WebSVN – HelenOS – Diff – /branches/network/uspace/srv/net/include/byteorder.h


/*
 * Copyright (c) 2009 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * 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.
 */
 
/** @addtogroup net
 *  @{
 */
 
/** @file
 *  Host - network byte order manipulation functions.
 */
 
#ifndef __NET_BYTEORDER_H__
#define __NET_BYTEORDER_H__
 
#include <byteorder.h>
 
#include <sys/types.h>
 
#ifdef ARCH_IS_BIG_ENDIAN
 
// Already in the network byte order.
 
    /** Converts the given short number ( 16 bit ) from the host byte order to the network byte order ( big endian ).
     *  @param number The number in the host byte order to be converted.
     *  @returns The number in the network byte order.
     */
    #define htons( number )     ( number )
 
    /** Converts the given long number ( 32 bit ) from the host byte order to the network byte order ( big endian ).
     *  @param number The number in the host byte order to be converted.
     *  @returns The number in the network byte order.
     */
    #define htonl( number )     ( number )
 
    /** Converts the given short number ( 16 bit ) from the network byte order ( big endian ) to the host byte order.
     *  @param number The number in the network byte order to be converted.
     *  @returns The number in the host byte order.
     */
    #define ntohs( number )     ( number )
 
    /** Converts the given long number ( 32 bit ) from the network byte order ( big endian ) to the host byte order.
     *  @param number The number in the network byte order to be converted.
     *  @returns The number in the host byte order.
     */
    #define ntohl( number )     ( number )
 
#else
 
// Has to be swapped.
 
    /** Converts the given short number ( 16 bit ) from the host byte order to the network byte order ( big endian ).
     *  @param number The number in the host byte order to be converted.
     *  @returns The number in the network byte order.
     */
    #define htons( number )     uint16_t_byteorder_swap(( uint16_t )( number ))
 
    /** Converts the given long number ( 32 bit ) from the host byte order to the network byte order ( big endian ).
     *  @param number The number in the host byte order to be converted.
     *  @returns The number in the network byte order.
     */
    #define htonl( number )     uint32_t_byteorder_swap( number )
 
    /** Converts the given short number ( 16 bit ) from the network byte order ( big endian ) to the host byte order.
     *  @param number The number in the network byte order to be converted.
     *  @returns The number in the host byte order.
     */
    #define ntohs( number )     uint16_t_byteorder_swap(( uint16_t )( number ))
 
    /** Converts the given long number ( 32 bit ) from the network byte order ( big endian ) to the host byte order.
     *  @param number The number in the network byte order to be converted.
     *  @returns The number in the host byte order.
     */
    #define ntohl( number )     uint32_t_byteorder_swap( number )
 
#endif
 
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/branches/network/uspace/srv/net/include/byteorder.h – Rev 3912 → 4261

