1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin *                                                                      *
3da2e3ebdSchin *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5da2e3ebdSchin *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
77c2fbfb3SApril Chin *                    by AT&T Intellectual Property                     *
8da2e3ebdSchin *                                                                      *
9da2e3ebdSchin *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12da2e3ebdSchin *                                                                      *
13da2e3ebdSchin *              Information and Software Systems Research               *
14da2e3ebdSchin *                            AT&T Research                             *
15da2e3ebdSchin *                           Florham Park NJ                            *
16da2e3ebdSchin *                                                                      *
17da2e3ebdSchin *                 Glenn Fowler <gsf@research.att.com>                  *
18da2e3ebdSchin *                  David Korn <dgk@research.att.com>                   *
19da2e3ebdSchin *                   Phong Vo <kpv@research.att.com>                    *
20da2e3ebdSchin *                                                                      *
21da2e3ebdSchin ***********************************************************************/
22da2e3ebdSchin #pragma prototyped
23da2e3ebdSchin /*
24da2e3ebdSchin  * readdir
25da2e3ebdSchin  *
26da2e3ebdSchin  * read from directory stream
27da2e3ebdSchin  *
28da2e3ebdSchin  * NOTE: directory entries must fit within DIRBLKSIZ boundaries
29da2e3ebdSchin  */
30da2e3ebdSchin 
31da2e3ebdSchin #include "dirlib.h"
32da2e3ebdSchin 
33da2e3ebdSchin #if _dir_ok
34da2e3ebdSchin 
35da2e3ebdSchin NoN(readdir)
36da2e3ebdSchin 
37da2e3ebdSchin #else
38da2e3ebdSchin 
39da2e3ebdSchin struct dirent*
40da2e3ebdSchin readdir(register DIR* dirp)
41da2e3ebdSchin {
42da2e3ebdSchin 	register struct dirent*	dp;
43da2e3ebdSchin 
44da2e3ebdSchin 	for (;;)
45da2e3ebdSchin 	{
46da2e3ebdSchin 		if (dirp->dd_loc >= dirp->dd_size)
47da2e3ebdSchin 		{
48da2e3ebdSchin 			if (dirp->dd_size < 0) return(0);
49da2e3ebdSchin 			dirp->dd_loc = 0;
50da2e3ebdSchin 			if ((dirp->dd_size = getdents(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
51da2e3ebdSchin 				return(0);
52da2e3ebdSchin 		}
53da2e3ebdSchin 		dp = (struct dirent*)((char*)dirp->dd_buf + dirp->dd_loc);
54da2e3ebdSchin 		if (dp->d_reclen <= 0) return(0);
55da2e3ebdSchin 		dirp->dd_loc += dp->d_reclen;
56da2e3ebdSchin 		if (dp->d_fileno) return(dp);
57da2e3ebdSchin 	}
58da2e3ebdSchin 	/*NOTREACHED*/
59da2e3ebdSchin }
60da2e3ebdSchin 
61da2e3ebdSchin #endif
62