
00397
00398 #define ast_pthread_create_detached(a, b, c, d) \
00399 ast_pthread_create_detached_stack(a, b, c, d, \
00400 0, __FILE__, __FUNCTION__, __LINE__, #c)
00401
00402 #define ast_pthread_create_background(a, b, c, d) \
00403 ast_pthread_create_stack(a, b, c, d, \
00404 AST_BACKGROUND_STACKSIZE, \
00405 __FILE__, __FUNCTION__, __LINE__, #c)
00406
00407 #define ast_pthread_create_detached_background(a, b, c, d) \
00408 ast_pthread_create_detached_stack(a, b, c, d, \
00409 AST_BACKGROUND_STACKSIZE, \
00410 __FILE__, __FUNCTION__, __LINE__, #c)
00411
00412
00413
00414
00415
00416
00417
00418
00419
00420 char *ast_process_quotes_and_slashes(char *start, char find, char replace_with);
00421
00422 long int ast_random(void);
00423
00424
00425
00426
00427
00428
00429
00430
00431 #ifdef __AST_DEBUG_MALLOC
00432 static void ast_free_ptr(void *ptr) attribute_unused;
00433 static void ast_free_ptr(void *ptr)
00434 {
00435 ast_free(ptr);
00436 }
00437 #else
00438 #define ast_free free
00439 #define ast_free_ptr ast_free
00440 #endif
00441
00442 #ifndef __AST_DEBUG_MALLOC
00443
00444 #define MALLOC_FAILURE_MSG \
00445 ast_log(LOG_ERROR, "Memory Allocation Failure in function %s at line %d of %s\n", func, lineno, file);
00446
00447
00448
00449
00450
00451
00452
00453
00454 #define ast_malloc(len) \
00455 _ast_malloc((len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00456
00457 AST_INLINE_API(
00458 void * attribute_malloc _ast_malloc(size_t len, const char *file, int lineno, const char *func),
00459 {
00460 void *p;
00461
00462 if (!(p = malloc(len)))
00463 MALLOC_FAILURE_MSG;
00464
00465 return p;
00466 }
00467 )
00468
00469
00470
00471
00472
00473
00474
00475
00476
00477 #define ast_calloc(num, len) \
00478 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00479
00480 AST_INLINE_API(
00481 void * attribute_malloc _ast_calloc(size_t num, size_t len, const char *file, int lineno, const char *func),
00482 {
00483 void *p;
00484
00485 if (!(p = calloc(num, len)))
00486 MALLOC_FAILURE_MSG;
00487
00488 return p;
00489 }
00490 )
00491
00492
00493
00494
00495
00496
00497
00498
00499
00500
00501
00502 #define ast_calloc_cache(num, len) \
00503 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00504
00505
00506
00507
00508
00509
00510
00511
00512
00513 #define ast_realloc(p, len) \
00514 _ast_realloc((p), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00515
00516 AST_INLINE_API(
00517 void * attribute_malloc _ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
00518 {
00519 void *newp;
00520
00521 if (!(newp = realloc(p, len)))
00522 MALLOC_FAILURE_MSG;
00523
00524 return newp;
00525 }
00526 )
00527
00528
00529
00530
00531
00532
00533
00534
00535
00536
00537
00538
00539
00540 #define ast_strdup(str) \
00541 _ast_strdup((str), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00542
00543 AST_INLINE_API(
00544 char * attribute_malloc _ast_strdup(const char *str, const char *file, int lineno, const char *func),
00545 {
00546 char *newstr = NULL;
00547
00548 if (str) {
00549 if (!(newstr = strdup(str)))
00550 MALLOC_FAILURE_MSG;
00551 }
00552
00553 return newstr;
00554 }
00555 )
00556
00557
00558
00559
00560
00561
00562
00563
00564
00565
00566
00567
00568
00569 #define ast_strndup(str, len) \
00570 _ast_strndup((str), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00571
00572 AST_INLINE_API(
00573 char * attribute_malloc _ast_strndup(const char *str, size_t len, const char *file, int lineno, const char *func),
00574 {
00575 char *newstr = NULL;
00576
00577 if (str) {
00578 if (!(newstr = strndup(str, len)))
00579 MALLOC_FAILURE_MSG;
00580 }
00581
00582 return newstr;
00583 }
00584 )
00585
00586
00587
00588
00589
00590
00591
00592
00593
00594 #define ast_asprintf(ret, fmt, ...) \
00595 _ast_asprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, fmt, __VA_ARGS__)
00596
00597 int __attribute__((format(printf, 5, 6)))
00598 _ast_asprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, ...);
