typedef struct {
/* Address type. */
enum {
- IPV4_ADDRESS,
+ IPV4_ADDRESS
#ifdef ENABLE_IPV6
- IPV6_ADDRESS
+ , IPV6_ADDRESS
#endif /* ENABLE_IPV6 */
} type;
/* Address data union: ipv6 contains IPv6-related data (address and
- scope), and ipv4 contains IPv4 address. */
+ scope), and ipv4 contains the IPv4 address. */
union {
#ifdef ENABLE_IPV6
struct {
struct in6_addr addr;
-#ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
+# ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
unsigned int scope_id;
-#endif /* HAVE_SOCKADDR_IN6_SCOPE_ID */
+# endif
} ipv6;
#endif /* ENABLE_IPV6 */
struct {
} ip_address;
/* Because C doesn't support anonymous unions, access to ip_address
- elements is clunky. Hence the accessors. */
+ elements is unwieldy. Hence the accessors.
-#define ADDRESS_IPV6_IN6_ADDR(x) ((x)->u.ipv6.addr)
-#define ADDRESS_IPV6_DATA(x) ((void *)&(x)->u.ipv6.addr.s6_addr)
-#define ADDRESS_IPV6_SCOPE(x) ((x)->u.ipv6.scope_id)
+ 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)
-#define ADDRESS_IPV4_DATA(x) ((void *)&(x)->u.ipv4.addr.s_addr)
-
-/* Flags for lookup_host */
-#define LH_SILENT 0x0001
-#define LH_PASSIVE 0x0002
-#define LH_IPV4_ONLY 0x0004
-#define LH_IPV6_ONLY 0x0008
-
-/* Function declarations */
-struct address_list *lookup_host PARAMS ((const char *, int));
-char *herrmsg PARAMS ((int));
-
-void forget_host_lookup PARAMS ((const char *));
+/* 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)
-void address_list_get_bounds PARAMS ((const struct address_list *,
- int *, int *));
-int address_list_cached_p PARAMS ((const struct address_list *));
-const ip_address *address_list_address_at PARAMS ((const struct address_list *,
- int));
-int address_list_match_all PARAMS ((const struct address_list *,
- const struct address_list *));
-void address_list_set_faulty PARAMS ((struct address_list *, int));
-void address_list_release PARAMS ((struct address_list *));
+#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)
-const char *pretty_print_address PARAMS ((const ip_address *));
+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
-int accept_domain PARAMS ((struct url *));
-int sufmatch PARAMS ((const char **, const char *));
+int accept_domain (struct url *);
+int sufmatch (const char **, const char *);
-void host_cleanup PARAMS ((void));
+void host_cleanup (void);
#endif /* HOST_H */