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061f5d1cb4
Some results: ``` ==== PCRE ==== % ./a.out "^65001" "65001" comparing: ^65001 / 65001 ret status: 0 [14:31] donatas-pc donatas /home/donatas % ./a.out "^65001_" "65001" comparing: ^65001_ / 65001 ret status: 0 ===== PCRE2 ===== % ./a.out "^65001" "65001" comparing: ^65001 / 65001 ret status: 0 [14:30] donatas-pc donatas /home/donatas % ./a.out "^65001_" "65001" comparing: ^65001_ / 65001 ret status: 1 ``` Seems that if using PCRE2, we need to escape outer `()` chars and `|`. Sounds like a bug. But this is only with some older PCRE2 versions. With >= 10.36, I wasn't able to reproduce this, everything is fine and working as expected. Adding _FRR_PCRE2_POSIX definition because pcre2posix.h does not have include's guard. Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* AS regular expression routine
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* Copyright (C) 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _FRR_BGP_REGEX_H
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#define _FRR_BGP_REGEX_H
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#include <zebra.h>
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#ifdef HAVE_LIBPCRE2_POSIX
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#ifndef _FRR_PCRE2_POSIX
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#define _FRR_PCRE2_POSIX
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#include <pcre2posix.h>
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#endif /* _FRR_PCRE2_POSIX */
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#elif defined(HAVE_LIBPCREPOSIX)
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#include <pcreposix.h>
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#else
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#include <regex.h>
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#endif /* HAVE_LIBPCRE2_POSIX */
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extern void bgp_regex_free(regex_t *regex);
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extern regex_t *bgp_regcomp(const char *str);
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extern int bgp_regexec(regex_t *regex, struct aspath *aspath);
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#endif /* _FRR_BGP_REGEX_H */
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