mirror of https://github.com/moparisthebest/wget
124 lines
4.0 KiB
C
124 lines
4.0 KiB
C
/* Declarations for host.c
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Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
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This file is part of GNU Wget.
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GNU Wget is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GNU Wget is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Wget; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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In addition, as a special exception, the Free Software Foundation
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gives permission to link the code of its release of Wget with the
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OpenSSL project's "OpenSSL" library (or with modified versions of it
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that use the same license as the "OpenSSL" library), and distribute
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the linked executables. You must obey the GNU General Public License
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in all respects for all of the code used other than "OpenSSL". If you
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modify this file, you may extend this exception to your version of the
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file, but you are not obligated to do so. If you do not wish to do
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so, delete this exception statement from your version. */
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#ifndef HOST_H
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#define HOST_H
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#ifdef WINDOWS
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# include <winsock.h>
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#else
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# include <netdb.h>
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# include <sys/socket.h>
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# include <netinet/in.h>
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#ifndef __BEOS__
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# include <arpa/inet.h>
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#endif
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#endif
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struct url;
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struct address_list;
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/* This struct defines an IP address, tagged with family type. */
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typedef struct {
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/* Address type. */
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enum {
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IPV4_ADDRESS,
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#ifdef ENABLE_IPV6
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IPV6_ADDRESS
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#endif /* ENABLE_IPV6 */
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} type;
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/* Address data union: ipv6 contains IPv6-related data (address and
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scope), and ipv4 contains the IPv4 address. */
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union {
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#ifdef ENABLE_IPV6
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struct {
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struct in6_addr addr;
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#ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
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unsigned int scope_id;
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#endif /* HAVE_SOCKADDR_IN6_SCOPE_ID */
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} ipv6;
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#endif /* ENABLE_IPV6 */
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struct {
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struct in_addr addr;
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} ipv4;
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} u;
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} ip_address;
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/* Because C doesn't support anonymous unions, access to ip_address
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elements is unwieldy. Hence the accessors.
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The _ADDR accessors return the address as the struct in_addr or
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in6_addr. The _DATA accessor returns a pointer to the address data
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-- pretty much the same as the above, but cast to void*. The
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_SCOPE accessor returns the address's scope_id, and makes sense
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only when IPv6 and HAVE_SOCKADDR_IN6_SCOPE_ID are both defined. */
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#define ADDRESS_IPV4_IN_ADDR(x) ((x)->u.ipv4.addr)
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/* Don't use &x->u.ipv4.addr.s_addr because it can be #defined to a
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bitfield, which you can't take an address of. */
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#define ADDRESS_IPV4_DATA(x) ((void *)&(x)->u.ipv4.addr)
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#define ADDRESS_IPV6_IN6_ADDR(x) ((x)->u.ipv6.addr)
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#define ADDRESS_IPV6_DATA(x) ((void *)&(x)->u.ipv6.addr)
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#define ADDRESS_IPV6_SCOPE(x) ((x)->u.ipv6.scope_id)
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/* Flags for lookup_host */
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#define LH_SILENT 0x0001
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#define LH_PASSIVE 0x0002
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#define LH_IPV4_ONLY 0x0004
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#define LH_IPV6_ONLY 0x0008
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/* Function declarations */
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struct address_list *lookup_host PARAMS ((const char *, int));
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char *herrmsg PARAMS ((int));
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void forget_host_lookup PARAMS ((const char *));
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void address_list_get_bounds PARAMS ((const struct address_list *,
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int *, int *));
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int address_list_cached_p PARAMS ((const struct address_list *));
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const ip_address *address_list_address_at PARAMS ((const struct address_list *,
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int));
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int address_list_match_all PARAMS ((const struct address_list *,
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const struct address_list *));
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void address_list_set_faulty PARAMS ((struct address_list *, int));
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void address_list_release PARAMS ((struct address_list *));
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const char *pretty_print_address PARAMS ((const ip_address *));
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int accept_domain PARAMS ((struct url *));
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int sufmatch PARAMS ((const char **, const char *));
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void host_cleanup PARAMS ((void));
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#endif /* HOST_H */
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