##### Errno Values

All values are given in decimal representation.

           EPERM           1
           ENOENT          2
           EINTR           4
           EBADF           9
           EACCES         13
           EFAULT         14
           EBUSY          16
           EEXIST         17
           ENODEV         19
           ENOTDIR        20
           EISDIR         21
           EINVAL         22
           ENFILE         23
           EMFILE         24
           EFBIG          27
           ENOSPC         28
           ESPIPE         29
           EROFS          30
           ENAMETOOLONG   91
           EUNKNOWN       9999

`EUNKNOWN` is used as a fallback error value if a host system returns any error value not in the list of supported error numbers.