6a9ebf88eb
This addresses a number of issues with building Cyclone DDS including DDS Security while using OpenSSL 1.0.2. Compatibility with 1.0.2 is a courtesy towards those who are unable to move to 1.1.x or later because of other libraries. * On Windows, one must include Winsock2.h prior to including the OpenSSL header files, or it'll pull in incompatible definitions from Winsock.h and that breaks some of the files. * OpenSSL 1.0.2 requires initializing the library (or more particular, loading all the required algorithms) but this is no longer needed in OpenSSL 1.1.x. It ends up being needed in a few places and having tons of essentially dead initialization code lying around is unpleasant. Hence this has been consolidated in a single function and protected with ddsrt_once(). * One ought to undo the above initialization on 1.0.2g and older, but it is impossible to know whether that can safely be done from a library. This is also the reason OpenSSL deprecated all the initialization and cleanup interfaces. So if one insists on trying it with such an old version, let there be some leaks. * Thread state cleanup is sort-of required prior 1.1.0, but that suffers from the same problems; we'd have to do per-thread cleanup code for OpenSSL for any thread that could call into it (which is pretty much any thread). So once again, people should just use 1.1.0 or newer. * There are some interfaces added in 1.1.0 that we use, but a few small workarounds those can be made to work on 1.0.2 as well. These also were replicated in a number of places and consolidated by this commit. Signed-off-by: Erik Boasson <eb@ilities.com> |
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| .. | ||
| core | ||
| ddsrt | ||
| idlc | ||
| mpt | ||
| security | ||
| tools | ||
| CMakeLists.txt | ||
| features.h.in | ||