4.104.114.84.95
Last change
on this file since d6ad3b5 was
9c49db4,
checked in by Joel Sherrill <joel.sherrill@…>, on 01/08/01 at 18:26:44
|
2001-01-08 Ralf Corsepius <corsepiu@…>
- configure.in: Add libc/config.h
- libc/Makefile.am: Add INCLUDES += -I. to pickup config.h
- libc/.cvsignore: Add config.h and stamp-h
- libc/*.c: Add config.h support.
|
-
Property mode set to
100644
|
File size:
944 bytes
|
Line | |
---|
1 | /* |
---|
2 | * dup2() - POSIX 1003.1b 6.2.1 Duplicate an Open File Descriptor |
---|
3 | * |
---|
4 | * COPYRIGHT (c) 1989-1999. |
---|
5 | * On-Line Applications Research Corporation (OAR). |
---|
6 | * |
---|
7 | * The license and distribution terms for this file may be |
---|
8 | * found in the file LICENSE in this distribution or at |
---|
9 | * http://www.OARcorp.com/rtems/license.html. |
---|
10 | * |
---|
11 | * $Id$ |
---|
12 | */ |
---|
13 | |
---|
14 | #if HAVE_CONFIG_H |
---|
15 | #include "config.h" |
---|
16 | #endif |
---|
17 | |
---|
18 | #include <unistd.h> |
---|
19 | #include <fcntl.h> |
---|
20 | |
---|
21 | #include <rtems/libio_.h> |
---|
22 | |
---|
23 | int dup2( |
---|
24 | int fildes, |
---|
25 | int fildes2 |
---|
26 | ) |
---|
27 | { |
---|
28 | int status; |
---|
29 | struct stat buf; |
---|
30 | |
---|
31 | /* |
---|
32 | * If fildes is not valid, then fildes2 should not be closed. |
---|
33 | */ |
---|
34 | |
---|
35 | status = fstat( fildes, &buf ); |
---|
36 | if ( status == -1 ) |
---|
37 | return -1; |
---|
38 | |
---|
39 | /* |
---|
40 | * If fildes2 is not valid, then we should not do anything either. |
---|
41 | */ |
---|
42 | |
---|
43 | status = fstat( fildes2, &buf ); |
---|
44 | if ( status == -1 ) |
---|
45 | return -1; |
---|
46 | |
---|
47 | /* |
---|
48 | * This fcntl handles everything else. |
---|
49 | */ |
---|
50 | |
---|
51 | return fcntl( fildes, F_DUPFD, fildes2 ); |
---|
52 | } |
---|
Note: See
TracBrowser
for help on using the repository browser.