From: Andrey Rys <rys@lynxlynx.ru>
Date: Mon, 29 Apr 2019 15:48:37 +0000 (+0700)
Subject: -c: pattern fill support.
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=7843812e68ebd194667b244cdd6f6cbd45beb3a5;hp=7843812e68ebd194667b244cdd6f6cbd45beb3a5;p=tfcrypt.git

-c: pattern fill support.

The syntax is:

        -c hexc:nr[,hexc:nr,...]

As example, filling with 16 byte counter with following:

        ffffffff3333337a7a7a7a88882a0b0c

is possible with following pattern:

        -c ff:4,33:3,7a:4,88:2,2a:1,0b:1,0c:1

To fill with zeroes (or any other static byte) is simple:

        -c 0:16

Note that any bytes that tend to overflow counter space are dropped, and any
unused bytes not filled by pattern are set to zeroes.
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