2 files changed, 13 insertions, 1 deletions
diff --git a/utils/mir_signal.cpp b/utils/mir_signal.cpp
index afca4f4188..d4e03e6803 100644
--- a/utils/mir_signal.cpp
+++ b/utils/mir_signal.cpp
@@ -37,4 +37,12 @@ SignalBuffer::~SignalBuffer()
 CMStringA SignalBuffer::toBase64() const
 {
 	return ptrA(mir_base64_encode(m_buf->data, m_buf->len)).get();
-}
-\ No newline at end of file
+}
+
+void SignalBuffer::operator=(signal_buffer *buf)
+{
+	if (m_buf)
+		signal_buffer_free(m_buf);
+
+	m_buf = buf;
+}
diff --git a/utils/mir_signal.h b/utils/mir_signal.h
index ef443374ff..313714edac 100644
--- a/utils/mir_signal.h
+++ b/utils/mir_signal.h
@@ -40,6 +40,7 @@ class SignalBuffer
 	signal_buffer *m_buf;
 
 public:
+	SignalBuffer() : m_buf(nullptr) {}
 	SignalBuffer(const class MBinBuffer &buf);
 	SignalBuffer(const ec_public_key *key);
 	SignalBuffer(const ec_private_key *key);
@@ -47,6 +48,9 @@ public:
 	SignalBuffer(const session_signed_pre_key *pre_key);
 	~SignalBuffer();
 
+	void operator=(signal_buffer *buf);
+
+	__forceinline operator bool() const { return m_buf != nullptr; }
 	__forceinline uint8_t* data() const { return m_buf->data; }
 	__forceinline unsigned len() const { return unsigned(m_buf->len); }