Latest update

providers/default/digests/null_prov.c

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+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/core_numbers.h>
+#include <openssl/whrlpool.h>
+#include "internal/provider_algs.h"
+
+static int nullmd_dummy = 1;
+
+static OSSL_OP_digest_init_fn nullmd_init;
+static OSSL_OP_digest_update_fn nullmd_update;
+static OSSL_OP_digest_final_fn nullmd_final;
+static OSSL_OP_digest_newctx_fn nullmd_newctx;
+static OSSL_OP_digest_freectx_fn nullmd_freectx;
+static OSSL_OP_digest_dupctx_fn nullmd_dupctx;
+static OSSL_OP_digest_size_fn nullmd_size;
+static OSSL_OP_digest_block_size_fn nullmd_block_size;
+
+static size_t nullmd_block_size(void)
+{
+    return 0;
+}
+
+static size_t nullmd_size(void)
+{
+    return 0;
+}
+
+static int nullmd_init(void *vctx)
+{
+    return 1;
+}
+
+static int nullmd_update(void *vctx, const unsigned char *inp, size_t bytes)
+{
+    return 1;
+}
+
+static int nullmd_final(void *ctx, unsigned char *out, size_t *outl, size_t outsz)
+{
+    *outl = 0;
+    return 1;
+}
+
+static void *nullmd_newctx(void *prov_ctx)
+{
+    return &nullmd_dummy;
+}
+
+static void nullmd_freectx(void *vctx)
+{
+}
+
+static void *nullmd_dupctx(void *ctx)
+{
+    return &nullmd_dummy;
+}
+
+const OSSL_DISPATCH nullmd_functions[] = {
+    { OSSL_FUNC_DIGEST_NEWCTX, (void (*)(void))nullmd_newctx },
+    { OSSL_FUNC_DIGEST_INIT, (void (*)(void))nullmd_init },
+    { OSSL_FUNC_DIGEST_UPDATE, (void (*)(void))nullmd_update },
+    { OSSL_FUNC_DIGEST_FINAL, (void (*)(void))nullmd_final },
+    { OSSL_FUNC_DIGEST_FREECTX, (void (*)(void))nullmd_freectx },
+    { OSSL_FUNC_DIGEST_DUPCTX, (void (*)(void))nullmd_dupctx },
+    { OSSL_FUNC_DIGEST_SIZE, (void (*)(void))nullmd_size },
+    { OSSL_FUNC_DIGEST_BLOCK_SIZE, (void (*)(void))nullmd_block_size },
+    { 0, NULL }
+};