| 1 | /*-
|
|---|
| 2 | * Copyright (c) 1991 The Regents of the University of California.
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * This code is derived from software contributed to Berkeley by
|
|---|
| 6 | * Kenneth Almquist.
|
|---|
| 7 | *
|
|---|
| 8 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 9 | * modification, are permitted provided that the following conditions
|
|---|
| 10 | * are met:
|
|---|
| 11 | * 1. Redistributions of source code must retain the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 13 | * 2. Redistributions in binary form must reproduce the above copyright
|
|---|
| 14 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 15 | * documentation and/or other materials provided with the distribution.
|
|---|
| 16 | * 3. All advertising materials mentioning features or use of this software
|
|---|
| 17 | * must display the following acknowledgement:
|
|---|
| 18 | * This product includes software developed by the University of
|
|---|
| 19 | * California, Berkeley and its contributors.
|
|---|
| 20 | * 4. Neither the name of the University nor the names of its contributors
|
|---|
| 21 | * may be used to endorse or promote products derived from this software
|
|---|
| 22 | * without specific prior written permission.
|
|---|
| 23 | *
|
|---|
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|---|
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|---|
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|---|
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|---|
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|---|
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|---|
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|---|
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|---|
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|---|
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|---|
| 34 | * SUCH DAMAGE.
|
|---|
| 35 | *
|
|---|
| 36 | * @(#)redir.h 5.1 (Berkeley) 3/7/91
|
|---|
| 37 | */
|
|---|
| 38 |
|
|---|
| 39 | /* flags passed to redirect */
|
|---|
| 40 | #define REDIR_PUSH 01 /* save previous values of file descriptors */
|
|---|
| 41 | #define REDIR_BACKQ 02 /* save the command output in memory */
|
|---|
| 42 |
|
|---|
| 43 | #ifdef __STDC__
|
|---|
| 44 | union node;
|
|---|
| 45 | void redirect(union node *, int);
|
|---|
| 46 | void popredir(void);
|
|---|
| 47 | void clearredir(void);
|
|---|
| 48 | int copyfd(int, int);
|
|---|
| 49 | int fd0_redirected_p(void);
|
|---|
| 50 | #else
|
|---|
| 51 | void redirect();
|
|---|
| 52 | void popredir();
|
|---|
| 53 | void clearredir();
|
|---|
| 54 | int copyfd();
|
|---|
| 55 | int fd0_redirected_p();
|
|---|
| 56 | #endif
|
|---|
