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// Copyright (c) 2015, Google Inc.
// 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 Google Inc. 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.
// Original author: Erik Chen <erikchen@chromium.org>
// super_fat_arch.h: A class to handle 64-bit object files. Has conversions to
// and from struct fat_arch.
#ifndef BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_
#define BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_
#include <limits>
#include <mach-o/fat.h>
#include <stdint.h>
// Similar to struct fat_arch, except size-related parameters support
// 64-bits.
class SuperFatArch {
public:
uint32_t cputype;
uint32_t cpusubtype;
uint64_t offset;
uint64_t size;
uint64_t align;
SuperFatArch() :
cputype(0),
cpusubtype(0),
offset(0),
size(0),
align(0) {
}
explicit SuperFatArch(const struct fat_arch &arch) :
cputype(arch.cputype),
cpusubtype(arch.cpusubtype),
offset(arch.offset),
size(arch.size),
align(arch.align) {
}
// Returns false if the conversion cannot be made.
// If the conversion succeeds, the result is placed in |output_arch|.
bool ConvertToFatArch(struct fat_arch* output_arch) const {
if (offset > std::numeric_limits<uint32_t>::max())
return false;
if (size > std::numeric_limits<uint32_t>::max())
return false;
if (align > std::numeric_limits<uint32_t>::max())
return false;
struct fat_arch arch;
arch.cputype = cputype;
arch.cpusubtype = cpusubtype;
arch.offset = offset;
arch.size = size;
arch.align = align;
*output_arch = arch;
return true;
}
};
#endif // BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_
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