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   TUXPOWER      Advocacy for the Linux operating system      1,237 messages   

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   Message 461 of 1,237   
   mark lewis to Alan Ianson   
   CRC32   
   02 Oct 16 09:36:18   
   
   01 Oct 16 21:01, you wrote to Maurice Kinal:   
      
    MK>> Having said that, I am curious if the c code produces the 'correct'   
    MK>> output as far as fidonet tic people are concerned.  Let us call it   
    MK>> needed closure.  :-)   
      
    AI> It does output a crc32 value. Always E4D9C11A. ./crc32, crc32   
    AI> , and crc32 --help all return that value.   
      
   did you notice that it always fills the buffer with random bytes in main()? ;)   
      
   it is funny, though, that the same CRC value is generated on separate machine   
   and multiple runs... something must be wrong with the selection of the random   
   bytes...   
      
    AI> I don't know if I compiled it right.. I simply did gcc crc32.c.   
      
   there's no much to compiling it... maybe specifying an output name... mine   
   defaulted to a.out...   
      
   one thing i do note is that it feeds the entire buffer to the update_crc   
   routine in one shot instead of feeding it one byte at the time... that will   
   make a difference in the results... especially if there's any pre- and/or   
   post- processing and where it is being performed...   
      
   )\/(ark   
      
   Always Mount a Scratch Monkey   
   Do you manage your own servers? If you are not running an IDS/IPS yer doin' it   
   wrong...   
   ... The local diner doesn't give out doggie bags. The SPCA won't let 'em.   
   ---   
    * Origin:  (1:3634/12.73)   

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