| Colin Cross | 4fa7b10 | 2010-01-12 18:59:25 -0800 | [diff] [blame] | 1 | /* $OpenBSD: regfree.c,v 1.7 2005/08/05 13:03:00 espie 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. |
| 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 | #include <sys/types.h> |
| 38 | #include <stdio.h> |
| 39 | #include <stdlib.h> |
| 40 | #include <regex.h> |
| 41 | |
| 42 | #include "utils.h" |
| 43 | #include "regex2.h" |
| 44 | |
| 45 | /* |
| 46 | - regfree - free everything |
| 47 | */ |
| 48 | void |
| 49 | regfree(regex_t *preg) |
| 50 | { |
| 51 | struct re_guts *g; |
| 52 | |
| 53 | if (preg->re_magic != MAGIC1) /* oops */ |
| 54 | return; /* nice to complain, but hard */ |
| 55 | |
| 56 | g = preg->re_g; |
| 57 | if (g == NULL || g->magic != MAGIC2) /* oops again */ |
| 58 | return; |
| 59 | preg->re_magic = 0; /* mark it invalid */ |
| 60 | g->magic = 0; /* mark it invalid */ |
| 61 | |
| 62 | if (g->strip != NULL) |
| 63 | free((char *)g->strip); |
| 64 | if (g->sets != NULL) |
| 65 | free((char *)g->sets); |
| 66 | if (g->setbits != NULL) |
| 67 | free((char *)g->setbits); |
| 68 | if (g->must != NULL) |
| 69 | free(g->must); |
| 70 | free((char *)g); |
| 71 | } |