diff options
Diffstat (limited to 'checksum.c')
| -rw-r--r-- | checksum.c | 17 |
1 files changed, 13 insertions, 4 deletions
@@ -23,6 +23,7 @@ extern int checksum_seed; extern int protocol_version; +extern int proper_seed_order; /* a simple 32 bit checksum that can be upadted from either end @@ -54,10 +55,18 @@ void get_checksum2(char *buf, int32 len, char *sum) if (protocol_version >= 30) { uchar seedbuf[4]; md5_begin(&m); - md5_update(&m, (uchar *)buf, len); - if (checksum_seed) { - SIVALu(seedbuf, 0, checksum_seed); - md5_update(&m, seedbuf, 4); + if (proper_seed_order) { + if (checksum_seed) { + SIVALu(seedbuf, 0, checksum_seed); + md5_update(&m, seedbuf, 4); + } + md5_update(&m, (uchar *)buf, len); + } else { + md5_update(&m, (uchar *)buf, len); + if (checksum_seed) { + SIVALu(seedbuf, 0, checksum_seed); + md5_update(&m, seedbuf, 4); + } } md5_result(&m, (uchar *)sum); } else { |