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Date: Sat, 8 Mar 2014 10:02:48 -0500
From: <jfoug@....net>
To: john-dev@...ts.openwall.com
Cc: magnum <john.magnum@...hmail.com>
Subject: Fwd: was Re: [john-users] Fwd: jtr cygwin64
I have made this change in tty.c:
#if defined (__CYGWIN32__)
FD_ZERO(&set); FD_SET(tty_fd, &set);
tv.tv_sec = 0; tv.tv_usec = 0;
//if (select(tty_fd + 1, &set, NULL, NULL, &tv) <= 0)
if (!(select(tty_fd + 1, &set, NULL, NULL, &tv) && FD_ISSET(tty_fd, &set)))
return -1;
#endif
and the problem goes away for both cygwin64 and cygwin32. HOWEVER, I am not sure exactly why. They select (without the !) was something I found online about doing a cvygwin replacement of kbhit() function (visual C specific). I think our checking of <= 0 is where the problem is, but I am not sure exactly why, nor why it was happy in cygwin32, but fails in cygwin64. Possibly we have not fully setup raw mode, or something else. I do not have time to dig in too much today, but with the above 'simple' change, things are working, but I am just not sure it is right. Heck, you can even comment out the select and it works fine also, so again, without digging in deeper, I am not sure what that select is intended to do.
Full original message with bug report left intact.
---- magnum <john.magnum@...hmail.com> wrote:
> What could be the reason for the below? Running directly under cmd.exe
> instead of bash.exe perhaps? Though I'd thought it should work anyway.
>
> magnum
>
>
> -------- Original Message --------
> Subject: jtr cygwin64
> Date: Sat, 08 Mar 2014 05:23:26 -0500
> From: (offlist)
> To: magnum
>
> Hi,
> thanks for adding cygwin64 target to jtr bleeding-jumbo. It compiles
> without any error.
> I've found a bug during runtime. Jtr doesn't react at pressing any key.
>
> What i mean:
> press any key for status: doesn't work
> press q to quit doesn't work
> press Crtl + q to quit is the only key combination that works
> Hope you can fix this. Sorry for my bad english.
> best regards, fatuma
>
>
>
>
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