home *** CD-ROM | disk | FTP | other *** search
- /*
- * Copyright (c) 1987, 1991, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)endian.h 8.1 (Berkeley) 6/10/93
- */
-
- #ifndef _ENDIAN_H_
- #define _ENDIAN_H_
-
- /*
- * Define the order of 32-bit words in 64-bit words.
- */
- #define _QUAD_HIGHWORD 0
- #define _QUAD_LOWWORD 1
-
- #ifndef _POSIX_SOURCE
- /*
- * Definitions for byte order, according to byte significance from low
- * address to high.
- */
- #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
- #define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
- #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
-
- #define BYTE_ORDER BIG_ENDIAN
-
- #include <sys/cdefs.h>
-
- __BEGIN_DECLS
- unsigned long htonl __P((unsigned long));
- unsigned short htons __P((unsigned short));
- unsigned long ntohl __P((unsigned long));
- unsigned short ntohs __P((unsigned short));
- __END_DECLS
-
- /*
- * Macros for network/external number representation conversion.
- */
- #if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
- #define ntohl(x) (x)
- #define ntohs(x) (x)
- #define htonl(x) (x)
- #define htons(x) (x)
-
- #define NTOHL(x) (x)
- #define NTOHS(x) (x)
- #define HTONL(x) (x)
- #define HTONS(x) (x)
-
- #else
-
- #define NTOHL(x) (x) = ntohl((u_long)x)
- #define NTOHS(x) (x) = ntohs((u_short)x)
- #define HTONL(x) (x) = htonl((u_long)x)
- #define HTONS(x) (x) = htons((u_short)x)
- #endif
- #endif /* !_POSIX_SOURCE */
- #endif /* !_ENDIAN_H_ */
-