1 files changed, 58 insertions, 0 deletions
diff --git a/lang/cpp/src/exception.cpp b/lang/cpp/src/exception.cpp
new file mode 100644
index 00000000..c687024b
--- /dev/null
+++ b/lang/cpp/src/exception.cpp
@@ -0,0 +1,58 @@
+/*
+  exception.cpp - exception wrapping a gpgme error
+  Copyright (C) 2007 Klarälvdalens Datakonsult AB
+
+  This file is part of GPGME++.
+
+  GPGME++ is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  GPGME++ is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public License
+  along with GPGME++; see the file COPYING.LIB.  If not, write to the
+  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+*/
+
+// -*- c++ -*-
+#include "exception.h"
+
+#include <gpgme.h>
+
+#include <sstream>
+
+using namespace GpgME;
+using namespace std; // only safe b/c it's so small a file!
+
+Exception::~Exception() throw() {}
+
+// static
+string Exception::make_message(const Error &err, const string &msg)
+{
+    return make_message(err, msg, NoOptions);
+}
+
+// static
+string Exception::make_message(const Error &err, const string &msg, Options opt)
+{
+    if (opt & MessageOnly) {
+        return msg;
+    }
+    char error_string[128];
+    error_string[0] = '\0';
+    gpgme_strerror_r(err.encodedError(), error_string, sizeof error_string);
+    error_string[sizeof error_string - 1] = '\0';
+    stringstream ss;
+    ss << gpgme_strsource(err.encodedError()) << ": ";
+    if (!msg.empty()) {
+        ss << msg << ": ";
+    }
+    ss << error_string << " (" << static_cast<unsigned long>(err.encodedError()) << ')';
+    return ss.str();
+}