1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. 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 * @(#)nodes.c.pat 8.2 (Berkeley) 5/4/95
| 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. 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 * @(#)nodes.c.pat 8.2 (Berkeley) 5/4/95
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37 * $FreeBSD: head/bin/sh/nodes.c.pat 50471 1999-08-27 23:15:48Z peter $
| 37 * $FreeBSD: head/bin/sh/nodes.c.pat 90111 2002-02-02 06:50:57Z imp $
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38 */ 39 40#include <stdlib.h> 41/* 42 * Routine for dealing with parsed shell commands. 43 */ 44 45#include "shell.h" 46#include "nodes.h" 47#include "memalloc.h" 48#include "machdep.h" 49#include "mystring.h" 50 51 52int funcblocksize; /* size of structures in function */ 53int funcstringsize; /* size of strings in node */ 54pointer funcblock; /* block to allocate function from */ 55char *funcstring; /* block to allocate strings from */ 56 57%SIZES 58 59
| 38 */ 39 40#include <stdlib.h> 41/* 42 * Routine for dealing with parsed shell commands. 43 */ 44 45#include "shell.h" 46#include "nodes.h" 47#include "memalloc.h" 48#include "machdep.h" 49#include "mystring.h" 50 51 52int funcblocksize; /* size of structures in function */ 53int funcstringsize; /* size of strings in node */ 54pointer funcblock; /* block to allocate function from */ 55char *funcstring; /* block to allocate strings from */ 56 57%SIZES 58 59
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60STATIC void calcsize __P((union node *)); 61STATIC void sizenodelist __P((struct nodelist *)); 62STATIC union node *copynode __P((union node *)); 63STATIC struct nodelist *copynodelist __P((struct nodelist *)); 64STATIC char *nodesavestr __P((char *));
| 60STATIC void calcsize(union node *); 61STATIC void sizenodelist(struct nodelist *); 62STATIC union node *copynode(union node *); 63STATIC struct nodelist *copynodelist(struct nodelist *); 64STATIC char *nodesavestr(char *);
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65 66 67 68/* 69 * Make a copy of a parse tree. 70 */ 71 72union node *
| 65 66 67 68/* 69 * Make a copy of a parse tree. 70 */ 71 72union node *
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73copyfunc(n) 74 union node *n;
| 73copyfunc(union node *n)
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75{ 76 if (n == NULL) 77 return NULL; 78 funcblocksize = 0; 79 funcstringsize = 0; 80 calcsize(n); 81 funcblock = ckmalloc(funcblocksize + funcstringsize); 82 funcstring = (char *)funcblock + funcblocksize; 83 return copynode(n); 84} 85 86 87 88STATIC void
| 74{ 75 if (n == NULL) 76 return NULL; 77 funcblocksize = 0; 78 funcstringsize = 0; 79 calcsize(n); 80 funcblock = ckmalloc(funcblocksize + funcstringsize); 81 funcstring = (char *)funcblock + funcblocksize; 82 return copynode(n); 83} 84 85 86 87STATIC void
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89calcsize(n) 90 union node *n;
| 88calcsize(union node *n)
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91{ 92 %CALCSIZE 93} 94 95 96 97STATIC void
| 89{ 90 %CALCSIZE 91} 92 93 94 95STATIC void
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98sizenodelist(lp) 99 struct nodelist *lp;
| 96sizenodelist(struct nodelist *lp)
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100{ 101 while (lp) { 102 funcblocksize += ALIGN(sizeof(struct nodelist)); 103 calcsize(lp->n); 104 lp = lp->next; 105 } 106} 107 108 109 110STATIC union node *
| 97{ 98 while (lp) { 99 funcblocksize += ALIGN(sizeof(struct nodelist)); 100 calcsize(lp->n); 101 lp = lp->next; 102 } 103} 104 105 106 107STATIC union node *
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111copynode(n) 112 union node *n;
| 108copynode(union node *n)
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113{ 114 union node *new; 115 116 %COPY 117 return new; 118} 119 120 121STATIC struct nodelist *
| 109{ 110 union node *new; 111 112 %COPY 113 return new; 114} 115 116 117STATIC struct nodelist *
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122copynodelist(lp) 123 struct nodelist *lp;
| 118copynodelist(struct nodelist *lp)
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124{ 125 struct nodelist *start; 126 struct nodelist **lpp; 127 128 lpp = &start; 129 while (lp) { 130 *lpp = funcblock; 131 funcblock = (char *)funcblock + ALIGN(sizeof(struct nodelist)); 132 (*lpp)->n = copynode(lp->n); 133 lp = lp->next; 134 lpp = &(*lpp)->next; 135 } 136 *lpp = NULL; 137 return start; 138} 139 140 141 142STATIC char *
| 119{ 120 struct nodelist *start; 121 struct nodelist **lpp; 122 123 lpp = &start; 124 while (lp) { 125 *lpp = funcblock; 126 funcblock = (char *)funcblock + ALIGN(sizeof(struct nodelist)); 127 (*lpp)->n = copynode(lp->n); 128 lp = lp->next; 129 lpp = &(*lpp)->next; 130 } 131 *lpp = NULL; 132 return start; 133} 134 135 136 137STATIC char *
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143nodesavestr(s) 144 char *s;
| 138nodesavestr(char *s)
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145{ 146 char *p = s; 147 char *q = funcstring; 148 char *rtn = funcstring; 149 150 while ((*q++ = *p++) != '\0') 151 continue; 152 funcstring = q; 153 return rtn; 154} 155 156 157 158/* 159 * Free a parse tree. 160 */ 161 162void
| 139{ 140 char *p = s; 141 char *q = funcstring; 142 char *rtn = funcstring; 143 144 while ((*q++ = *p++) != '\0') 145 continue; 146 funcstring = q; 147 return rtn; 148} 149 150 151 152/* 153 * Free a parse tree. 154 */ 155 156void
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163freefunc(n) 164 union node *n;
| 157freefunc(union node *n)
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165{ 166 if (n) 167 ckfree(n); 168}
| 158{ 159 if (n) 160 ckfree(n); 161}
|