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The C and C++ Include Header Files

/usr/include/openssl/sha.h


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

     1	/*
     2	 * Copyright 1995-2021 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 SHA224_DIGEST_LENGTH    28
    85	# define SHA256_DIGEST_LENGTH    32
    86	# define SHA384_DIGEST_LENGTH    48
    87	# define SHA512_DIGEST_LENGTH    64
    88	
    89	# ifndef OPENSSL_NO_DEPRECATED_3_0
    90	/*
    91	 * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
    92	 * being exactly 64-bit wide. See Implementation Notes in sha512.c
    93	 * for further details.
    94	 */
    95	/*
    96	 * SHA-512 treats input data as a
    97	 * contiguous array of 64 bit
    98	 * wide big-endian values.
    99	 */
   100	#  define SHA512_CBLOCK   (SHA_LBLOCK*8)
   101	#  if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
   102	#   define SHA_LONG64 unsigned __int64
   103	#  elif defined(__arch64__)
   104	#   define SHA_LONG64 unsigned long
   105	#  else
   106	#   define SHA_LONG64 unsigned long long
   107	#  endif
   108	
   109	typedef struct SHA512state_st {
   110	    SHA_LONG64 h[8];
   111	    SHA_LONG64 Nl, Nh;
   112	    union {
   113	        SHA_LONG64 d[SHA_LBLOCK];
   114	        unsigned char p[SHA512_CBLOCK];
   115	    } u;
   116	    unsigned int num, md_len;
   117	} SHA512_CTX;
   118	
   119	OSSL_DEPRECATEDIN_3_0 int SHA384_Init(SHA512_CTX *c);
   120	OSSL_DEPRECATEDIN_3_0 int SHA384_Update(SHA512_CTX *c,
   121	                                        const void *data, size_t len);
   122	OSSL_DEPRECATEDIN_3_0 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
   123	OSSL_DEPRECATEDIN_3_0 int SHA512_Init(SHA512_CTX *c);
   124	OSSL_DEPRECATEDIN_3_0 int SHA512_Update(SHA512_CTX *c,
   125	                                        const void *data, size_t len);
   126	OSSL_DEPRECATEDIN_3_0 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
   127	OSSL_DEPRECATEDIN_3_0 void SHA512_Transform(SHA512_CTX *c,
   128	                                            const unsigned char *data);
   129	# endif
   130	
   131	unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md);
   132	unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md);
   133	
   134	# ifdef  __cplusplus
   135	}
   136	# endif
   137	
   138	#endif