view contrib/fuzz/pyutil.cc @ 42713:2c1a484ce4d4 stable

test: further fixes to matching for run-tests.py bug

The fix in bac24a8a095a did not fix the full issue, because the extra number
also eat some of the separator space. Since we are already matching arbitrary
number of space, we easily fix the matching.

#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