DNS IPV6--inet_ntop, Inet_pton

I was strange, in the Win32 project to import the # include <WS2tcpip.h> after the use of the Inet_ntop () function without pressure, but in the DLL project error: Intellisense:identifier "inet_ Ntop "is undefined, really do not understand, have a friend can tell me ah. It's urgent to use it, only with your own function.

Inet_ntop (): Converts an IPV4 or IPV6 Internet network address to a string in Internet standard format.

const char *inet_ntop (int af, const void *SRC, char *dst, socklen_t cnt) {    if (af = = af_inet)    {        struct sockaddr _in in;        memset (&in, 0, sizeof (in));        in.sin_family = af_inet;        memcpy (&in.sin_addr, SRC, sizeof (struct in_addr));        Getnameinfo (struct sockaddr *) &in, sizeof (struct            sockaddr_in), DST, CNT, NULL, 0, ni_numerichost);        return DST;    }    else if (AF = = Af_inet6)    {        struct sockaddr_in6 in;        memset (&in, 0, sizeof (in));        in.sin6_family = Af_inet6;        memcpy (&in.sin6_addr, SRC, sizeof (struct IN_ADDR6));        Getnameinfo (struct sockaddr *) &in, sizeof (struct            sockaddr_in6), DST, CNT, NULL, 0, ni_numerichost);        return DST;    }    return NULL;}

Inet_pton (): Converts an IPV4 or IPv6 Internet Network address on its standard text presentation form into its numeric Bina Ry form.

int Inet_pton (int af, const char *src, void *dst) {    struct addrinfo hints, *res, *ressave;    memset (&hints, 0, sizeof (struct addrinfo));    hints.ai_family = AF;    if (getaddrinfo (SRC, NULL, &hints, &res)! = 0)    {//commented out because Dolog and Log_err is not defined.../ /        Dolog (Log_err, "couldn ' t resolve host%s\n", SRC);        return-1;    }    Ressave = res;    while (res)    {        memcpy (DST, res->ai_addr, Res->ai_addrlen);        res = res->ai_next;    }    Freeaddrinfo (ressave);    return 0;}

Not to be continued!

DNS IPV6--inet_ntop, Inet_pton