fixes #166 Websocket TLS mapping

This introduces the wss:// scheme, which is available and works like
the ws:// scheme if TLS is enabled in the library.

The library modularization is refactored somewhat, to make it easier
to use.  There is now a single NNG_ENABLE_TLS that enables TLS support
under the hood.

This also adds a new option for the TLS transport, NNG_OPT_TLS_CONFIG
(and a similar one for WSS, NNG_OPT_TLS_WSS_CONFIG) that offer access
to the underlying TLS configuration object, which now has a public API
to go with it as well.

Note that it is also possible to use pure HTTPS using the *private*
API, which will be exposed in a public form soon.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/core/options.c b/src/core/options.c
index 1417d0b3..ef7420d6 100644
--- a/src/core/options.c
+++ b/src/core/options.c
@@ -187,6 +187,19 @@ nni_getopt_size(size_t u, void *val, size_t *sizep)
 }
 
 int
+nni_getopt_ptr(void *ptr, void *val, size_t *sizep)
+{
+	size_t sz = sizeof(ptr);
+
+	if (sz > *sizep) {
+		sz = *sizep;
+	}
+	*sizep = sizeof(ptr);
+	memcpy(val, &ptr, sz);
+	return (0);
+}
+
+int
 nni_setopt_buf(nni_msgq *mq, const void *val, size_t sz)
 {
 	int len;