| 1 | /* $NetBSD: nodes.c.pat,v 1.12 2004/06/15 22:57:27 dsl Exp $ */
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| 2 |
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| 3 | /*-
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| 4 | * Copyright (c) 1991, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * This code is derived from software contributed to Berkeley by
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| 8 | * Kenneth Almquist.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without
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| 11 | * modification, are permitted provided that the following conditions
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| 12 | * are met:
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| 13 | * 1. Redistributions of source code must retain the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in the
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| 17 | * documentation and/or other materials provided with the distribution.
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| 18 | * 3. Neither the name of the University nor the names of its contributors
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| 19 | * may be used to endorse or promote products derived from this software
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| 20 | * without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 32 | * SUCH DAMAGE.
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| 33 | *
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| 34 | * @(#)nodes.c.pat 8.2 (Berkeley) 5/4/95
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| 35 | */
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| 36 |
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| 37 | #include <stdlib.h>
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| 38 | /*
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| 39 | * Routine for dealing with parsed shell commands.
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| 40 | */
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| 41 |
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| 42 | #include "shell.h"
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| 43 | #include "nodes.h"
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| 44 | #include "memalloc.h"
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| 45 | #include "machdep.h"
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| 46 | #include "mystring.h"
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| 47 |
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| 48 |
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| 49 | int funcblocksize; /* size of structures in function */
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| 50 | int funcstringsize; /* size of strings in node */
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| 51 | pointer funcblock; /* block to allocate function from */
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| 52 | char *funcstring; /* block to allocate strings from */
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| 53 |
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| 54 | %SIZES
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| 55 |
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| 56 |
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| 57 | STATIC void calcsize(union node *);
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| 58 | STATIC void sizenodelist(struct nodelist *);
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| 59 | STATIC union node *copynode(union node *);
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| 60 | STATIC struct nodelist *copynodelist(struct nodelist *);
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| 61 | STATIC char *nodesavestr(char *);
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| 62 |
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| 63 |
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| 64 |
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| 65 | /*
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| 66 | * Make a copy of a parse tree.
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| 67 | */
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| 68 |
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| 69 | union node *
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| 70 | copyfunc(n)
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| 71 | union node *n;
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| 72 | {
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| 73 | if (n == NULL)
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| 74 | return NULL;
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| 75 | funcblocksize = 0;
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| 76 | funcstringsize = 0;
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| 77 | calcsize(n);
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| 78 | funcblock = ckmalloc(funcblocksize + funcstringsize);
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| 79 | funcstring = (char *) funcblock + funcblocksize;
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| 80 | return copynode(n);
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| 81 | }
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| 82 |
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| 83 |
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| 84 |
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| 85 | STATIC void
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| 86 | calcsize(n)
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| 87 | union node *n;
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| 88 | {
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| 89 | %CALCSIZE
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| 90 | }
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| 91 |
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| 92 |
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| 93 |
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| 94 | STATIC void
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| 95 | sizenodelist(lp)
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