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opendir
=======

Syntax
------

     #include <dirent.h>
     
     extern int __opendir_flags;
     
     DIR *opendir(char *name);

Description
-----------

This function "opens" a directory so that you can read the list of file
names in it.  The pointer returned must be passed to `closedir' when
you are done with it.  readdir:.   

The global variable `__opendir_flags' can be set to include the
following values to control the operation of `opendir':

`__OPENDIR_PRESERVE_CASE'
     Do not change the case of files to lower case.  Just in case
     Micros*ft decides to support case-sensitive file systems some day.

`__OPENDIR_FIND_HIDDEN'
     Include hidden files and directories in the search.  By default,
     these are skipped.

You can simply put "int __opendir_flags = ...;" in your code.  The
default is to let it get set to zero as an uninitialized variable.

Return Value
------------

The open directory structure, or `NULL' on error.

Example
-------

     DIR *d = opendir(".");
     closedir(d);