1/*
2 * unistd.h
3 */
4
5#ifndef _UNISTD_H
6#define _UNISTD_H
7
8#include <klibc/extern.h>
9#include <klibc/compiler.h>
10#include <stddef.h>
11#include <sys/types.h>
12
13__extern __noreturn _exit(int);
14
15__extern int open(const char *, int, ...);
16__extern int close(int);
17
18__extern ssize_t read(int, void *, size_t);
19__extern ssize_t write(int, const void *, size_t);
20
21__extern int isatty(int);
22
23__extern int getscreensize(int, int *, int *);
24
25__extern char *getcwd(char *, int);
26__extern int chdir(const char *);
27
28__extern unsigned int sleep(unsigned int);
29__extern unsigned int msleep(unsigned int);
30
31__extern int getopt(int, char *const *, const char *);
32__extern char *optarg;
33__extern int optind, opterr, optopt;
34
35/* Standard file descriptor numbers. */
36#define STDIN_FILENO	0
37#define STDOUT_FILENO	1
38#define STDERR_FILENO	2
39
40#endif /* _UNISTD_H */
41