X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=libraries%2Fzlib-1.1.3%2Fadler32.c;fp=libraries%2Fzlib-1.1.3%2Fadler32.c;h=0000000000000000000000000000000000000000;hb=05480ba2fd2e6c39ad87234bf7690aac97ea8f00;hp=16cf9a703f7cdedc6715db64715254780ad6414d;hpb=2e031f6159ca944a9bda3bb8f3bfcdd178d564e0;p=rrdtool.git diff --git a/libraries/zlib-1.1.3/adler32.c b/libraries/zlib-1.1.3/adler32.c deleted file mode 100644 index 16cf9a7..0000000 --- a/libraries/zlib-1.1.3/adler32.c +++ /dev/null @@ -1,48 +0,0 @@ -/* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-1998 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#include "zlib.h" - -#define BASE 65521L /* 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 */ - -#define DO1(buf,i) {s1 += buf[i]; s2 += s1;} -#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); -#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); -#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); -#define DO16(buf) DO8(buf,0); DO8(buf,8); - -/* ========================================================================= */ -uLong ZEXPORT adler32(adler, buf, len) - uLong adler; - const Bytef *buf; - uInt len; -{ - unsigned long s1 = adler & 0xffff; - unsigned long s2 = (adler >> 16) & 0xffff; - int k; - - if (buf == Z_NULL) return 1L; - - while (len > 0) { - k = len < NMAX ? len : NMAX; - len -= k; - while (k >= 16) { - DO16(buf); - buf += 16; - k -= 16; - } - if (k != 0) do { - s1 += *buf++; - s2 += s1; - } while (--k); - s1 %= BASE; - s2 %= BASE; - } - return (s2 << 16) | s1; -}