| /* |
| * CDDL HEADER START |
| * |
| * The contents of this file are subject to the terms of the |
| * Common Development and Distribution License (the "License"). |
| * You may not use this file except in compliance with the License. |
| * |
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| * or http://www.opensolaris.org/os/licensing. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * |
| * When distributing Covered Code, include this CDDL HEADER in each |
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| * If applicable, add the following below this CDDL HEADER, with the |
| * fields enclosed by brackets "[]" replaced with your own identifying |
| * information: Portions Copyright [yyyy] [name of copyright owner] |
| * |
| * CDDL HEADER END |
| */ |
| |
| /* |
| * Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| * Use is subject to license terms. |
| */ |
| |
| /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ |
| /* All Rights Reserved */ |
| |
| /* |
| * University Copyright- Copyright (c) 1982, 1986, 1988 |
| * The Regents of the University of California |
| * All Rights Reserved |
| * |
| * University Acknowledgment- Portions of this document are derived from |
| * software developed by the University of California, Berkeley, and its |
| * contributors. |
| */ |
| |
| #ifndef _SYS_BYTEORDER_H |
| #define _SYS_BYTEORDER_H |
| |
| |
| |
| #include <sys/isa_defs.h> |
| #include <sys/int_types.h> |
| |
| #if defined(__GNUC__) && defined(_ASM_INLINES) && \ |
| (defined(__i386) || defined(__amd64)) |
| #include <asm/byteorder.h> |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * macros for conversion between host and (internet) network byte order |
| */ |
| |
| #if defined(_BIG_ENDIAN) && !defined(ntohl) && !defined(__lint) |
| /* big-endian */ |
| #define ntohl(x) (x) |
| #define ntohs(x) (x) |
| #define htonl(x) (x) |
| #define htons(x) (x) |
| |
| #elif !defined(ntohl) /* little-endian */ |
| |
| #ifndef _IN_PORT_T |
| #define _IN_PORT_T |
| typedef uint16_t in_port_t; |
| #endif |
| |
| #ifndef _IN_ADDR_T |
| #define _IN_ADDR_T |
| typedef uint32_t in_addr_t; |
| #endif |
| |
| #if !defined(_XPG4_2) || defined(__EXTENSIONS__) || defined(_XPG5) |
| extern uint32_t htonl(uint32_t); |
| extern uint16_t htons(uint16_t); |
| extern uint32_t ntohl(uint32_t); |
| extern uint16_t ntohs(uint16_t); |
| #else |
| extern in_addr_t htonl(in_addr_t); |
| extern in_port_t htons(in_port_t); |
| extern in_addr_t ntohl(in_addr_t); |
| extern in_port_t ntohs(in_port_t); |
| #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) || defined(_XPG5) */ |
| #endif |
| |
| #if !defined(_XPG4_2) || defined(__EXTENSIONS__) |
| |
| /* |
| * Macros to reverse byte order |
| */ |
| #define BSWAP_8(x) ((x) & 0xff) |
| #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) |
| #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) |
| #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) |
| |
| #define BMASK_8(x) ((x) & 0xff) |
| #define BMASK_16(x) ((x) & 0xffff) |
