| #include "Python.h" |
| #include "osdefs.h" /* DELIM */ |
| #include "pycore_fileutils.h" |
| #include "pycore_getopt.h" |
| #include "pycore_initconfig.h" |
| #include "pycore_pathconfig.h" |
| #include "pycore_pyerrors.h" |
| #include "pycore_pylifecycle.h" |
| #include "pycore_pymem.h" |
| #include "pycore_pystate.h" /* _PyRuntime */ |
| #include <locale.h> /* setlocale() */ |
| #ifdef HAVE_LANGINFO_H |
| # include <langinfo.h> /* nl_langinfo(CODESET) */ |
| #endif |
| #if defined(MS_WINDOWS) || defined(__CYGWIN__) |
| # include <windows.h> /* GetACP() */ |
| # ifdef HAVE_IO_H |
| # include <io.h> |
| # endif |
| # ifdef HAVE_FCNTL_H |
| # include <fcntl.h> /* O_BINARY */ |
| # endif |
| #endif |
| |
| |
| /* --- Command line options --------------------------------------- */ |
| |
| /* Short usage message (with %s for argv0) */ |
| static const char usage_line[] = |
| "usage: %ls [option] ... [-c cmd | -m mod | file | -] [arg] ...\n"; |
| |
| /* Long usage message, split into parts < 512 bytes */ |
| static const char usage_1[] = "\ |
| Options and arguments (and corresponding environment variables):\n\ |
| -b : issue warnings about str(bytes_instance), str(bytearray_instance)\n\ |
| and comparing bytes/bytearray with str. (-bb: issue errors)\n\ |
| -B : don't write .pyc files on import; also PYTHONDONTWRITEBYTECODE=x\n\ |
| -c cmd : program passed in as string (terminates option list)\n\ |
| -d : debug output from parser; also PYTHONDEBUG=x\n\ |
| -E : ignore PYTHON* environment variables (such as PYTHONPATH)\n\ |
| -h : print this help message and exit (also --help)\n\ |
| "; |
| static const char usage_2[] = "\ |
| -i : inspect interactively after running script; forces a prompt even\n\ |
| if stdin does not appear to be a terminal; also PYTHONINSPECT=x\n\ |
| -I : isolate Python from the user's environment (implies -E and -s)\n\ |
| -m mod : run library module as a script (terminates option list)\n\ |
| -O : remove assert and __debug__-dependent statements; add .opt-1 before\n\ |
| .pyc extension; also PYTHONOPTIMIZE=x\n\ |
| -OO : do -O changes and also discard docstrings; add .opt-2 before\n\ |
| .pyc extension\n\ |
| -q : don't print version and copyright messages on interactive startup\n\ |
| -s : don't add user site directory to sys.path; also PYTHONNOUSERSITE\n\ |
| -S : don't imply 'import site' on initialization\n\ |
| "; |
| static const char usage_3[] = "\ |
| -u : force the stdout and stderr streams to be unbuffered;\n\ |
| this option has no effect on stdin; also PYTHONUNBUFFERED=x\n\ |
| -v : verbose (trace import statements); also PYTHONVERBOSE=x\n\ |
| can be supplied multiple times to increase verbosity\n\ |
| -V : print the Python version number and exit (also --version)\n\ |
| when given twice, print more information about the build\n\ |
| -W arg : warning control; arg is action:message:category:module:lineno\n\ |
| also PYTHONWARNINGS=arg\n\ |
| -x : skip first line of source, allowing use of non-Unix forms of #!cmd\n\ |
| -X opt : set implementation-specific option\n\ |
| --check-hash-based-pycs always|default|never:\n\ |
| control how Python invalidates hash-based .pyc files\n\ |
| "; |
| static const char usage_4[] = "\ |
| file : program read from script file\n\ |
