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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy and Pascal Cuoq, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 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 <caml/mlvalues.h>
#include <caml/memory.h>
#include "caml/unixsupport.h"
const int caml_unix_socket_domain_table[] = {
PF_UNIX, PF_INET, PF_INET6
};
const int caml_unix_socket_type_table[] = {
SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, SOCK_SEQPACKET
};
SOCKET caml_win32_socket(int domain, int type, int protocol,
LPWSAPROTOCOL_INFO info,
BOOL inherit)
{
SOCKET s;
DWORD flags = WSA_FLAG_OVERLAPPED;
#ifndef WSA_FLAG_NO_HANDLE_INHERIT
#define WSA_FLAG_NO_HANDLE_INHERIT 0x80
#endif
if (! inherit)
flags |= WSA_FLAG_NO_HANDLE_INHERIT;
s = WSASocket(domain, type, protocol, info, 0, flags);
if (s == INVALID_SOCKET) {
if (! inherit && WSAGetLastError() == WSAEINVAL) {
/* WSASocket probably doesn't support WSA_FLAG_NO_HANDLE_INHERIT,
* retry without. */
flags &= ~(DWORD)WSA_FLAG_NO_HANDLE_INHERIT;
s = WSASocket(domain, type, protocol, info, 0, flags);
if (s == INVALID_SOCKET)
goto err;
caml_win32_set_inherit((HANDLE) s, FALSE);
return s;
}
goto err;
}
return s;
err:
caml_win32_maperr(WSAGetLastError());
return INVALID_SOCKET;
}
CAMLprim value caml_unix_socket(value cloexec, value domain, value type,
value proto)
{
CAMLparam4(cloexec, domain, type, proto);
CAMLlocal1(v_socket);
SOCKET s;
s = caml_win32_socket(caml_unix_socket_domain_table[Int_val(domain)],
caml_unix_socket_type_table[Int_val(type)],
Int_val(proto),
NULL,
! caml_unix_cloexec_p(cloexec));
if (s == INVALID_SOCKET)
caml_uerror("socket", Nothing);
v_socket = caml_win32_alloc_socket(s);
CAMLreturn(v_socket);
}
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