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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 2004 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <string.h>
#include <caml/mlvalues.h>
#include <caml/alloc.h>
#include <caml/fail.h>
#include <caml/memory.h>
#include <caml/signals.h>
#include "caml/unixsupport.h"
#if defined(HAS_SOCKETS) && defined(HAS_IPV6)
#include "caml/socketaddr.h"
#ifndef _WIN32
#include <sys/types.h>
#include <netdb.h>
#endif
static const int getnameinfo_flag_table[] = {
NI_NOFQDN, NI_NUMERICHOST, NI_NAMEREQD, NI_NUMERICSERV, NI_DGRAM
};
CAMLprim value caml_unix_getnameinfo(value vaddr, value vopts)
{
CAMLparam0();
CAMLlocal3(vhost, vserv, vres);
union sock_addr_union addr;
socklen_param_type addr_len;
char host[4096];
char serv[1024];
int opts, retcode;
caml_unix_get_sockaddr(vaddr, &addr, &addr_len);
opts = caml_convert_flag_list(vopts, getnameinfo_flag_table);
caml_enter_blocking_section();
retcode =
getnameinfo((const struct sockaddr *) &addr.s_gen, addr_len,
host, sizeof(host), serv, sizeof(serv), opts);
caml_leave_blocking_section();
/* TODO: detailed error reporting? */
if (retcode != 0) caml_raise_not_found();
vhost = caml_copy_string(host);
vserv = caml_copy_string(serv);
vres = caml_alloc_small(2, 0);
Field(vres, 0) = vhost;
Field(vres, 1) = vserv;
CAMLreturn(vres);
}
#else
CAMLprim value caml_unix_getnameinfo(value vaddr, value vopts)
{ caml_invalid_argument("getnameinfo not implemented"); }
#endif
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