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frr/bgpd/bgp_regex.h

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*: auto-convert to SPDX License IDs Done with a combination of regex'ing and banging my head against a wall. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2023-02-08 13:17:09 +01:00
// SPDX-License-Identifier: GPL-2.0-or-later
Initial revision
2002-12-13 21:15:29 +01:00
/* AS regular expression routine
*: make consistent & update GPLv2 file headers The FSF's address changed, and we had a mixture of comment styles for the GPL file header. (The style with * at the beginning won out with 580 to 141 in existing files.) Note: I've intentionally left intact other "variations" of the copyright header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2017-05-13 10:25:29 +02:00
* Copyright (C) 1999 Kunihiro Ishiguro
*/
Initial revision
2002-12-13 21:15:29 +01:00
lib: Add PCRE2 support 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>
2022-10-31 21:23:51 +01:00
#ifndef _FRR_BGP_REGEX_H
#define _FRR_BGP_REGEX_H
2005-05-23 Paul Jakma <paul@dishone.st> * bgp_fsm.h: Add extern qualifier to exported functions * bgp_nexthop.c: add static to nexthop specific globals * *.h: Add guard defines
2005-05-23 16:19:54 +02:00
Initial revision
2002-12-13 21:15:29 +01:00
#include <zebra.h>
lib: Add PCRE2 support 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>
2022-10-31 21:23:51 +01:00
#ifdef HAVE_LIBPCRE2_POSIX
#ifndef _FRR_PCRE2_POSIX
#define _FRR_PCRE2_POSIX
#include <pcre2posix.h>
#endif /* _FRR_PCRE2_POSIX */
#elif defined(HAVE_LIBPCREPOSIX)
[configure] add configure support for PCRE Posix library Debian tried unsuccessfully to build with libpcreposix. This adds proper support to autoconf/configure.ac for it. Based on the patch by C.J. Adams-Collier in bug #483. bgpd/bgp_{regex,routemap}.h: Pull in PCRE POSIX header if available.
2009-01-12 22:06:12 +01:00
#include <pcreposix.h>
Initial revision
2002-12-13 21:15:29 +01:00
#else
build: massively remove needless checks Since we have autoconf results from a wide swath of target platforms, we can go remove checks that have the same result on all systems. This also removes several "fallback" implementations of functions that, at some point in the history, weren't available on all target platforms. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2016-11-15 05:37:14 +01:00
#include <regex.h>
lib: Add PCRE2 support 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>
2022-10-31 21:23:51 +01:00
#endif /* HAVE_LIBPCRE2_POSIX */
Initial revision
2002-12-13 21:15:29 +01:00
2005-06-28 Paul Jakma <paul.jakma@sun.com> * (global) The great bgpd extern and static'ification. * bgp_routemap.c: remove unused ROUTE_MATCH_ASPATH_OLD code (route_set_metric_compile) fix u_int32_t to ULONG_MAX comparison warnings. * bgp_route.h: (bgp_process, bgp_withdraw, bgp_update) export these used by various files which had their own private declarations, in the case of mplsvpn - incorrect.
2005-06-28 14:44:16 +02:00
extern void bgp_regex_free(regex_t *regex);
extern regex_t *bgp_regcomp(const char *str);
extern int bgp_regexec(regex_t *regex, struct aspath *aspath);
2005-05-23 Paul Jakma <paul@dishone.st> * bgp_fsm.h: Add extern qualifier to exported functions * bgp_nexthop.c: add static to nexthop specific globals * *.h: Add guard defines
2005-05-23 16:19:54 +02:00
lib: Add PCRE2 support 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>
2022-10-31 21:23:51 +01:00
#endif /* _FRR_BGP_REGEX_H */
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