libssh2_knownhost_init man page
libssh2_knownhost_init — init a collection of known hosts
LIBSSH2_KNOWNHOSTS *libssh2_knownhost_init(LIBSSH2_SESSION *session);
Init a collection of known hosts for this session. Returns the handle to an internal representation of a known host collection.
Call libssh2_knownhost_free(3) to free the collection again after you're doing using it.
Returns a handle pointer or NULL if something went wrong. The returned handle is used as input to all other known host related functions libssh2 provides.
Added in libssh2 1.2
libssh2_knownhost_free(3) libssh2_knownhost_add(3) libssh2_knownhost_check(3)
libssh2_knownhost_add(3), libssh2_knownhost_addc(3), libssh2_knownhost_check(3), libssh2_knownhost_checkp(3), libssh2_knownhost_del(3), libssh2_knownhost_free(3), libssh2_knownhost_readfile(3).