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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
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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
00288 int ast_xml_escape(const char *string, char *outbuf, size_t buflen);
00289
00290
00291
00292
00293
00294
00295
00296
00297
00298
00299
00300
00301 char *ast_escape_quoted(const char *string, char *outbuf, int buflen);
00302
00303 static force_inline void ast_slinear_saturated_add(short *input, short *value)
00304 {
00305 int res;
00306
00307 res = (int) *input + *value;
00308 if (res > 32767)
00309 *input = 32767;
00310 else if (res < -32767)
00311 *input = -32767;
00312 else
00313 *input = (short) res;
00314 }
00315
00316 static force_inline void ast_slinear_saturated_subtract(short *input, short *value)
00317 {
00318 int res;
00319
00320 res = (int) *input - *value;
00321 if (res > 32767)
00322 *input = 32767;
00323 else if (res < -32767)
00324 *input = -32767;
00325 else
00326 *input = (short) res;
00327 }
00328
00329 static force_inline void ast_slinear_saturated_multiply(short *input, short *value)
00330 {
00331 int res;
00332
00333 res = (int) *input * *value;
00334 if (res > 32767)
00335 *input = 32767;
00336 else if (res < -32767)
00337 *input = -32767;
00338 else
00339 *input = (short) res;
00340 }
00341
00342 static force_inline void ast_slinear_saturated_divide(short *input, short *value)
00343 {
00344 *input /= *value;
00345 }
00346
00347 #ifdef localtime_r
00348 #undef localtime_r
00349 #endif
00350 #define localtime_r __dont_use_localtime_r_use_ast_localtime_instead__
00351
00352 int ast_utils_init(void);
00353 int ast_wait_for_input(int fd, int ms);
00354
00355
00356
00357
00358
00359
00360
00361
00362
00363
00364 int ast_carefulwrite(int fd, char *s, int len, int timeoutms);
00365
00366
00367
00368
00369
00370
00371
00372
00373
00374
00375
00376
00377
00378
00379
00380
00381
00382
00383 int ast_careful_fwrite(FILE *f, int fd, const char *s, size_t len, int timeoutms);
00384
00385
00386
00387
00388
00389 #define AST_STACKSIZE (((sizeof(void *) * 8 * 8) - 16) * 1024)
00390
00391 #if defined(LOW_MEMORY)
00392 #define AST_BACKGROUND_STACKSIZE (((sizeof(void *) * 8 * 2) - 16) * 1024)
00393 #else
00394 #define AST_BACKGROUND_STACKSIZE AST_STACKSIZE
00395 #endif
00396
00397 void ast_register_thread(char *name);
00398 void ast_unregister_thread(void *id);
00399
00400 int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *),
00401 void *data, size_t stacksize, const char *file, const char *caller,
00402 int line, const char *start_fn);
00403
00404 int ast_pthread_create_detached_stack(pthread_t *thread, pthread_attr_t *attr, void*(*start_routine)(void *),
00405 void *data, size_t stacksize, const char *file, const char *caller,
00406 int line, const char *start_fn);
00407
00408 #define ast_pthread_create(a, b, c, d) \
00409 ast_pthread_create_stack(a, b, c, d, \
00410 0, __FILE__, __FUNCTION__, __LINE__, #c)
00411
00412 #define ast_pthread_create_detached(a, b, c, d) \
00413 ast_pthread_create_detached_stack(a, b, c, d, \
00414 0, __FILE__, __FUNCTION__, __LINE__, #c)
00415
00416 #define ast_pthread_create_background(a, b, c, d) \
00417 ast_pthread_create_stack(a, b, c, d, \
00418 AST_BACKGROUND_STACKSIZE, \
00419 __FILE__, __FUNCTION__, __LINE__, #c)
00420
00421 #define ast_pthread_create_detached_background(a, b, c, d) \
00422 ast_pthread_create_detached_stack(a, b, c, d, \
00423 AST_BACKGROUND_STACKSIZE, \
00424 __FILE__, __FUNCTION__, __LINE__, #c)
00425
00426
00427
00428
00429
00430
00431
00432
00433
00434 char *ast_process_quotes_and_slashes(char *start, char find, char replace_with);
