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#include <Common/getHashOfLoadedBinary.h>
#if defined(OS_LINUX)
#include <link.h>
#include <array>
#include <base/hex.h>
static int callback(dl_phdr_info * info, size_t, void * data)
{
SipHash & hash = *reinterpret_cast<SipHash*>(data);
for (size_t header_index = 0; header_index < info->dlpi_phnum; ++header_index)
{
const auto & phdr = info->dlpi_phdr[header_index];
if (phdr.p_type == PT_LOAD && (phdr.p_flags & PF_X))
{
hash.update(phdr.p_filesz);
hash.update(reinterpret_cast<const char *>(info->dlpi_addr + phdr.p_vaddr), phdr.p_filesz);
}
}
return 1; /// Do not continue iterating.
}
SipHash getHashOfLoadedBinary()
{
SipHash hash;
dl_iterate_phdr(callback, &hash);
return hash;
}
std::string getHashOfLoadedBinaryHex()
{
SipHash hash = getHashOfLoadedBinary();
const auto checksum = hash.get128();
return getHexUIntUppercase(checksum);
}
#else
SipHash getHashOfLoadedBinary()
{
return {};
}
std::string getHashOfLoadedBinaryHex()
{
return {};
}
#endif
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