diff options
Diffstat (limited to 'openssl/src')
| -rw-r--r-- | openssl/src/ssl/mod.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/openssl/src/ssl/mod.rs b/openssl/src/ssl/mod.rs index e06d613b..fb5c2440 100644 --- a/openssl/src/ssl/mod.rs +++ b/openssl/src/ssl/mod.rs @@ -556,6 +556,28 @@ impl Ssl { } } + /// Returns the protocol selected by performing Next Protocol Negotiation, if any. + /// + /// The protocol's name is returned is an opaque sequence of bytes. It is up to the client + /// to interpret it. + /// + /// This method needs the `npn` feature. + #[cfg(feature = "npn")] + pub fn get_selected_npn_protocol(&self) -> Option<&[u8]> { + unsafe { + let mut data: *const c_uchar = ptr::null(); + let mut len: c_uint = 0; + // Get the negotiated protocol from the SSL instance. + // `data` will point at a `c_uchar` array; `len` will contain the length of this array. + ffi::SSL_get0_next_proto_negotiated(*self.ssl, &mut data, &mut len); + + if data.is_null() { + None + } else { + Some(slice::from_raw_parts(data, len as usize)) + } + } + } } #[derive(FromPrimitive, Debug)] @@ -709,6 +731,17 @@ impl<S: Read+Write> SslStream<S> { Some(s) } + + /// Returns the protocol selected by performing Next Protocol Negotiation, if any. + /// + /// The protocol's name is returned is an opaque sequence of bytes. It is up to the client + /// to interpret it. + /// + /// This method needs the `npn` feature. + #[cfg(feature = "npn")] + pub fn get_selected_npn_protocol(&self) -> Option<&[u8]> { + self.ssl.get_selected_npn_protocol() + } } impl<S: Read+Write> Read for SslStream<S> { |