xref: /openbsd-src/include/arpa/inet.h (revision f09ad35c184d23aeea1c9f04599535e01433c690)
1 /*	$OpenBSD: inet.h,v 1.18 2015/09/14 08:16:14 guenther Exp $	*/
2 
3 /*
4  * ++Copyright++ 1983, 1993
5  * -
6  * Copyright (c) 1983, 1993
7  *    The Regents of the University of California.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  * -
33  * Portions Copyright (c) 1993 by Digital Equipment Corporation.
34  *
35  * Permission to use, copy, modify, and distribute this software for any
36  * purpose with or without fee is hereby granted, provided that the above
37  * copyright notice and this permission notice appear in all copies, and that
38  * the name of Digital Equipment Corporation not be used in advertising or
39  * publicity pertaining to distribution of the document or software without
40  * specific, written prior permission.
41  *
42  * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
43  * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
44  * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
45  * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
46  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
47  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
48  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
49  * SOFTWARE.
50  * -
51  * --Copyright--
52  */
53 
54 /*
55  *	@(#)inet.h	8.1 (Berkeley) 6/2/93
56  *	$From: inet.h,v 8.6 1996/08/08 06:54:29 vixie Exp $
57  */
58 
59 #ifndef _INET_H_
60 #define	_INET_H_
61 
62 /* External definitions for functions in inet(3) */
63 
64 #include <sys/cdefs.h>
65 #include <sys/_endian.h>
66 
67 #ifndef htons
68 #define htons(x)	__htobe16(x)
69 #define htonl(x)	__htobe32(x)
70 #define ntohs(x)	__htobe16(x)
71 #define ntohl(x)	__htobe32(x)
72 #endif
73 
74 #ifndef	_SOCKLEN_T_DEFINED_
75 #define	_SOCKLEN_T_DEFINED_
76 typedef	__socklen_t	socklen_t;	/* length type for network syscalls */
77 #endif
78 
79 #ifndef _IN_TYPES_DEFINED_
80 #define _IN_TYPES_DEFINED_
81 typedef __in_addr_t	in_addr_t;	/* base type for internet address */
82 typedef __in_port_t	in_port_t;	/* IP port type */
83 #endif
84 
85 /*
86  * Buffer lengths for strings containing printable IP addresses
87  */
88 #ifndef INET_ADDRSTRLEN
89 #define INET_ADDRSTRLEN		16
90 #endif
91 #ifndef INET6_ADDRSTRLEN
92 #define INET6_ADDRSTRLEN	46
93 #endif
94 
95 #ifndef _IN_ADDR_DECLARED
96 #define _IN_ADDR_DECLARED
97 /*
98  * IP Version 4 Internet address (a structure for historical reasons)
99  */
100 struct in_addr {
101 	in_addr_t s_addr;
102 };
103 #endif
104 
105 
106 #if __BSD_VISIBLE
107 /* need this for the non-standard stuff */
108 #ifndef _SIZE_T_DEFINED_
109 #define _SIZE_T_DEFINED_
110 typedef __size_t	size_t;
111 #endif
112 #endif
113 
114 
115 __BEGIN_DECLS
116 in_addr_t	 inet_addr(const char *);
117 char		*inet_ntoa(struct in_addr);
118 const char	*inet_ntop(int, const void *__restrict, char *__restrict,
119 		    socklen_t) __attribute__ ((__bounded__(__string__,3,4)));
120 int		 inet_pton(int, const char *__restrict, void *__restrict);
121 
122 #if __BSD_VISIBLE
123 int		 inet_aton(const char *, struct in_addr *);
124 in_addr_t	 inet_lnaof(struct in_addr);
125 struct in_addr	 inet_makeaddr(in_addr_t , in_addr_t);
126 char *		 inet_neta(in_addr_t, char *, size_t)
127 			__attribute__((__bounded__(__string__,2,3)));
128 in_addr_t	 inet_netof(struct in_addr);
129 in_addr_t	 inet_network(const char *);
130 char		*inet_net_ntop(int, const void *, int, char *, size_t)
131 			__attribute__((__bounded__(__string__,4,5)));
132 int		 inet_net_pton(int, const char *, void *, size_t)
133 			__attribute__((__bounded__(__string__,3,4)));
134 #endif /* __BSD_VISIBLE */
135 __END_DECLS
136 
137 #endif /* !_INET_H_ */
138