Merge commit '86cc97e55fe346502462284d2e636a2b3708163e' as 'Sources/OpenVPN3'

Sources/OpenVPN3/openvpn/buffer/bufstr.hpp

@@ -0,0 +1,110 @@
+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License Version 3
+//    as published by the Free Software Foundation.
+//
+//    This program 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 Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+// String methods on Buffer objects
+
+#ifndef OPENVPN_BUFFER_BUFSTR_H
+#define OPENVPN_BUFFER_BUFSTR_H
+
+#include <openvpn/buffer/buffer.hpp>
+
+namespace openvpn {
+  // return contents of Buffer as a std::string
+  inline std::string buf_to_string(const Buffer& buf)
+  {
+    return std::string((const char *)buf.c_data(), buf.size());
+  }
+
+  // return contents of ConstBuffer as a std::string
+  inline std::string buf_to_string(const ConstBuffer& buf)
+  {
+    return std::string((const char *)buf.c_data(), buf.size());
+  }
+
+  // write std::string to Buffer
+  inline void buf_write_string(Buffer& buf, const std::string& str)
+  {
+    buf.write((unsigned char *)str.c_str(), str.length());
+  }
+
+  // write C string to buffer
+  inline void buf_write_string(Buffer& buf, const char *str)
+  {
+    buf.write((unsigned char *)str, std::strlen(str));
+  }
+
+  // return BufferPtr from std::string
+  inline BufferPtr buf_from_string(const std::string& str)
+  {
+    const size_t len = str.length();
+    BufferPtr buf(new BufferAllocated(len, 0));
+    buf->write((unsigned char *)str.c_str(), len);
+    return buf;
+  }
+
+  // return BufferPtr from C string
+  inline BufferPtr buf_from_string(const char *str)
+  {
+    const size_t len = std::strlen(str);
+    BufferPtr buf(new BufferAllocated(len, 0));
+    buf->write((unsigned char *)str, len);
+    return buf;
+  }
+
+  // return BufferAllocated from std::string
+  inline BufferAllocated buf_alloc_from_string(const std::string& str)
+  {
+    const size_t len = str.length();
+    BufferAllocated buf(len, 0);
+    buf.write((unsigned char *)str.c_str(), len);
+    return buf;
+  }
+
+  // return BufferAllocated from C string
+  inline BufferAllocated buf_alloc_from_string(const char *str)
+  {
+    const size_t len = std::strlen(str);
+    BufferAllocated buf(len, 0);
+    buf.write((unsigned char *)str, len);
+    return buf;
+  }
+
+  // append str to buf
+  inline void buf_append_string(Buffer& buf, const std::string& str)
+  {
+    buf.write((unsigned char *)str.c_str(), str.length());
+  }
+
+  // append str to buf
+  inline void buf_append_string(Buffer& buf, const char *str)
+  {
+    buf.write((unsigned char *)str, std::strlen(str));
+  }
+
+  // Note: ConstBuffer deep links to str, so returned ConstBuffer
+  // is only defined while str is in scope.
+  inline ConstBuffer const_buf_from_string(const std::string& str)
+  {
+    return ConstBuffer((const unsigned char *)str.c_str(), str.size(), true);
+  }
+}
+
+#endif