cef0a71bce
They're never actually going to change independently, and it's also brining in kutil headers more places than they should be.
51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
#include "elf/elf.h"
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#include "elf/headers.h"
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#include "kutil/memory.h"
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static const uint32_t expected_magic = 0x464c457f; // "\x7f" "ELF"
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namespace elf {
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elf::elf(const void *data, size_t size) :
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m_data(data),
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m_size(size)
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{
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}
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bool
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elf::valid() const
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{
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const file_header *fheader = header();
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return
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fheader->magic == expected_magic &&
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fheader->word_size == wordsize::bits64 &&
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fheader->endianness == encoding::lsb &&
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fheader->os_abi == osabi::sysV &&
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fheader->file_type == filetype::executable &&
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fheader->machine_type == machine::x64 &&
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fheader->ident_version == 1 &&
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fheader->version == 1;
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}
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const program_header *
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elf::program(unsigned index) const
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{
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const file_header *fheader = header();
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uint64_t off = fheader->ph_offset + (index * fheader->ph_entsize);
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const void *pheader = kutil::offset_pointer(m_data, off);
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return reinterpret_cast<const program_header *>(pheader);
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}
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const section_header *
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elf::section(unsigned index) const
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{
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const file_header *fheader = header();
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uint64_t off = fheader->sh_offset + (index * fheader->sh_entsize);
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const void *sheader = kutil::offset_pointer(m_data, off);
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return reinterpret_cast<const section_header *>(sheader);
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}
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} // namespace elf
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