1/*- 2 * Copyright (c) 1992 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * James da Silva at the University of Maryland at College Park. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h>
| 1/*- 2 * Copyright (c) 1992 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * James da Silva at the University of Maryland at College Park. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h>
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34__FBSDID("$FreeBSD: head/lib/libcompat/4.3/regex.c 194793 2009-06-23 23:20:09Z delphij $");
| 34__FBSDID("$FreeBSD: head/lib/libcompat/4.3/re_comp.c 205146 2010-03-14 10:18:58Z ed $");
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35 36/* 37 * Compatibility routines that implement the old re_comp/re_exec interface in 38 * terms of the regcomp/regexec interface. It's possible that some programs 39 * rely on dark corners of re_comp/re_exec and won't work with this version, 40 * but most programs should be fine. 41 */ 42 43#if defined(LIBC_SCCS) && !defined(lint) 44static char sccsid[] = "@(#)regex.c 5.1 (Berkeley) 3/29/92"; 45#endif /* LIBC_SCCS and not lint */ 46
| 35 36/* 37 * Compatibility routines that implement the old re_comp/re_exec interface in 38 * terms of the regcomp/regexec interface. It's possible that some programs 39 * rely on dark corners of re_comp/re_exec and won't work with this version, 40 * but most programs should be fine. 41 */ 42 43#if defined(LIBC_SCCS) && !defined(lint) 44static char sccsid[] = "@(#)regex.c 5.1 (Berkeley) 3/29/92"; 45#endif /* LIBC_SCCS and not lint */ 46
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47#include <sys/types.h>
| 47#include <regex.h>
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48#include <stddef.h>
| 48#include <stddef.h>
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49#include <regexp.h> 50#include <string.h> 51#include <stdlib.h> 52#include <string.h>
| 49#include <unistd.h>
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53
| 50
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54static regexp *re_regexp; 55static int re_goterr; 56static char *re_errstr;
| 51static regex_t re_regexp; 52static int re_gotexp; 53static char re_errstr[100];
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57 58char *
| 54 55char *
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59re_comp(char *s)
| 56re_comp(const char *s)
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60{
| 57{
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| 58 int rc; 59
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61 if (s == NULL || *s == '\0') {
| 60 if (s == NULL || *s == '\0') {
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62 if (re_regexp == NULL) 63 return "no previous regular expression";
| 61 if (!re_gotexp) 62 return __DECONST(char *, 63 "no previous regular expression");
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64 return (NULL); 65 }
| 64 return (NULL); 65 }
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66 if (re_regexp) 67 free(re_regexp); 68 if (re_errstr) 69 free(re_errstr); 70 re_goterr = 0; 71 re_regexp = regcomp(s); 72 return (re_goterr ? re_errstr : NULL);
| 66 67 if (re_gotexp) { 68 regfree(&re_regexp); 69 re_gotexp = 0; 70 } 71 72 rc = regcomp(&re_regexp, s, REG_EXTENDED); 73 if (rc == 0) { 74 re_gotexp = 1; 75 return (NULL); 76 } 77 78 regerror(rc, &re_regexp, re_errstr, sizeof(re_errstr)); 79 re_errstr[sizeof(re_errstr) - 1] = '\0'; 80 return (re_errstr);
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73} 74 75int
| 81} 82 83int
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76re_exec(char *s)
| 84re_exec(const char *s)
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77{ 78 int rc; 79
| 85{ 86 int rc; 87
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80 re_goterr = 0; 81 rc = regexec(re_regexp, s); 82 return (re_goterr ? -1 : rc);
| 88 if (!re_gotexp) 89 return (-1); 90 rc = regexec(&re_regexp, s, 0, NULL, 0); 91 return (rc == 0 ? 1 : 0);
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83}
| 92}
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84 85void 86regerror(const char *s) 87{ 88 re_goterr = 1; 89 if (re_errstr) 90 free(re_errstr); 91 re_errstr = strdup(s); 92}
| |
| |