2 * Copyright (c) 1992 The Regents of the University of California.
5 * This code is derived from software contributed to Berkeley by
6 * James da Silva at the University of Maryland at College Park.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
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.
43 #if defined(LIBC_SCCS) && !defined(lint)
44 static char sccsid[] = "@(#)regex.c 5.1 (Berkeley) 3/29/92";
45 #endif /* LIBC_SCCS and not lint */
51 static regex_t re_regexp;
53 static char re_errstr[100];
56 re_comp(const char *s)
60 if (s == NULL || *s == '\0') {
62 return __DECONST(char *,
63 "no previous regular expression");
72 rc = regcomp(&re_regexp, s, REG_EXTENDED);
78 regerror(rc, &re_regexp, re_errstr, sizeof(re_errstr));
79 re_errstr[sizeof(re_errstr) - 1] = '\0';
84 re_exec(const char *s)
90 rc = regexec(&re_regexp, s, 0, NULL, 0);
91 return (rc == 0 ? 1 : 0);