8 #define STDOUT_FILENO 1
9 #define STDERR_FILENO 2
15 int access(char *name
, int type
);
17 extern char **environ
;
20 int write(int fd
, void *buf
, int n
);
21 int read(int fd
, void *buf
, int n
);
26 long lseek(int fd
, long offset
, int whence
);
28 void _exit(int status
);
29 int execve(char *path
, char *argv
[], char *envp
[]);
30 int execle(char *path
, ...);
31 int execvp(char *file
, char *argv
[]);