/* 5-2
 * Tanel Toova
 * Koostada programm, mis kasutades funktsiooni ftell() väljastaks käsurealt 
 * etteantud faili suuruse. Faili nime puudumine loetakse veaks
 */
#include <stdio.h>

FILE *fFile;

int main(int argc, char **argv)
{
    if(argc!=2){ //if there is improper number of cmd-line parameters
        fprintf(stderr,"Usage: %s <filename>\n", argv[0]);
        return(1);
    }
    fFile = fopen(argv[1],"r");
    if(!fFile){ //if it's not possible to open file
        fprintf(stderr,"Error opening %s",argv[1]);
        return(2);
    }
    fseek(fFile, 0, SEEK_END); //go to end of file
    //give the size of file in bytes
    fprintf(stdout,"The size of %s is %d bytes\n",argv[1],ftell(fFile));
    return(0);
}