1 files changed, 40 insertions, 0 deletions
diff --git a/butl/sendmail.cxx b/butl/sendmail.cxx
new file mode 100644
index 0000000..103bab5
--- /dev/null
+++ b/butl/sendmail.cxx
@@ -0,0 +1,40 @@
+// file      : butl/sendmail.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <butl/sendmail>
+
+using namespace std;
+
+namespace butl
+{
+  void sendmail::
+  headers (const std::string& from,
+           const std::string& subj,
+           const recipients_type& to,
+           const recipients_type& cc,
+           const recipients_type& bcc)
+  {
+    if (!from.empty ())
+      out << "From: " << from << endl;
+
+    auto rcp =[this] (const char* h, const recipients_type& rs)
+    {
+      if (!rs.empty ())
+      {
+        bool f (true);
+        out << h << ": ";
+        for (const string& r: rs)
+          out << (f ? (f = false, "") : ", ") << r;
+        out << endl;
+      }
+    };
+
+    rcp ("To",  to);
+    rcp ("Cc",  cc);
+    rcp ("Bcc", bcc);
+
+    out << "Subject: " << subj << endl
+        << endl; // Header/body separator.
+  }
+}