/* Declarations for host.c
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
This file is part of GNU Wget.
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. */
+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. */
#ifndef HOST_H
#define HOST_H
+#ifdef WINDOWS
+# include <winsock.h>
+#else
+# include <netdb.h>
+# include <sys/socket.h>
+# include <netinet/in.h>
+#ifndef __BEOS__
+# include <arpa/inet.h>
+#endif
+#endif
+
+#undef INET6
+
struct url;
+struct address_list;
-/* Function declarations */
+/* 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;
+
+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>. */
-int lookup_host PARAMS ((const char *, unsigned char *));
+#ifdef INET6
+# define MAX_IP_ADDRESS_SIZE 16
+#else
+# define MAX_IP_ADDRESS_SIZE 4
+#endif
+
+typedef struct {
+ unsigned char bytes[MAX_IP_ADDRESS_SIZE];
+} 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 *));
void host_cleanup PARAMS ((void));
+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 */
+
+
#endif /* HOST_H */