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33 * $FreeBSD: src/lib/libc/gen/readdir.c,v 1.5.2.4 2002/02/26 22:53:57 alfred Exp $
34 * $DragonFly: src/lib/libc/gen/readdir.c,v 1.4 2005/02/08 04:07:57 drhodus Exp $
36 * @(#)readdir.c 8.3 (Berkeley) 9/29/94
39 #include "namespace.h"
40 #include <sys/param.h>
45 #include "un-namespace.h"
47 #include "libc_private.h"
50 * get next entry in a directory.
53 _readdir_unlocked(dirp)
59 if (dirp->dd_loc >= dirp->dd_size) {
60 if (dirp->dd_flags & __DTF_READALL)
64 if (dirp->dd_loc == 0 && !(dirp->dd_flags & __DTF_READALL)) {
65 dirp->dd_size = _getdirentries(dirp->dd_fd,
66 dirp->dd_buf, dirp->dd_len, &dirp->dd_seek);
67 if (dirp->dd_size <= 0)
70 dp = (struct dirent *)(dirp->dd_buf + dirp->dd_loc);
71 if ((long)dp & 03L) /* bogus pointer check */
73 if (dp->d_reclen <= 0 ||
74 dp->d_reclen > dirp->dd_len + 1 - dirp->dd_loc)
76 dirp->dd_loc += dp->d_reclen;
79 if (dp->d_type == DT_WHT && (dirp->dd_flags & DTF_HIDEW))
92 _pthread_mutex_lock((pthread_mutex_t *)&dirp->dd_lock);
93 dp = _readdir_unlocked(dirp);
94 _pthread_mutex_unlock((pthread_mutex_t *)&dirp->dd_lock);
97 dp = _readdir_unlocked(dirp);
102 readdir_r(dirp, entry, result)
104 struct dirent *entry;
105 struct dirent **result;
108 int ret, saved_errno;
113 _pthread_mutex_lock((pthread_mutex_t *)&dirp->dd_lock);
114 if ((dp = _readdir_unlocked(dirp)) != NULL)
115 memcpy(entry, dp, sizeof *entry);
116 _pthread_mutex_unlock((pthread_mutex_t *)&dirp->dd_lock);
118 else if ((dp = _readdir_unlocked(dirp)) != NULL)
119 memcpy(entry, dp, sizeof *entry);