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 * %sccs.include.redist.c% 9 * 10 * @(#)redir.h 5.1 (Berkeley) 03/07/91 11 */ 12 13 /* flags passed to redirect */ 14 #define REDIR_PUSH 01 /* save previous values of file descriptors */ 15 #define REDIR_BACKQ 02 /* save the command output in memory */ 16 17 #ifdef __STDC__ 18 union node; 19 void redirect(union node *, int); 20 void popredir(void); 21 void clearredir(void); 22 int copyfd(int, int); 23 #else 24 void redirect(); 25 void popredir(); 26 void clearredir(); 27 int copyfd(); 28 #endif 29