#ifndef __IPSTACK_H__
#define __IPSTACK_H__ 1

#ifdef OLD_IP_STACK

# ifndef EAI_FAMILY
#  define EAI_FAMILY (-1)
#  define EAI_FAIL   (-2)
#  define EAI_SYSTEM (-3)
#  define EAI_MEMORY (-4)
# endif

# ifndef NI_NUMERICHOST
#  define NI_NUMERICHOST (1 << 0)
#  define NI_MAXHOST 1025
#  define NI_MAXSERV 32
#  define NI_NUMERICSERV 2
# endif

# ifndef AI_PASSIVE
#  define AI_PASSIVE (1 << 0)
# endif

# ifndef HAVE_STRUCT_ADDRINFO
struct addrinfo {
    int ai_flags;
    int ai_family;
    int ai_socktype;
    int ai_protocol;
    int ai_addrlen;
    struct sockaddr *ai_addr;
    char *ai_canonname;
    struct addrinfo *ai_next;
};
# endif

# if !defined(HAVE_GETADDRINFO) && !defined(HAVE_GETNAMEINFO)
#  define sockaddr_storage sockaddr_in
#  define ss_family sin_family
#  ifdef HAVE_SIN_LEN
#   define ss_len sin_len
#   define HAVE_SS_LEN 1
#  endif
#  define sockaddr_in6 sockaddr_in
#  define sin6_port sin_port
#  define sin6_addr sin_addr
#  define in6_addr in_addr
#  define s6_addr s_addr
# endif

# ifndef AF_INET6
#  define AF_INET6 AF_UNSPEC
#  define PF_INET6 AF_INET6
# endif

# ifndef IN6ADDR_ANY_INIT
#  define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
# endif
# ifndef IN6ADDR_LOOPBACK_INIT
#  define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
# endif

# ifndef INET6_ADDRSTRLEN
#  define INET6_ADDRSTRLEN 46
# endif
# ifndef IN6_IS_ADDR_UNSPECIFIED
#  define IN6_IS_ADDR_UNSPECIFIED(a) 0
# endif
# ifndef IN6_IS_ADDR_LOOPBACK
#  define IN6_IS_ADDR_LOOPBACK(a) 0
# endif
# ifndef IN6_IS_ADDR_MULTICAST
#  define IN6_IS_ADDR_MULTICAST(a) 0
# endif
# ifndef IN6_IS_ADDR_LINKLOCAL
#  define IN6_IS_ADDR_LINKLOCAL(a) 0
# endif
# ifndef IN6_IS_ADDR_SITELOCAL
#  define IN6_IS_ADDR_SITELOCAL(a) 0
# endif
# ifndef IN6_IS_ADDR_V4MAPPED
#  define IN6_IS_ADDR_V4MAPPED(a) 0
# endif
# ifndef IN6_IS_ADDR_V4COMPAT
#  define IN6_IS_ADDR_V4COMPAT(a) 0
# endif
# ifndef IN6_ARE_ADDR_EQUAL
#  define IN6_ARE_ADDR_EQUAL(a,b) 0
# endif

# if !defined(HAVE_INET_NTOP) && !defined(inet_ntop)
#  define inet_ntop(AF, SRC, DST) inet_aton(SRC, (struct in_addr *) (DST))
# endif

# if !defined(HAVE_INET_PTON) && !defined(inet_pton)
int inet_pton(int af, const char *src, void *dst);
# endif

# ifndef HAVE_GETNAMEINFO
int getnameinfo(const struct sockaddr *sa_, socklen_t salen,
                char *host, size_t hostlen,
                char *serv, size_t servlen, int flags);
# endif

# ifndef HAVE_GETADDRINFO
int getaddrinfo(const char *node, const char *service,
                const struct addrinfo *hints, struct addrinfo **res);

void freeaddrinfo(struct addrinfo *res);
# endif

#endif

in_port_t *
storage_port(struct sockaddr_storage * const ss);
const in_port_t *
storage_port_const(const struct sockaddr_storage * const ss);

in_port_t *
storage_port6(struct sockaddr_storage * const ss);
const in_port_t *
storage_port6_const(const struct sockaddr_storage * const ss);

struct in_addr *
storage_sin_addr(struct sockaddr_storage * const ss);
const struct in_addr *
storage_sin_addr_const(const struct sockaddr_storage * const ss);

struct in6_addr *
storage_sin_addr6(struct sockaddr_storage * const ss);
const struct in6_addr *
storage_sin_addr6_const(const struct sockaddr_storage * const ss);

#endif