view contrib/fuzz/pyutil.cc @ 43117:8ff1ecfadcd1

cleanup: join string literals that are already on one line Thanks to Kyle for noticing this and for providing the regular expression to run on the codebase. This patch has been reviewed by the test suite and they approved of it. # skip-blame: fallout from mass reformatting Differential Revision: https://phab.mercurial-scm.org/D7028
author Martin von Zweigbergk <martinvonz@google.com>
date Tue, 08 Oct 2019 15:06:18 -0700
parents ef103c96ed33
children c78f8f0720cc
line wrap: on
line source

#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