Method write

crates/stdlib/src/openssl.rs:2380–2393

(&mut self, buf: &[u8])

    impl Write for BioStream {
        fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
            // Write to outgoing MemoryBIO
            unsafe {
                let nbytes = sys::BIO_write(
                    self.outbio.bio,
                    buf.as_ptr() as *const _,
                    buf.len().min(i32::MAX as usize) as i32,
                );
                if nbytes < 0 {
                    return Err(std::io::Error::other("BIO write failed"));
                }
                Ok(nbytes as usize)
            }
        }

        fn flush(&mut self) -> std::io::Result<()> {
            // MemoryBIO doesn't need flushing