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

Retired package: Release invalid - Use 3.0.1 instead
Security advisory: This version has known vulnerabilities. View advisories
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hackney c_src boringssl crypto bcm_support.h
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c_src/boringssl/crypto/bcm_support.h 

// Copyright 2024 The BoringSSL Authors

//

// 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_BCM_SUPPORT_H

#define OPENSSL_HEADER_CRYPTO_BCM_SUPPORT_H



#include <openssl/base.h>



#include <stdio.h>



// Provided by libcrypto, called from BCM



#if defined(__cplusplus)

extern "C" {

#endif



// Provided by libcrypto, called from BCM



// CRYPTO_init_sysrand initializes long-lived resources needed to draw entropy

// from the operating system, if the operating system requires initialization.

void CRYPTO_init_sysrand(void);



// CRYPTO_sysrand fills |len| bytes at |buf| with entropy from the operating

// system.

void CRYPTO_sysrand(uint8_t *buf, size_t len);



// RAND_need_entropy is called whenever the BCM module has stopped because it

// has run out of entropy.

void RAND_need_entropy(size_t bytes_needed);



// crypto_get_fork_generation returns the fork generation number for the current

// process, or zero if not supported on the platform. The fork generation number

// is a non-zero, strictly-monotonic counter with the property that, if queried

// in an address space and then again in a subsequently forked copy, the forked

// address space will observe a greater value.

//

// This function may be used to clear cached values across a fork. When

// initializing a cache, record the fork generation. Before using the cache,

// check if the fork generation has changed. If so, drop the cache and update

// the save fork generation. Note this logic transparently handles platforms

// which always return zero.

//

// This is not reliably supported on all platforms which implement |fork|, so it

// should only be used as a hardening measure.

OPENSSL_EXPORT uint64_t CRYPTO_get_fork_generation(void);



// CRYPTO_fork_detect_force_madv_wipeonfork_for_testing is an internal detail

// used for testing purposes.

OPENSSL_EXPORT void CRYPTO_fork_detect_force_madv_wipeonfork_for_testing(

    int on);



// CRYPTO_get_stderr returns stderr. This function exists to avoid BCM needing

// a data dependency on libc.

FILE *CRYPTO_get_stderr(void);





#if defined(__cplusplus)

}  // extern C

#endif



#endif  // OPENSSL_HEADER_CRYPTO_BCM_SUPPORT_H