mirror of
https://github.com/python/cpython.git
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ada8b6d1b1
Add the -P command line option and the PYTHONSAFEPATH environment variable to not prepend a potentially unsafe path to sys.path. * Add sys.flags.safe_path flag. * Add PyConfig.safe_path member. * Programs/_bootstrap_python.c uses config.safe_path=0. * Update subprocess._optim_args_from_interpreter_flags() to handle the -P command line option. * Modules/getpath.py sets safe_path to 1 if a "._pth" file is present.
118 lines
3 KiB
C
118 lines
3 KiB
C
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/* Frozen modules bootstrap
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*
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* Limited and restricted Python interpreter to run
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* "Tools/scripts/deepfreeze.py" on systems with no or older Python
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* interpreter.
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*/
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#include "Python.h"
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#include "pycore_import.h"
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/* Includes for frozen modules: */
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#include "Python/frozen_modules/importlib._bootstrap.h"
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#include "Python/frozen_modules/importlib._bootstrap_external.h"
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/* End includes */
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/* Empty initializer for deepfrozen modules */
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int _Py_Deepfreeze_Init(void)
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{
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return 0;
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}
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/* Empty finalizer for deepfrozen modules */
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void
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_Py_Deepfreeze_Fini(void)
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{
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}
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/* Note that a negative size indicates a package. */
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static const struct _frozen bootstrap_modules[] = {
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{"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap)},
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{"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external)},
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{0, 0, 0} /* bootstrap sentinel */
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};
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static const struct _frozen stdlib_modules[] = {
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{0, 0, 0} /* stdlib sentinel */
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};
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static const struct _frozen test_modules[] = {
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{0, 0, 0} /* test sentinel */
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};
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const struct _frozen *_PyImport_FrozenBootstrap = bootstrap_modules;
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const struct _frozen *_PyImport_FrozenStdlib = stdlib_modules;
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const struct _frozen *_PyImport_FrozenTest = test_modules;
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static const struct _module_alias aliases[] = {
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{"_frozen_importlib", "importlib._bootstrap"},
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{"_frozen_importlib_external", "importlib._bootstrap_external"},
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{0, 0} /* aliases sentinel */
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};
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const struct _module_alias *_PyImport_FrozenAliases = aliases;
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/* Embedding apps may change this pointer to point to their favorite
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collection of frozen modules: */
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const struct _frozen *PyImport_FrozenModules = NULL;
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int
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#ifdef MS_WINDOWS
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wmain(int argc, wchar_t **argv)
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#else
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main(int argc, char **argv)
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#endif
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{
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PyStatus status;
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PyConfig config;
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PyConfig_InitIsolatedConfig(&config);
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// don't warn, pybuilddir.txt does not exist yet
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config.pathconfig_warnings = 0;
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// parse arguments
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config.parse_argv = 1;
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// add current script dir to sys.path
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config.isolated = 0;
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config.safe_path = 0;
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#ifdef MS_WINDOWS
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status = PyConfig_SetArgv(&config, argc, argv);
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#else
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status = PyConfig_SetBytesArgv(&config, argc, argv);
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#endif
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if (PyStatus_Exception(status)) {
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goto error;
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}
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status = PyConfig_Read(&config);
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if (config.run_filename == NULL) {
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status = PyStatus_Error("Run filename expected");
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goto error;
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}
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#define CLEAR(ATTR) \
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do { \
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PyMem_RawFree(ATTR); \
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ATTR = NULL; \
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} while (0)
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// isolate from system Python
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CLEAR(config.base_prefix);
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CLEAR(config.prefix);
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CLEAR(config.base_exec_prefix);
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CLEAR(config.exec_prefix);
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status = Py_InitializeFromConfig(&config);
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if (PyStatus_Exception(status)) {
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goto error;
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}
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PyConfig_Clear(&config);
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return Py_RunMain();
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error:
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PyConfig_Clear(&config);
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if (PyStatus_IsExit(status)) {
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return status.exitcode;
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}
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Py_ExitStatusException(status);
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}
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