iRule CMD usage clarification - SSL::SNI

​Here it goes...

when CLIENTSSL_HANDSHAKE {
    log local0.info "CLIENTSSL_HANDSHAKE"
 
    set ext_exists [SSL::extensions exists -type 0]
    log local0.info "SSL extension type 0 exists: $ext_exists"
    if {$ext_exists} {
        set scan [binary scan [SSL::extensions -type 0] S1S1A4A* ext_type ext_len disc ext]
        
        #set sni_hostname [binary format H* $ext]
		log local0. "SSL server_name $ext"
    }
}