#include "md5-internal.h"
#include "string-private.h"
#if !defined(__APPLE__)
# define T1 0xd76aa478
# define T2 0xe8c7b756
# define T3 0x242070db
# define T4 0xc1bdceee
# define T5 0xf57c0faf
# define T6 0x4787c62a
# define T7 0xa8304613
# define T8 0xfd469501
# define T9 0x698098d8
# define T10 0x8b44f7af
# define T11 0xffff5bb1
# define T12 0x895cd7be
# define T13 0x6b901122
# define T14 0xfd987193
# define T15 0xa679438e
# define T16 0x49b40821
# define T17 0xf61e2562
# define T18 0xc040b340
# define T19 0x265e5a51
# define T20 0xe9b6c7aa
# define T21 0xd62f105d
# define T22 0x02441453
# define T23 0xd8a1e681
# define T24 0xe7d3fbc8
# define T25 0x21e1cde6
# define T26 0xc33707d6
# define T27 0xf4d50d87
# define T28 0x455a14ed
# define T29 0xa9e3e905
# define T30 0xfcefa3f8
# define T31 0x676f02d9
# define T32 0x8d2a4c8a
# define T33 0xfffa3942
# define T34 0x8771f681
# define T35 0x6d9d6122
# define T36 0xfde5380c
# define T37 0xa4beea44
# define T38 0x4bdecfa9
# define T39 0xf6bb4b60
# define T40 0xbebfbc70
# define T41 0x289b7ec6
# define T42 0xeaa127fa
# define T43 0xd4ef3085
# define T44 0x04881d05
# define T45 0xd9d4d039
# define T46 0xe6db99e5
# define T47 0x1fa27cf8
# define T48 0xc4ac5665
# define T49 0xf4292244
# define T50 0x432aff97
# define T51 0xab9423a7
# define T52 0xfc93a039
# define T53 0x655b59c3
# define T54 0x8f0ccc92
# define T55 0xffeff47d
# define T56 0x85845dd1
# define T57 0x6fa87e4f
# define T58 0xfe2ce6e0
# define T59 0xa3014314
# define T60 0x4e0811a1
# define T61 0xf7537e82
# define T62 0xbd3af235
# define T63 0x2ad7d2bb
# define T64 0xeb86d391
static void
_cups_md5_process(_cups_md5_state_t *pms, const unsigned char *data )
{
unsigned int
a = pms->abcd[0], b = pms->abcd[1],
c = pms->abcd[2], d = pms->abcd[3];
unsigned int t;
# ifndef ARCH_IS_BIG_ENDIAN
# define ARCH_IS_BIG_ENDIAN 1
# endif
# if ARCH_IS_BIG_ENDIAN
unsigned int X[16];
const unsigned char *xp = data;
int i;
for (i = 0; i < 16; ++i, xp += 4)
X[i] = (unsigned)xp[0] + ((unsigned)xp[1] << 8) +
((unsigned)xp[2] << 16) + ((unsigned)xp[3] << 24);
# else
unsigned int xbuf[16];
const unsigned int *X;
if (!((data - (const unsigned char *)0) & 3)) {
X = (const unsigned int *)data;
} else {
memcpy(xbuf, data, 64);
X = xbuf;
}
# endif
# define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
# define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
# define SET(a, b, c, d, k, s, Ti)\
t = a + F(b,c,d) + X[k] + Ti;\
a = ROTATE_LEFT(t, s) + b
SET(a, b, c, d, 0, 7, T1);
SET(d, a, b, c, 1, 12, T2);
SET(c, d, a, b, 2, 17, T3);
SET(b, c, d, a, 3, 22, T4);
SET(a, b, c, d, 4, 7, T5);
SET(d, a, b, c, 5, 12, T6);
SET(c, d, a, b, 6, 17, T7);
SET(b, c, d, a, 7, 22, T8);
SET(a, b, c, d, 8, 7, T9);
SET(d, a, b, c, 9, 12, T10);
SET(c, d, a, b, 10, 17, T11);
SET(b, c, d, a, 11, 22, T12);
SET(a, b, c, d, 12, 7, T13);
SET(d, a, b, c, 13, 12, T14);
SET(c, d, a, b, 14, 17, T15);
SET(b, c, d, a, 15, 22, T16);
# undef SET
# define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
# define SET(a, b, c, d, k, s, Ti)\
t = a + G(b,c,d) + X[k] + Ti;\
a = ROTATE_LEFT(t, s) + b