Rev 3912		Rev 4261
1	/*	1	/*
2	* Copyright (c) 2009 Lukas Mejdrech	2	* Copyright (c) 2009 Lukas Mejdrech
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup net	29	/** @addtogroup net
30	* @{	30	* @{
31	*/	31	*/
32		32
33	/** @file	33	/** @file
34	* Host - network byte order manipulation functions.	34	* Host - network byte order manipulation functions.
35	*/	35	*/
36		36
37	#ifndef __NET_BYTEORDER_H__	37	#ifndef __NET_BYTEORDER_H__
38	#define __NET_BYTEORDER_H__	38	#define __NET_BYTEORDER_H__
39		39
40	#include <byteorder.h>	40	#include <byteorder.h>
41		41
-		42	#include <sys/types.h>
-		43
42	#ifdef ARCH_IS_BIG_ENDIAN	44	#ifdef ARCH_IS_BIG_ENDIAN
43		45
44	// Already in the network byte order.	46	// Already in the network byte order.
45		47
46	/** Converts the given short number ( 16 bit ) from the host byte order to the network byte order ( big endian ).	48	/** Converts the given short number ( 16 bit ) from the host byte order to the network byte order ( big endian ).
47	* @param number The number in the host byte order to be converted.	49	* @param number The number in the host byte order to be converted.
48	* @returns The number in the network byte order.	50	* @returns The number in the network byte order.
49	*/	51	*/
50	#define htons( number ) ( number )	52	#define htons( number ) ( number )
51		53
52	/** Converts the given long number ( 32 bit ) from the host byte order to the network byte order ( big endian ).	54	/** Converts the given long number ( 32 bit ) from the host byte order to the network byte order ( big endian ).
53	* @param number The number in the host byte order to be converted.	55	* @param number The number in the host byte order to be converted.
54	* @returns The number in the network byte order.	56	* @returns The number in the network byte order.
55	*/	57	*/
56	#define htonl( number ) ( number )	58	#define htonl( number ) ( number )
57		59
58	/** Converts the given short number ( 16 bit ) from the network byte order ( big endian ) to the host byte order.	60	/** Converts the given short number ( 16 bit ) from the network byte order ( big endian ) to the host byte order.
59	* @param number The number in the network byte order to be converted.	61	* @param number The number in the network byte order to be converted.
60	* @returns The number in the host byte order.	62	* @returns The number in the host byte order.
61	*/	63	*/
62	#define ntohs( number ) ( number )	64	#define ntohs( number ) ( number )
63		65
64	/** Converts the given long number ( 32 bit ) from the network byte order ( big endian ) to the host byte order.	66	/** Converts the given long number ( 32 bit ) from the network byte order ( big endian ) to the host byte order.
65	* @param number The number in the network byte order to be converted.	67	* @param number The number in the network byte order to be converted.
66	* @returns The number in the host byte order.	68	* @returns The number in the host byte order.
67	*/	69	*/
68	#define ntohl( number ) ( number )	70	#define ntohl( number ) ( number )
69		71
70	#else	72	#else
71		73
72	// Has to be swapped.	74	// Has to be swapped.
73		75
74	/** Converts the given short number ( 16 bit ) from the host byte order to the network byte order ( big endian ).	76	/** Converts the given short number ( 16 bit ) from the host byte order to the network byte order ( big endian ).
75	* @param number The number in the host byte order to be converted.	77	* @param number The number in the host byte order to be converted.
76	* @returns The number in the network byte order.	78	* @returns The number in the network byte order.
77	*/	79	*/
78	#define htons( number ) uint16_t_byteorder_swap( number )	80	#define htons( number ) uint16_t_byteorder_swap(( uint16_t )( number ))
79		81
80	/** Converts the given long number ( 32 bit ) from the host byte order to the network byte order ( big endian ).	82	/** Converts the given long number ( 32 bit ) from the host byte order to the network byte order ( big endian ).
81	* @param number The number in the host byte order to be converted.	83	* @param number The number in the host byte order to be converted.
82	* @returns The number in the network byte order.	84	* @returns The number in the network byte order.
83	*/	85	*/
84	#define htonl( number ) uint32_t_byteorder_swap( number )	86	#define htonl( number ) uint32_t_byteorder_swap( number )
85		87
86	/** Converts the given short number ( 16 bit ) from the network byte order ( big endian ) to the host byte order.	88	/** Converts the given short number ( 16 bit ) from the network byte order ( big endian ) to the host byte order.
87	* @param number The number in the network byte order to be converted.	89	* @param number The number in the network byte order to be converted.
88	* @returns The number in the host byte order.	90	* @returns The number in the host byte order.
89	*/	91	*/
90	#define ntohs( number ) uint16_t_byteorder_swap( number )	92	#define ntohs( number ) uint16_t_byteorder_swap(( uint16_t )( number ))
91		93
92	/** Converts the given long number ( 32 bit ) from the network byte order ( big endian ) to the host byte order.	94	/** Converts the given long number ( 32 bit ) from the network byte order ( big endian ) to the host byte order.
93	* @param number The number in the network byte order to be converted.	95	* @param number The number in the network byte order to be converted.
94	* @returns The number in the host byte order.	96	* @returns The number in the host byte order.
95	*/	97	*/
96	#define ntohl( number ) uint32_t_byteorder_swap( number )	98	#define ntohl( number ) uint32_t_byteorder_swap( number )
97		99
98	#endif	100	#endif
99		101
100	#endif	102	#endif
101		103
102	/** @}	104	/** @}
103	*/	105	*/
104		106