refactor sha: used void pointer in update functions

include/bfdev/sha1.h

@@ -32,7 +32,7 @@ struct bfdev_sha1_ctx {
 };
 
 extern void
-bfdev_sha1_update(bfdev_sha1_ctx_t *ctx, const char *data, size_t size);
+bfdev_sha1_update(bfdev_sha1_ctx_t *ctx, const void *data, size_t size);
 
 extern void
 bfdev_sha1_finish(bfdev_sha1_ctx_t *ctx, void *hash);

include/bfdev/sha2.h

@@ -47,7 +47,7 @@ struct bfdev_sha2_ctx {
 };
 
 extern void
-bfdev_sha2_update(bfdev_sha2_ctx_t *ctx, const char *data, size_t size);
+bfdev_sha2_update(bfdev_sha2_ctx_t *ctx, const void *data, size_t size);
 
 extern void
 bfdev_sha224_finish(bfdev_sha2_ctx_t *ctx, void *hash);

src/crypto/sha1.c

@@ -21,7 +21,7 @@ sha1_transform_block(bfdev_sha1_ctx_t *ctx, const void *src, size_t blocks)
 }
 
 export void
-bfdev_sha1_update(bfdev_sha1_ctx_t *ctx, const char *data, size_t size)
+bfdev_sha1_update(bfdev_sha1_ctx_t *ctx, const void *data, size_t size)
 {
     bfdev_sha1_base_update(ctx, data, size, sha1_transform_block);
 }

src/crypto/sha2.c

@@ -21,7 +21,7 @@ sha2_transform_block(bfdev_sha2_ctx_t *ctx, const void *src, size_t blocks)
 }
 
 export void
-bfdev_sha2_update(bfdev_sha2_ctx_t *ctx, const char *data, size_t size)
+bfdev_sha2_update(bfdev_sha2_ctx_t *ctx, const void *data, size_t size)
 {
     bfdev_sha2_base_update(ctx, data, size, sha2_transform_block);
 }