Method: Addrinfo#getnameinfo

Defined in:
raddrinfo.c

#getnameinfo ⇒ Array #getnameinfo(flags) ⇒ Array

returns nodename and service as a pair of strings. This converts struct sockaddr in addrinfo to textual representation.

flags should be bitwise OR of Socket::NI_??? constants.

Addrinfo.tcp("127.0.0.1", 80).getnameinfo #=> ["localhost", "www"]

Addrinfo.tcp("127.0.0.1", 80).getnameinfo(Socket::NI_NUMERICSERV)
#=> ["localhost", "80"]

Overloads:

  • #getnameinfo ⇒ Array

    Returns:

  • #getnameinfo(flags) ⇒ Array

    Returns:



2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
 
# File 'raddrinfo.c', line 2384

static VALUE
addrinfo_getnameinfo(int argc, VALUE *argv, VALUE self)
{
    rb_addrinfo_t *rai = get_addrinfo(self);
    VALUE vflags;
    char hbuf[1024], pbuf[1024];
    int flags, error;

    rb_scan_args(argc, argv, "01", &vflags);

    flags = NIL_P(vflags) ? 0 : NUM2INT(vflags);

    if (rai->socktype == SOCK_DGRAM)
        flags |= NI_DGRAM;

    error = rb_getnameinfo(&rai->addr.addr, rai->sockaddr_len,
                           hbuf, (socklen_t)sizeof(hbuf), pbuf, (socklen_t)sizeof(pbuf),
                           flags);
    if (error) {
        rsock_raise_resolution_error("getnameinfo", error);
    }

    return rb_assoc_new(rb_str_new2(hbuf), rb_str_new2(pbuf));
}