Zabbix

/* SHA512-based Unix crypt implementation.

Released into the Public Domain by Ulrich Drepper <drepper@redhat.com>.  */

​

#include "zbxhash.h"

​

#ifdef __linux__

    #include <endian.h>

#elif __hpux

/* Nothing to do in HP-UX */

#elif _AIX

/* Nothing to do in AIX */

#else

    #if defined(ZBX_OLD_SOLARIS)

        #include <sys/isa_defs.h>

    #else

        #include <machine/endian.h>

    #endif

#endif

#include <stdint.h>

#include <stdio.h>

#include <string.h>

​

/* Structure to save state of computation between the single steps.  */

struct sha512_ctx

{

    uint64_t H[8];

​

    uint64_t total[2];

    uint64_t buflen;

    char buffer[256];   /* NB: always correctly aligned for uint64_t.  */

};

​

#if __BYTE_ORDER == __LITTLE_ENDIAN

# define SWAP(n) \

    (((n) << 56)                    \

    | (((n) & 0xff00) << 40)            \

    | (((n) & 0xff0000) << 24)          \

    | (((n) & 0xff000000) << 8)         \

    | (((n) >> 8) & 0xff000000)         \

    | (((n) >> 24) & 0xff0000)          \

    | (((n) >> 40) & 0xff00)            \

    | ((n) >> 56))

#else

# define SWAP(n) (n)

#endif

​

/* This array contains the bytes used to pad the buffer to the next

64-byte boundary.  (FIPS 180-2:5.1.2)  */

static const unsigned char fillbuf[128] = { 0x80, 0 /* , 0, 0, ...  */ };

​

/* Constants for SHA512 from FIPS 180-2:4.2.3.  */

static const uint64_t K[80] =

{

    UINT64_C (0x428a2f98d728ae22), UINT64_C (0x7137449123ef65cd),

    UINT64_C (0xb5c0fbcfec4d3b2f), UINT64_C (0xe9b5dba58189dbbc),

    UINT64_C (0x3956c25bf348b538), UINT64_C (0x59f111f1b605d019),

    UINT64_C (0x923f82a4af194f9b), UINT64_C (0xab1c5ed5da6d8118),

    UINT64_C (0xd807aa98a3030242), UINT64_C (0x12835b0145706fbe),

    UINT64_C (0x243185be4ee4b28c), UINT64_C (0x550c7dc3d5ffb4e2),

    UINT64_C (0x72be5d74f27b896f), UINT64_C (0x80deb1fe3b1696b1),

    UINT64_C (0x9bdc06a725c71235), UINT64_C (0xc19bf174cf692694),

    UINT64_C (0xe49b69c19ef14ad2), UINT64_C (0xefbe4786384f25e3),

    UINT64_C (0x0fc19dc68b8cd5b5), UINT64_C (0x240ca1cc77ac9c65),

    UINT64_C (0x2de92c6f592b0275), UINT64_C (0x4a7484aa6ea6e483),

    UINT64_C (0x5cb0a9dcbd41fbd4), UINT64_C (0x76f988da831153b5),

    UINT64_C (0x983e5152ee66dfab), UINT64_C (0xa831c66d2db43210),

    UINT64_C (0xb00327c898fb213f), UINT64_C (0xbf597fc7beef0ee4),

    UINT64_C (0xc6e00bf33da88fc2), UINT64_C (0xd5a79147930aa725),

    UINT64_C (0x06ca6351e003826f), UINT64_C (0x142929670a0e6e70),

    UINT64_C (0x27b70a8546d22ffc), UINT64_C (0x2e1b21385c26c926),

    UINT64_C (0x4d2c6dfc5ac42aed), UINT64_C (0x53380d139d95b3df),

    UINT64_C (0x650a73548baf63de), UINT64_C (0x766a0abb3c77b2a8),

    UINT64_C (0x81c2c92e47edaee6), UINT64_C (0x92722c851482353b),

    UINT64_C (0xa2bfe8a14cf10364), UINT64_C (0xa81a664bbc423001),

    UINT64_C (0xc24b8b70d0f89791), UINT64_C (0xc76c51a30654be30),

    UINT64_C (0xd192e819d6ef5218), UINT64_C (0xd69906245565a910),

    UINT64_C (0xf40e35855771202a), UINT64_C (0x106aa07032bbd1b8),

    UINT64_C (0x19a4c116b8d2d0c8), UINT64_C (0x1e376c085141ab53),

    UINT64_C (0x2748774cdf8eeb99), UINT64_C (0x34b0bcb5e19b48a8),

    UINT64_C (0x391c0cb3c5c95a63), UINT64_C (0x4ed8aa4ae3418acb),

    UINT64_C (0x5b9cca4f7763e373), UINT64_C (0x682e6ff3d6b2b8a3),

    UINT64_C (0x748f82ee5defb2fc), UINT64_C (0x78a5636f43172f60),

    UINT64_C (0x84c87814a1f0ab72), UINT64_C (0x8cc702081a6439ec),

    UINT64_C (0x90befffa23631e28), UINT64_C (0xa4506cebde82bde9),

    UINT64_C (0xbef9a3f7b2c67915), UINT64_C (0xc67178f2e372532b),

    UINT64_C (0xca273eceea26619c), UINT64_C (0xd186b8c721c0c207),

    UINT64_C (0xeada7dd6cde0eb1e), UINT64_C (0xf57d4f7fee6ed178),

    UINT64_C (0x06f067aa72176fba), UINT64_C (0x0a637dc5a2c898a6),

    UINT64_C (0x113f9804bef90dae), UINT64_C (0x1b710b35131c471b),

    UINT64_C (0x28db77f523047d84), UINT64_C (0x32caab7b40c72493),

    UINT64_C (0x3c9ebe0a15c9bebc), UINT64_C (0x431d67c49c100d4c),