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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 | /* Copyright (C) 1991-2007, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ /* * ISO C99 Standard: 7.20 General utilities <stdlib.h> */ #ifndef _STDLIB_H #include <features.h> /* Get size_t, wchar_t and NULL from <stddef.h>. */ #define __need_size_t #ifndef __need_malloc_and_calloc # ifdef __UCLIBC_HAS_WCHAR__ # define __need_wchar_t # endif # define __need_NULL #endif #include <stddef.h> __BEGIN_DECLS #ifndef __need_malloc_and_calloc #define _STDLIB_H 1 #if (defined __USE_XOPEN || defined __USE_XOPEN2K8) && !defined _SYS_WAIT_H /* XPG requires a few symbols from <sys/wait.h> being defined. */ # include <bits/waitflags.h> # include <bits/waitstatus.h> # ifdef __USE_BSD /* Lots of hair to allow traditional BSD use of `union wait' as well as POSIX.1 use of `int' for the status word. */ # if defined __GNUC__ && !defined __cplusplus # define __WAIT_INT(status) \ (__extension__ (((union { __typeof(status) __in; int __i; }) \ { .__in = (status) }).__i)) # else # define __WAIT_INT(status) (*(int *) &(status)) # endif /* This is the type of the argument to `wait'. The funky union causes redeclarations with either `int *' or `union wait *' to be allowed without complaint. __WAIT_STATUS_DEFN is the type used in the actual function definitions. */ # if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus # define __WAIT_STATUS void * # define __WAIT_STATUS_DEFN void * # else /* This works in GCC 2.6.1 and later. */ typedef union { union wait *__uptr; int *__iptr; } __WAIT_STATUS __attribute__ ((__transparent_union__)); # define __WAIT_STATUS_DEFN int * # endif # else /* Don't use BSD. */ # define __WAIT_INT(status) (status) # define __WAIT_STATUS int * # define __WAIT_STATUS_DEFN int * # endif /* Use BSD. */ /* Define the macros <sys/wait.h> also would define this way. */ # define WEXITSTATUS(status) __WEXITSTATUS (__WAIT_INT (status)) # define WTERMSIG(status) __WTERMSIG (__WAIT_INT (status)) # define WSTOPSIG(status) __WSTOPSIG (__WAIT_INT (status)) # define WIFEXITED(status) __WIFEXITED (__WAIT_INT (status)) # define WIFSIGNALED(status) __WIFSIGNALED (__WAIT_INT (status)) # define WIFSTOPPED(status) __WIFSTOPPED (__WAIT_INT (status)) # ifdef __WIFCONTINUED # define WIFCONTINUED(status) __WIFCONTINUED (__WAIT_INT (status)) # endif #endif /* X/Open and <sys/wait.h> not included. */ __BEGIN_NAMESPACE_STD /* Returned by `div'. */ typedef struct { int quot; /* Quotient. */ int rem; /* Remainder. */ } div_t; /* Returned by `ldiv'. */ #ifndef __ldiv_t_defined typedef struct { long int quot; /* Quotient. */ long int rem; /* Remainder. */ } ldiv_t; # define __ldiv_t_defined 1 #endif __END_NAMESPACE_STD #if defined __USE_ISOC99 && !defined __lldiv_t_defined __BEGIN_NAMESPACE_C99 /* Returned by `lldiv'. */ __extension__ typedef struct { long long int quot; /* Quotient. */ long long int rem; /* Remainder. */ } lldiv_t; # define __lldiv_t_defined 1 __END_NAMESPACE_C99 #endif /* The largest number rand will return (same as INT_MAX). */ #define RAND_MAX 2147483647 /* We define these the same for all machines. Changes from this to the outside world should be done in `_exit'. */ #define EXIT_FAILURE 1 /* Failing exit status. */ #define EXIT_SUCCESS 0 /* Successful exit status. */ /* Maximum length of a multibyte character in the current locale. */ #if 0 #define MB_CUR_MAX (__ctype_get_mb_cur_max ()) extern size_t __ctype_get_mb_cur_max (void) __THROW __wur; #else #ifdef __UCLIBC_HAS_WCHAR__ # define MB_CUR_MAX (_stdlib_mb_cur_max ()) extern size_t _stdlib_mb_cur_max (void) __THROW __wur; libc_hidden_proto(_stdlib_mb_cur_max) #else # define MB_CUR_MAX 1 #endif #endif __BEGIN_NAMESPACE_STD #ifdef __UCLIBC_HAS_FLOATS__ /* Convert a string to a floating-point number. */ extern double atof (const char *__nptr) __THROW __attribute_pure__ __nonnull ((1)) __wur; #endif /* __UCLIBC_HAS_FLOATS__ */ /* Convert a string to an integer. */ extern int atoi (const char *__nptr) __THROW __attribute_pure__ __nonnull ((1)) __wur; libc_hidden_proto(atoi) /* Convert a string