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 --- coreutils/cksum.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'coreutils/cksum.c') diff --git a/coreutils/cksum.c b/coreutils/cksum.c index 7bf383e2d..7a37e6add 100644 --- a/coreutils/cksum.c +++ b/coreutils/cksum.c @@ -18,7 +18,6 @@ int cksum_main(int argc UNUSED_PARAM, char **argv) off_t length, filesize; int bytes_read; int exit_code = EXIT_SUCCESS; - uint8_t *cp; #if ENABLE_DESKTOP getopt32(argv, ""); /* coreutils 6.9 compat */ @@ -39,11 +38,7 @@ int cksum_main(int argc UNUSED_PARAM, char **argv) #define read_buf bb_common_bufsiz1 while ((bytes_read = safe_read(fd, read_buf, sizeof(read_buf))) > 0) { - cp = (uint8_t *) read_buf; - length += bytes_read; - do { - crc = (crc << 8) ^ crc32_table[(crc >> 24) ^ *cp++]; - } while (--bytes_read); + crc = crc32_block_endian1(crc, read_buf, bytes_read, crc32_table); } close(fd); -- cgit v1.2.3