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storages: fix "portable" storage on big endian

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moneromooo-monero 2019-05-13 20:49:50 +00:00
parent 32c3834948
commit 516f7b9de0
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4 changed files with 99 additions and 3 deletions
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46
contrib/epee/include/storages/portable_storage_bin_utils.h Normal file
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@ -0,0 +1,46 @@
// Copyright (c) 2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#pragma once
#include "int-util.h"
template<typename T> T convert_swapper(T t) { return t; }
template<> inline uint16_t convert_swapper(uint16_t t) { return SWAP16LE(t); }
template<> inline int16_t convert_swapper(int16_t t) { return SWAP16LE((uint16_t&)t); }
template<> inline uint32_t convert_swapper(uint32_t t) { return SWAP32LE(t); }
template<> inline int32_t convert_swapper(int32_t t) { return SWAP32LE((uint32_t&)t); }
template<> inline uint64_t convert_swapper(uint64_t t) { return SWAP64LE(t); }
template<> inline int64_t convert_swapper(int64_t t) { return SWAP64LE((uint64_t&)t); }
template<> inline double convert_swapper(double t) { union { uint64_t u; double d; } u; u.d = t; u.u = SWAP64LE(u.u); return u.d; }
#if BYTE_ORDER == BIG_ENDIAN
#define CONVERT_POD(x) convert_swapper(x)
#else
#define CONVERT_POD(x) (x)
#endif

4
contrib/epee/include/storages/portable_storage_from_bin.h
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@ -30,6 +30,7 @@
#include "misc_language.h"
#include "portable_storage_base.h"
#include "portable_storage_bin_utils.h"
#ifdef EPEE_PORTABLE_STORAGE_RECURSION_LIMIT
#define EPEE_PORTABLE_STORAGE_RECURSION_LIMIT_INTERNAL EPEE_PORTABLE_STORAGE_RECURSION_LIMIT
@ -117,6 +118,7 @@ namespace epee
RECURSION_LIMITATION();
static_assert(std::is_pod<t_pod_type>::value, "POD type expected");
read(&pod_val, sizeof(pod_val));
pod_val = CONVERT_POD(pod_val);
}
template<class t_type>
@ -140,7 +142,7 @@ namespace epee
sa.reserve(size);
//TODO: add some optimization here later
while(size--)
sa.m_array.push_back(read<type_name>());
sa.m_array.push_back(read<type_name>());
return storage_entry(array_entry(sa));
}

10
contrib/epee/include/storages/portable_storage_to_bin.h
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@ -31,6 +31,7 @@
#include "pragma_comp_defs.h"
#include "misc_language.h"
#include "portable_storage_base.h"
#include "portable_storage_bin_utils.h"
namespace epee
{
@ -42,6 +43,7 @@ namespace epee
{
pack_value v = pv << 2;
v |= type_or;
v = CONVERT_POD(v);
strm.write((const char*)&v, sizeof(pack_value));
return sizeof(pack_value);
}
@ -93,8 +95,11 @@ namespace epee
uint8_t type = contained_type|SERIALIZE_FLAG_ARRAY;
m_strm.write((const char*)&type, 1);
pack_varint(m_strm, arr_pod.m_array.size());
for(const t_pod_type& x: arr_pod.m_array)
for(t_pod_type x: arr_pod.m_array)
{
x = CONVERT_POD(x);
m_strm.write((const char*)&x, sizeof(t_pod_type));
}
return true;
}
@ -147,7 +152,8 @@ namespace epee
bool pack_pod_type(uint8_t type, const pod_type& v)
{
m_strm.write((const char*)&type, 1);
m_strm.write((const char*)&v, sizeof(pod_type));
pod_type v0 = CONVERT_POD(v);
m_strm.write((const char*)&v0, sizeof(pod_type));
return true;
}
//section, array_entry