1 files changed, 26 insertions, 0 deletions
diff --git a/sample/openssl/cert2text.rb b/sample/openssl/cert2text.rb
new file mode 100644
index 0000000000..fe14e51d3a
--- /dev/null
+++ b/sample/openssl/cert2text.rb
@@ -0,0 +1,26 @@
+#!/usr/bin/env ruby
+
+require 'openssl'
+
+def cert2text(cert_str)
+  [
+    OpenSSL::X509::Certificate,
+    OpenSSL::X509::CRL,
+    OpenSSL::X509::Request,
+  ].each do |klass|
+    begin
+      puts klass.new(cert_str).to_text
+      return
+    rescue
+    end
+  end
+  raise ArgumentError.new('Unknown format.')
+end
+
+if ARGV.empty?
+  cert2text(STDIN.read)
+else
+  ARGV.each do |file|
+    cert2text(File.read(file))
+  end
+end