1 
2 #ifndef __UNISTD_H__
3 #define __UNISTD_H__
4 
5 #define STDIN_FILENO		0
6 #define STDOUT_FILENO		1
7 #define STDERR_FILENO		2
8 
9 struct timeval;
10 
11 int syscall(int number, ...);
12 unsigned int sleep(unsigned int seconds);
13 pid_t spawn(const char *path, const char *argv[]);
14 
15 #endif /* __UNISTD_H__ */
16 
17