From 96b212e784a627eae566a886efdfd3e8e6788823 Mon Sep 17 00:00:00 2001 From: midipix Date: Sat, 7 Jun 2025 23:56:33 +0000 Subject: low-level api: incorporate the framework's crc32 and crc64 interfaces. --- src/crc/pe_crc64.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/crc/pe_crc64.c (limited to 'src/crc/pe_crc64.c') diff --git a/src/crc/pe_crc64.c b/src/crc/pe_crc64.c new file mode 100644 index 0000000..8296432 --- /dev/null +++ b/src/crc/pe_crc64.c @@ -0,0 +1,32 @@ +/***************************************************************/ +/* perk: PE Resource Kit */ +/* Copyright (C) 2015--2025 SysDeer Technologies, LLC */ +/* Released under GPLv2 and GPLv3; see COPYING.PERK. */ +/***************************************************************/ + +#include +#include + +#include +#include + +static const uint64_t crc64_table[256] = PERK_CRC64_TABLE; + +uint64_t pe_hash_mbstr_crc64(const unsigned char * str, size_t * symlen) +{ + const unsigned char * ch; + uint64_t crc64; + + crc64 = 0 ^ 0xFFFFFFFFFFFFFFFF; + ch = str; + + while (*ch) { + crc64 = (crc64 >> 8) ^ crc64_table[(crc64 ^ *ch) & 0xFF]; + ch++; + } + + if (symlen) + *symlen = ch - str; + + return (crc64 ^ 0xFFFFFFFFFFFFFFFF); +} -- cgit v1.2.3