diff options
Diffstat (limited to 'src/lib/util/io/pktinfo_utilities.h')
-rw-r--r-- | src/lib/util/io/pktinfo_utilities.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/lib/util/io/pktinfo_utilities.h b/src/lib/util/io/pktinfo_utilities.h new file mode 100644 index 0000000..2625008 --- /dev/null +++ b/src/lib/util/io/pktinfo_utilities.h @@ -0,0 +1,43 @@ +// Copyright (C) 2012-2015 Internet Systems Consortium, Inc. ("ISC") +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#ifndef PKTINFO_UTIL_H +#define PKTINFO_UTIL_H 1 + +#include <sys/socket.h> +#include <netinet/in.h> + +// These definitions in this file are for the convenience of internal +// implementation and test code, and are not intended to be used publicly. +// The namespace "internal" indicates the intent. + +namespace isc { +namespace util { +namespace io { +namespace internal { + +// Lower level C-APIs require conversion between char* pointers +// (like structures returned by CMSG_DATA macro) and in6_pktinfo, +// which is not friendly with C++. The following templates +// are a shortcut of common workaround conversion in such cases. +inline struct in6_pktinfo* +convertPktInfo6(char* pktinfo) { + return (static_cast<struct in6_pktinfo*>(static_cast<void*>(pktinfo))); +} + +inline struct in6_pktinfo* +convertPktInfo6(unsigned char* pktinfo) { + return (static_cast<struct in6_pktinfo*>(static_cast<void*>(pktinfo))); +} + +/// @todo: Do we need const versions as well? + +} +} +} +} + +#endif // PKTINFO_UTIL_H |