Move fio to seperate repo
diff --git a/md5.h b/md5.h
new file mode 100644
index 0000000..9d1cf4c
--- /dev/null
+++ b/md5.h
@@ -0,0 +1,27 @@
+#ifndef MD5_H
+#define MD5_H
+
+#include <stdint.h>
+
+#define MD5_DIGEST_SIZE 16
+#define MD5_HMAC_BLOCK_SIZE 64
+#define MD5_BLOCK_WORDS 16
+#define MD5_HASH_WORDS 4
+
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+#define MD5STEP(f, w, x, y, z, in, s) \
+ (w += f(x, y, z) + in, w = (w<<s | w>>(32-s)) + x)
+
+struct md5_ctx {
+ uint32_t hash[MD5_HASH_WORDS];
+ uint32_t block[MD5_BLOCK_WORDS];
+ uint64_t byte_count;
+};
+
+extern void md5_update(struct md5_ctx *, const uint8_t *, unsigned int);
+
+#endif