1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992, 1993, 1994 Henry Spencer. 5 * Copyright (c) 1992, 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Henry Spencer. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/types.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <limits.h> 40 #include <regex.h> 41 #include <wchar.h> 42 #include <wctype.h> 43 44 #include "utils.h" 45 #include "regex2.h" 46 47 /* 48 - regfree - free everything 49 = extern void regfree(regex_t *); 50 */ 51 void 52 regfree(regex_t *preg) 53 { 54 struct re_guts *g; 55 unsigned int i; 56 57 if (preg->re_magic != MAGIC1) /* oops */ 58 return; /* nice to complain, but hard */ 59 60 g = preg->re_g; 61 if (g == NULL || g->magic != MAGIC2) /* oops again */ 62 return; 63 preg->re_magic = 0; /* mark it invalid */ 64 g->magic = 0; /* mark it invalid */ 65 66 if (g->strip != NULL) 67 free((char *)g->strip); 68 if (g->sets != NULL) { 69 for (i = 0; i < g->ncsets; i++) { 70 free(g->sets[i].ranges); 71 free(g->sets[i].wides); 72 free(g->sets[i].types); 73 } 74 free((char *)g->sets); 75 } 76 if (g->must != NULL) 77 free(g->must); 78 if (g->charjump != NULL) 79 free(&g->charjump[CHAR_MIN]); 80 if (g->matchjump != NULL) 81 free(g->matchjump); 82 free((char *)g); 83 } 84