+/*
+ * Multiple precision stuff
+ *
+ * May use OpenSSL's BIGNUM if built with TLS,
+ * or GNU's multiple precision library. But if
+ * long long is available, that's big enough
+ * and much more efficient.
+ *
+ * If none is available, unsigned long data is used.
+ */
+
+#ifdef USE_MP_BIGNUM
+/*
+ * Use OpenSSL's BIGNUM
+ */
+#include <openssl/crypto.h>
+#include <openssl/bn.h>
+
+typedef BIGNUM* ldap_pvt_mp_t;
+#define LDAP_PVT_MP_INIT (NULL)
+
+#define ldap_pvt_mp_init(mp) \
+ do { (mp) = BN_new(); } while (0)
+
+/* FIXME: we rely on mpr being initialized */
+#define ldap_pvt_mp_init_set(mpr,mpv) \
+ do { ldap_pvt_mp_init((mpr)); BN_add((mpr), (mpr), (mpv)); } while (0)
+
+#define ldap_pvt_mp_add(mpr,mpv) \
+ BN_add((mpr), (mpr), (mpv))
+
+#define ldap_pvt_mp_add_ulong(mp,v) \
+ BN_add_word((mp), (v))
+
+#define ldap_pvt_mp_clear(mp) \
+ do { BN_free((mp)); (mp) = 0; } while (0)
+
+#elif defined(USE_MP_GMP)
+/*
+ * Use GNU's multiple precision library
+ */
+#include <gmp.h>
+
+typedef mpz_t ldap_pvt_mp_t;
+#define LDAP_PVT_MP_INIT { 0 }
+
+#define ldap_pvt_mp_init(mp) \
+ mpz_init((mp))
+
+#define ldap_pvt_mp_init_set(mpr,mpv) \
+ mpz_init_set((mpr), (mpv))
+
+#define ldap_pvt_mp_add(mpr,mpv) \
+ mpz_add((mpr), (mpr), (mpv))
+
+#define ldap_pvt_mp_add_ulong(mp,v) \
+ mpz_add_ui((mp), (mp), (v))
+
+#define ldap_pvt_mp_clear(mp) \
+ mpz_clear((mp))
+
+#else
+/*
+ * Use unsigned long long
+ */