00435
00436 long int ast_random(void);
00437
00438
00439
00440
00441
00442
00443
00444
00445 #ifdef __AST_DEBUG_MALLOC
00446 static void ast_free_ptr(void *ptr) attribute_unused;
00447 static void ast_free_ptr(void *ptr)
00448 {
00449 ast_free(ptr);
00450 }
00451 #else
00452 #define ast_free free
00453 #define ast_free_ptr ast_free
00454 #endif
00455
00456 #ifndef __AST_DEBUG_MALLOC
00457
00458 #define MALLOC_FAILURE_MSG \
00459 ast_log(LOG_ERROR, "Memory Allocation Failure in function %s at line %d of %s\n", func, lineno, file);
00460
00461
00462
00463
00464
00465
00466
00467
00468 #define ast_malloc(len) \
00469 _ast_malloc((len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00470
00471 AST_INLINE_API(
00472 void * attribute_malloc _ast_malloc(size_t len, const char *file, int lineno, const char *func),
00473 {
00474 void *p;
00475
00476 if (!(p = malloc(len)))
00477 MALLOC_FAILURE_MSG;
00478
00479 return p;
00480 }
00481 )
00482
00483
00484
00485
00486
00487
00488
00489
00490
00491 #define ast_calloc(num, len) \
00492 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00493
00494 AST_INLINE_API(
00495 void * attribute_malloc _ast_calloc(size_t num, size_t len, const char *file, int lineno, const char *func),
00496 {
00497 void *p;
00498
00499 if (!(p = calloc(num, len)))
00500 MALLOC_FAILURE_MSG;
00501
00502 return p;
00503 }
00504 )
00505
00506
00507
00508
00509
00510
00511
00512
00513
00514
00515
00516 #define ast_calloc_cache(num, len) \
00517 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00518
00519
00520
00521
00522
00523
00524
00525
00526
00527 #define ast_realloc(p, len) \
00528 _ast_realloc((p), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00529
00530 AST_INLINE_API(
00531 void * attribute_malloc _ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
00532 {
00533 void *newp;
00534
00535 if (!(newp = realloc(p, len)))
00536 MALLOC_FAILURE_MSG;
00537
00538 return newp;
00539 }
00540 )
00541
00542
00543
00544
00545
00546
00547
00548
00549
00550
00551
00552
00553
00554 #define ast_strdup(str) \
00555 _ast_strdup((str), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00556
00557 AST_INLINE_API(
00558 char * attribute_malloc _ast_strdup(const char *str, const char *file, int lineno, const char *func),
00559 {
00560 char *newstr = NULL;
00561
00562 if (str) {
00563 if (!(newstr = strdup(str)))
00564 MALLOC_FAILURE_MSG;
00565 }
00566
00567 return newstr;
00568 }
00569 )
00570
00571
00572
00573
00574
00575
00576
00577
00578
00579
00580
00581
00582
00583 #define ast_strndup(str, len) \
00584 _ast_strndup((str), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00585
00586 AST_INLINE_API(
00587 char * attribute_malloc _ast_strndup(const char *str, size_t len, const char *file, int lineno, const char *func),
00588 {
00589 char *newstr = NULL;
00590
00591 if (str) {
00592 if (!(newstr = strndup(str, len)))
00593 MALLOC_FAILURE_MSG;
00594 }
00595
00596 return newstr;
00597 }
00598 )
00599
00600
00601
00602
00603
00604
00605
00606
00607
00608 #define ast_asprintf(ret, fmt, ...) \
00609 _ast_asprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, fmt, __VA_ARGS__)
00610
00611 int __attribute__((format(printf, 5, 6)))
00612 _ast_asprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, ...);
00613
00614
00615
00616
00617
00618
00619
00620
00621
00622 #define ast_vasprintf(ret, fmt, ap) \
00623 _ast_vasprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, (fmt), (ap))
00624
00625 AST_INLINE_API(
00626 __attribute__((format(printf, 5, 0)))
00627 int _ast_vasprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, va_list ap),
