0f23818153
Support getting and setting POSIX environment variables. Additionally, the thread-safe BSD variant getenv_r() is provided. environ, getenv(), setenv(), and unsetenv() are required by the POSIX_SINGLE_PROCESS Option Group as detailed in Section E.1 of IEEE-1003.1-2017. The POSIX_SINGLE_PROCESS Option Group is required for PSE51, PSE52, PSE53, and PSE54 conformance, and is otherwise mandatory for any POSIX conforming system as per Section A.2.1.3 of IEEE-1003-1.2017. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
87 lines
2 KiB
C
87 lines
2 KiB
C
/* stdlib.h */
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/*
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* Copyright (c) 2011-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_STDLIB_H_
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#define ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_STDLIB_H_
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#include <stddef.h>
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#include <limits.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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unsigned long strtoul(const char *nptr, char **endptr, int base);
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long strtol(const char *nptr, char **endptr, int base);
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unsigned long long strtoull(const char *nptr, char **endptr, int base);
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long long strtoll(const char *nptr, char **endptr, int base);
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int atoi(const char *s);
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void *malloc(size_t size);
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void *aligned_alloc(size_t alignment, size_t size); /* From C11 */
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void free(void *ptr);
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void *calloc(size_t nmemb, size_t size);
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void *realloc(void *ptr, size_t size);
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void *reallocarray(void *ptr, size_t nmemb, size_t size);
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void *bsearch(const void *key, const void *array,
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size_t count, size_t size,
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int (*cmp)(const void *key, const void *element));
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void qsort_r(void *base, size_t nmemb, size_t size,
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int (*compar)(const void *, const void *, void *), void *arg);
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void qsort(void *base, size_t nmemb, size_t size,
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int (*compar)(const void *, const void *));
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#define EXIT_SUCCESS 0
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#define EXIT_FAILURE 1
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void _exit(int status);
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static inline void exit(int status)
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{
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_exit(status);
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}
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void abort(void);
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#ifdef CONFIG_MINIMAL_LIBC_RAND
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#define RAND_MAX INT_MAX
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int rand_r(unsigned int *seed);
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int rand(void);
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void srand(unsigned int seed);
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#endif /* CONFIG_MINIMAL_LIBC_RAND */
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static inline int abs(int __n)
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{
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return (__n < 0) ? -__n : __n;
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}
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static inline long labs(long __n)
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{
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return (__n < 0L) ? -__n : __n;
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}
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static inline long long llabs(long long __n)
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{
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return (__n < 0LL) ? -__n : __n;
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}
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char *getenv(const char *name);
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#if _POSIX_C_SOURCE >= 200112L
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int setenv(const char *name, const char *val, int overwrite);
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int unsetenv(const char *name);
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#endif
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#ifdef _BSD_SOURCE
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int getenv_r(const char *name, char *buf, size_t len);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_STDLIB_H_ */
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