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#include <Python.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "pyutil.h"
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#include <iostream>
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#include <string>
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extern "C" {
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static PYCODETYPE *code;
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extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
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{
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contrib::initpy(*argv[0]);
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code = (PYCODETYPE *)Py_CompileString(R"py(
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try:
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for fn in (
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parsers.isasciistr,
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parsers.asciilower,
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parsers.asciiupper,
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parsers.encodedir,
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parsers.pathencode,
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parsers.lowerencode,
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):
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try:
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fn(data)
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except UnicodeDecodeError:
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pass # some functions emit this exception
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except AttributeError:
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# pathencode needs hashlib, which fails to import because the time
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# module fails to import. We should try and fix that some day, but
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# for now we at least get coverage on non-hashencoded codepaths.
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if fn != pathencode:
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raise
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# uncomment this for debugging exceptions
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# except Exception as e:
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# raise Exception('%r: %r' % (fn, e))
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except Exception as e:
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pass
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# uncomment this print if you're editing this Python code
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# to debug failures.
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# print(e)
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)py",
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"fuzzer", Py_file_input);
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if (!code) {
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std::cerr << "failed to compile Python code!" << std::endl;
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}
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return 0;
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}
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
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{
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PyObject *mtext =
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PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size);
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PyObject *locals = PyDict_New();
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PyDict_SetItemString(locals, "data", mtext);
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PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals);
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if (!res) {
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PyErr_Print();
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}
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Py_XDECREF(res);
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Py_DECREF(locals);
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Py_DECREF(mtext);
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return 0; // Non-zero return values are reserved for future use.
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}
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}
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