sk_new_null
((STACK_OF(type) *)sk_new_null())
#define sk_OPENSSL_STRING_new_null() ((STACK_OF(OPENSSL_STRING) *)sk_new_null())
#define sk_OPENSSL_BLOCK_new_null() ((STACK_OF(OPENSSL_BLOCK) *)sk_new_null())
#define sk_OPENSSL_PSTRING_new_null() ((STACK_OF(OPENSSL_PSTRING) *)sk_new_null())
_STACK *sk_new_null(void);