From a4f07581502ee212aa45e7b0049fdd126dd10b40 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Sat, 11 May 2002 00:26:15 +0000
Subject: Implement readdir_r.  Audit for proper thread safety and locking. 
 -Erik

---
 libc/misc/dirent/rewinddir.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libc/misc/dirent/rewinddir.c')

diff --git a/libc/misc/dirent/rewinddir.c b/libc/misc/dirent/rewinddir.c
index 495594089..a541f8963 100644
--- a/libc/misc/dirent/rewinddir.c
+++ b/libc/misc/dirent/rewinddir.c
@@ -11,6 +11,12 @@ void rewinddir(DIR * dir)
 		__set_errno(EBADF);
 		return;
 	}
+#ifdef _POSIX_THREADS
+	pthread_mutex_lock(dir->dd_lock);
+#endif
 	lseek(dir->dd_fd, 0, SEEK_SET);
 	dir->dd_nextoff = dir->dd_nextloc = dir->dd_size = 0;
+#ifdef _POSIX_THREADS
+	pthread_mutex_unlock(dir->dd_lock);
+#endif
 }
-- 
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