[libmicrohttpd] 03/03: sha-1 minor improvements

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karlson2k pushed a commit to branch master
in repository libmicrohttpd.

commit 7b3e010b6159017b65a1621478fc7b22e34df119
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Tue May 18 20:05:06 2021 +0300

    sha-1 minor improvements
---
 src/microhttpd/sha1.c |  7 +------
 src/microhttpd/sha1.h | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/src/microhttpd/sha1.c b/src/microhttpd/sha1.c
index 0d5fef72..2ed84208 100644
--- a/src/microhttpd/sha1.c
+++ b/src/microhttpd/sha1.c
@@ -54,11 +54,6 @@ MHD_SHA1_init (void *ctx_)
 }
 
 
-/**
- * Number of bytes in single SHA-1 word
- */
-#define SHA1_BYTES_IN_WORD (32 / 8)
-
 /**
  * Base of SHA-1 transformation.
  * Gets full 512 bits / 64 bytes block of data and updates hash values;
@@ -322,7 +317,7 @@ MHD_SHA1_finish (void *ctx_,
 
   num_bits = ctx->count << 3;
   /* Note: (count & (SHA1_BLOCK_SIZE-1))
-           equal (count % SHA1_BLOCK_SIZE) for this block size. */
+           equals (count % SHA1_BLOCK_SIZE) for this block size. */
   bytes_have = (unsigned) (ctx->count & (SHA1_BLOCK_SIZE - 1));
 
   /* Input data must be padded with bit "1" and with length of data in bits.
diff --git a/src/microhttpd/sha1.h b/src/microhttpd/sha1.h
index 800a4909..59f00217 100644
--- a/src/microhttpd/sha1.h
+++ b/src/microhttpd/sha1.h
@@ -28,17 +28,27 @@
 
 #include "mhd_options.h"
 #include <stdint.h>
-#include <stddef.h>
+#include <stddef.h> /* for size_t */
 
 /**
  *  SHA-1 digest is kept internally as 5 32-bit words.
  */
 #define _SHA1_DIGEST_LENGTH 5
 
+/**
+ * Number of bytes in single SHA-1 word
+ */
+#define SHA1_WORD_SIZE_BITS 32
+
+/**
+ * Number of bytes in single SHA-1 word
+ */
+#define SHA1_BYTES_IN_WORD (SHA1_WORD_SIZE_BITS / 8)
+
 /**
  * Size of SHA-1 digest in bytes
  */
-#define SHA1_DIGEST_SIZE (_SHA1_DIGEST_LENGTH * 4)
+#define SHA1_DIGEST_SIZE (_SHA1_DIGEST_LENGTH * SHA1_BYTES_IN_WORD)
 
 /**
  * Size of SHA-1 digest string in chars including termination NUL

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