fix bit counting mess

[oweals/gnunet.git] / src / include / gnunet_crypto_lib.h

diff --git a/src/include/gnunet_crypto_lib.h b/src/include/gnunet_crypto_lib.h
index a5a50e749dd00c3069f8e9fd27981b90b646c7dd..e880bd8870f297a1086ce6e1a78b52a5dadc8278 100644 (file)
--- a/src/include/gnunet_crypto_lib.h
+++ b/src/include/gnunet_crypto_lib.h
@@ -874,12 +874,25 @@ GNUNET_CRYPTO_hash_to_aes_key (
  * Obtain a bit from a hashcode.
  *
  * @param code the `struct GNUNET_HashCode` to index bit-wise
- * @param bit index into the hashcode, [0...159]
+ * @param bit index into the hashcode, [0...159] where 0 is the leftmost bit
+ *        (bytes in code interpreted big endian)
  * @return Bit \a bit from hashcode \a code, -1 for invalid index
  */
 int
-GNUNET_CRYPTO_hash_get_bit (const struct GNUNET_HashCode *code,
-                            unsigned int bit);
+GNUNET_CRYPTO_hash_get_bit_ltr (const struct GNUNET_HashCode *code,
+                                unsigned int bit);
+
+
+/**
+ * Obtain a bit from a hashcode.
+ * @param code the GNUNET_CRYPTO_hash to index bit-wise
+ * @param bit index into the hashcode, [0...511] where 0 is the rightmost bit
+ *        (bytes in code interpreted little endian)
+ * @return Bit \a bit from hashcode \a code, -1 for invalid index
+ */
+int
+GNUNET_CRYPTO_hash_get_bit_rtl (const struct GNUNET_HashCode *code,
+                                unsigned int bit);
 
 
 /**