| - : program read from stdin (default; interactive mode if a tty)\n\ |
| arg ...: arguments passed to program in sys.argv[1:]\n\n\ |
| Other environment variables:\n\ |
| PYTHONSTARTUP: file executed on interactive startup (no default)\n\ |
| PYTHONPATH : '%lc'-separated list of directories prefixed to the\n\ |
| default module search path. The result is sys.path.\n\ |
| "; |
| static const char usage_5[] = |
| "PYTHONHOME : alternate <prefix> directory (or <prefix>%lc<exec_prefix>).\n" |
| " The default module search path uses %s.\n" |
| "PYTHONCASEOK : ignore case in 'import' statements (Windows).\n" |
| "PYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr.\n" |
| "PYTHONFAULTHANDLER: dump the Python traceback on fatal errors.\n"; |
| static const char usage_6[] = |
| "PYTHONHASHSEED: if this variable is set to 'random', a random value is used\n" |
| " to seed the hashes of str and bytes objects. It can also be set to an\n" |
| " integer in the range [0,4294967295] to get hash values with a\n" |
| " predictable seed.\n" |
| "PYTHONMALLOC: set the Python memory allocators and/or install debug hooks\n" |
| " on Python memory allocators. Use PYTHONMALLOC=debug to install debug\n" |
| " hooks.\n" |
| "PYTHONCOERCECLOCALE: if this variable is set to 0, it disables the locale\n" |
| " coercion behavior. Use PYTHONCOERCECLOCALE=warn to request display of\n" |
| " locale coercion and locale compatibility warnings on stderr.\n" |
| "PYTHONBREAKPOINT: if this variable is set to 0, it disables the default\n" |
| " debugger. It can be set to the callable of your debugger of choice.\n" |
| "PYTHONDEVMODE: enable the development mode.\n" |
| "PYTHONPYCACHEPREFIX: root directory for bytecode cache (pyc) files.\n"; |
| |
| #if defined(MS_WINDOWS) |
| # define PYTHONHOMEHELP "<prefix>\\python{major}{minor}" |
| #else |
| # define PYTHONHOMEHELP "<prefix>/lib/pythonX.X" |
| #endif |
| |
| |
| /* --- Global configuration variables ----------------------------- */ |
| |
| /* UTF-8 mode (PEP 540): if equals to 1, use the UTF-8 encoding, and change |
| stdin and stdout error handler to "surrogateescape". */ |
| int Py_UTF8Mode = 0; |
| int Py_DebugFlag = 0; /* Needed by parser.c */ |
| int Py_VerboseFlag = 0; /* Needed by import.c */ |
| int Py_QuietFlag = 0; /* Needed by sysmodule.c */ |
| int Py_InteractiveFlag = 0; /* Needed by Py_FdIsInteractive() below */ |
| int Py_InspectFlag = 0; /* Needed to determine whether to exit at SystemExit */ |
| int Py_OptimizeFlag = 0; /* Needed by compile.c */ |
| int Py_NoSiteFlag = 0; /* Suppress 'import site' */ |
| int Py_BytesWarningFlag = 0; /* Warn on str(bytes) and str(buffer) */ |
| int Py_FrozenFlag = 0; /* Needed by getpath.c */ |
| int Py_IgnoreEnvironmentFlag = 0; /* e.g. PYTHONPATH, PYTHONHOME */ |
| int Py_DontWriteBytecodeFlag = 0; /* Suppress writing bytecode files (*.pyc) */ |
| int Py_NoUserSiteDirectory = 0; /* for -s and site.py */ |
| int Py_UnbufferedStdioFlag = 0; /* Unbuffered binary std{in,out,err} */ |
| int Py_HashRandomizationFlag = 0; /* for -R and PYTHONHASHSEED */ |
| int Py_IsolatedFlag = 0; /* for -I, isolate from user's env */ |
| #ifdef MS_WINDOWS |
| int Py_LegacyWindowsFSEncodingFlag = 0; /* Uses mbcs instead of utf-8 */ |
| int Py_LegacyWindowsStdioFlag = 0; /* Uses FileIO instead of WindowsConsoleIO */ |
