mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
Li, Xun
110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
/*
|
|
* Copyright (C) 2011-2020 Intel Corporation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * 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.
|
|
* * Neither the name of Intel Corporation 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
|
|
* OWNER 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.
|
|
*
|
|
*/
|
|
|
|
|
|
#include "util_st.h"
|
|
#include "se_trace.h"
|
|
#include <assert.h>
|
|
#include <fstream>
|
|
|
|
extern "C" bool write_data_to_file(const char *filename, std::ios_base::openmode mode,
|
|
uint8_t *buf, size_t bsize, long offset)
|
|
{
|
|
if(filename == NULL || (buf == NULL && bsize != 0) || (buf != NULL && bsize == 0))
|
|
return false;
|
|
std::ofstream ofs(filename, mode);
|
|
if(!ofs.good())
|
|
{
|
|
se_trace(SE_TRACE_ERROR, OPEN_FILE_ERROR, filename);
|
|
return false;
|
|
}
|
|
ofs.seekp(offset, std::ios::beg);
|
|
ofs.write(reinterpret_cast<char*>(buf), bsize);
|
|
if(ofs.fail())
|
|
{
|
|
se_trace(SE_TRACE_ERROR, WRITE_FILE_ERROR, filename);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
extern "C" size_t get_file_size(const char *filename)
|
|
{
|
|
std::ifstream ifs(filename, std::ios::in | std::ios::binary);
|
|
if(!ifs.good())
|
|
{
|
|
se_trace(SE_TRACE_ERROR, OPEN_FILE_ERROR, filename);
|
|
return -1;
|
|
}
|
|
ifs.seekg(0, std::ios::end);
|
|
size_t size = (size_t)ifs.tellg();
|
|
return size;
|
|
}
|
|
|
|
extern "C" bool read_file_to_buf(const char *filename, uint8_t *buf, size_t bsize)
|
|
{
|
|
if(filename == NULL || buf == NULL || bsize == 0)
|
|
return false;
|
|
std::ifstream ifs(filename, std::ios::binary|std::ios::in);
|
|
if(!ifs.good())
|
|
{
|
|
se_trace(SE_TRACE_ERROR, OPEN_FILE_ERROR, filename);
|
|
return false;
|
|
}
|
|
ifs.read(reinterpret_cast<char *> (buf), bsize);
|
|
if(ifs.fail())
|
|
{
|
|
return false;
|
|
}
|
|
return true;
|
|
|
|
}
|
|
|
|
extern "C" bool copy_file(const char *source_path, const char *dest_path)
|
|
{
|
|
std::ifstream ifs(source_path, std::ios::binary|std::ios::in);
|
|
if(!ifs.good())
|
|
{
|
|
se_trace(SE_TRACE_ERROR, OPEN_FILE_ERROR, source_path);
|
|
return false;
|
|
}
|
|
|
|
std::ofstream ofs(dest_path, std::ios::binary|std::ios::out);
|
|
if(!ofs.good())
|
|
{
|
|
se_trace(SE_TRACE_ERROR, OPEN_FILE_ERROR, dest_path);
|
|
return false;
|
|
}
|
|
ofs << ifs.rdbuf();
|
|
return true;
|
|
}
|
|
|