Update sha1.c

1 files changed, 6 insertions, 3 deletions

diff --git a/lib/sha1.c b/lib/sha1.c
index 7920c96..7381c49 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -44,19 +44,22 @@
 
 void sha1_message_expansion(uint32_t W[80])
 {
-	for (unsigned i = 16; i < 80; ++i)
+	unsigned i;
+	for (i = 16; i < 80; ++i)
 		W[i] = rotate_left(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
 }
 
 void sha1_compression(uint32_t ihv[5], const uint32_t m[16])
 {
 	uint32_t W[80];
+	uint32_t a,b,c,d,e;
+	unsigned i;
 
 	memcpy(W, m, 16 * 4);
-	for (unsigned i = 16; i < 80; ++i)
+	for (i = 16; i < 80; ++i)
 		W[i] = rotate_left(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
 
-	uint32_t a = ihv[0], b = ihv[1], c = ihv[2], d = ihv[3], e = ihv[4];
+	a = ihv[0]; b = ihv[1]; c = ihv[2]; d = ihv[3]; e = ihv[4];
 
 	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(a, b, c, d, e, W, 0);
 	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(e, a, b, c, d, W, 1);