Add a "fork" of musl as //fusl.
This is musl verbatim at d5f8394f6ea9549607567bd92de12a2446c15614.
See http://www.musl-libc.org/.
R=kulakowski@chromium.org
Review URL: https://codereview.chromium.org/1573973002 .
diff --git a/fusl/src/dirent/opendir.c b/fusl/src/dirent/opendir.c
new file mode 100644
index 0000000..5cb84e3
--- /dev/null
+++ b/fusl/src/dirent/opendir.c
@@ -0,0 +1,21 @@
+#define _GNU_SOURCE
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include "__dirent.h"
+#include "syscall.h"
+
+DIR *opendir(const char *name)
+{
+ int fd;
+ DIR *dir;
+
+ if ((fd = open(name, O_RDONLY|O_DIRECTORY|O_CLOEXEC)) < 0)
+ return 0;
+ if (!(dir = calloc(1, sizeof *dir))) {
+ __syscall(SYS_close, fd);
+ return 0;
+ }
+ dir->fd = fd;
+ return dir;
+}
