2 * Copyright (C) 2004-2007, 2009, 2012, 2015 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: sockaddr.h,v 1.57 2009/01/18 23:48:14 tbox Exp $ */
20 #ifndef ISC_SOCKADDR_H
21 #define ISC_SOCKADDR_H 1
23 /*! \file isc/sockaddr.h */
27 #include <isc/types.h>
28 #ifdef ISC_PLATFORM_HAVESYSUNH
35 struct sockaddr_in sin;
36 struct sockaddr_in6 sin6;
37 struct sockaddr_storage ss;
38 #ifdef ISC_PLATFORM_HAVESYSUNH
39 struct sockaddr_un sunix;
42 unsigned int length; /* XXXRTH beginning? */
43 ISC_LINK(struct isc_sockaddr) link;
46 typedef ISC_LIST(struct isc_sockaddr) isc_sockaddrlist_t;
48 #define ISC_SOCKADDR_CMPADDR 0x0001 /*%< compare the address
49 * sin_addr/sin6_addr */
50 #define ISC_SOCKADDR_CMPPORT 0x0002 /*%< compare the port
51 * sin_port/sin6_port */
52 #define ISC_SOCKADDR_CMPSCOPE 0x0004 /*%< compare the scope
54 #define ISC_SOCKADDR_CMPSCOPEZERO 0x0008 /*%< when comparing scopes
55 * zero scopes always match */
60 isc_sockaddr_compare(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
63 * Compare the elements of the two address ('a' and 'b') as specified
64 * by 'flags' and report if they are equal or not.
66 * 'flags' is set from ISC_SOCKADDR_CMP*.
70 isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b);
72 * Return ISC_TRUE iff the socket addresses 'a' and 'b' are equal.
76 isc_sockaddr_eqaddr(const isc_sockaddr_t *a, const isc_sockaddr_t *b);
78 * Return ISC_TRUE iff the address parts of the socket addresses
79 * 'a' and 'b' are equal, ignoring the ports.
83 isc_sockaddr_eqaddrprefix(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
84 unsigned int prefixlen);
86 * Return ISC_TRUE iff the most significant 'prefixlen' bits of the
87 * socket addresses 'a' and 'b' are equal, ignoring the ports.
88 * If 'b''s scope is zero then 'a''s scope will be ignored.
92 isc_sockaddr_hash(const isc_sockaddr_t *sockaddr, isc_boolean_t address_only);
94 * Return a hash value for the socket address 'sockaddr'. If 'address_only'
95 * is ISC_TRUE, the hash value will not depend on the port.
97 * IPv6 addresses containing mapped IPv4 addresses generate the same hash
98 * value as the equivalent IPv4 address.
102 isc_sockaddr_any(isc_sockaddr_t *sockaddr);
104 * Return the IPv4 wildcard address.
108 isc_sockaddr_any6(isc_sockaddr_t *sockaddr);
110 * Return the IPv6 wildcard address.
114 isc_sockaddr_anyofpf(isc_sockaddr_t *sockaddr, int family);
116 * Set '*sockaddr' to the wildcard address of protocol family
120 * \li 'family' is AF_INET or AF_INET6.
124 isc_sockaddr_fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
127 * Construct an isc_sockaddr_t from an IPv4 address and port.
131 isc_sockaddr_fromin6(isc_sockaddr_t *sockaddr, const struct in6_addr *ina6,
134 * Construct an isc_sockaddr_t from an IPv6 address and port.
138 isc_sockaddr_v6fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
141 * Construct an IPv6 isc_sockaddr_t representing a mapped IPv4 address.
145 isc_sockaddr_fromnetaddr(isc_sockaddr_t *sockaddr, const isc_netaddr_t *na,
148 * Construct an isc_sockaddr_t from an isc_netaddr_t and port.
152 isc_sockaddr_pf(const isc_sockaddr_t *sockaddr);
154 * Get the protocol family of 'sockaddr'.
158 *\li 'sockaddr' is a valid sockaddr with an address family of AF_INET
163 *\li The protocol family of 'sockaddr', e.g. PF_INET or PF_INET6.
167 isc_sockaddr_setport(isc_sockaddr_t *sockaddr, in_port_t port);
169 * Set the port of 'sockaddr' to 'port'.
173 isc_sockaddr_getport(const isc_sockaddr_t *sockaddr);
175 * Get the port stored in 'sockaddr'.
179 isc_sockaddr_totext(const isc_sockaddr_t *sockaddr, isc_buffer_t *target);
181 * Append a text representation of 'sockaddr' to the buffer 'target'.
182 * The text will include both the IP address (v4 or v6) and the port.
183 * The text is null terminated, but the terminating null is not
184 * part of the buffer's used region.
188 * \li ISC_R_NOSPACE The text or the null termination did not fit.
192 isc_sockaddr_format(const isc_sockaddr_t *sa, char *array, unsigned int size);
194 * Format a human-readable representation of the socket address '*sa'
195 * into the character array 'array', which is of size 'size'.
196 * The resulting string is guaranteed to be null-terminated.
200 isc_sockaddr_ismulticast(const isc_sockaddr_t *sa);
202 * Returns #ISC_TRUE if the address is a multicast address.
206 isc_sockaddr_isexperimental(const isc_sockaddr_t *sa);
208 * Returns ISC_TRUE if the address is a experimental (CLASS E) address.
212 isc_sockaddr_islinklocal(const isc_sockaddr_t *sa);
214 * Returns ISC_TRUE if the address is a link local address.
218 isc_sockaddr_issitelocal(const isc_sockaddr_t *sa);
220 * Returns ISC_TRUE if the address is a sitelocal address.
224 isc_sockaddr_isnetzero(const isc_sockaddr_t *sa);
226 * Returns ISC_TRUE if the address is in net zero.
230 isc_sockaddr_frompath(isc_sockaddr_t *sockaddr, const char *path);
232 * Create a UNIX domain sockaddr that refers to path.
236 * \li ISC_R_NOTIMPLEMENTED
240 #define ISC_SOCKADDR_FORMATSIZE \
241 sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:XXX.XXX.XXX.XXX%SSSSSSSSSS#YYYYY")
243 * Minimum size of array to pass to isc_sockaddr_format().
248 #endif /* ISC_SOCKADDR_H */