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-rw-r--r--libc/misc/dirent/rewinddir.c6
1 files changed, 6 insertions, 0 deletions
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
}