Function s2n_quic::provider::tls::default::ffi::s2n_client_hello_get_compression_methods

pub unsafe extern "C" fn s2n_client_hello_get_compression_methods(
    ch: *mut s2n_client_hello,
    list: *mut u8,
    list_length: u32,
    out_length: *mut u32
) -> i32

Retrieves the list of compression methods sent in the Client Hello.

Use s2n_client_hello_get_compression_methods_length() to retrieve how much memory should be allocated for the buffer in advance.

@note Compression methods were removed in TLS1.3 and therefore the only valid value in this list is the “null” compression method when TLS1.3 is negotiated.

@note s2n-tls has never supported compression methods in any TLS version and therefore a compression method will never be negotiated or used.

@param ch A pointer to the Client Hello @param list A pointer to some memory that s2n will write the compression methods to. This memory MUST be the size of list_length @param list_length The size of list. @param out_length An out pointer. s2n will set its value to the size of the compression methods list in bytes. @returns S2N_SUCCESS on success. S2N_FAILURE on failure