| 1 | /*- |
| 2 | * Copyright (c) 1992 Henry Spencer. |
| 3 | * Copyright (c) 1992, 1993 |
| 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 of the University of Toronto. |
| 8 | * |
| 9 | * %sccs.include.redist.c% |
| 10 | * |
| 11 | * @(#)regfree.c 8.1 (Berkeley) %G% |
| 12 | */ |
| 13 | |
| 14 | #if defined(LIBC_SCCS) && !defined(lint) |
| 15 | static char sccsid[] = "@(#)regfree.c 8.1 (Berkeley) %G%"; |
| 16 | #endif /* LIBC_SCCS and not lint */ |
| 17 | |
| 18 | #include <sys/types.h> |
| 19 | #include <stdio.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <regex.h> |
| 22 | |
| 23 | #include "utils.h" |
| 24 | #include "regex2.h" |
| 25 | |
| 26 | /* |
| 27 | - regfree - free everything |
| 28 | = extern void regfree(regex_t *preg); |
| 29 | */ |
| 30 | void |
| 31 | regfree(preg) |
| 32 | regex_t *preg; |
| 33 | { |
| 34 | register struct re_guts *g; |
| 35 | |
| 36 | if (preg->re_magic != MAGIC1) /* oops */ |
| 37 | return; /* nice to complain, but hard */ |
| 38 | |
| 39 | g = preg->re_g; |
| 40 | if (g == NULL || g->magic != MAGIC2) /* oops again */ |
| 41 | return; |
| 42 | preg->re_magic = 0; /* mark it invalid */ |
| 43 | g->magic = 0; /* mark it invalid */ |
| 44 | |
| 45 | if (g->strip != NULL) |
| 46 | free((char *)g->strip); |
| 47 | if (g->sets != NULL) |
| 48 | free((char *)g->sets); |
| 49 | if (g->setbits != NULL) |
| 50 | free((char *)g->setbits); |
| 51 | if (g->must != NULL) |
| 52 | free(g->must); |
| 53 | free((char *)g); |
| 54 | } |