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Update zlib to 1.2.11

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This commit is contained in:
Tao Schreiner
2017-05-18 19:49:06 +02:00
parent ec7c4ff92e
commit b3c26b6ec4
21 changed files with 1655 additions and 993 deletions
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21
Externals/zlib/adler32.c vendored
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@ -1,5 +1,5 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
* Copyright (C) 1995-2011 Mark Adler
* Copyright (C) 1995-2011, 2016 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -7,11 +7,9 @@
#include "zutil.h"
#define local static
local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
#define BASE 65521 /* largest prime smaller than 65536 */
#define BASE 65521U /* largest prime smaller than 65536 */
#define NMAX 5552
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
@ -62,10 +60,10 @@ local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
#endif
/* ========================================================================= */
uLong ZEXPORT adler32(adler, buf, len)
uLong ZEXPORT adler32_z(adler, buf, len)
uLong adler;
const Bytef *buf;
uInt len;
z_size_t len;
{
unsigned long sum2;
unsigned n;
@ -132,6 +130,15 @@ uLong ZEXPORT adler32(adler, buf, len)
return adler | (sum2 << 16);
}
/* ========================================================================= */
uLong ZEXPORT adler32(adler, buf, len)
uLong adler;
const Bytef *buf;
uInt len;
{
return adler32_z(adler, buf, len);
}
/* ========================================================================= */
local uLong adler32_combine_(adler1, adler2, len2)
uLong adler1;
@ -156,7 +163,7 @@ local uLong adler32_combine_(adler1, adler2, len2)
sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
if (sum1 >= BASE) sum1 -= BASE;
if (sum1 >= BASE) sum1 -= BASE;
if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1);
if (sum2 >= ((unsigned long)BASE << 1)) sum2 -= ((unsigned long)BASE << 1);
if (sum2 >= BASE) sum2 -= BASE;
return sum1 | (sum2 << 16);
}