/*   This program counts the number of bytes in a C source file. The
     program prompts the user for a file name and then concatenates
     the ".c" extension to this name. It uses the function
     getc to read the characters.
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

main()
{
     FILE  *fptr;
     char  extension[] = ".c";
     char  file_name[ FILENAME_MAX ];
     int  char_count;

     printf( "\n\n\tFile name (NO extension):\t" );
     scanf( "%s", file_name );
     strcat( file_name, extension );
     fptr = fopen( file_name, "rb" );
     for ( char_count = 0; getc( fptr ) != EOF; ++char_count )
          ;
     printf( "\n\tByte size:\t%d", char_count );
     fclose( fptr );

     return EXIT_SUCCESS;
}