to a long integer. */ extern long int atol (const char *__nptr) __THROW __attribute_pure__ __nonnull ((1)) __wur; __END_NAMESPACE_STD #if defined __USE_ISOC99 || defined __USE_MISC __BEGIN_NAMESPACE_C99 /* Convert a string to a long long integer. */ __extension__ extern long long int atoll (const char *__nptr) __THROW __attribute_pure__ __nonnull ((1)) __wur; __END_NAMESPACE_C99 #endif #ifdef __UCLIBC_HAS_FLOATS__ __BEGIN_NAMESPACE_STD /* Convert a string to a floating-point number. */ extern double strtod (const char *__restrict __nptr, char **__restrict __endptr) __THROW __nonnull ((1)) __wur; libc_hidden_proto(strtod) __END_NAMESPACE_STD #ifdef __USE_ISOC99 __BEGIN_NAMESPACE_C99 /* Likewise for `float' and `long double' sizes of floating-point numbers. */ extern float strtof (const char *__restrict __nptr, char **__restrict __endptr) __THROW __nonnull ((1)) __wur; extern long double strtold (const char *__restrict __nptr, char **__restrict __endptr) __THROW __nonnull ((1)) __wur; __END_NAMESPACE_C99 #endif #endif /* __UCLIBC_HAS_FLOATS__ */ __BEGIN_NAMESPACE_STD /* Convert a string to a long integer. */ extern long int strtol (const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW __nonnull ((1)) __wur; libc_hidden_proto(strtol) /* Convert a string to an unsigned long integer. */ extern unsigned long int strtoul (const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW __nonnull ((1)) __wur; libc_hidden_proto(strtoul) __END_NAMESPACE_STD #ifdef __USE_BSD #include <sys/types.h> /* for u_quad_t */ /* Convert a string to a quadword integer. */ __extension__ extern quad_t strtoq (const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW __nonnull ((1)) __wur; /* Convert a string to an unsigned quadword integer. */ __extension__ extern u_quad_t strtouq (const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW __nonnull ((1)) __wur; #endif /* GCC and use BSD. */ #if defined __USE_ISOC99 || defined __USE_MISC __BEGIN_NAMESPACE_C99 /* Convert a string to a quadword integer. */ __extension__ extern long long int strtoll (const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW __nonnull ((1)) __wur; libc_hidden_proto(strtoll) /* Convert a string to an unsigned quadword integer. */ __extension__ extern unsigned long long int strtoull (const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW __nonnull ((1)) __wur; __END_NAMESPACE_C99 #endif /* ISO C99 or GCC and use MISC. */ #if defined __USE_GNU && defined __UCLIBC_HAS_XLOCALE__ /* The concept of one static locale per category is not very well thought out. Many applications will need to process its data using information from several different locales. Another problem is the implementation of the internationalization handling in the ISO C++ standard library. To support this another set of the functions using locale data exist which take an additional argument. Attention: even though several *_l interfaces are part of POSIX:2008, these are not. */ /* Structure for reentrant locale using functions. This is an (almost) opaque type for the user level programs. */ # include <xlocale.h> /* Special versions of the functions above which take the locale to use as an additional parameter. */ extern long int strtol_l (const char *__restrict __nptr, char **__restrict __endptr, int __base, __locale_t __loc) __THROW __nonnull ((1, 4)) __wur; libc_hidden_proto(strtol_l) extern unsigned long int strtoul_l (const char *__restrict __nptr, char **__restrict __endptr, int __base, __locale_t __loc) __THROW __nonnull ((1, 4)) __wur; libc_hidden_proto(strtoul_l) __extension__ extern long long int strtoll_l (const char *__restrict __nptr, char **__restrict __endptr, int __base, __locale_t __loc) __THROW __nonnull ((1, 4)) __wur; __extension__ extern unsigned long long int strtoull_l (const char *__restrict __nptr, char **__restrict __endptr, int __base, __locale_t __loc) __THROW __nonnull ((1, 4)) __wur; #ifdef __UCLIBC_HAS_FLOATS__ extern double strtod_l (const char *__restrict __nptr, char **__restrict __endptr, __locale_t __loc) __THROW __nonnull ((1, 3)) __wur; extern float strtof_l (const char *__restrict __nptr, char **__restrict __endptr, __locale_t __loc) __THROW __nonnull ((1, 3)) __wur; extern long double strtold_l (const char *__restrict __nptr, char **__restrict __endptr, __locale_t __loc) __THROW __nonnull ((1, 3)) __wur; #endif /* __UCLIBC_HAS_FLOATS__ */ #endif /* GNU */ #if defined __USE_SVID || defined __USE_XOPEN_EXTENDED /* Convert N to base 64 using the digits "./0-9A-Za-z", least-significant digit first. Returns a pointer to static storage overwritten by the next call. */ extern char *l64a (long int __n) __THROW __wur; /* Read a number from a string S in base 64 as above. */ extern long int a64l (const char *__s) __THROW __attribute_pure__ __nonnull ((1)) __wur; #endif /* Use SVID || extended X/Open. */ #if defined __USE_SVID || defined __USE_XOPEN_EXTENDED || defined __USE_BSD # include <sys/types.h> /* we need int32_t... */ /* These are the functions that actually do things. The `random', `srandom', `initstate' and `setstate' functions are those from BSD Unices. The `rand' and `srand' functions are required by the ANSI standard. We provide both interfaces to the same random number generator. */ /* Return a random long integer between 0 and RAND_MAX inclusive. */ extern long int random (void) __THROW; libc_hidden_proto(random) /* Seed the random number generator with the given number. */ extern void srandom (unsigned int __seed) __THROW; /* Initialize the random number generator to use state buffer STATEBUF, of length STATELEN, and seed it with SEED. Optimal lengths are 8, 16, 32, 64, 128 and 256, the bigger the better; values less than 8 will cause an error and values greater than 256 will be rounded down. */ extern char *initstate (unsigned int __seed, char *__statebuf, size_t __statelen) __THROW __nonnull ((2)); /* Switch the random number generator to state buffer STATEBUF, which should have been previously initialized by `initstate'. */ extern char *setstate (char *__statebuf) __THROW __nonnull ((1)); # ifdef __USE_MISC /* Reentrant versions of the `random' family of functions. These functions all use the following data structure to contain state, rather than global state variables. */ struct random_data { int32_t *fptr; /* Front pointer. */ int32_t *rptr; /* Rear pointer. */ int32_t *state; /* Array of state values. */ #if 0 int rand_type; /* Type of random number generator. */ int rand_deg; /* Degree of random number generator. */ int rand_sep; /* Distance between front and rear. */ #else /* random_r.c, TYPE_x, DEG_x, SEP_x - small enough for int8_t */ int8_t rand_type; /* Type of random number generator. */ int8_t rand_deg; /* Degree of random number generator. */ int8_t rand_sep; /* Distance between front and rear. */ #endif int32_t *end_ptr; /* Pointer behind state table. */ }; extern int random_r (struct random_data *__restrict __buf, int32_t *__restrict __result) __THROW __nonnull ((1, 2)); libc_hidden_proto(random_r) extern int srandom_r (unsigned int __seed, struct random_data *__buf) __THROW __nonnull ((2)); libc_hidden_proto(srandom_r) extern int initstate_r (unsigned int __seed, char *__restrict __statebuf, size_t __statelen, struct random_data *__restrict __buf) __THROW __nonnull ((2, 4)); libc_hidden_proto(initstate_r) extern int setstate_r (char *__restrict __statebuf, struct random_data *__restrict __buf) __THROW __nonnull ((1, 2)); libc_hidden_proto(setstate_r) # endif /* Use misc. */ #endif /* Use SVID || extended X/Open || BSD. */ __BEGIN_NAMESPACE_STD /* Return a random integer between 0 and RAND_MAX inclusive. */ extern int rand (void) __THROW; /* Seed the random number generator with the given number. */ extern void srand (unsigned int __seed) __THROW; __END_NAMESPACE_STD #ifdef __USE_POSIX /* Reentrant interface according to POSIX.1. */ extern int rand_r (unsigned int *__seed) __THROW; #endif #if defined __USE_SVID || defined __USE_XOPEN /* System V style 48-bit random number generator functions. */ #ifdef __UCLIBC_HAS_FLOATS__ /* Return non-negative, double-precision floating-point value in [0.0,1.0). */ extern double drand48 (void) __THROW; extern double erand48 (unsigned short int __xsubi[3]) __THROW __nonnull ((1)); #endif /* __UCLIBC_HAS_FLOATS__ */ /* Return non-negative, long integer in [0,2^31). */ extern long int lrand48 (void) __THROW; extern long int nrand48 (unsigned short int __xsubi[3]) __THROW __nonnull ((1)); /* Return signed, long integers in [-2^31,2^31). */ extern long int mrand48 (void) __THROW; extern long int jrand48 (unsigned short int __xsubi[3]) __THROW __nonnull ((1)); /* Seed random number generator. */ extern void srand48 (long int __seedval) __THROW; extern unsigned short int *seed48 (unsigned short int __seed16v[3]) __THROW __nonnull ((1)); extern void lcong48 (unsigned short int __param[7]) __THROW __nonnull ((1)); # ifdef __USE_MISC /* Data structure for communication with thread safe versions. This type is to be regarded as opaque. It's only exported because users have to allocate objects of this type. */ struct drand48_data { unsigned short int __x[3]; /* Current state. */ unsigned short int __old_x[3]; /* Old state. */ unsigned short int __c; /* Additive const. in congruential formula. */ unsigned short int __init; /* Flag for initializing. */ unsigned long long int __a; /* Factor in congruential formula. */ }; #ifdef __UCLIBC_HAS_FLOATS__ /* Return non-negative, double-precision floating-point value in [0.0,1.0). */ extern int drand48_r (struct drand48_data *__restrict __buffer, double *__restrict __result) __THROW __nonnull ((1, 2)); extern int erand48_r (unsigned short int __xsubi[3], struct drand48_data *__restrict __buffer, double *__restrict __result) __THROW __nonnull ((1, 2)); libc_hidden_proto(erand48_r) #endif /* __UCLIBC_HAS_FLOATS__ */ /* Return non-negative, long integer in [0,2^31). */ extern int lrand48_r (struct drand48_data *__restrict __buffer, long int *__restrict __result) __THROW __nonnull ((1, 2)); libc_hidden_proto(lrand48_r) extern int nrand48_r (unsigned short int __xsubi[3], struct drand48_data *__restrict __buffer, long int *__restrict __result) __THROW __nonnull ((1, 2)); libc_hidden_proto(nrand48_r) /* Return signed, long integers in [-2^31,2^31). */ extern int mrand48_r (struct drand48_data *__restrict __buffer, long int *__restrict __result) __THROW __nonnull ((1, 2)); extern int jrand48_r (unsigned short int __xsubi[3], struct drand48_data *__restrict __buffer, long int *__restrict __result) __THROW __nonnull ((1, 2)); libc_hidden_proto(jrand48_r) /* Seed random number generator. */ extern int srand48_r (long int __seedval, struct drand48_data *__buffer) __THROW __nonnull ((2)); libc_hidden_proto(srand48_r) extern int seed48_r (unsigned short int __seed16v[3], struct drand48_data *__buffer) __THROW __nonnull ((1, 2)); libc_hidden_proto(seed48_r) extern int lcong48_r (unsigned short int __param[7], struct drand48_data *__buffer) __THROW __nonnull ((1, 2)); # endif /* Use misc. */ #endif /* Use SVID or X/Open. */ #endif /* don't just need malloc and calloc */ #ifndef __malloc_and_calloc_defined # define __malloc_and_calloc_defined __BEGIN_NAMESPACE_STD /* Allocate SIZE bytes of memory. */ extern void *malloc (size_t __size) __THROW __attribute_malloc__ __wur; /* We want the malloc symbol overridable at runtime, do not hide it! */ /* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */ extern void *calloc (size_t __nmemb, size_t __size) __THROW __attribute_malloc__ __wur; /* We want the calloc symbol overridable at runtime, do not hide it! */ __END_NAMESPACE_STD #endif #ifndef __need_malloc_and_calloc __BEGIN_NAMESPACE_STD /* Re-allocate the previously allocated block in PTR, making the new block SIZE bytes long. */ /* __attribute_malloc__ is not used, because if realloc returns the same pointer that was passed to it, aliasing needs to be allowed between objects pointed by the old and new pointers. */ extern void *realloc (void *__ptr, size_t __size) __THROW __wur; /* We want the realloc symbol overridable at runtime, do not hide it! */ /* Free a block allocated by `malloc', `realloc' or `calloc'. */ extern void free (void *__ptr) __THROW; /* We want the free symbol overridable at runtime, do not hide it! */ __END_NAMESPACE_STD #if 0 /*def __USE_MISC*/ /* Free a block. An