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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support

Security advisory: This version has known vulnerabilities. View advisories
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hackney c_src boringssl crypto fipsmodule digest internal.h
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c_src/boringssl/crypto/fipsmodule/digest/internal.h 

// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.



#ifndef OPENSSL_HEADER_CRYPTO_FIPSMODULE_DIGEST_INTERNAL_H

#define OPENSSL_HEADER_CRYPTO_FIPSMODULE_DIGEST_INTERNAL_H



#include <openssl/base.h>



#if defined(__cplusplus)

extern "C" {

#endif





// env_md_st is typoed ("evp" -> "env"), but the typo comes from OpenSSL and

// some consumers forward-declare these structures so we're leaving it alone.

struct env_md_st {

  // type contains a NID identifying the digest function. (For example,

  // NID_md5.)

  int type;



  // md_size contains the size, in bytes, of the resulting digest.

  unsigned md_size;



  // flags contains the OR of |EVP_MD_FLAG_*| values.

  uint32_t flags;



  // init initialises the state in |ctx->md_data|.

  void (*init)(EVP_MD_CTX *ctx);



  // update hashes |len| bytes of |data| into the state in |ctx->md_data|.

  void (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);



  // final completes the hash and writes |md_size| bytes of digest to |out|.

  void (*final)(EVP_MD_CTX *ctx, uint8_t *out);



  // block_size contains the hash's native block size.

  unsigned block_size;



  // ctx_size contains the size, in bytes, of the state of the hash function.

  unsigned ctx_size;

};



// evp_md_pctx_ops contains function pointers to allow the |pctx| member of

// |EVP_MD_CTX| to be manipulated without breaking layering by calling EVP

// functions.

struct evp_md_pctx_ops {

  // free is called when an |EVP_MD_CTX| is being freed and the |pctx| also

  // needs to be freed.

  void (*free)(EVP_PKEY_CTX *pctx);



  // dup is called when an |EVP_MD_CTX| is copied and so the |pctx| also needs

  // to be copied.

  EVP_PKEY_CTX *(*dup)(EVP_PKEY_CTX *pctx);

};





#if defined(__cplusplus)

}  // extern C

#endif



#endif  // OPENSSL_HEADER_CRYPTO_FIPSMODULE_DIGEST_INTERNAL_H