From 9ce642f9746dfc29d119d0680b769677e3ea6da6 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Wed, 27 Oct 2010 15:26:45 +0200 Subject: libbb: introduce and use common crc32 routine function old new delta crc32_block_endian1 - 37 +37 crc32_block_endian0 - 34 +34 global_crc32_table - 8 +8 file_read 82 87 +5 gzip_main 211 214 +3 xz_crc32 40 35 -5 crc32_table 8 - -8 calculate_gunzip_crc 54 34 -20 lzo_crc32 54 25 -29 cksum_main 298 211 -87 ------------------------------------------------------------------------------ (add/remove: 3/1 grow/shrink: 2/4 up/down: 87/-149) Total: -62 bytes Signed-off-by: Denys Vlasenko --- include/libbb.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/libbb.h b/include/libbb.h index d14728e..587a5f9 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1543,11 +1543,10 @@ void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC; void sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC; void sha512_end(sha512_ctx_t *ctx, void *resbuf) FAST_FUNC; -/* TODO: add global crc32_table pointer and create - * LE and BE functions to calculate crc32 over given bytes. - * Currently we have about five reimplementations... - */ +extern uint32_t *global_crc32_table; uint32_t *crc32_filltable(uint32_t *tbl256, int endian) FAST_FUNC; +uint32_t crc32_block_endian1(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC; +uint32_t crc32_block_endian0(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC; typedef struct masks_labels_t { const char *labels; -- cgit v1.1