alias for `free'. (Sun Unices). */ extern void cfree (void *__ptr) __THROW; #endif /* Use misc. */ #if defined __USE_GNU || defined __USE_BSD || defined __USE_MISC # include <alloca.h> #endif /* Use GNU, BSD, or misc. */ #ifdef __UCLIBC_SUSV2_LEGACY__ # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* Allocate SIZE bytes on a page boundary. The storage cannot be freed. */ extern void *valloc (size_t __size) __THROW __attribute_malloc__ __wur; # endif #endif #if defined __USE_XOPEN2K && defined __UCLIBC_HAS_ADVANCED_REALTIME__ /* Allocate memory of SIZE bytes with an alignment of ALIGNMENT. */ extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size) __THROW __nonnull ((1)) __wur; #endif #ifdef __USE_ISOC11 /* ISO C variant of aligned allocation. */ extern void *aligned_alloc (size_t __alignment, size_t __size) __THROW __attribute_malloc__ __attribute_alloc_size__ ((2)) __wur; #endif __BEGIN_NAMESPACE_STD /* Abort execution and generate a core-dump. */ extern void abort (void) __THROW __attribute__ ((__noreturn__)); libc_hidden_proto(abort) /* Register a function to be called when `exit' is called. */ extern int atexit (void (*__func) (void)) __THROW __nonnull ((1)); __END_NAMESPACE_STD #ifdef __USE_MISC /* Register a function to be called with the status given to `exit' and the given argument. */ extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg) __THROW __nonnull ((1)); #endif __BEGIN_NAMESPACE_STD /* Call all functions registered with `atexit' and `on_exit', in the reverse of the order in which they were registered, perform stdio cleanup, and terminate program execution with STATUS. */ extern void exit (int __status) __THROW __attribute__ ((__noreturn__)); libc_hidden_proto(exit) __END_NAMESPACE_STD #ifdef __USE_ISOC99 __BEGIN_NAMESPACE_C99 /* Terminate the program with STATUS without calling any of the functions registered with `atexit' or `on_exit'. */ extern void _Exit (int __status) __THROW __attribute__ ((__noreturn__)); __END_NAMESPACE_C99 #endif __BEGIN_NAMESPACE_STD /* Return the value of envariable NAME, or NULL if it doesn't exist. */ extern char *getenv (const char *__name) __THROW __nonnull ((1)) __wur; libc_hidden_proto(getenv) __END_NAMESPACE_STD /* This function is similar to the above but returns NULL if the programs is running with SUID or SGID enabled. */ extern char *secure_getenv (const char *__name) __THROW __nonnull ((1)) __wur; #if defined __USE_SVID || defined __USE_XOPEN /* The SVID says this is in <stdio.h>, but this seems a better place. */ /* Put STRING, which is of the form "NAME=VALUE", in the environment. If there is no `=', remove NAME from the environment. */ extern int putenv (char *__string) __THROW __nonnull ((1)); #endif #if defined __USE_BSD || defined __USE_XOPEN2K /* Set NAME to VALUE in the environment. If REPLACE is nonzero, overwrite an existing value. */ extern int setenv (const char *__name, const char *__value, int __replace) __THROW __nonnull ((2)); libc_hidden_proto(setenv) /* Remove the variable NAME from the environment. */ extern int unsetenv (const char *__name) __THROW; libc_hidden_proto(unsetenv) #endif /* The following is used by uClibc in atexit.c and sysconf.c */ /* We have no limit when __UCLIBC_DYNAMIC_ATEXIT__ is enabled. */ #ifdef __UCLIBC_DYNAMIC_ATEXIT__ # define __UCLIBC_MAX_ATEXIT INT_MAX #else # define __UCLIBC_MAX_ATEXIT 20 #endif #ifdef __USE_MISC /* The `clearenv' was planned to be added to POSIX.1 but probably never made it. Nevertheless the POSIX.9 standard (POSIX bindings for Fortran 77) requires this function. */ extern int clearenv (void) __THROW; #endif #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED # if defined __UCLIBC_SUSV3_LEGACY__ /* Generate a unique temporary file name from TEMPLATE. The last six characters of TEMPLATE must be "XXXXXX"; they are replaced with a string that makes the file name unique. Returns TEMPLATE, or a null pointer if it cannot get a unique file name. */ extern char *mktemp (char *__template) __THROW __nonnull ((1)) __wur; # endif /* Generate a unique temporary file name from TEMPLATE. The last six characters of