| #endif |
| |
| |
| static PyObject * |
| _Py_GetGlobalVariablesAsDict(void) |
| { |
| PyObject *dict, *obj; |
| |
| dict = PyDict_New(); |
| if (dict == NULL) { |
| return NULL; |
| } |
| |
| #define SET_ITEM(KEY, EXPR) \ |
| do { \ |
| obj = (EXPR); \ |
| if (obj == NULL) { \ |
| return NULL; \ |
| } \ |
| int res = PyDict_SetItemString(dict, (KEY), obj); \ |
| Py_DECREF(obj); \ |
| if (res < 0) { \ |
| goto fail; \ |
| } \ |
| } while (0) |
| #define SET_ITEM_INT(VAR) \ |
| SET_ITEM(#VAR, PyLong_FromLong(VAR)) |
| #define FROM_STRING(STR) \ |
| ((STR != NULL) ? \ |
| PyUnicode_FromString(STR) \ |
| : (Py_INCREF(Py_None), Py_None)) |
| #define SET_ITEM_STR(VAR) \ |
| SET_ITEM(#VAR, FROM_STRING(VAR)) |
| |
| SET_ITEM_STR(Py_FileSystemDefaultEncoding); |
| SET_ITEM_INT(Py_HasFileSystemDefaultEncoding); |
| SET_ITEM_STR(Py_FileSystemDefaultEncodeErrors); |
| SET_ITEM_INT(_Py_HasFileSystemDefaultEncodeErrors); |
| |
| SET_ITEM_INT(Py_UTF8Mode); |
| SET_ITEM_INT(Py_DebugFlag); |
| SET_ITEM_INT(Py_VerboseFlag); |
| SET_ITEM_INT(Py_QuietFlag); |
| SET_ITEM_INT(Py_InteractiveFlag); |
| SET_ITEM_INT(Py_InspectFlag); |
| |
| SET_ITEM_INT(Py_OptimizeFlag); |
| SET_ITEM_INT(Py_NoSiteFlag); |
| SET_ITEM_INT(Py_BytesWarningFlag); |
| SET_ITEM_INT(Py_FrozenFlag); |
| SET_ITEM_INT(Py_IgnoreEnvironmentFlag); |
| SET_ITEM_INT(Py_DontWriteBytecodeFlag); |
| SET_ITEM_INT(Py_NoUserSiteDirectory); |
| SET_ITEM_INT(Py_UnbufferedStdioFlag); |
| SET_ITEM_INT(Py_HashRandomizationFlag); |
| SET_ITEM_INT(Py_IsolatedFlag); |
| |
| #ifdef MS_WINDOWS |
| SET_ITEM_INT(Py_LegacyWindowsFSEncodingFlag); |
| SET_ITEM_INT(Py_LegacyWindowsStdioFlag); |
| #endif |
| |
| return dict; |
| |
| fail: |
| Py_DECREF(dict); |
| return NULL; |
| |
| #undef FROM_STRING |
| #undef SET_ITEM |
| #undef SET_ITEM_INT |
| #undef SET_ITEM_STR |
| } |
| |
| |
| /* --- PyStatus ----------------------------------------------- */ |
| |
| PyStatus PyStatus_Ok(void) |
| { return _PyStatus_OK(); } |
| |
| PyStatus PyStatus_Error(const char *err_msg) |
| { |
| return (PyStatus){._type = _PyStatus_TYPE_ERROR, |
| .err_msg = err_msg}; |
| } |
| |
| PyStatus PyStatus_NoMemory(void) |
| { return PyStatus_Error("memory allocation failed"); } |
| |
| PyStatus PyStatus_Exit(int exitcode) |
| { return _PyStatus_EXIT(exitcode); } |
| |
| |
| int PyStatus_IsError(PyStatus status) |
| { return _PyStatus_IS_ERROR(status); } |
| |
| int PyStatus_IsExit(PyStatus status) |
| { return _PyStatus_IS_EXIT(status); } |
| |
| int PyStatus_Exception(PyStatus status) |
| { return _PyStatus_EXCEPTION(status); } |
| |
| |
| /* --- PyWideStringList ------------------------------------------------ */ |
| |
| #ifndef NDEBUG |
| int |
| _PyWideStringList_CheckConsistency(const PyWideStringList *list) |
| { |
| assert(list->length >= 0); |
| if (list->length != 0) { |
| assert(list->items != NULL); |
| } |
| for (Py_ssize_t i = 0; i < list->length; i++) { |
| assert(list->items[i] != NULL); |
| } |
| return 1; |
| } |
| #endif /* Py_DEBUG */ |
| |
| |
| void |
| _PyWideStringList_Clear(PyWideStringList *list) |
| { |
| assert(_PyWideStringList_CheckConsistency(list)); |
| for (Py_ssize_t i=0; i < list->length; i++) { |
| PyMem_RawFree(list->items[i]); |
| } |
| PyMem_RawFree(list->items); |
