X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=crc%2Fmd5.c;h=64fe48a9a432cad8afe96cfc72b88428cec1c43a;hb=876e10015bc3191a71512c3ae57482bf1add4e0e;hp=0da85e43f3c50fbfd23c12021e6b1f32d949f269;hpb=25dfa848abbb6c35b4d45fabd5a8e82cb77fb285;p=fio.git

diff --git a/crc/md5.c b/crc/md5.c
index 0da85e43..64fe48a9 100644
--- a/crc/md5.c
+++ b/crc/md5.c
@@ -125,3 +125,23 @@ void fio_md5_update(struct fio_md5_ctx *mctx, const uint8_t *data,
 
 	memcpy(mctx->block, data, len);
 }
+
+void fio_md5_final(struct fio_md5_ctx *mctx)
+{
+	const unsigned int offset = mctx->byte_count & 0x3f;
+	char *p = (char *)mctx->block + offset;
+	int padding = 56 - (offset + 1);
+
+	*p++ = 0x80;
+	if (padding < 0) {
+		memset(p, 0x00, padding + sizeof (uint64_t));
+		md5_transform(mctx->hash, mctx->block);
+		p = (char *)mctx->block;
+		padding = 56;
+	}
+
+	memset(p, 0, padding);
+	mctx->block[14] = mctx->byte_count << 3;
+	mctx->block[15] = mctx->byte_count >> 29;
+	md5_transform(mctx->hash, mctx->block);
+}