109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/*
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* Copyright (c) 2011, Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Chair for Operating Systems,
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* RWTH Aachen University.
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* 4. Neither the name of the Chair for Operating Systems, RWTH Aachen University
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* nor the names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The kernel of MetalSVM uses LwIP as lightweight TCP/IP stack.
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* This header defines only a small wrapper to use LwIP functions
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* from user space.
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*/
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#ifndef __ARPA_INET_H__
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#define __ARPA_INET_H__
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#include <stddef.h>
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#include <sys/types.h>
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#ifdef __cplusplus
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{
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#endif
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/*
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* This is the aligned version of ip_addr_t,
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* used as local variable, on the stack, etc.
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*/
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struct ip_addr {
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uint32_t addr;
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};
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#ifndef LITTLE_ENDIAN
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// Convert an uint16_t from host- to network byte order.
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static inline uint16_t htons(uint16_t n)
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{
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return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);
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}
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// Convert an uint16_t from network- to host byte order.
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static inline uint16_t ntohs(uint16_t n)
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{
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return htons(n);
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}
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// Convert an uint32_t from host- to network byte order.
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static inline uint32_t htonl(uint32_t n)
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{
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return ((n & 0xff) << 24) | ((n & 0xff00) << 8) | ((n & 0xff0000UL) >> 8) |
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((n & 0xff000000UL) >> 24);
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}
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// Convert an uint32_t from network- to host byte order.
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static inline uint32_t ntohl(uint32_t n)
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{
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return htonl(n);
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}
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#else
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#error currently not supported!!!
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#endif
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/** ip_addr_t uses a struct for convenience only, so that the same defines can
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* operate both on ip_addr_t as well as on ip_addr_p_t. */
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typedef struct ip_addr ip_addr_t;
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//typedef struct ip_addr_packed ip_addr_p_t;
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uint32_t ipaddr_addr(const char *cp);
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int ipaddr_aton(const char *cp, ip_addr_t *addr);
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/** returns ptr to static buffer; not reentrant! */
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char *ipaddr_ntoa(const ip_addr_t *addr);
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char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen);
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/* directly map this to the lwip internal functions */
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#define inet_addr(cp) ipaddr_addr(cp)
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#define inet_aton(cp, addr) ipaddr_aton(cp, (ip_addr_t*)addr)
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#define inet_ntoa(addr) ipaddr_ntoa((ip_addr_t*)&(addr))
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#define inet_ntoa_r(addr, buf, buflen) ipaddr_ntoa_r((ip_addr_t*)&(addr), buf, buflen)
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ARPA_INET_H__ */
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