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