[svn] Commit IPv6 support by Thomas Lussnig.

[wget] / src / host.h

diff --git a/src/host.h b/src/host.h
index f99c636c2ae788a3bf374eddcf7c068cfcd7060a..4d89ecf5a37f0a2350cd7c8633c8e41f524b45d3 100644 (file)
--- a/src/host.h
+++ b/src/host.h
@@ -20,28 +20,71 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #ifndef HOST_H
 #define HOST_H
 
+#include <netdb.h>
+
+#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;
+
+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
+#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,
-                                   unsigned char *));
+                                   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 *));
 
-/* This was originally going to be a macro, but then every caller
-   would have to #include the netinet stuff.  */
-char *pretty_print_address PARAMS ((const void *));
+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 */