grep branch, master, updated. v2.18-65-g4965c79

[Jim Meyering]

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http://git.savannah.gnu.org/cgit/grep.git/commit/?id=4965c7942ee355587d47624b226725184fea73c3


commit 4965c7942ee355587d47624b226725184fea73c3
Author: Jim Meyering <address@hidden>
Date:   Sun Apr 13 13:21:14 2014 -0700

    tests: detect an infloop-inducing bug in grep -P (pcre-8.35)
    
    * tests/pcre-infloop: New test.
    * tests/Makefile.am (TESTS): Add it.

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 <http://www.gnu.org/licenses/>.
+
+. "${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

-----------------------------------------------------------------------

Summary of changes:
 tests/Makefile.am                    |    1 +
 tests/{dfa-coverage => pcre-infloop} |   17 +++++++++--------
 2 files changed, 10 insertions(+), 8 deletions(-)
 copy tests/{dfa-coverage => pcre-infloop} (67%)


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