37 lines
1.5 KiB
C
37 lines
1.5 KiB
C
/**************************************************************************/
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/* */
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/* OCaml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. */
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/* */
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/* All rights reserved. This file is distributed under the terms of */
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/* the GNU Lesser General Public License version 2.1, with the */
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/* special exception on linking described in the file LICENSE. */
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/* */
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/**************************************************************************/
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#define _GNU_SOURCE
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#include <caml/mlvalues.h>
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#include "unixsupport.h"
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#include <fcntl.h>
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CAMLprim value unix_dup(value cloexec, value fd)
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{
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int ret;
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#ifdef F_DUPFD_CLOEXEC
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ret = fcntl(Int_val(fd),
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(unix_cloexec_p(cloexec) ? F_DUPFD_CLOEXEC : F_DUPFD),
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0);
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#else
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ret = dup(Int_val(fd));
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#endif
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if (ret == -1) uerror("dup", Nothing);
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#ifndef F_DUPFD_CLOEXEC
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if (unix_cloexec_p(cloexec)) unix_set_cloexec(ret, "dup", Nothing);
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#endif
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return Val_int(ret);
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}
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