adtools/clib2

/*
 * $Id: dirent_rewinddir.c,v 1.5 2006-01-08 12:04:22 obarthel Exp $
 *
 * :ts=4
 *
 * Portable ISO 'C' (1994) runtime library for the Amiga computer
 * Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Neither the name of Olaf Barthel nor the names of contributors
 *     may be used to endorse or promote products derived from this
 *     software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _DIRENT_HEADERS_H
#include "dirent_headers.h"
#endif /* _DIRENT_HEADERS_H */

/****************************************************************************/

/* The following is not part of the ISO 'C' (1994) standard. */

/****************************************************************************/

void
rewinddir(DIR * directory_pointer)
{
    ENTER();

    SHOWPOINTER(directory_pointer);

    if(__check_abort_enabled)
        __check_abort();

    PROFILE_OFF();

    if(directory_pointer != NULL)
    {
        struct DirectoryHandle * dh;

        dh = (struct DirectoryHandle *)directory_pointer;

        dh->dh_Position = 0;

        if(dh->dh_ScanVolumeList)
        {
            SHOWMSG("returning to first volume");

            dh->dh_VolumeNode = NULL;
        }
        else
        {
            SHOWMSG("calling Examine() again");

            assert( (((ULONG)&dh->dh_FileInfo) & 3) == 0 );

            if(CANNOT Examine(dh->dh_DirLock,&dh->dh_FileInfo))
            {
                SHOWMSG("ouch. that didn't work");
                __set_errno(__translate_io_error_to_errno(IoErr()));
            }
        }
    }

    PROFILE_ON();

    LEAVE();
}