diff options
| -rw-r--r-- | libexec/tftpd/tftpd.8 | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/libexec/tftpd/tftpd.8 b/libexec/tftpd/tftpd.8 index 96bd24c..7c3da08 100644 --- a/libexec/tftpd/tftpd.8 +++ b/libexec/tftpd/tftpd.8 @@ -300,8 +300,15 @@ and .Xr tftp 1 code to support RFC2348. .Sh NOTES -Files larger than 33488896 octets (65535 blocks) cannot be transferred -without client and server supporting the TFTP blocksize option (RFC2348), +Files larger than 33,553,919 octets (65535 blocks, last one <512 +octets) cannot be correctly transferred without client and server +supporting blocksize negotiation (RFCs 2347 and 2348), or the non-standard TFTP rollover option. +As a kludge, +.Nm +accepts a sequence of block number which wrap to zero after 65535, +even if the rollover option is not specified. .Pp -Many tftp clients will not transfer files over 16744448 octets (32767 blocks). +Many tftp clients will not transfer files over 16,776,703 octets +(32767 blocks), as they incorrectly count the block number using +a signed rather than unsigned 16-bit integer. |
