blob: 1e9af1b76fb7fcf2b2c8b040cf4432988adc0d45 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* Automatique. Distributed only by permission. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include "unix.h"
#ifdef HAS_DUP2
value unix_dup2(fd1, fd2) /* ML */
value fd1, fd2;
{
if (dup2(Int_val(fd1), Int_val(fd2)) == -1) uerror("dup2", Nothing);
return Val_unit;
}
#else
static int do_dup2(fd1, fd2)
int fd1, fd2;
{
int fd;
int res;
fd = dup(fd1);
if (fd == -1) return -1;
if (fd == fd2) return 0;
res = do_dup2(fd1, fd2);
close(fd);
return res;
}
value unix_dup2(fd1, fd2) /* ML */
value fd1, fd2;
{
close(Int_val(fd2));
if (do_dup2(Int_val(fd1), Int_val(fd2)) == -1) uerror("dup2", Nothing);
return Val_unit;
}
#endif
|
