Function ksprintn

lib/ff_subr_prf.c:120–134

* Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse * order; return an optional length and a pointer to the last character * written in the buffer (i.e., the first character of the string). * The buffer pointed to by `nbuf' must have length >= MAXNBUF. */

 * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
 */
static char *
ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
{
    char *p, c;

    p = nbuf;
    *p = '\0';
    do {
        c = hex2ascii(num % base);
        *++p = upper ? toupper(c) : c;
    } while (num /= base);
    if (lenp)
        *lenp = p - nbuf;
    return (p);
}

static void
putbuf(int c, struct putchar_arg *ap)