00599
00600
00601
00602
00603
00604
00605
00606
00607
00608 #define ast_vasprintf(ret, fmt, ap) \
00609 _ast_vasprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, (fmt), (ap))
00610
00611 AST_INLINE_API(
00612 __attribute__((format(printf, 5, 0)))
00613 int _ast_vasprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, va_list ap),
00614 {
00615 int res;
00616
00617 if ((res = vasprintf(ret, fmt, ap)) == -1)
00618 MALLOC_FAILURE_MSG;
00619
00620 return res;
00621 }
00622 )
00623
00624 #endif
00625
00626 #if !defined(ast_strdupa) && defined(__GNUC__)
00627
00628
00629
00630
00631
00632
00633
00634 #define ast_strdupa(s) \
00635 (__extension__ \
00636 ({ \
00637 const char *__old = (s); \
00638 size_t __len = strlen(__old) + 1; \
00639 char *__new = __builtin_alloca(__len); \
00640 memcpy (__new, __old, __len); \
00641 __new; \
00642 }))
00643 #endif
00644
00645
00646
00647
00648
00649
00650
00651
00652
00653
00654
00655
00656
00657
00658 void ast_enable_packet_fragmentation(int sock);
00659
00660
00661
00662
00663
00664
00665
00666
00667
00668 int ast_mkdir(const char *path, int mode);
00669
00670 #define ARRAY_LEN(a) (size_t) (sizeof(a) / sizeof(0[a]))
00671
00672
00673
00674 struct ast_http_digest {
00675 AST_DECLARE_STRING_FIELDS(
00676 AST_STRING_FIELD(username);
00677 AST_STRING_FIELD(nonce);
00678 AST_STRING_FIELD(uri);
00679 AST_STRING_FIELD(realm);
00680 AST_STRING_FIELD(domain);
00681 AST_STRING_FIELD(response);
00682 AST_STRING_FIELD(cnonce);
00683 AST_STRING_FIELD(opaque);
00684 AST_STRING_FIELD(nc);
00685 );
00686 int qop;
00687 };
00688
00689
00690
00691
00692
00693
00694
00695
00696 int ast_parse_digest(const char *digest, struct ast_http_digest *d, int request, int pedantic);
00697
00698
00699 #ifdef AST_DEVMODE
00700 #define ast_assert(a) _ast_assert(a, # a, __FILE__, __LINE__, __PRETTY_FUNCTION__)
00701 static void force_inline _ast_assert(int condition, const char *condition_str,
00702 const char *file, int line, const char *function)
00703 {
00704 if (__builtin_expect(!condition, 1)) {
00705
00706
00707 ast_log(__LOG_ERROR, file, line, function, "FRACK!, Failed assertion %s (%d)\n",
00708 condition_str, condition);
00709 fprintf(stderr, "FRACK!, Failed assertion %s (%d) at line %d in %s of %s\n",
00710 condition_str, condition, line, function, file);
00711
00712
00713 usleep(1);
00714 #ifdef DO_CRASH
00715 abort();
00716
00717
00718 *((int*)0)=0;
00719 #endif
00720 }
00721 }
00722 #else
00723 #define ast_assert(a)
00724 #endif
00725
00726 #include "asterisk/strings.h"
00727
00728
00729
00730
00731
00732
00733
00734
00735
00736 #define ast_alignof(type) __alignof__(type)
00737
00738
00739
00740
00741
00742
00743
00744
00745
00746
00747
00748
00749
00750
00751
00752
00753
00754
00755
00756 #define ast_align_for(offset, type) (((offset + __alignof__(type) - 1) / __alignof__(type)) * __alignof__(type))
00757
00758
00759
00760
00761
00762
00763
00764
00765
00766
00767
00768
00769
00770
00771
00772
00773
00774
00775
00776
00777
00778
00779 #define ast_make_room_for(offset, type) (((offset + (2 * __alignof__(type) - 1)) / __alignof__(type)) * __alignof__(type))
00780
00781
00782
00783
00784 struct ast_eid {
00785 unsigned char eid[6];
00786 } __attribute__((__packed__));
00787
00788
00789
00790
00791
00792
00793
00794 extern struct ast_eid ast_eid_default;
00795
00796
00797
00798
00799
00800 void ast_set_default_eid(struct ast_eid *eid);
00801
00802
00803
00804
00805
00806 char *ast_eid_to_str(char *s, int maxlen, struct ast_eid *eid);
00807
00808
00809
00810
00811
00812
00813
00814
00815
00816
00817 int ast_str_to_eid(struct ast_eid *eid, const char *s);
00818
00819
00820
00821
00822
00823
00824
00825 int ast_eid_cmp(const struct ast_eid *eid1, const struct ast_eid *eid2);
00826
00827
00828
00829
00830
00831
00832
00833
00834 char *ast_utils_which(const char *binary, char *fullpath, size_t fullpath_size);
00835
00836 #endif