preforming this code to read file and print each character \ (byte) in separate line

works well with ASCII

void
preprocess_file (FILE *fp)

{
  int cc;

    for (;;)
      { 
    cc = getc (fp);
    if (cc == EOF)
        break;
    printf ("%c\n", cc);
      }
}

int
main(int argc, char *argv [])
{
    preprocess_file (stdin);

    exit (0);
}

but when i use it with UTF-8 encoded text it shows unredable character such as

ï
»
?
?
§
?
„
?
…
?
¤
?
´
?

and advice ?

Thanks