Function print_string

payloads/libpayload/libc/printf.c:182–215

* Print string. * * @param s String to be printed. * @param width Width modifier. * @param precision Precision modifier. * @param flags Flags that modify the way the string is printed. * @param ps Output methods spec for different printf clones. * @return Number of characters printed, negative value on failure. */ Structure for specifying output methods for different printf clones. */

 */
/** Structure for specifying output methods for different printf clones. */
static int print_string(const char *s, int width, int precision,
			uint64_t flags, struct printf_spec *ps)
{
	int counter = 0, retval;
	size_t size;

	if (s == NULL)
		s = "(null)";
	if (precision >= 0)
		size = strnlen(s, precision);
	else
		size = strlen(s);
	width -= size;

	if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) {
		if ((retval = print_spaces(width, ps)) < 0)
			return retval;
		else
			counter += retval;
	}

	if ((retval = printf_putnchars(s, size, ps)) < 0)
		return retval;
	counter += retval;

	if (flags & __PRINTF_FLAG_LEFTALIGNED) {
		if ((retval = print_spaces(width, ps)) < 0)
			return retval;
		else
			counter += retval;
	}

	return counter;
}

/**
 * Print a number in a given base.