| list->length = 0; |
| list->items = NULL; |
| } |
| |
| |
| int |
| _PyWideStringList_Copy(PyWideStringList *list, const PyWideStringList *list2) |
| { |
| assert(_PyWideStringList_CheckConsistency(list)); |
| assert(_PyWideStringList_CheckConsistency(list2)); |
| |
| if (list2->length == 0) { |
| _PyWideStringList_Clear(list); |
| return 0; |
| } |
| |
| PyWideStringList copy = PyWideStringList_INIT; |
| |
| size_t size = list2->length * sizeof(list2->items[0]); |
| copy.items = PyMem_RawMalloc(size); |
| if (copy.items == NULL) { |
| return -1; |
| } |
| |
| for (Py_ssize_t i=0; i < list2->length; i++) { |
| wchar_t *item = _PyMem_RawWcsdup(list2->items[i]); |
| if (item == NULL) { |
| _PyWideStringList_Clear(©); |
| return -1; |
| } |
| copy.items[i] = item; |
| copy.length = i + 1; |
| } |
| |
| _PyWideStringList_Clear(list); |
| *list = copy; |
| return 0; |
| } |
| |
| |
| PyStatus |
| PyWideStringList_Insert(PyWideStringList *list, |
| Py_ssize_t index, const wchar_t *item) |
| { |
| Py_ssize_t len = list->length; |
| if (len == PY_SSIZE_T_MAX) { |
| /* length+1 would overflow */ |
| return _PyStatus_NO_MEMORY(); |
| } |
| if (index < 0) { |
| return _PyStatus_ERR("PyWideStringList_Insert index must be >= 0"); |
| } |
| if (index > len) { |
| index = len; |
| } |
| |
| wchar_t *item2 = _PyMem_RawWcsdup(item); |
| if (item2 == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| |
| size_t size = (len + 1) * sizeof(list->items[0]); |
| wchar_t **items2 = (wchar_t **)PyMem_RawRealloc(list->items, size); |
| if (items2 == NULL) { |
| PyMem_RawFree(item2); |
| return _PyStatus_NO_MEMORY(); |
| } |
| |
| if (index < len) { |
| memmove(&items2[index + 1], |
| &items2[index], |
| (len - index) * sizeof(items2[0])); |
| } |
| |
| items2[index] = item2; |
| list->items = items2; |
| list->length++; |
| return _PyStatus_OK(); |
| } |
| |
| |
| PyStatus |
| PyWideStringList_Append(PyWideStringList *list, const wchar_t *item) |
| { |
| return PyWideStringList_Insert(list, list->length, item); |
| } |
| |
| |
| PyStatus |
| _PyWideStringList_Extend(PyWideStringList *list, const PyWideStringList *list2) |
| { |
| for (Py_ssize_t i = 0; i < list2->length; i++) { |
| PyStatus status = PyWideStringList_Append(list, list2->items[i]); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static int |
| _PyWideStringList_Find(PyWideStringList *list, const wchar_t *item) |
| { |
| for (Py_ssize_t i = 0; i < list->length; i++) { |
| if (wcscmp(list->items[i], item) == 0) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| |
| PyObject* |
| _PyWideStringList_AsList(const PyWideStringList *list) |
| { |
| assert(_PyWideStringList_CheckConsistency(list)); |
| |
| PyObject *pylist = PyList_New(list->length); |
| if (pylist == NULL) { |
| return NULL; |
| } |
| |
| for (Py_ssize_t i = 0; i < list->length; i++) { |
| PyObject *item = PyUnicode_FromWideChar(list->items[i], -1); |
| if (item == NULL) { |
| Py_DECREF(pylist); |
| return NULL; |
| } |
| PyList_SET_ITEM(pylist, i, item); |
| } |
| return pylist; |
| } |
| |
| |
| /* --- Py_SetStandardStreamEncoding() ----------------------------- */ |
| |
| /* Helper to allow an embedding application to override the normal |
| * mechanism that attempts to figure out an appropriate IO encoding |
| */ |
