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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, 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. */
/* */
/**************************************************************************/
#define _GNU_SOURCE
#include <caml/mlvalues.h>
#include "caml/unixsupport.h"
#include <fcntl.h>
CAMLprim value caml_unix_dup(value cloexec, value fd)
{
int ret;
#ifdef F_DUPFD_CLOEXEC
ret = fcntl(Int_val(fd),
(caml_unix_cloexec_p(cloexec) ? F_DUPFD_CLOEXEC : F_DUPFD),
0);
#else
ret = dup(Int_val(fd));
#endif
if (ret == -1) caml_uerror("dup", Nothing);
#ifndef F_DUPFD_CLOEXEC
if (caml_unix_cloexec_p(cloexec)) caml_unix_set_cloexec(ret, "dup", Nothing);
#endif
return Val_int(ret);
}
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