method

gethostname

v1_9_3_125 - Show latest stable - Class: Socket

gethostname()

public

Returns the hostname.

p Socket.gethostname #=> "hal"

Note that it is not guaranteed to be able to convert to IP address using gethostbyname, getaddrinfo, etc. If you need local IP address, use Socket.ip_address_list.

static VALUE
sock_gethostname(VALUE obj)
{
#ifndef HOST_NAME_MAX
#  define HOST_NAME_MAX 1024
#endif
    char buf[HOST_NAME_MAX+1];

    rb_secure(3);
    if (gethostname(buf, (int)sizeof buf - 1) < 0)
        rb_sys_fail("gethostname");

    buf[sizeof buf - 1] = '\0';
    return rb_str_new2(buf);
}

gethostname

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