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Diffstat (limited to 'include/stdlib.h')
| -rw-r--r-- | include/stdlib.h | 405 |
1 files changed, 405 insertions, 0 deletions
diff --git a/include/stdlib.h b/include/stdlib.h new file mode 100644 index 000000000000..784cb63bfc5b --- /dev/null +++ b/include/stdlib.h @@ -0,0 +1,405 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _STDLIB_H_ +#define _STDLIB_H_ + +#include <sys/cdefs.h> +#include <sys/_null.h> +#include <sys/_types.h> + +__NULLABILITY_PRAGMA_PUSH + +#ifndef _SIZE_T_DECLARED +typedef __size_t size_t; +#define _SIZE_T_DECLARED +#endif + +#ifndef __cplusplus +#ifndef _WCHAR_T_DECLARED +typedef ___wchar_t wchar_t; +#define _WCHAR_T_DECLARED +#endif +#endif + +typedef struct { + int quot; /* quotient */ + int rem; /* remainder */ +} div_t; + +typedef struct { + long quot; + long rem; +} ldiv_t; + +#define EXIT_FAILURE 1 +#define EXIT_SUCCESS 0 + +/* + * I.e., INT_MAX; rand(3) returns a signed integer but must produce output in + * the range [0, RAND_MAX], so half of the possible output range is unused. + */ +#define RAND_MAX 0x7fffffff + +#if !defined(_STANDALONE) && defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 +#include <ssp/stdlib.h> +#endif + +__BEGIN_DECLS +#ifdef _XLOCALE_H_ +#include <xlocale/_stdlib.h> +#endif +extern int __mb_cur_max; +extern int ___mb_cur_max(void); +#define MB_CUR_MAX ((size_t)___mb_cur_max()) + +_Noreturn void abort(void) __noexcept; +int abs(int) __pure2; +int atexit(void (* _Nonnull)(void)) __noexcept; +double atof(const char *); +int atoi(const char *); +long atol(const char *); +void *bsearch(const void *, const void *, size_t, + size_t, int (*)(const void * _Nonnull, const void *)); +void *calloc(size_t, size_t) __malloc_like __result_use_check + __alloc_size2(1, 2); +div_t div(int, int) __pure2; +_Noreturn void exit(int); +void free(void *); +char *getenv(const char *); +#if __BSD_VISIBLE +int getenv_r(const char *, char * _Nonnull, size_t); +#endif +long labs(long) __pure2; +ldiv_t ldiv(long, long) __pure2; +void *malloc(size_t) __malloc_like __result_use_check __alloc_size(1); +int mblen(const char *, size_t); +size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); +int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); +void qsort(void *, size_t, size_t, + int (* _Nonnull)(const void *, const void *)); +int rand(void); +void *realloc(void *, size_t) __result_use_check __alloc_size(2); +void srand(unsigned); +double strtod(const char * __restrict, char ** __restrict); +float strtof(const char * __restrict, char ** __restrict); +long strtol(const char * __restrict, char ** __restrict, int); +long double + strtold(const char * __restrict, char ** __restrict); +unsigned long + strtoul(const char * __restrict, char ** __restrict, int); +int system(const char *); +int wctomb(char *, wchar_t); +size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); + +/* + * Functions added in C99 which we make conditionally available in the + * BSD^C89 namespace if the compiler supports `long long'. + * The #if test is more complicated than it ought to be because + * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' + * is not supported in the compilation environment (which therefore means + * that it can't really be ISO C99). + * + * (The only other extension made by C99 in this header is _Exit().) + */ +#if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus) +#ifdef __LONG_LONG_SUPPORTED +/* LONGLONG */ +typedef struct { + long long quot; + long long rem; +} lldiv_t; + +/* LONGLONG */ +long long + atoll(const char *); +/* LONGLONG */ +long long + llabs(long long) __pure2; +/* LONGLONG */ +lldiv_t lldiv(long long, long long) __pure2; +/* LONGLONG */ +long long + strtoll(const char * __restrict, char ** __restrict, int); +/* LONGLONG */ +unsigned long long + strtoull(const char * __restrict, char ** __restrict, int); +#endif /* __LONG_LONG_SUPPORTED */ + +_Noreturn void _Exit(int) __noexcept; +#endif /* __ISO_C_VISIBLE >= 1999 */ + +/* + * If we're in a mode greater than