diff options
Diffstat (limited to 'src/erasurecode_helpers.c')
| -rw-r--r-- | src/erasurecode_helpers.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/erasurecode_helpers.c b/src/erasurecode_helpers.c index 4be2634..84b114c 100644 --- a/src/erasurecode_helpers.c +++ b/src/erasurecode_helpers.c @@ -463,6 +463,7 @@ inline int set_checksum(ec_checksum_type_t ct, char *buf, int blocksize) { fragment_header_t* header = (fragment_header_t*) buf; char *data = get_data_ptr_from_fragment(buf); + char *flag; assert(NULL != header); if (header->magic != LIBERASURECODE_FRAG_HEADER_MAGIC) { @@ -475,7 +476,12 @@ inline int set_checksum(ec_checksum_type_t ct, char *buf, int blocksize) switch(header->meta.chksum_type) { case CHKSUM_CRC32: - header->meta.chksum[0] = crc32(0, (unsigned char *) data, blocksize); + flag = getenv("LIBERASURECODE_WRITE_LEGACY_CRC"); + if (flag && !(flag[0] == '\0' || (flag[0] == '0' && flag[1] == '\0'))) { + header->meta.chksum[0] = liberasurecode_crc32_alt(0, data, blocksize); + } else { + header->meta.chksum[0] = crc32(0, (unsigned char *) data, blocksize); + } break; case CHKSUM_MD5: break; |