RFC 4960, "Stream Control Transmission Protocol", September 2007

Note: This RFC has been obsoleted by RFC 9260

Note: This RFC has been updated by RFC 6096, RFC 6335, RFC 7053, RFC 8899

Errata ID: 3423
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Pontus Andersson
Date Reported: 2012-12-01
Verifier Name: Martin Stiemerling
Date Verified: 2013-03-06

Section B says:

   unsigned long
   generate_crc32c(unsigned char *buffer, unsigned int length)
   {
     unsigned int i;
     unsigned long crc32 = ~0L;

It should say:

   unsigned long
   generate_crc32c(unsigned char *buffer, unsigned int length)
   {
     unsigned int i;
     unsigned long crc32 = 0xffffffffL;

Notes:

The remainder register (crc32) should be initialized to 0xffffffffL rather than ~0L, for correct operation on platforms where unisigned long is longer than 32 bits. I.e., 64-bit platforms.

Report New Errata