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#ifndef __UNISTD_H__
#define __UNISTD_H__
#include <reent.h>
#include <stddef.h>
#include <stdint.h>
typedef int32_t ssize_t;
typedef int32_t off_t;
enum open_types_t {
O_RDONLY = 0,
O_WRONLY = 1,
O_RDWR = 2,
O_CREAT = 4,
O_TRUNC = 8,
O_APPEND = 16,
};
enum seek_wheels_t {
SEEK_SET = 0,
SEEK_CUR = 1,
SEEK_END = 2,
};
int open(const char *pathname, int flags);
int close(int fd);
ssize_t read(int fd, void *buf, size_t count);
ssize_t write(int fd, const void *buf, size_t count);
#endif
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