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.
+ (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
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 ENABLE_IPV6
- 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>. */
-
+ /* Address type. */
+ enum {
+ IPV4_ADDRESS
#ifdef ENABLE_IPV6
-# define MAX_IP_ADDRESS_SIZE 16
-#else
-# define MAX_IP_ADDRESS_SIZE 4
-#endif
+ , IPV6_ADDRESS
+#endif /* ENABLE_IPV6 */
+ } type;
-typedef struct {
- unsigned char bytes[MAX_IP_ADDRESS_SIZE];
+ /* Address data union: ipv6 contains IPv6-related data (address and
+ scope), and ipv4 contains the IPv4 address. */
+ union {
+#ifdef ENABLE_IPV6
+ struct {
+ struct in6_addr addr;
+# ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
+ unsigned int scope_id;
+# endif
+ } ipv6;
+#endif /* ENABLE_IPV6 */
+ struct {
+ struct in_addr addr;
+ } ipv4;
+ } u;
} 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));
+/* Because C doesn't support anonymous unions, access to ip_address
+ elements is unwieldy. Hence the accessors.
+
+ The _ADDR accessors return the address as the struct in_addr or
+ in6_addr. The _DATA accessor returns a pointer to the address data
+ -- pretty much the same as the above, but cast to void*. The
+ _SCOPE accessor returns the address's scope_id, and makes sense
+ only when IPv6 and HAVE_SOCKADDR_IN6_SCOPE_ID are both defined. */
+
+#define ADDRESS_IPV4_IN_ADDR(x) ((x)->u.ipv4.addr)
+/* Don't use &x->u.ipv4.addr.s_addr because it can be #defined to a
+ bitfield, which you can't take an address of. */
+#define ADDRESS_IPV4_DATA(x) ((void *)&(x)->u.ipv4.addr)
+
+#define ADDRESS_IPV6_IN6_ADDR(x) ((x)->u.ipv6.addr)
+#define ADDRESS_IPV6_DATA(x) ((void *)&(x)->u.ipv6.addr)
+#define ADDRESS_IPV6_SCOPE(x) ((x)->u.ipv6.scope_id)
+
+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);
+int 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 *);
+int address_list_connected_p (const struct address_list *);
+void address_list_release (struct address_list *);
+
+const char *pretty_print_address (const ip_address *);
+#ifdef ENABLE_IPV6
+int is_valid_ipv6_address (const char *, const char *);
+#endif
-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 */
+int accept_domain (struct url *);
+int sufmatch (const char **, const char *);
+void host_cleanup (void);
#endif /* HOST_H */
projects / wget / blobdiff