Merge pull request #5510

a0ae79d Replace CBlockHeader::GetHash with call to SerializeHash (Wladimir J. van der Laan)
62b30f0 Add serialize float/double tests (Wladimir J. van der Laan)
9f4fac9 src/txmempool.cpp: make numEntries a uint32_t (Wladimir J. van der Laan)
f4e6487 src/arith_256.cpp: bigendian compatibility (Wladimir J. van der Laan)
aac3205 src/netbase.h: Fix endian in CNetAddr serialization (Wladimir J. van der Laan)
01f9c34 src/serialize.h: base serialization level endianness neutrality (Wladimir J. van der Laan)
4e853aa src/script/script.h: endian compatibility for PUSHDATA sizes (Wladimir J. van der Laan)
4f92773 src/primitives/transaction.h: endian compatibility in serialization (Wladimir J. van der Laan)
81aeb28 src/primitives/block.cpp: endian compatibility in GetHash (Wladimir J. van der Laan)
dec84ca src/net.cpp: endian compatibility in EndMessage (Wladimir J. van der Laan)
556814e src/main.cpp: endian compatibility in packet checksum check (Wladimir J. van der Laan)
3ca5852 src/hash.cpp: endian compatibility (Wladimir J. van der Laan)
4414f5f build: Endian compatibility (Wladimir J. van der Laan)

1 files changed, 5 insertions, 4 deletions

diff --git a/src/arith_uint256.cpp b/src/arith_uint256.cpp
index 1243823da..2e6136357 100644
--- a/src/arith_uint256.cpp
+++ b/src/arith_uint256.cpp
@@ -7,6 +7,7 @@
 
 #include "uint256.h"
 #include "utilstrencodings.h"
+#include "crypto/common.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -246,14 +247,14 @@ uint32_t arith_uint256::GetCompact(bool fNegative) const
 uint256 ArithToUint256(const arith_uint256 &a)
 {
     uint256 b;
-    // TODO: needs bswap32 on big-endian
-    memcpy(b.begin(), a.pn, a.size());
+    for(int x=0; x<a.WIDTH; ++x)
+        WriteLE32(b.begin() + x*4, a.pn[x]);
     return b;
 }
 arith_uint256 UintToArith256(const uint256 &a)
 {
     arith_uint256 b;
-    // TODO: needs bswap32 on big-endian
-    memcpy(b.pn, a.begin(), a.size());
+    for(int x=0; x<b.WIDTH; ++x)
+        b.pn[x] = ReadLE32(a.begin() + x*4);
     return b;
 }