C99, expose C11 functions. + */ +#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L +void * aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1) + __alloc_size(2); +int at_quick_exit(void (*)(void)) __noexcept; +_Noreturn void + quick_exit(int) /* __noexcept -- not ready ABI issues? */; +#endif /* __ISO_C_VISIBLE >= 2011 */ +/* + * Extensions made by POSIX relative to C. + */ +#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE +char *realpath(const char * __restrict, char * __restrict); +#endif +#if __POSIX_VISIBLE >= 199506 +int rand_r(unsigned *); /* (TSF) */ +#endif +#if __POSIX_VISIBLE >= 200112 +int posix_memalign(void **, size_t, size_t); /* (ADV) */ +int setenv(const char *, const char *, int); +int unsetenv(const char *); +#endif + +#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE +int getsubopt(char **, char *const *, char **); +#ifndef _MKDTEMP_DECLARED +char *mkdtemp(char *); +#define _MKDTEMP_DECLARED +#endif +#ifndef _MKSTEMP_DECLARED +int mkstemp(char *); +#define _MKSTEMP_DECLARED +#endif +#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ + +/* + * The only changes to the XSI namespace in revision 6 were the deletion + * of the ttyslot() and valloc() functions, which FreeBSD never declared + * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which + * FreeBSD also does not have, and mktemp(), are to be deleted. + */ +#if __XSI_VISIBLE +/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ +long a64l(const char *); +double drand48(void); +/* char *ecvt(double, int, int * __restrict, int * __restrict); */ +double erand48(unsigned short[3]); +/* char *fcvt(double, int, int * __restrict, int * __restrict); */ +/* char *gcvt(double, int, int * __restrict, int * __restrict); */ +char *initstate(unsigned int, char *, size_t); +long jrand48(unsigned short[3]); +char *l64a(long); +void lcong48(unsigned short[7]); +long lrand48(void); +#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) +char *mktemp(char *); +#define _MKTEMP_DECLARED +#endif +long mrand48(void); +long nrand48(unsigned short[3]); +int putenv(char *); +long random(void); +unsigned short + *seed48(unsigned short[3]); +char *setstate(/* const */ char *); +void srand48(long); +void srandom(unsigned int); +#endif /* __XSI_VISIBLE */ + +#if __XSI_VISIBLE +int grantpt(int); +int posix_openpt(int); +char *ptsname(int); +int unlockpt(int); +#endif /* __XSI_VISIBLE */ +#if __BSD_VISIBLE +/* ptsname_r will be included in POSIX issue 8 */ +int ptsname_r(int, char *, size_t); +#endif + +#if __BSD_VISIBLE +extern const char *malloc_conf; +extern void (*malloc_message)(void *, const char *); + +/* + * The alloca() function can't be implemented in C, and on some + * platforms it can't be implemented at all as a callable function. + * The GNU C compiler provides a built-in alloca() which we can use. + * On platforms where alloca() is not in libc, programs which use it + * will fail to link when compiled with non-GNU compilers. + */ +#if __GNUC__ >= 2 +#undef alloca /* some GNU bits try to get cute and define this on their own */ +#define alloca(sz) __builtin_alloca(sz) +#endif + +void abort2(const char *, int, void **) __dead2; +__uint32_t + arc4random(void); +void arc4random_buf(void *, size_t); +__uint32_t + arc4random_uniform(__uint32_t); + +#ifdef __BLOCKS__ +int atexit_b(void (^ _Nonnull)(void)); +void *bsearch_b(const void *, const void *, size_t, + size_t, int (^ _Nonnull)(const void *, const void *)); +#endif +char *getbsize(int *, long *); + /* getcap(3) functions */ +char *cgetcap(char *, const char *, int); +int cgetclose(void); +int cgetent(char **, char **, const char *); +int cgetfirst(char **, char **); +int cgetmatch(const char *, const char *); +int cgetnext(char **, char **); +int cgetnum(char *, const char *, long *); +int cgetset(const char *); +int cgetstr(char *, const char *, char **); +int cgetustr(char *, const char *, char **); + +int clearenv(void); + +int daemon(int, int); +int daemonfd(int, int); +char *devname(__dev_t, __mode_t); +char *devname_r(__dev_t, __mode_t, char *, int); +char *fdevname(int); +char *fdevname_r(int, char *, int); +int getloadavg(double [], int); +const char * + getprogname(void); + +int heapsort(void *, size_t, size_t, + int (* _Nonnull)(const void *, const void *)); +#ifdef __BLOCKS__ +int heapsort_b(void *, size_t, size_t, + int (^ _Nonnull)(const void *, const void *)); +void qsort_b(void *, size_t, size_t, + int (^ _Nonnull)(const void *, const void *)); +#endif +int l64a_r(long, char *, int); +int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); +#ifdef __BLOCKS__ +int mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *)); +#endif +int mkostemp(char *, int); +int mkostemps(char *, int, int); +int mkostempsat(int, char *, int, int); +void qsort_r(void *, size_t, size_t, + int (*)(const void *, const void *, void *), void *); +int radixsort(const unsigned char **, int, const unsigned char *, + unsigned); +void *reallocarray(void *, size_t, size_t) __result_use_check + __alloc_size2(2, 3); +void *recallocarray(void *, size_t, size_t, size_t) __result_use_check + __alloc_size2(3, 4); +void *reallocf(void *, size_t) __result_use_check __alloc_size(2); +int rpmatch(const char *); +char *secure_getenv(const char *); +void setprogname(const char *); +int sradixsort(const unsigned char **, int, const unsigned char *, + unsigned); +void srandomdev(void); +long long + strtonum(const char *, long long, long long, const char **); + +/* Deprecated interfaces, to be removed. */ +__int64_t + strtoq(const char *, char **, int); +__uint64_t + strtouq(const char *, char **, int); + +/* + * In FreeBSD 14, the prototype of qsort_r() was modified to comply with + * POSIX. The standardized qsort_r()'s order of last two parameters was + * changed, and the comparator function is now taking thunk as its last + * parameter, and both are different from the ones expected by the historical + * FreeBSD qsort_r() interface. + * + * Apply a workaround where we explicitly link against the historical interface, + * qsort_r@FBSD_1.0, in case when qsort_r() is called with the last parameter + * with a function pointer that exactly matches the historical FreeBSD qsort_r() + * comparator signature, so applications written for the historical interface + * can continue to work without modification. Toolchains that don't support + * symbol versioning don't define __sym_compat, so only provide this symbol in + * supported environments. + */ +#ifdef __sym_compat +#if defined(__generic) || defined(__cplusplus) +void __qsort_r_compat(void *, size_t, size_t, void *, + int (*)(void *, const void *, const void *)); +__sym_compat(qsort_r, __qsort_r_compat, FBSD_1.0); +#endif +#endif +#if defined(__generic) && !defined(__cplusplus) +#define qsort_r(base, nel, width, arg4, arg5) \ + __generic(arg5, int (*)(void *, const void *, const void *), \ + __qsort_r_compat, qsort_r)(base, nel, width, arg4, arg5) +#elif defined(__cplusplus) && defined(__sym_compat) +__END_DECLS +extern "C++" { +static inline void qsort_r(void *base, size_t nmemb, size_t size, + void *thunk, int (*compar)(void *, const void *, const void *)) { + __qsort_r_compat(base, nmemb, size, thunk, compar); +} +} +__BEGIN_DECLS +#endif + +extern char *suboptarg; /* getsubopt(3) external variable */ +#endif /* __BSD_VISIBLE */ + +#if __EXT1_VISIBLE + +#ifndef _RSIZE_T_DEFINED +#define _RSIZE_T_DEFINED +typedef size_t rsize_t; +#endif + +#ifndef _ERRNO_T_DEFINED +#define _ERRNO_T_DEFINED +typedef int errno_t; +#endif + +/* K.3.6 */ +typedef void (*constraint_handler_t)(const char * __restrict, + void * __restrict, errno_t); +/* K.3.6.1.1 */ +constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); +/* K.3.6.1.2 */ +_Noreturn void abort_handler_s(const char * __restrict, void * __restrict, + errno_t); +/* K3.6.1.3 */ +void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); +/* K.3.6.3.2 */ +errno_t qsort_s(void *, rsize_t, rsize_t, + int (*)(const void *, const void *, void *), void *); +#endif /* __EXT1_VISIBLE */ + +__END_DECLS +__NULLABILITY_PRAGMA_POP + +#endif /* !_STDLIB_H_ */ |