usr/src/lib/libc/gen/closedir.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)closedir.c  5.5 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/param.h>
#include <dirent.h>

/*
 * close a directory.
 */
void
closedir(dirp)
        register DIR *dirp;
{
        register struct ddloc *lp, *olp;
        register int i;

        close(dirp->dd_fd);
        dirp->dd_fd = -1;
        dirp->dd_loc = 0;
        for (i = 0; i < NDIRHASH; i++) {
                lp = dirp->dd_hash[i];
                while (lp != NULL) {
                        olp = lp;
                        lp = lp->loc_next;
                        free((caddr_t) olp);
                }
        }
        free(dirp->dd_buf);
        free((caddr_t)dirp);
}