OpenSSL::Test::quotify: put quotes around empty arguments

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5396)

diff --git a/util/perl/OpenSSL/Test.pm b/util/perl/OpenSSL/Test.pm
index e363a484731184825972520efdf7da9e60d7a14a..ad77896c85efbb4df8daebf5c4764046aaf76f1d 100644 (file)
--- a/util/perl/OpenSSL/Test.pm
+++ b/util/perl/OpenSSL/Test.pm
@@ -760,12 +760,13 @@ I<This must never ever be done on VMS.>
 sub quotify {
     # Unix setup (default if nothing else is mentioned)
     my $arg_formatter =
-       sub { $_ = shift; /\s|[\{\}\\\$\[\]\*\?\|\&:;<>]/ ? "'$_'" : $_ };
+       sub { $_ = shift;
+             ($_ eq '' || /\s|[\{\}\\\$\[\]\*\?\|\&:;<>]/) ? "'$_'" : $_ };
 
     if ( $^O eq "VMS") {       # VMS setup
        $arg_formatter = sub {
            $_ = shift;
-           if (/\s|["[:upper:]]/) {
+           if ($_ eq '' || /\s|["[:upper:]]/) {
                s/"/""/g;
                '"'.$_.'"';
            } else {
@@ -775,7 +776,7 @@ sub quotify {
     } elsif ( $^O eq "MSWin32") { # MSWin setup
        $arg_formatter = sub {
            $_ = shift;
-           if (/\s|["\|\&\*\;<>]/) {
+           if ($_ eq '' || /\s|["\|\&\*\;<>]/) {
                s/(["\\])/\\$1/g;
                '"'.$_.'"';
            } else {