/*- * Copyright (c) 1997 Niklas Hallqvist. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #ifndef _SYS_ENDIAN_H_ #define _SYS_ENDIAN_H_ #include <sys/cdefs.h> #include <stdint.h> #define _LITTLE_ENDIAN 1234 #define _BIG_ENDIAN 4321 #define _PDP_ENDIAN 3412 #define _BYTE_ORDER _LITTLE_ENDIAN #define __LITTLE_ENDIAN_BITFIELD #ifndef __LITTLE_ENDIAN #define __LITTLE_ENDIAN _LITTLE_ENDIAN #endif #ifndef __BIG_ENDIAN #define __BIG_ENDIAN _BIG_ENDIAN #endif #define __BYTE_ORDER _BYTE_ORDER #define __swap16 __builtin_bswap16 #define __swap32 __builtin_bswap32 #define __swap64(x) __BIONIC_CAST(static_cast,uint64_t,__builtin_bswap64(x)) /* glibc compatibility. */ __BEGIN_DECLS uint32_t htonl(uint32_t __x) __attribute_const__ __INTRODUCED_IN(21); uint16_t htons(uint16_t __x) __attribute_const__ __INTRODUCED_IN(21); uint32_t ntohl(uint32_t __x) __attribute_const__ __INTRODUCED_IN(21); uint16_t ntohs(uint16_t __x) __attribute_const__ __INTRODUCED_IN(21); __END_DECLS #define htonl(x) __swap32(x) #define htons(x) __swap16(x) #define ntohl(x) __swap32(x) #define ntohs(x) __swap16(x) /* Bionic additions */ #define htonq(x) __swap64(x) #define ntohq(x) __swap64(x) #if defined(__USE_BSD) || defined(__BIONIC__) /* Historically bionic exposed these. */ #define LITTLE_ENDIAN _LITTLE_ENDIAN #define BIG_ENDIAN _BIG_ENDIAN #define PDP_ENDIAN _PDP_ENDIAN #define BYTE_ORDER _BYTE_ORDER #define NTOHL(x) (x) = ntohl(__BIONIC_CAST(static_cast,u_int32_t,(x))) #define NTOHS(x) (x) = ntohs(__BIONIC_CAST(static_cast,u_int16_t,(x))) #define HTONL(x) (x) = htonl(__BIONIC_CAST(static_cast,u_int32_t,(x))) #define HTONS(x) (x) = htons(__BIONIC_CAST(static_cast,u_int16_t,(x))) #define htobe16(x) __swap16(x) #define htobe32(x) __swap32(x) #define htobe64(x) __swap64(x) #define betoh16(x) __swap16(x) #define betoh32(x) __swap32(x) #define betoh64(x) __swap64(x) #define htole16(x) (x) #define htole32(x) (x) #define htole64(x) (x) #define letoh16(x) (x) #define letoh32(x) (x) #define letoh64(x) (x) /* * glibc-compatible beXXtoh/leXXtoh synonyms for htobeXX/htoleXX. * The BSDs export both sets of names, bionic historically only * exported the ones above (or on the rhs here), and glibc only * exports these names (on the lhs). */ #define be16toh(x) htobe16(x) #define be32toh(x) htobe32(x) #define be64toh(x) htobe64(x) #define le16toh(x) htole16(x) #define le32toh(x) htole32(x) #define le64toh(x) htole64(x) #endif #endif