Author: Robert Hyatt
Date: 04:50:36 03/26/99
Go up one level in this thread
On March 25, 1999 at 23:49:20, Eugene Nalimov wrote: >On March 25, 1999 at 23:01:48, Ed Schröder wrote: > >>On March 25, 1999 at 22:37:58, Robert Hyatt wrote: >> >>>On March 25, 1999 at 10:02:37, Eugene Nalimov wrote: >>> >>>>On March 25, 1999 at 08:05:45, Robert Hyatt wrote: >>>> >>>>>On March 25, 1999 at 07:08:57, Robert Ericsson wrote: >>>>> >>>>>>I have just read at Gambit-SOFT News that Crafty will not be for free >>>>>>download anymore. >>>>>> >>>>>>I can understand Dr. Hyatt's decision and all I can say is a BIG thank you >>>>>>to Bob for all previous free downloads of Crafty!! >>>>>> >>>>>>I enjoy Crafty very much. I hope we will hear from you here at CCC though. >>>>>>Good luck with your future programming! >>>>>> >>>>>>Yours sincerely, >>>>>>Robert Ericsson >>>>> >>>>> >>>>>Crafty will continue to be available. Just not via anonymous ftp, so that I >>>>>can maintain some sort of control over it. I don't know how it will be done >>>>>just yet, but details will be posted here soon. >>>> >>>>Maybe you can distribute executables by anonymous FTP. My guess >>>>is that at least 80% of Crafty users will be happy with it. >>>> >>>>Eugene >>> >>>That doesn't solve the 'drafty' problem.. because it is not terribly hard to >>>use a hex editor to find the various strings in crafty and change them to some >>>sort of profanity. >> >>You can add a checksum to the Crafty executable. I have done this myself >>in every Rebel release. If one byte is changed then it is exit program. >>It's also a good protection against a virus. >> >>Ed Schroder > > >I can write some Win32-specific code - I know structure of the >executables very well (before moving to MS I wrote Win32 linker). >Of course, that can be broken, too, but at least some assembly >knowledge is required. > >Bob, please write to me if you are interested. > >Eugene I'm interested. What I am thinking of is using argv[0] to get the name of the program, then simply opening that file and checksumming it. I could do it on what is in memory, but that would be a bit harder and make it so system dependent that it would probably be a headache. seem ok like that? Bob > >>>Tablebases and the PGN game collections are 'up' still. And crafty will be >>>again once I find a way to exert some control over it. IE the license agreement >>>will likely change, although the cost will _always_ be what it is today. :)
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