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Diffstat (limited to 'libbb')
-rw-r--r--libbb/sha1.c33
1 files changed, 16 insertions, 17 deletions
diff --git a/libbb/sha1.c b/libbb/sha1.c
index a86218b25..34813e24a 100644
--- a/libbb/sha1.c
+++ b/libbb/sha1.c
@@ -26,27 +26,28 @@
#include "libbb.h"
-# define SHA1_BLOCK_SIZE 64
-# define SHA1_DIGEST_SIZE 20
-# define SHA1_HASH_SIZE SHA1_DIGEST_SIZE
-# define SHA2_GOOD 0
-# define SHA2_BAD 1
+#define SHA1_BLOCK_SIZE 64
+#define SHA1_DIGEST_SIZE 20
+#define SHA1_HASH_SIZE SHA1_DIGEST_SIZE
+#define SHA2_GOOD 0
+#define SHA2_BAD 1
-# define rotl32(x,n) (((x) << n) | ((x) >> (32 - n)))
+#define rotl32(x,n) (((x) << n) | ((x) >> (32 - n)))
-# define SHA1_MASK (SHA1_BLOCK_SIZE - 1)
+#define SHA1_MASK (SHA1_BLOCK_SIZE - 1)
/* reverse byte order in 32-bit words */
-#define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
-#define parity(x,y,z) ((x) ^ (y) ^ (z))
-#define maj(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
+#define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
+#define parity(x,y,z) ((x) ^ (y) ^ (z))
+#define maj(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
/* A normal version as set out in the FIPS. This version uses */
/* partial loop unrolling and is optimised for the Pentium 4 */
-# define rnd(f,k) \
- t = a; a = rotl32(a,5) + f(b,c,d) + e + k + w[i]; \
- e = d; d = c; c = rotl32(b, 30); b = t
-
+#define rnd(f,k) \
+ do { \
+ t = a; a = rotl32(a,5) + f(b,c,d) + e + k + w[i]; \
+ e = d; d = c; c = rotl32(b, 30); b = t; \
+ } while(0)
static void sha1_compile(sha1_ctx_t *ctx)
{
@@ -160,7 +161,7 @@ void *sha1_end(void *resbuf, sha1_ctx_t *ctx)
ctx->wbuf[cnt++] = 0;
/* assemble the eight byte counter in the buffer in big-endian */
- /* format */
+ /* format */
ctx->wbuf[14] = htonl((ctx->count[1] << 3) | (ctx->count[0] >> 29));
ctx->wbuf[15] = htonl(ctx->count[0] << 3);
@@ -175,5 +176,3 @@ void *sha1_end(void *resbuf, sha1_ctx_t *ctx)
return resbuf;
}
-
-