mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/*-
|
|
* Copyright (c) 1992 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* James da Silva at the University of Maryland at College Park.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Compatibility routines that implement the old re_comp/re_exec interface in
|
|
* terms of the regcomp/regexec interface. It's possible that some programs
|
|
* rely on dark corners of re_comp/re_exec and won't work with this version,
|
|
* but most programs should be fine.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static char sccsid[] = "@(#)regex.c 5.1 (Berkeley) 3/29/92";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <stddef.h>
|
|
#include <regexp.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
static regexp *re_regexp;
|
|
static int re_goterr;
|
|
static char *re_errstr;
|
|
|
|
char *
|
|
re_comp(s)
|
|
char *s;
|
|
{
|
|
if (s == NULL || *s == '\0') {
|
|
if (re_regexp == NULL)
|
|
return "no previous regular expression";
|
|
return (NULL);
|
|
}
|
|
if (re_regexp)
|
|
free(re_regexp);
|
|
if (re_errstr)
|
|
free(re_errstr);
|
|
re_goterr = 0;
|
|
re_regexp = regcomp(s);
|
|
return (re_goterr ? re_errstr : NULL);
|
|
}
|
|
|
|
int
|
|
re_exec(s)
|
|
char *s;
|
|
{
|
|
int rc;
|
|
|
|
re_goterr = 0;
|
|
rc = regexec(re_regexp, s);
|
|
return (re_goterr ? -1 : rc);
|
|
}
|
|
|
|
void
|
|
regerror(s)
|
|
const char *s;
|
|
{
|
|
re_goterr = 1;
|
|
if (re_errstr)
|
|
free(re_errstr);
|
|
re_errstr = strdup(s);
|
|
}
|