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qpdf/fuzz/standalone_fuzz_target_runner.cc

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#include <qpdf/QUtil.hh>
#include <qpdf/PointerHolder.hh>
#include <qpdf/QIntC.hh>
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#include <iostream>
#include <string>
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extern "C" int LLVMFuzzerTestOneInput(unsigned char const* data, size_t size);
static void read_file_into_memory(
char const* filename,
PointerHolder<unsigned char>& file_buf, size_t& size)
{
FILE* f = QUtil::safe_fopen(filename, "rb");
fseek(f, 0, SEEK_END);
size = QIntC::to_size(QUtil::tell(f));
fseek(f, 0, SEEK_SET);
file_buf = PointerHolder<unsigned char>(true, new unsigned char[size]);
unsigned char* buf_p = file_buf.getPointer();
size_t bytes_read = 0;
size_t len = 0;
while ((len = fread(buf_p + bytes_read, 1, size - bytes_read, f)) > 0)
{
bytes_read += len;
}
if (bytes_read != size)
{
throw std::runtime_error(
std::string("failure reading file ") + filename +
" into memory: read " +
QUtil::uint_to_string(bytes_read) + "; wanted " +
QUtil::uint_to_string(size));
}
fclose(f);
}
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int main(int argc, char **argv)
{
for (int i = 1; i < argc; i++)
{
PointerHolder<unsigned char> file_buf;
size_t size = 0;
read_file_into_memory(argv[i], file_buf, size);
LLVMFuzzerTestOneInput(file_buf.getPointer(), size);
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std::cout << argv[i] << " successful" << std::endl;
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}
return 0;
}