From 8de0fd45cde4826951842f80b6ce109988d47f4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
Date: Mon, 7 Apr 2014 12:31:28 +0200
Subject: [PATCH] t/op/crypt.t: Perform SHA-256 algorithm if default one is
 disabled
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The crypt(3) call may return NULL. This is the case of FIPS-enabled
platforms. Then "salt makes a difference" test would fail.

Signed-off-by: Petr Písař <ppisar@redhat.com>
---
 t/op/crypt.t | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/t/op/crypt.t b/t/op/crypt.t
index 27c878f..6c43992 100644
--- a/t/op/crypt.t
+++ b/t/op/crypt.t
@@ -28,19 +28,25 @@ BEGIN {
 # bets, given alternative encryption/hashing schemes like MD5,
 # C2 (or higher) security schemes, and non-UNIX platforms.
 
+# Platforms implementing FIPS mode return undef on weak crypto algorithms.
+my $alg = '';       # Use default algorithm
+if ( !defined(crypt("ab", "cd")) ) {
+    $alg = '$5$';   # Use SHA-256
+}
+
 SKIP: {
 	skip ("VOS crypt ignores salt.", 1) if ($^O eq 'vos');
-	ok(substr(crypt("ab", "cd"), 2) ne substr(crypt("ab", "ce"), 2), "salt makes a difference");
+	ok(substr(crypt("ab", $alg . "cd"), 2) ne substr(crypt("ab", $alg. "ce"), 2), "salt makes a difference");
 }
 
 $a = "a\xFF\x{100}";
 
-eval {$b = crypt($a, "cd")};
+eval {$b = crypt($a, $alg . "cd")};
 like($@, qr/Wide character in crypt/, "wide characters ungood");
 
 chop $a; # throw away the wide character
 
-eval {$b = crypt($a, "cd")};
+eval {$b = crypt($a, $alg . "cd")};
 is($@, '',                   "downgrade to eight bit characters");
-is($b, crypt("a\xFF", "cd"), "downgrade results agree");
+is($b, crypt("a\xFF", $alg . "cd"), "downgrade results agree");
 
-- 
1.9.0