SSL_CTX_sessions - access internal session cache
struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx);
The sessions in the internal session cache are kept in an lhash(3) type database. It is possible to directly access this database e.g. for searching. In parallel, the sessions form a linked list which is maintained separately from the lhash(3) operations, so that the database must not be modified directly but by using the SSL_CTX_add_session(3) family of functions.