From 197ba151e70c0aef35ee713b119d49e4637c1d05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ingo=20Kl=C3=B6cker?= <dev@ingo-kloecker.de>
Date: Tue, 4 Aug 2020 16:09:05 +0200
Subject: [PATCH] cpp: Add ostream operator for subkey

* lang/cpp/src/key.cpp (Subkey): Add ostream operator.
* lang/cpp/src/key.h: Update accordingly.
--

This is helpful for debugging / showing the state of a subkey.
---
 lang/cpp/src/key.cpp | 22 ++++++++++++++++++++++
 lang/cpp/src/key.h   |  1 +
 2 files changed, 23 insertions(+)

diff --git a/lang/cpp/src/key.cpp b/lang/cpp/src/key.cpp
index c422fcc5..5d6560b1 100644
--- a/lang/cpp/src/key.cpp
+++ b/lang/cpp/src/key.cpp
@@ -1147,6 +1147,25 @@ std::ostream &operator<<(std::ostream &os, const UserID &uid)
     return os << ')';
 }
 
+std::ostream &operator<<(std::ostream &os, const Subkey &subkey)
+{
+    os << "GpgME::Subkey(";
+    if (!subkey.isNull()) {
+        os << "\n fingerprint:   " << protect(subkey.fingerprint())
+           << "\n creationTime:  " << subkey.creationTime()
+           << "\n expirationTime:" << subkey.expirationTime()
+           << "\n isRevoked:     " << subkey.isRevoked()
+           << "\n isExpired:     " << subkey.isExpired()
+           << "\n isInvalid:     " << subkey.isRevoked()
+           << "\n isDisabled:    " << subkey.isInvalid()
+           << "\n canSign:       " << subkey.canSign()
+           << "\n canEncrypt:    " << subkey.canEncrypt()
+           << "\n canCertify:    " << subkey.canCertify()
+           << "\n canAuth:       " << subkey.canAuthenticate();
+    }
+    return os << ')';
+}
+
 std::ostream &operator<<(std::ostream &os, const Key &key)
 {
     os << "GpgME::Key(";
@@ -1166,6 +1185,9 @@ std::ostream &operator<<(std::ostream &os, const Key &key)
         const std::vector<UserID> uids = key.userIDs();
         std::copy(uids.begin(), uids.end(),
                   std::ostream_iterator<UserID>(os, "\n"));
+        const std::vector<Subkey> subkeys = key.subkeys();
+        std::copy(subkeys.begin(), subkeys.end(),
+                  std::ostream_iterator<Subkey>(os, "\n"));
     }
     return os << ')';
 }
diff --git a/lang/cpp/src/key.h b/lang/cpp/src/key.h
index fc5e67ee..d3c6125a 100644
--- a/lang/cpp/src/key.h
+++ b/lang/cpp/src/key.h
@@ -516,6 +516,7 @@ private:
 };
 
 GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const UserID &uid);
+GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const Subkey &subkey);
 GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const Key &key);
 
 } // namespace GpgME