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-rw-r--r--community/perl-xml-easy/syntax_main-test.patch54
1 files changed, 54 insertions, 0 deletions
diff --git a/community/perl-xml-easy/syntax_main-test.patch b/community/perl-xml-easy/syntax_main-test.patch
new file mode 100644
index 0000000000..56a64ab397
--- /dev/null
+++ b/community/perl-xml-easy/syntax_main-test.patch
@@ -0,0 +1,54 @@
+from: https://rt.cpan.org/Public/Bug/Display.html?id=127416
+
+--- a/t/syntax_main.t- 2019-04-24 11:47:08.365496801 +0100
++++ b/t/syntax_main.t 2019-04-24 12:01:50.459442769 +0100
+@@ -35,16 +35,34 @@
+
+ # This code checks whether the regexp iteration limit bug (#60034) is
+ # present. The regexp match expression checks for getting the wrong
+-# result with a long input, and suffices to diagnose the bug. However,
+-# running that test on a pre-5.10 perl causes the stack to grow large,
++# result with a long input, and suffices to diagnose the bug.
++# for a pattern like /X*/, where X is sub-pattern that can match variable
++# length string, e.g. (ab?), it is currently known that:
++#
++# on < 5.10.0, the old recursive engine will crash on too long a match;
++# on < 5.29.4, /X*/ is misinterpreted as /X{0,32767}/
++# on 5.29.4+, /X*/ is misinterpreted as /X{0,65535}/
++#
++# Running that test on a pre-5.10 perl causes the stack to grow large,
+ # and if there's a limited stack size then this may overflow it and
+ # cause perl to crash. All pre-5.10 perls have the iteration limit
+ # bug, so there's no need to run the proper test on those verions.
+ # 5.10 fixed the stack issue, so it's safe to run the proper test there.
+-my $have_iterlimit_bug = "$]" < 5.010 || do {
+- local $SIG{__WARN__} = sub { };
+- ("a"x40000) !~ /\A(?:X?[a-z])*\z/;
+-};
++
++my $iterlimit; # if defined, sets an upper limit for iterations
++
++if ($] < 5.010) {
++ $iterlimit = 0;
++}
++else {
++ local $SIG{__WARN__} = sub { };
++ for my $i (32767, 65535) {
++ if (("a"x($i+1)) !~ /\A(?:X?[a-z])*\z/) {
++ $iterlimit = $i;
++ last;
++ }
++ }
++}
+
+ my $data_in = IO::File->new("t/read.data", "r") or die;
+ my $line = $data_in->getline;
+@@ -75,7 +93,7 @@
+ }
+ SKIP: {
+ skip "perl bug affects long inputs", 2
+- if $have_iterlimit_bug && length($input) >= 32766;
++ if defined $iterlimit && length($input) >= $iterlimit;
+ is upgraded($input) =~ $recogniser{$prod}, !$syntax_error;
+ is downgraded($input) =~ $recogniser{$prod}, !$syntax_error;
+ }