TEMPLATE must be "XXXXXX"; they are replaced with a string that makes the filename unique. Returns a file descriptor open on the file for reading and writing, or -1 if it cannot create a uniquely-named file. This function is a possible cancellation point and therefore not marked with __THROW. */ # ifndef __USE_FILE_OFFSET64 extern int mkstemp (char *__template) __nonnull ((1)) __wur; # else # ifdef __REDIRECT extern int __REDIRECT (mkstemp, (char *__template), mkstemp64) __nonnull ((1)) __wur; # else # define mkstemp mkstemp64 # endif # endif # ifdef __USE_LARGEFILE64 extern int mkstemp64 (char *__template) __nonnull ((1)) __wur; # endif #endif #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED # if defined __UCLIBC_SUSV3_LEGACY__ extern char *mktemps (char *__template, int __suffixlen) __THROW __nonnull ((1)) __wur; # endif /* The mkstemps() function is like mkstemp(), except that the string in template contains a suffix of suffixlen characters. Thus, template is of the form prefixXXXXXXsuffix, and the string XXXXXX is modified as for mkstemp(). Returns a file descriptor open on the file for reading and writing, or -1 if it cannot create a uniquely-named file. This function is a possible cancellation point and therefore not marked with __THROW. */ # ifndef __USE_FILE_OFFSET64 extern int mkstemps (char *__template, int __suffixlen) __nonnull ((1)) __wur; # else # ifdef __REDIRECT extern int __REDIRECT (mkstemps, (char *__template, int __suffixlen), mkstemps64) __nonnull ((1)) __wur; # else # define mkstemps mkstemps64 # endif # endif # ifdef __USE_LARGEFILE64 extern int mkstemps64 (char *__template, int __suffixlen) __nonnull ((1)) __wur; # endif #endif #if defined __USE_BSD || defined __USE_XOPEN2K8 /* Create a unique temporary directory from TEMPLATE. The last six characters of TEMPLATE must be "XXXXXX"; they are replaced with a string that makes the directory name unique. Returns TEMPLATE, or a null pointer if it cannot get a unique name. The directory is created mode 700. */ extern char *mkdtemp (char *__template) __THROW __nonnull ((1)) __wur; #endif #ifdef __USE_GNU /* Generate a unique temporary file name from TEMPLATE similar to mkstemp. But allow the caller to pass additional flags which are used in the open call to create the file.. This function is a possible cancellation point and therefore not marked with __THROW. */ # ifndef __USE_FILE_OFFSET64 extern int mkostemp (char *__template, int __flags) __nonnull ((1)) __wur; # else # ifdef __REDIRECT extern int __REDIRECT (mkostemp, (char *__template, int __flags), mkostemp64) __nonnull ((1)) __wur; # else # define mkostemp mkostemp64 # endif # endif # ifdef __USE_LARGEFILE64 extern int mkostemp64 (char *__template, int __flags) __nonnull ((1)) __wur; # endif #endif #ifdef __USE_GNU /* Generate a unique temporary file name from TEMPLATE similar to mkostemp. But allow the caller to pass additional file name suffix. This function is a possible cancellation point and therefore not marked with __THROW. */ # ifndef __USE_FILE_OFFSET64 extern int mkostemps (char *__template, int __suffixlen, int __flags) __nonnull ((1)) __wur; # else # ifdef __REDIRECT extern int __REDIRECT (mkostemps, (char *__template, int __suffixlen, int __flags), mkostemps64) __nonnull ((1)) __wur; # else # define mkostemps mkostemps64 # endif # endif # ifdef __USE_LARGEFILE64 extern int mkostemps64 (char *__template, int __suffixlen, int __flags) __nonnull ((1)) __wur; # endif #endif __BEGIN_NAMESPACE_STD /* Execute the given line as a shell command. This function is a cancellation point and therefore not marked with __THROW. */ extern int system (const char *__command) __wur; __END_NAMESPACE_STD #ifdef __USE_GNU /* Return a malloc'd string containing the canonical absolute name of the existing named file. */ extern char *canonicalize_file_name (const char *__name) __THROW __nonnull ((1)) __wur; #endif #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* Return the canonical absolute name of file NAME. If RESOLVED is null, the result is malloc'd; otherwise, if the canonical name is PATH_MAX chars or more, returns null