#include <netutil/htons.h>
#include "stdint.h"

/**
 * Convert an uint16_t from host- to network byte order.
 *
 * @param n uint16_t in host byte order
 * @return n in network byte order
 */
uint16_t
lwip_htons(uint16_t n)
{
  return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);
}

/**
 * Convert an uint16_t from network- to host byte order.
 *
 * @param n uint16_t in network byte order
 * @return n in host byte order
 */
uint16_t
lwip_ntohs(uint16_t n)
{
  return lwip_htons(n);
}

/**
 * Convert an uint32_t from host- to network byte order.
 *
 * @param n uint32_t in host byte order
 * @return n in network byte order
 */
uint32_t
lwip_htonl(uint32_t n)
{
  return ((n & 0xff) << 24) |
    ((n & 0xff00) << 8) |
    ((n & 0xff0000UL) >> 8) |
    ((n & 0xff000000UL) >> 24);
}

/**
 * Convert an uint32_t from network- to host byte order.
 *
 * @param n uint32_t in network byte order
 * @return n in host byte order
 */
uint32_t
lwip_ntohl(uint32_t n)
{
  return lwip_htonl(n);
}