Date: Fri, 14 Aug 2020 12:16:10 -0800 From: Royce Williams <royce@...ho.org> To: john-users@...ts.openwall.com Subject: automating --fork with ZTEX and variable device counts Any tips for automating the use of --fork when the number of ZTEX boards can vary with device stability? (I've read OPTIONS and FAQ and don't see anything I can leverage.) Since a board or two sometimes drifts in and out, hard-coding the fork count (so that it matches the number of devices specified on the commandline, etc) works for a while, but then if a board reappears or drops, the device count isn't cleanly divisible by the number of forks anymore, so john exits. This is manageable when doing individual interactive runs of john, but does not lend itself well to loops or automation. Since the fork count is validated at runtime after starting john, even if I had a way to reliably check device count externally, the device count can (and does) change between when the check is performed and when john is started. So it seems that a pre-runtime check would not be useful to handle this case. -- Royce
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