1 /* Declarations for host.c
2 Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
4 This file is part of GNU Wget.
6 GNU Wget is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 GNU Wget is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Wget; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 In addition, as a special exception, the Free Software Foundation
21 gives permission to link the code of its release of Wget with the
22 OpenSSL project's "OpenSSL" library (or with modified versions of it
23 that use the same license as the "OpenSSL" library), and distribute
24 the linked executables. You must obey the GNU General Public License
25 in all respects for all of the code used other than "OpenSSL". If you
26 modify this file, you may extend this exception to your version of the
27 file, but you are not obligated to do so. If you do not wish to do
28 so, delete this exception statement from your version. */
37 # include <sys/socket.h>
38 # include <netinet/in.h>
40 # include <arpa/inet.h>
47 extern int ip_default_family; /* defined in host.c */
49 /* This struct defines an IP address, tagged with family type. */
57 #endif /* ENABLE_IPV6 */
60 /* Address data union: ipv6 contains IPv6-related data (address and
61 scope), and ipv4 contains IPv4 address. */
66 #ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
67 unsigned int scope_id;
68 #endif /* HAVE_SOCKADDR_IN6_SCOPE_ID */
70 #endif /* ENABLE_IPV6 */
77 /* Because C doesn't support anonymous unions, access to ip_address
78 elements is clunky. Hence the accessors. */
80 #define ADDRESS_IPV6_IN6_ADDR(x) ((x)->u.ipv6.addr)
81 #define ADDRESS_IPV6_DATA(x) ((void *)&(x)->u.ipv6.addr.s6_addr)
82 #define ADDRESS_IPV6_SCOPE(x) ((x)->u.ipv6.scope_id)
84 #define ADDRESS_IPV4_IN_ADDR(x) ((x)->u.ipv4.addr)
85 #define ADDRESS_IPV4_DATA(x) ((void *)&(x)->u.ipv4.addr.s_addr)
88 # ifndef HAVE_SOCKADDR_STORAGE
89 # define sockaddr_storage sockaddr_in
91 #endif /* ENABLE_IPV6 */
93 /* Flags for lookup_host */
94 #define LH_SILENT 0x0001
95 #define LH_PASSIVE 0x0002
96 #define LH_IPV4_ONLY 0x0004
97 #define LH_IPV6_ONLY 0x0008
99 /* Function declarations */
100 struct address_list *lookup_host PARAMS ((const char *, int));
101 char *herrmsg PARAMS ((int));
103 void address_list_get_bounds PARAMS ((const struct address_list *,
105 void address_list_copy_one PARAMS ((const struct address_list *, int,
107 int address_list_match_all PARAMS ((const struct address_list *,
108 const struct address_list *));
109 void address_list_set_faulty PARAMS ((struct address_list *, int));
110 void address_list_release PARAMS ((struct address_list *));
112 const char *pretty_print_address PARAMS ((const ip_address *));
114 int accept_domain PARAMS ((struct url *));
115 int sufmatch PARAMS ((const char **, const char *));
117 void sockaddr_set_address PARAMS ((struct sockaddr *, unsigned short,
118 const ip_address *));
119 void sockaddr_get_address PARAMS ((const struct sockaddr *, unsigned short *,
121 unsigned short sockaddr_get_port PARAMS ((const struct sockaddr *));
122 socklen_t sockaddr_len PARAMS ((const struct sockaddr *sa));
124 void host_cleanup PARAMS ((void));