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