with `errno' set to ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars, returns the name in RESOLVED. */ extern char *realpath (const char *__restrict __name, char *__restrict __resolved) __THROW __wur; libc_hidden_proto(realpath) #endif /* Shorthand for type of comparison functions. */ #ifndef __COMPAR_FN_T # define __COMPAR_FN_T typedef int (*__compar_fn_t) (const void *, const void *); # ifdef __USE_GNU typedef __compar_fn_t comparison_fn_t; # endif #endif #ifdef __USE_GNU typedef int (*__compar_d_fn_t) (const void *, const void *, void *); #endif __BEGIN_NAMESPACE_STD /* Do a binary search for KEY in BASE, which consists of NMEMB elements of SIZE bytes each, using COMPAR to perform the comparisons. */ extern void *bsearch (const void *__key, const void *__base, size_t __nmemb, size_t __size, __compar_fn_t __compar) __nonnull ((1, 2, 5)) __wur; /* Sort NMEMB elements of BASE, of SIZE bytes each, using COMPAR to perform the comparisons. */ extern void qsort (void *__base, size_t __nmemb, size_t __size, __compar_fn_t __compar) __nonnull ((1, 4)); libc_hidden_proto(qsort) #ifdef __USE_GNU extern void qsort_r (void *__base, size_t __nmemb, size_t __size, __compar_d_fn_t __compar, void *__arg) __nonnull ((1, 4)); libc_hidden_proto(qsort_r) #endif /* Return the absolute value of X. */ extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; extern long int labs (long int __x) __THROW __attribute__ ((__const__)) __wur; __END_NAMESPACE_STD #ifdef __USE_ISOC99 __extension__ extern long long int llabs (long long int __x) __THROW __attribute__ ((__const__)) __wur; #endif __BEGIN_NAMESPACE_STD /* Return the `div_t', `ldiv_t' or `lldiv_t' representation of the value of NUMER over DENOM. */ /* GCC may have built-ins for these someday. */ extern div_t div (int __numer, int __denom) __THROW __attribute__ ((__const__)) __wur; extern ldiv_t ldiv (long int __numer, long int __denom) __THROW __attribute__ ((__const__)) __wur; __END_NAMESPACE_STD #ifdef __USE_ISOC99 __BEGIN_NAMESPACE_C99 __extension__ extern lldiv_t lldiv (long long int __numer, long long int __denom) __THROW __attribute__ ((__const__)) __wur; __END_NAMESPACE_C99 #endif #if ( defined __USE_SVID || defined __USE_XOPEN_EXTENDED ) && defined __UCLIBC_HAS_FLOATS__ /* Convert floating point numbers to strings. The returned values are valid only until another call to the same function. */ # ifdef __UCLIBC_SUSV3_LEGACY__ #if 0 /* Convert VALUE to a string with NDIGIT digits and return a pointer to this. Set *DECPT with the position of the decimal character and *SIGN with the sign of the number. */ extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur; /* Convert VALUE to a string rounded to NDIGIT decimal digits. Set *DECPT with the position of the decimal character and *SIGN with the sign of the number. */ extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur; #endif /* If possible convert VALUE to a string with NDIGIT significant digits. Otherwise use exponential representation. The resulting string will be written to BUF. */ extern char *gcvt (double __value, int __ndigit, char *__buf) __THROW __nonnull ((3)) __wur; # endif /* __UCLIBC_SUSV3_LEGACY__ */ # if 0 /*def __USE_MISC*/ /* Long double versions of above functions. */ extern char *qecvt (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur; extern char *qfcvt (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur; extern char *qgcvt (long double __value, int __ndigit, char *__buf) __THROW __nonnull ((3)) __wur; /* Reentrant version of the functions above which provide their own buffers. */ extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __THROW __nonnull ((3, 4, 5)); extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __THROW __nonnull ((3, 4, 5)); extern int qecvt_r (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __THROW __nonnull ((3, 4, 5)); extern int qfcvt_r (long double __value, int __ndigit, int *__restrict __decpt, int *__restrict __sign, char *__restrict __buf, size_t __len) __THROW __nonnull ((3, 4, 5)); # endif /* misc */ #endif /* use MISC || use X/Open Unix */ #ifdef __UCLIBC_HAS_WCHAR__ __BEGIN_NAMESPACE_STD /* Return the length of the multibyte character in S, which is no longer than N. */ extern int mblen (const char *__s, size_t __n) __THROW __wur; /* Return the length of the given multibyte character, putting its `wchar_t' representation in *PWC. */ extern int mbtowc (wchar_t *__restrict __pwc, const char *__restrict __s, size_t __n) __THROW __wur; /* Put the multibyte character represented by WCHAR in S, returning its length. */ extern int wctomb (char *__s, wchar_t __wchar) __THROW __wur; /* Convert a multibyte string to a wide char string. */ extern size_t mbstowcs (wchar_t *__restrict __pwcs, const char *__restrict __s, size_t __n) __THROW; /* Convert a wide char string to multibyte string. */ extern size_t wcstombs (char *__restrict __s, const wchar_t *__restrict __pwcs, size_t __n) __THROW; __END_NAMESPACE_STD #endif /* __UCLIBC_HAS_WCHAR__ */ #ifdef __USE_SVID /* Determine whether the string value of RESPONSE matches the affirmation or negative response expression as specified by the LC_MESSAGES category in the program's current locale. Returns 1 if affirmative, 0 if negative, and -1 if not matching. */ extern int rpmatch (const char *__response) __THROW __nonnull ((1)) __wur; #endif #ifdef __USE_XOPEN_EXTENDED /* Parse comma separated suboption from *OPTIONP and match against strings in TOKENS. If found return index and set *VALUEP to optional value introduced by an equal sign. If the suboption is not part of TOKENS return in *VALUEP beginning of unknown suboption. On exit *OPTIONP is set to the beginning of the next token or at the terminating NUL character. */ extern int getsubopt (char **__restrict __optionp, char *const *__restrict __tokens, char **__restrict __valuep) __THROW __nonnull ((1, 2, 3)) __wur; #endif #ifdef __USE_XOPEN # if defined __UCLIBC_HAS_CRYPT__ /* Setup DES tables according KEY. */ extern void setkey (const char *__key) __THROW __nonnull ((1)); # endif /* __UCLIBC_HAS_CRYPT__ */ #endif /* X/Open pseudo terminal handling. */ #ifdef __USE_XOPEN2K /* Return a master pseudo-terminal handle. */ extern int posix_openpt (int __oflag) __wur; #endif #ifdef __USE_XOPEN /* The next four functions all take a master pseudo-tty fd and perform an operation on the associated slave: */ #ifdef __UCLIBC_HAS_PTY__ /* Chown the slave to the calling user. */ extern int grantpt (int __fd) __THROW; /* Release an internal lock so the slave can be opened. Call after grantpt(). */ extern int unlockpt (int __fd) __THROW; /* Return the pathname of the pseudo terminal slave assoicated with the master FD is open on, or NULL on errors. The returned storage is good until the next call to this function. */ extern char *ptsname (int __fd) __THROW __wur; #endif /* __UCLIBC_HAS_PTY__ */ #endif #ifdef __USE_GNU # if defined __UCLIBC_HAS_PTY__ /* Store at most BUFLEN characters of the pathname of the slave pseudo terminal associated with the master FD is open on in BUF. Return 0 on success, otherwise an error number. */ extern int ptsname_r (int __fd, char *__buf, size_t __buflen) __THROW __nonnull ((2)); libc_hidden_proto(ptsname_r) # endif # if defined __UCLIBC_HAS_GETPT__ /* Open a master pseudo terminal and return its file descriptor. */ extern int getpt (void); # endif #endif #if 0 /* def __USE_BSD */ /* Put the 1 minute, 5 minute and 15 minute load averages into the first NELEM elements of LOADAVG. Return the number written (never more than three, but may be less than NELEM), or -1 if an error occurred. */ extern int getloadavg (double __loadavg[], int __nelem) __THROW __nonnull ((1)); #endif #ifdef __UCLIBC_HAS_ARC4RANDOM__ # include <sys/types.h> extern u_int32_t arc4random(void); extern void arc4random_stir(void); extern void arc4random_addrandom(unsigned char *, int); #endif #ifdef _LIBC extern int __drand48_iterate (unsigned short int xsubi[3], struct drand48_data *buffer) attribute_hidden; /* Global state for non-reentrant functions. */ extern struct drand48_data __libc_drand48_data attribute_hidden; #endif #endif /* don't just need malloc and calloc */ #undef __need_malloc_and_calloc __END_DECLS #endif /* stdlib.h */ |