| /*- |
| * 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 |
