return 0 not null string when user has a ctty but no utmp entry

[unix-history] / usr / src / lib / libc / gen / closedir.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)closedir.c	5.2 (Berkeley) %G%";
#endif LIBC_SCCS and not lint

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

/*
 * close a directory.
 */
void
closedir(dirp)
	register DIR *dirp;
{
	close(dirp->dd_fd);
	dirp->dd_fd = -1;
	dirp->dd_loc = 0;
	free(dirp);
}