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

   Copy file or stdin to stdout.

   09/03/04
                                                                           */

#include<stdio.h>


int main(int argc, char **argv)
{
   FILE *infile;
   int i;

   if( argc > 1 )
   {
      if( (infile = fopen(argv[1], "rb")) == NULL )
         return printf("Can not open %s\n", argv[1]);
   }
   else
   {
      infile = stdin;
   }

   for(; (i = fgetc(infile)) != EOF; fputc(i, stdout));

   return fclose(infile);
}