/* chiyo1.c - Don Yang (uguu.org)

   11/05/02
                                                                           */

#include<stdio.h>

int main(int argc, char **argv)
{
   unsigned int table[256], crc;
   FILE *infile;
   int i, j, c;

   if( argc < 2 )
   {
      printf("%s <file> [...]\n", *argv);
   }
   else
   {
      for(i = 0; (crc = i) < 256; table[i++] = crc)
         for(j = 8; j > 0; j--)
            crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);

      for(i = 1; i < argc; i++)
         if( (infile = fopen(argv[i], "rb")) )
         {
            for(crc = 0xffffffff;
                (c = fgetc(infile)) > -1;
                crc = ((crc >> 8) & 0xffffff) ^ table[(crc ^ c) & 255]);
            fclose(infile);
            printf("%s: %08x\n", argv[i], crc ^ 0xffffffff);
         }
   }
   return 0;
}