#ifndef _ERRNO_ #define _ERRNO_ extern int errno; #define EINVAL 1 /* invalid argument */ #define ENOENT 2 /* No such file or directory */ #define EMFILE 3 /* too many open files */ #define EBADF 9 /* bad file descriptor */ #define EACCES 13 /* Permission denied */ #define ENODEV 19 /* No such device */ #endif /* _ERRNO_ */