1 /* $NetBSD: regfree.c,v 1.15 2007/02/09 23:44:18 junyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Henry Spencer. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)regfree.c 8.3 (Berkeley) 3/20/94 35 */ 36 37 /*- 38 * Copyright (c) 1992, 1993, 1994 Henry Spencer. 39 * 40 * This code is derived from software contributed to Berkeley by 41 * Henry Spencer. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)regfree.c 8.3 (Berkeley) 3/20/94 72 */ 73 74 #include <sys/cdefs.h> 75 #if defined(LIBC_SCCS) && !defined(lint) 76 #if 0 77 static char sccsid[] = "@(#)regfree.c 8.3 (Berkeley) 3/20/94"; 78 #else 79 __RCSID("$NetBSD: regfree.c,v 1.15 2007/02/09 23:44:18 junyoung Exp $"); 80 #endif 81 #endif /* LIBC_SCCS and not lint */ 82 83 #include "namespace.h" 84 #include <sys/types.h> 85 86 #include <assert.h> 87 #include <stdio.h> 88 #include <stdlib.h> 89 #include <regex.h> 90 91 #ifdef __weak_alias 92 __weak_alias(regfree,_regfree) 93 #endif 94 95 #include "utils.h" 96 #include "regex2.h" 97 98 /* 99 - regfree - free everything 100 = extern void regfree(regex_t *); 101 */ 102 void 103 regfree( 104 regex_t *preg) 105 { 106 struct re_guts *g; 107 108 _DIAGASSERT(preg != NULL); 109 110 _DIAGASSERT(preg->re_magic == MAGIC1); 111 if (preg->re_magic != MAGIC1) /* oops */ 112 return; /* nice to complain, but hard */ 113 114 g = preg->re_g; 115 if (g == NULL || g->magic != MAGIC2) /* oops again */ 116 return; 117 preg->re_magic = 0; /* mark it invalid */ 118 g->magic = 0; /* mark it invalid */ 119 120 if (g->strip != NULL) 121 free(g->strip); 122 if (g->sets != NULL) 123 free(g->sets); 124 if (g->setbits != NULL) 125 free(g->setbits); 126 if (g->must != NULL) 127 free(g->must); 128 free(g); 129 } 130
