Mercurial > hg
view contrib/fuzz/pyutil.cc @ 41015:b444407f635b
fuzz: new fuzzer for dirstate parser
Differential Revision: https://phab.mercurial-scm.org/D5463
author | Augie Fackler <augie@google.com> |
---|---|
date | Wed, 19 Dec 2018 23:48:35 -0500 |
parents | ef103c96ed33 |
children | c78f8f0720cc |
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#include "pyutil.h" #include <string> namespace contrib { static char cpypath[8192] = "\0"; static PyObject *mainmod; static PyObject *globals; /* TODO: use Python 3 for this fuzzing? */ PyMODINIT_FUNC initparsers(void); void initpy(const char *cselfpath) { const std::string subdir = "/sanpy/lib/python2.7"; /* HACK ALERT: we need a full Python installation built without pymalloc and with ASAN, so we dump one in $OUT/sanpy/lib/python2.7. This helps us wire that up. */ std::string selfpath(cselfpath); std::string pypath; auto pos = selfpath.rfind("/"); if (pos == std::string::npos) { char wd[8192]; getcwd(wd, 8192); pypath = std::string(wd) + subdir; } else { pypath = selfpath.substr(0, pos) + subdir; } strncpy(cpypath, pypath.c_str(), pypath.size()); setenv("PYTHONPATH", cpypath, 1); setenv("PYTHONNOUSERSITE", "1", 1); /* prevent Python from looking up users in the fuzz environment */ setenv("PYTHONUSERBASE", cpypath, 1); Py_SetPythonHome(cpypath); Py_InitializeEx(0); mainmod = PyImport_AddModule("__main__"); globals = PyModule_GetDict(mainmod); initparsers(); } PyObject *pyglobals() { return globals; } } // namespace contrib