Home#include <lua/errno.lh>
rawio.access(filename [, mode])SYNOPSIS
DESCRIPTION
The rawio.access() function checks the accessibility of the file named by path for the access permissions indicated by mode.
The value of mode is a string that contains any combination of the letters 'r', 'w' or 'x'. The letter 'r' checks for read permission, 'w' checks for write permission and 'x' checks if a file can be executed or if a directory can be listed. The default value for mode is 'r'.
RETURN VALUE
On success, returns true. On error, three values are returned: nil, a string
describing the error (The result of the C library call strerror() on the errno code) and the errno number from
the standard C library.