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The C and C++ Include Header Files

cat -n /usr/include/openssl/sha.h

     1	/*
     2	 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
     3	 *
     4	 * Licensed under the Apache License 2.0 (the "License").  You may not use
     5	 * this file except in compliance with the License.  You can obtain a copy
     6	 * in the file LICENSE in the source distribution or at
     7	 * https://www.openssl.org/source/license.html
     8	 */
     9	
    10	#ifndef OPENSSL_SHA_H
    11	#define OPENSSL_SHA_H
    12	#pragma once
    13	
    14	#include <openssl/macros.h>
    15	#ifndef OPENSSL_NO_DEPRECATED_3_0
    16	#define HEADER_SHA_H
    17	#endif
    18	
    19	#include <openssl/e_os2.h>
    20	#include <stddef.h>
    21	
    22	#ifdef __cplusplus
    23	extern "C" {
    24	#endif
    25	
    26	#define SHA_DIGEST_LENGTH 20
    27	
    28	#ifndef OPENSSL_NO_DEPRECATED_3_0
    29	/*-
    30	 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    31	 * ! SHA_LONG has to be at least 32 bits wide.                    !
    32	 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    33	 */
    34	#define SHA_LONG unsigned int
    35	
    36	#define SHA_LBLOCK 16
    37	#define SHA_CBLOCK (SHA_LBLOCK * 4) /* SHA treats input data as a      \
    38	                                     * contiguous array of 32 bit wide \
    39	                                     * big-endian values. */
    40	#define SHA_LAST_BLOCK (SHA_CBLOCK - 8)
    41	
    42	typedef struct SHAstate_st {
    43	    SHA_LONG h0, h1, h2, h3, h4;
    44	    SHA_LONG Nl, Nh;
    45	    SHA_LONG data[SHA_LBLOCK];
    46	    unsigned int num;
    47	} SHA_CTX;
    48	
    49	OSSL_DEPRECATEDIN_3_0 int SHA1_Init(SHA_CTX *c);
    50	OSSL_DEPRECATEDIN_3_0 int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
    51	OSSL_DEPRECATEDIN_3_0 int SHA1_Final(unsigned char *md, SHA_CTX *c);
    52	OSSL_DEPRECATEDIN_3_0 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
    53	#endif
    54	
    55	unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
    56	
    57	#ifndef OPENSSL_NO_DEPRECATED_3_0
    58	#define SHA256_CBLOCK (SHA_LBLOCK * 4) /* SHA-256 treats input data as a  \
    59	                                        * contiguous array of 32 bit wide \
    60	                                        * big-endian values. */
    61	
    62	typedef struct SHA256state_st {
    63	    SHA_LONG h[8];
    64	    SHA_LONG Nl, Nh;
    65	    SHA_LONG data[SHA_LBLOCK];
    66	    unsigned int num, md_len;
    67	} SHA256_CTX;
    68	
    69	OSSL_DEPRECATEDIN_3_0 int SHA224_Init(SHA256_CTX *c);
    70	OSSL_DEPRECATEDIN_3_0 int SHA224_Update(SHA256_CTX *c,
    71	    const void *data, size_t len);
    72	OSSL_DEPRECATEDIN_3_0 int SHA224_Final(unsigned char *md, SHA256_CTX *c);
    73	OSSL_DEPRECATEDIN_3_0 int SHA256_Init(SHA256_CTX *c);
    74	OSSL_DEPRECATEDIN_3_0 int SHA256_Update(SHA256_CTX *c,
    75	    const void *data, size_t len);
    76	OSSL_DEPRECATEDIN_3_0 int SHA256_Final(unsigned char *md, SHA256_CTX *c);
    77	OSSL_DEPRECATEDIN_3_0 void SHA256_Transform(SHA256_CTX *c,
    78	    const unsigned char *data);
    79	#endif
    80	
    81	unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md);
    82	unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
    83	
    84	#define SHA256_192_DIGEST_LENGTH 24
    85	#define SHA224_DIGEST_LENGTH 28
    86	#define SHA256_DIGEST_LENGTH 32
    87	#define SHA384_DIGEST_LENGTH 48
    88	#define SHA512_DIGEST_LENGTH 64
    89	
    90	#ifndef OPENSSL_NO_DEPRECATED_3_0
    91	/*
    92	 * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
    93	 * being exactly 64-bit wide. See Implementation Notes in sha512.c
    94	 * for further details.
    95	 */
    96	/*
    97	 * SHA-512 treats input data as a
    98	 * contiguous array of 64 bit
    99	 * wide big-endian values.
   100	 */
   101	#define SHA512_CBLOCK (SHA_LBLOCK * 8)
   102	#if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
   103	#define SHA_LONG64 unsigned __int64
   104	#elif defined(__arch64__)
   105	#define SHA_LONG64 unsigned long
   106	#else
   107	#define SHA_LONG64 unsigned long long
   108	#endif
   109	
   110	typedef struct SHA512state_st {
   111	    SHA_LONG64 h[8];
   112	    SHA_LONG64 Nl, Nh;
   113	    union {
   114	        SHA_LONG64 d[SHA_LBLOCK];
   115	        unsigned char p[SHA512_CBLOCK];
   116	    } u;
   117	    unsigned int num, md_len;
   118	} SHA512_CTX;
   119	
   120	OSSL_DEPRECATEDIN_3_0 int SHA384_Init(SHA512_CTX *c);
   121	OSSL_DEPRECATEDIN_3_0 int SHA384_Update(SHA512_CTX *c,
   122	    const void *data, size_t len);
   123	OSSL_DEPRECATEDIN_3_0 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
   124	OSSL_DEPRECATEDIN_3_0 int SHA512_Init(SHA512_CTX *c);
   125	OSSL_DEPRECATEDIN_3_0 int SHA512_Update(SHA512_CTX *c,
   126	    const void *data, size_t len);
   127	OSSL_DEPRECATEDIN_3_0 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
   128	OSSL_DEPRECATEDIN_3_0 void SHA512_Transform(SHA512_CTX *c,
   129	    const unsigned char *data);
   130	#endif
   131	
   132	unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md);
   133	unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md);
   134	
   135	#ifdef __cplusplus
   136	}
   137	#endif
   138	
   139	#endif