00628 {
00629 int res;
00630
00631 if ((res = vasprintf(ret, fmt, ap)) == -1)
00632 MALLOC_FAILURE_MSG;
00633
00634 return res;
00635 }
00636 )
00637
00638 #endif
00639
00640
00641
00642
00643
00644
00645
00646
00647 #define ast_alloca(size) __builtin_alloca(size)
00648
00649 #if !defined(ast_strdupa) && defined(__GNUC__)
00650
00651
00652
00653
00654
00655
00656
00657 #define ast_strdupa(s) \
00658 (__extension__ \
00659 ({ \
00660 const char *__old = (s); \
00661 size_t __len = strlen(__old) + 1; \
00662 char *__new = __builtin_alloca(__len); \
00663 memcpy (__new, __old, __len); \
00664 __new; \
00665 }))
00666 #endif
00667
00668
00669
00670
00671
00672
00673
00674
00675
00676
00677
00678
00679
00680
00681 void ast_enable_packet_fragmentation(int sock);
00682
00683
00684
00685
00686
00687
00688
00689
00690
00691 int ast_mkdir(const char *path, int mode);
00692
00693 #define ARRAY_LEN(a) (size_t) (sizeof(a) / sizeof(0[a]))
00694
00695
00696
00697 struct ast_http_digest {
00698 AST_DECLARE_STRING_FIELDS(
00699 AST_STRING_FIELD(username);
00700 AST_STRING_FIELD(nonce);
00701 AST_STRING_FIELD(uri);
00702 AST_STRING_FIELD(realm);
00703 AST_STRING_FIELD(domain);
00704 AST_STRING_FIELD(response);
00705 AST_STRING_FIELD(cnonce);
00706 AST_STRING_FIELD(opaque);
00707 AST_STRING_FIELD(nc);
00708 );
00709 int qop;
00710 };
00711
00712
00713
00714
00715
00716
00717
00718
00719 int ast_parse_digest(const char *digest, struct ast_http_digest *d, int request, int pedantic);
00720
00721
00722 #ifdef AST_DEVMODE
00723 void __ast_assert_failed(int condition, const char *condition_str, const char *file, int line, const char *function);
00724 #define ast_assert(a) _ast_assert(a, # a, __FILE__, __LINE__, __PRETTY_FUNCTION__)
00725 static void force_inline _ast_assert(int condition, const char *condition_str, const char *file, int line, const char *function)
00726 {
00727 if (__builtin_expect(!condition, 1)) {
00728 __ast_assert_failed(condition, condition_str, file, line, function);
00729 }
00730 }
00731 #else
00732 #define ast_assert(a)
00733 #endif
00734
00735
00736
00737
00738
00739
00740
00741
00742 void ast_do_crash(void);
00743
00744 #include "asterisk/strings.h"
00745
00746
00747
00748
00749
00750
00751
00752
00753
00754 #define ast_alignof(type) __alignof__(type)
00755
00756
00757
00758
00759
00760
00761
00762
00763
00764
00765
00766
00767
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00769
00770
00771
00772
00773
00774 #define ast_align_for(offset, type) (((offset + __alignof__(type) - 1) / __alignof__(type)) * __alignof__(type))
00775
00776
00777
00778
00779
00780
00781
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00790
00791
00792
00793
00794
00795
00796
00797 #define ast_make_room_for(offset, type) (((offset + (2 * __alignof__(type) - 1)) / __alignof__(type)) * __alignof__(type))
00798
00799
00800
00801
00802 struct ast_eid {
00803 unsigned char eid[6];
00804 } __attribute__((__packed__));
00805
00806
00807
00808
00809
00810
00811
00812 extern struct ast_eid ast_eid_default;
00813
00814
00815
00816
00817
00818 void ast_set_default_eid(struct ast_eid *eid);
00819
00820
00821
00822
00823
00824 char *ast_eid_to_str(char *s, int maxlen, struct ast_eid *eid);
00825
00826
00827
00828
00829
00830
00831
00832
00833
00834
00835 int ast_str_to_eid(struct ast_eid *eid, const char *s);
00836
00837
00838
00839
00840
00841
00842
00843 int ast_eid_cmp(const struct ast_eid *eid1, const struct ast_eid *eid2);
00844
00845
00846
00847
00848
00849
00850
00851
00852 char *ast_utils_which(const char *binary, char *fullpath, size_t fullpath_size);
00853
00854 #endif