SET(a, b, c, d, 1, 5, T17);
SET(d, a, b, c, 6, 9, T18);
SET(c, d, a, b, 11, 14, T19);
SET(b, c, d, a, 0, 20, T20);
SET(a, b, c, d, 5, 5, T21);
SET(d, a, b, c, 10, 9, T22);
SET(c, d, a, b, 15, 14, T23);
SET(b, c, d, a, 4, 20, T24);
SET(a, b, c, d, 9, 5, T25);
SET(d, a, b, c, 14, 9, T26);
SET(c, d, a, b, 3, 14, T27);
SET(b, c, d, a, 8, 20, T28);
SET(a, b, c, d, 13, 5, T29);
SET(d, a, b, c, 2, 9, T30);
SET(c, d, a, b, 7, 14, T31);
SET(b, c, d, a, 12, 20, T32);
# undef SET
# define H(x, y, z) ((x) ^ (y) ^ (z))
# define SET(a, b, c, d, k, s, Ti)\
t = a + H(b,c,d) + X[k] + Ti;\
a = ROTATE_LEFT(t, s) + b
SET(a, b, c, d, 5, 4, T33);
SET(d, a, b, c, 8, 11, T34);
SET(c, d, a, b, 11, 16, T35);
SET(b, c, d, a, 14, 23, T36);
SET(a, b, c, d, 1, 4, T37);
SET(d, a, b, c, 4, 11, T38);
SET(c, d, a, b, 7, 16, T39);
SET(b, c, d, a, 10, 23, T40);
SET(a, b, c, d, 13, 4, T41);
SET(d, a, b, c, 0, 11, T42);
SET(c, d, a, b, 3, 16, T43);
SET(b, c, d, a, 6, 23, T44);
SET(a, b, c, d, 9, 4, T45);
SET(d, a, b, c, 12, 11, T46);
SET(c, d, a, b, 15, 16, T47);
SET(b, c, d, a, 2, 23, T48);
# undef SET
# define I(x, y, z) ((y) ^ ((x) | ~(z)))
# define SET(a, b, c, d, k, s, Ti)\
t = a + I(b,c,d) + X[k] + Ti;\
a = ROTATE_LEFT(t, s) + b
SET(a, b, c, d, 0, 6, T49);
SET(d, a, b, c, 7, 10, T50);
SET(c, d, a, b, 14, 15, T51);
SET(b, c, d, a, 5, 21, T52);
SET(a, b, c, d, 12, 6, T53);
SET(d, a, b, c, 3, 10, T54);
SET(c, d, a, b, 10, 15, T55);
SET(b, c, d, a, 1, 21, T56);
SET(a, b, c, d, 8, 6, T57);
SET(d, a, b, c, 15, 10, T58);
SET(c, d, a, b, 6, 15, T59);
SET(b, c, d, a, 13, 21, T60);
SET(a, b, c, d, 4, 6, T61);
SET(d, a, b, c, 11, 10, T62);
SET(c, d, a, b, 2, 15, T63);
SET(b, c, d, a, 9, 21, T64);
# undef SET
pms->abcd[0] += a;
pms->abcd[1] += b;
pms->abcd[2] += c;
pms->abcd[3] += d;
}
void
_cupsMD5Init(_cups_md5_state_t *pms)
{
pms->count[0] = pms->count[1] = 0;
pms->abcd[0] = 0x67452301;
pms->abcd[1] = 0xefcdab89;
pms->abcd[2] = 0x98badcfe;
pms->abcd[3] = 0x10325476;
}
void
_cupsMD5Append(_cups_md5_state_t *pms, const unsigned char *data, int nbytes)
{
const unsigned char *p = data;
int left = nbytes;
int offset = (pms->count[0] >> 3) & 63;
unsigned int nbits = (unsigned int)(nbytes << 3);
if (nbytes <= 0)
return;
pms->count[1] += (unsigned)nbytes >> 29;
pms->count[0] += nbits;
if (pms->count[0] < nbits)
pms->count[1]++;
if (offset) {
int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
memcpy(pms->buf + offset, p, (size_t)copy);
if (offset + copy < 64)
return;
p += copy;
left -= copy;
_cups_md5_process(pms, pms->buf);
}
for (; left >= 64; p += 64, left -= 64)
_cups_md5_process(pms, p);
if (left)
memcpy(pms->buf, p, (size_t)left);
}
void
_cupsMD5Finish(_cups_md5_state_t *pms, unsigned char digest[16])
{
static const unsigned char pad[64] = {
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
unsigned char data[8];
int i;
for (i = 0; i < 8; ++i)
data[i] = (unsigned char)(pms->count[i >> 2] >> ((i & 3) << 3));
_cupsMD5Append(pms, pad, (int)((55 - (pms->count[0] >> 3)) & 63) + 1);
_cupsMD5Append(pms, data, 8);
for (i = 0; i < 16; ++i)
digest[i] = (unsigned char)(pms->abcd[i >> 2] >> ((i & 3) << 3));
}
#endif