/* Declarations for host.c
- Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation,
+ Inc.
This file is part of GNU Wget.
GNU Wget is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
GNU Wget is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with Wget; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-In addition, as a special exception, the Free Software Foundation
-gives permission to link the code of its release of Wget with the
-OpenSSL project's "OpenSSL" library (or with modified versions of it
-that use the same license as the "OpenSSL" library), and distribute
-the linked executables. You must obey the GNU General Public License
-in all respects for all of the code used other than "OpenSSL". If you
-modify this file, you may extend this exception to your version of the
-file, but you are not obligated to do so. If you do not wish to do
-so, delete this exception statement from your version. */
+along with Wget. If not, see <http://www.gnu.org/licenses/>.
+
+Additional permission under GNU GPL version 3 section 7
+
+If you modify this program, or any covered work, by linking or
+combining it with the OpenSSL project's OpenSSL library (or a
+modified version of that library), containing parts covered by the
+terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
+grants you additional permission to convey the resulting work.
+Corresponding Source for a non-source form of such a combination
+shall include the source code for the parts of OpenSSL used as well
+as that of the covered work. */
#ifndef HOST_H
#define HOST_H
#ifdef WINDOWS
-# include <winsock.h>
+# include <winsock2.h>
#else
-# include <netdb.h>
+# ifdef __VMS
+# include "vms_ip.h"
+# else /* def __VMS */
+# include <netdb.h>
+# endif /* def __VMS [else] */
# include <sys/socket.h>
# include <netinet/in.h>
#ifndef __BEOS__
#endif
#endif
-#undef INET6
-
struct url;
struct address_list;
-/* wget_sockaddr is used instead of sockaddr where an IPV6 address
- must fit. */
-
-typedef union {
- struct sockaddr sa; /* Generic but too small */
- struct sockaddr_in sin; /* IPv4 socket address */
-#ifdef INET6
- struct sockaddr_in6 sin6; /* IPv6 socket address */
-#endif
-} wget_sockaddr;
+/* This struct defines an IP address, tagged with family type. */
typedef struct {
- unsigned char bytes[4];
-} ip4_address;
-
-/* If compiled with IPv6 support, we internally represent all IP
- addresses as IPv6 addresses. IPv4 addresses are dynamically mapped
- to IPv6, i.e. stored in the format ::ffff:<Ipv4>. */
-
-#ifdef INET6
-# define MAX_IP_ADDRESS_SIZE 16
-#else
-# define MAX_IP_ADDRESS_SIZE 4
+ /* Address family, one of AF_INET or AF_INET6. */
+ int family;
+
+ /* The actual data, in the form of struct in_addr or in6_addr: */
+ union {
+ struct in_addr d4; /* IPv4 address */
+#ifdef ENABLE_IPV6
+ struct in6_addr d6; /* IPv6 address */
#endif
+ } data;
-typedef struct {
- unsigned char bytes[MAX_IP_ADDRESS_SIZE];
+ /* Under IPv6 getaddrinfo also returns scope_id. Since it's
+ IPv6-specific it strictly belongs in the above union, but we put
+ it here for simplicity. */
+#if defined ENABLE_IPV6 && defined HAVE_SOCKADDR_IN6_SCOPE_ID
+ int ipv6_scope;
+#endif
} ip_address;
-/* Function declarations */
-struct address_list *lookup_host PARAMS ((const char *, int));
-char *herrmsg PARAMS ((int));
-
-void address_list_get_bounds PARAMS ((struct address_list *, int *, int *));
-void address_list_copy_one PARAMS ((struct address_list *, int,
- ip_address *));
-int address_list_match_all PARAMS ((struct address_list *,
- struct address_list *));
-void address_list_set_faulty PARAMS ((struct address_list *, int));
-void address_list_release PARAMS ((struct address_list *));
-
-char *pretty_print_address PARAMS ((ip_address *));
-
-int accept_domain PARAMS ((struct url *));
-int sufmatch PARAMS ((const char **, const char *));
+/* IP_INADDR_DATA macro returns a void pointer that can be interpreted
+ as a pointer to struct in_addr in IPv4 context or a pointer to
+ struct in6_addr in IPv4 context. This pointer can be passed to
+ functions that work on either, such as inet_ntop. */
+#define IP_INADDR_DATA(x) ((void *) &(x)->data)
+
+enum {
+ LH_SILENT = 1,
+ LH_BIND = 2,
+ LH_REFRESH = 4
+};
+struct address_list *lookup_host (const char *, int);
+
+void address_list_get_bounds (const struct address_list *, int *, int *);
+const ip_address *address_list_address_at (const struct address_list *, int);
+bool address_list_contains (const struct address_list *, const ip_address *);
+void address_list_set_faulty (struct address_list *, int);
+void address_list_set_connected (struct address_list *);
+bool address_list_connected_p (const struct address_list *);
+void address_list_release (struct address_list *);
+
+const char *print_address (const ip_address *);
+#ifdef ENABLE_IPV6
+bool is_valid_ipv6_address (const char *, const char *);
+#endif
-void host_cleanup PARAMS ((void));
+bool is_valid_ip_address (const char *name);
-void wget_sockaddr_set_address PARAMS((wget_sockaddr *, int,
- unsigned short, ip_address *));
-void wget_sockaddr_set_port PARAMS((wget_sockaddr *, unsigned short));
-void *wget_sockaddr_get_addr PARAMS((wget_sockaddr *));
-unsigned short wget_sockaddr_get_port PARAMS((const wget_sockaddr *));
-int sockaddr_len PARAMS(());
-void map_ipv4_to_ip PARAMS((ip4_address *, ip_address *));
-int map_ip_to_ipv4 PARAMS((ip_address *, ip4_address *));
-
-extern int ip_default_family; /* defined in host.c */
+bool accept_domain (struct url *);
+bool sufmatch (const char **, const char *);
+void host_cleanup (void);
#endif /* HOST_H */
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