X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;ds=sidebyside;f=md5.c;h=8f9adb22ee745e41a8a212654524cefb67e8fd55;hb=61f821f16cf27d8742e09b3a137c933cd0085e9b;hp=6b61012e85da005d418a7c4ea1ef22349038ed82;hpb=8c432325c3df2075a77b27eab8a87704cf7b48ee;p=fio.git

diff --git a/md5.c b/md5.c
index 6b61012e..8f9adb22 100644
--- a/md5.c
+++ b/md5.c
@@ -9,11 +9,10 @@ static void md5_transform(uint32_t *hash, uint32_t const *in)
 {
 	uint32_t a, b, c, d;
 
-	/*
-	 * This used to be set from the hash[0..3] input, but we can
-	 * skip a memory clear if we just start from 0 instead.
-	 */
-	a = b = c = d = 0;
+	a = hash[0];
+	b = hash[1];
+	c = hash[2];
+	d = hash[3];
 
 	MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
 	MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
@@ -83,10 +82,18 @@ static void md5_transform(uint32_t *hash, uint32_t const *in)
 	MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
 	MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
 
-	hash[0] = a;
-	hash[1] = b;
-	hash[2] = c;
-	hash[3] = d;
+	hash[0] += a;
+	hash[1] += b;
+	hash[2] += c;
+	hash[3] += d;
+}
+
+void md5_init(struct md5_ctx *mctx)
+{
+	mctx->hash[0] = 0x67452301;
+	mctx->hash[1] = 0xefcdab89;
+	mctx->hash[2] = 0x98badcfe;
+	mctx->hash[3] = 0x10325476;
 }
 
 void md5_update(struct md5_ctx *mctx, const uint8_t *data, unsigned int len)