From c0384ddfb4806697973cafce01f51ff8a775d67f Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Sun, 13 Apr 2014 13:21:14 -0700 Subject: [PATCH] tests: detect an infloop-inducing bug in grep -P (pcre-8.35) * tests/pcre-infloop: New test. * tests/Makefile.am (TESTS): Add it. --- tests/Makefile.am | 1 + tests/pcre-infloop | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) create mode 100755 tests/pcre-infloop diff --git a/tests/Makefile.am b/tests/Makefile.am index 49d6cba..cc79903 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -83,6 +83,7 @@ TESTS = \ options \ pcre \ pcre-abort \ + pcre-infloop \ pcre-invalid-utf8-input \ pcre-utf8 \ pcre-w \ diff --git a/tests/pcre-infloop b/tests/pcre-infloop new file mode 100755 index 0000000..57b67ae --- /dev/null +++ b/tests/pcre-infloop @@ -0,0 +1,33 @@ +#!/bin/sh +# With some versions of libpcre, apparently including 8.35, +# the following would trigger an infinite loop in its match function. + +# Copyright 2014 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +require_pcre_ +require_timeout_ +require_en_utf8_locale_ +require_compiled_in_MB_support + +printf 'a\201b\r' > in || framework_failure_ + +fail=0 + +LC_ALL=en_US.utf8 timeout 3 grep -P 'a.?..b' in +test $? = 1 || fail_ "libpcre's match function appears to infloop" + +Exit $fail -- 1.9.2.459.g68773ac