1 /* $NetBSD: regfree.c,v 1.5 2014/01/26 21:47:00 christos Exp $ */ 2 /*- 3 * Copyright (c) 1992, 1993, 1994 Henry Spencer. 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 of the University of Toronto. 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)regfree.c 8.2 (Berkeley) 3/16/94 39 */ 40 41 #include <sys/cdefs.h> 42 #if 0 43 #if defined(LIBC_SCCS) && !defined(lint) 44 static char sccsid[] = "@(#)regfree.c 8.2 (Berkeley) 3/16/94"; 45 #endif /* LIBC_SCCS and not lint */ 46 #else 47 __RCSID("$NetBSD: regfree.c,v 1.5 2014/01/26 21:47:00 christos Exp $"); 48 #endif 49 50 #include <sys/types.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <regex.h> 54 55 #include "utils.h" 56 #include "regex2.h" 57 58 /* 59 - regfree - free everything 60 = extern void regfree(regex_t *); 61 */ 62 void 63 regfree(regex_t *preg) 64 { 65 struct re_guts *g; 66 67 if (preg->re_magic != MAGIC1) /* oops */ 68 return; /* nice to complain, but hard */ 69 70 g = preg->re_g; 71 if (g == NULL || g->magic != MAGIC2) /* oops again */ 72 return; 73 preg->re_magic = 0; /* mark it invalid */ 74 g->magic = 0; /* mark it invalid */ 75 76 if (g->strip != NULL) 77 free((char *)g->strip); 78 if (g->stripdata != NULL) 79 free((char *)g->stripdata); 80 if (g->sets != NULL) 81 free((char *)g->sets); 82 if (g->setbits != NULL) 83 free((char *)g->setbits); 84 if (g->must != NULL) 85 free(g->must); 86 free((char *)g); 87 } 88