| #define BMASK_32(x) ((x) & 0xffffffff) |
| #define BMASK_64(x) (x) |
| |
| /* |
| * Macros to convert from a specific byte order to/from native byte order |
| */ |
| #ifdef _BIG_ENDIAN |
| #define BE_8(x) BMASK_8(x) |
| #define BE_16(x) BMASK_16(x) |
| #define BE_32(x) BMASK_32(x) |
| #define BE_64(x) BMASK_64(x) |
| #define LE_8(x) BSWAP_8(x) |
| #define LE_16(x) BSWAP_16(x) |
| #define LE_32(x) BSWAP_32(x) |
| #define LE_64(x) BSWAP_64(x) |
| #else |
| #define LE_8(x) BMASK_8(x) |
| #define LE_16(x) BMASK_16(x) |
| #define LE_32(x) BMASK_32(x) |
| #define LE_64(x) BMASK_64(x) |
| #define BE_8(x) BSWAP_8(x) |
| #define BE_16(x) BSWAP_16(x) |
| #define BE_32(x) BSWAP_32(x) |
| #define BE_64(x) BSWAP_64(x) |
| #endif |
| |
| #ifdef _BIG_ENDIAN |
| static __inline__ uint64_t |
| htonll(uint64_t n) |
| { |
| return (n); |
| } |
| |
| static __inline__ uint64_t |
| ntohll(uint64_t n) |
| { |
| return (n); |
| } |
| #else |
| static __inline__ uint64_t |
| htonll(uint64_t n) |
| { |
| return ((((uint64_t)htonl(n)) << 32) + htonl(n >> 32)); |
| } |
| |
| static __inline__ uint64_t |
| ntohll(uint64_t n) |
| { |
| return ((((uint64_t)ntohl(n)) << 32) + ntohl(n >> 32)); |
| } |
| #endif |
| |
| /* |
| * Macros to read unaligned values from a specific byte order to |
| * native byte order |
| */ |
| |
| #define BE_IN8(xa) \ |
| *((uint8_t *)(xa)) |
| |
| #define BE_IN16(xa) \ |
| (((uint16_t)BE_IN8(xa) << 8) | BE_IN8((uint8_t *)(xa)+1)) |
| |
| #define BE_IN32(xa) \ |
| (((uint32_t)BE_IN16(xa) << 16) | BE_IN16((uint8_t *)(xa)+2)) |
| |
| #define BE_IN64(xa) \ |
| (((uint64_t)BE_IN32(xa) << 32) | BE_IN32((uint8_t *)(xa)+4)) |
| |
| #define LE_IN8(xa) \ |
| *((uint8_t *)(xa)) |
| |
| #define LE_IN16(xa) \ |
| (((uint16_t)LE_IN8((uint8_t *)(xa) + 1) << 8) | LE_IN8(xa)) |
| |
| #define LE_IN32(xa) \ |
| (((uint32_t)LE_IN16((uint8_t *)(xa) + 2) << 16) | LE_IN16(xa)) |
| |
| #define LE_IN64(xa) \ |
| (((uint64_t)LE_IN32((uint8_t *)(xa) + 4) << 32) | LE_IN32(xa)) |
| |
| /* |
| * Macros to write unaligned values from native byte order to a specific byte |
| * order. |
| */ |
| |
| #define BE_OUT8(xa, yv) *((uint8_t *)(xa)) = (uint8_t)(yv); |
| |
| #define BE_OUT16(xa, yv) \ |
| BE_OUT8((uint8_t *)(xa) + 1, yv); \ |
| BE_OUT8((uint8_t *)(xa), (yv) >> 8); |
| |
| #define BE_OUT32(xa, yv) \ |
| BE_OUT16((uint8_t *)(xa) + 2, yv); \ |
| BE_OUT16((uint8_t *)(xa), (yv) >> 16); |
| |
| #define BE_OUT64(xa, yv) \ |
| BE_OUT32((uint8_t *)(xa) + 4, yv); \ |
| BE_OUT32((uint8_t *)(xa), (yv) >> 32); |
| |
| #define LE_OUT8(xa, yv) *((uint8_t *)(xa)) = (uint8_t)(yv); |
| |
| #define LE_OUT16(xa, yv) \ |
| LE_OUT8((uint8_t *)(xa), yv); \ |
| LE_OUT8((uint8_t *)(xa) + 1, (yv) >> 8); |
| |
| #define LE_OUT32(xa, yv) \ |
| LE_OUT16((uint8_t *)(xa), yv); \ |
| LE_OUT16((uint8_t *)(xa) + 2, (yv) >> 16); |
| |
| #define LE_OUT64(xa, yv) \ |
| LE_OUT32((uint8_t *)(xa), yv); \ |
| LE_OUT32((uint8_t *)(xa) + 4, (yv) >> 32); |
| |
| #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _SYS_BYTEORDER_H */ |