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zlib 1.2.3.4

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This commit is contained in:
Mark Adler
2011-09-09 23:26:40 -07:00
parent 639be99788
commit f6194ef39a
45 changed files with 3663 additions and 873 deletions
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38
adler32.c
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@@ -1,21 +1,15 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
* Copyright (C) 1995-2006 Mark Adler
* Copyright (C) 1995-2007 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#define ZLIB_INTERNAL
#include "zlib.h"
#include "zutil.h"
#define local static
#ifdef _LARGEFILE64_SOURCE
local uLong adler32_combine_(uLong adler1, uLong adler2, off64_t len2);
#else
local uLong adler32_combine_(uLong adler1, uLong adler2, z_off_t len2);
#endif
local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
#define BASE 65521UL /* largest prime smaller than 65536 */
#define NMAX 5552
@@ -137,11 +131,7 @@ uLong ZEXPORT adler32(adler, buf, len)
local uLong adler32_combine_(adler1, adler2, len2)
uLong adler1;
uLong adler2;
#ifdef _LARGEFILE64_SOURCE
off64_t len2;
#else
z_off_t len2;
#endif
z_off64_t len2;
{
unsigned long sum1;
unsigned long sum2;
@@ -154,10 +144,10 @@ local uLong adler32_combine_(adler1, adler2, len2)
MOD(sum2);
sum1 += (adler2 & 0xffff) + BASE - 1;
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 > BASE) sum2 -= BASE;
if (sum1 >= BASE) sum1 -= BASE;
if (sum1 >= BASE) sum1 -= BASE;
if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1);
if (sum2 >= BASE) sum2 -= BASE;
return sum1 | (sum2 << 16);
}
@@ -170,20 +160,10 @@ uLong ZEXPORT adler32_combine(adler1, adler2, len2)
return adler32_combine_(adler1, adler2, len2);
}
#ifdef _LARGEFILE64_SOURCE
uLong ZEXPORT adler32_combine64(adler1, adler2, len2)
uLong adler1;
uLong adler2;
off64_t len2;
z_off64_t len2;
{
return adler32_combine_(adler1, adler2, len2);
}
#else
uLong ZEXPORT adler32_combine64(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off_t len2;
{
return adler32_combine_(adler1, adler2, len2);
}
#endif