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Diffstat (limited to 'sys/contrib/opensolaris/uts/common/sys/byteorder.h')
| -rw-r--r-- | sys/contrib/opensolaris/uts/common/sys/byteorder.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/sys/contrib/opensolaris/uts/common/sys/byteorder.h b/sys/contrib/opensolaris/uts/common/sys/byteorder.h new file mode 100644 index 0000000..b80a0f0 --- /dev/null +++ b/sys/contrib/opensolaris/uts/common/sys/byteorder.h @@ -0,0 +1,137 @@ +/* + * 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 2005 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 + +#pragma ident "%Z%%M% %I% %E% SMI" + +#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 + +#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_BYTEORDER_H */ |
