DIR *explain_opendir_or_die(const char *pathname);
DESCRIPTION
The explain_opendir_or_die function is used to call the
opendir(3) system call. On failure an explanation will be
printed to stderr, obtained from explain_opendir(3),
and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion
similar to the following example:
DIR *dir = explain_opendir_or_die(pathname);
pathname
The pathname, exactly as to be passed to the opendir(3) system call.
Returns:
On success, a pointer to the directory stream.
On failure, prints an explanation and exits, does not return.