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network.h

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/*!     \file include/net/network.h
 *      \brief Header for the network driver.
 *      \author Andrea Righi <drizzt@inwind.it>
 *      \date Last update: 2003-11-09
 *      \note Copyright (&copy;) 2003 Andrea Righi
 */

#ifndef NETWORK_H
#define NETWORK_H

#if __BYTE_ORDER__==__LITTLE_ENDIAN__
        //! Network to host conversion for a word.
        #define ntohs(n) ( (((n) & 0xFF00) >> 8) | (((n) & 0x00FF) << 8) )
        //! Host to network conversion for a word.
        #define htons(n) ( (((n) & 0xFF00) >> 8) | (((n) & 0x00FF) << 8) )
        //! Network to host conversion for a double word.
        #define ntohl(n) ( (((n) & 0xFF000000) >> 24) | (((n) & 0x00FF0000) >> 8) \
                | (((n) & 0x0000FF00) << 8) | (((n) & 0x000000FF) << 24) )
        //! Host to network conversion for a double word.
        #define htonl(n) ( (((n) & 0xFF000000) >> 24) | (((n) & 0x00FF0000) >> 8) \
                | (((n) & 0x0000FF00) << 8) | (((n) & 0x000000FF) << 24) )
#else
        //! Network to host conversion for a word.
        #define ntohs(n) (n)
        //! Host to network conversion for a word.
        #define htons(n) (n)
        //! Network to host conversion for a double word.
        #define ntohl(n) (n)
        //! Host to network conversion for a double word.
        #define htonl(n) (n)
#endif

#endif

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