diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 11:19:16 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 12:07:37 +0000 |
commit | b485aab7e71c1625cfc27e0f92c9509f42378458 (patch) | |
tree | ae9abe108601079d1679194de237c9a435ae5b55 /web/server/h2o/libh2o/deps/mruby/src/crc.c | |
parent | Adding upstream version 1.44.3. (diff) | |
download | netdata-b485aab7e71c1625cfc27e0f92c9509f42378458.tar.xz netdata-b485aab7e71c1625cfc27e0f92c9509f42378458.zip |
Adding upstream version 1.45.3+dfsg.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'web/server/h2o/libh2o/deps/mruby/src/crc.c')
-rw-r--r-- | web/server/h2o/libh2o/deps/mruby/src/crc.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/web/server/h2o/libh2o/deps/mruby/src/crc.c b/web/server/h2o/libh2o/deps/mruby/src/crc.c deleted file mode 100644 index 290b2ca0e..000000000 --- a/web/server/h2o/libh2o/deps/mruby/src/crc.c +++ /dev/null @@ -1,39 +0,0 @@ -/* -** crc.c - calculate CRC -** -** See Copyright Notice in mruby.h -*/ - -#include <limits.h> -#include <stdint.h> -#include <stddef.h> - -/* Calculate CRC (CRC-16-CCITT) -** -** 0000_0000_0000_0000_0000_0000_0000_0000 -** ^|------- CRC -------|- work --| -** carry -*/ -#define CRC_16_CCITT 0x11021ul /* x^16+x^12+x^5+1 */ -#define CRC_XOR_PATTERN (CRC_16_CCITT << 8) -#define CRC_CARRY_BIT (0x01000000) - -uint16_t -calc_crc_16_ccitt(const uint8_t *src, size_t nbytes, uint16_t crc) -{ - size_t ibyte; - uint32_t ibit; - uint32_t crcwk = crc << 8; - - for (ibyte = 0; ibyte < nbytes; ibyte++) { - crcwk |= *src++; - for (ibit = 0; ibit < CHAR_BIT; ibit++) { - crcwk <<= 1; - if (crcwk & CRC_CARRY_BIT) { - crcwk ^= CRC_XOR_PATTERN; - } - } - } - return (uint16_t)(crcwk >> 8); -} - |