| |
| static char *_Py_StandardStreamEncoding = NULL; |
| static char *_Py_StandardStreamErrors = NULL; |
| |
| int |
| Py_SetStandardStreamEncoding(const char *encoding, const char *errors) |
| { |
| if (Py_IsInitialized()) { |
| /* This is too late to have any effect */ |
| return -1; |
| } |
| |
| int res = 0; |
| |
| /* Py_SetStandardStreamEncoding() can be called before Py_Initialize(), |
| but Py_Initialize() can change the allocator. Use a known allocator |
| to be able to release the memory later. */ |
| PyMemAllocatorEx old_alloc; |
| _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| |
| /* Can't call PyErr_NoMemory() on errors, as Python hasn't been |
| * initialised yet. |
| * |
| * However, the raw memory allocators are initialised appropriately |
| * as C static variables, so _PyMem_RawStrdup is OK even though |
| * Py_Initialize hasn't been called yet. |
| */ |
| if (encoding) { |
| PyMem_RawFree(_Py_StandardStreamEncoding); |
| _Py_StandardStreamEncoding = _PyMem_RawStrdup(encoding); |
| if (!_Py_StandardStreamEncoding) { |
| res = -2; |
| goto done; |
| } |
| } |
| if (errors) { |
| PyMem_RawFree(_Py_StandardStreamErrors); |
| _Py_StandardStreamErrors = _PyMem_RawStrdup(errors); |
| if (!_Py_StandardStreamErrors) { |
| PyMem_RawFree(_Py_StandardStreamEncoding); |
| _Py_StandardStreamEncoding = NULL; |
| res = -3; |
| goto done; |
| } |
| } |
| #ifdef MS_WINDOWS |
| if (_Py_StandardStreamEncoding) { |
| /* Overriding the stream encoding implies legacy streams */ |
| Py_LegacyWindowsStdioFlag = 1; |
| } |
| #endif |
| |
| done: |
| PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| |
| return res; |
| } |
| |
| |
| void |
| _Py_ClearStandardStreamEncoding(void) |
| { |
| /* Use the same allocator than Py_SetStandardStreamEncoding() */ |
| PyMemAllocatorEx old_alloc; |
| _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| |
| /* We won't need them anymore. */ |
| if (_Py_StandardStreamEncoding) { |
| PyMem_RawFree(_Py_StandardStreamEncoding); |
| _Py_StandardStreamEncoding = NULL; |
| } |
| if (_Py_StandardStreamErrors) { |
| PyMem_RawFree(_Py_StandardStreamErrors); |
| _Py_StandardStreamErrors = NULL; |
| } |
| |
| PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| } |
| |
| |
| /* --- Py_GetArgcArgv() ------------------------------------------- */ |
| |
| /* For Py_GetArgcArgv(); set by _Py_SetArgcArgv() */ |
| static PyWideStringList orig_argv = {.length = 0, .items = NULL}; |
| |
| |
| void |
| _Py_ClearArgcArgv(void) |
| { |
| PyMemAllocatorEx old_alloc; |
| _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| |
| _PyWideStringList_Clear(&orig_argv); |
| |
| PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| } |
| |
| |
| static int |
| _Py_SetArgcArgv(Py_ssize_t argc, wchar_t * const *argv) |
| { |
| const PyWideStringList argv_list = {.length = argc, .items = (wchar_t **)argv}; |
| int res; |
| |
| PyMemAllocatorEx old_alloc; |
| _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| |
| res = _PyWideStringList_Copy(&orig_argv, &argv_list); |
| |
| PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| return res; |
| } |
| |
| |
| /* Make the *original* argc/argv available to other modules. |
| This is rare, but it is needed by the secureware extension. */ |
| void |
| Py_GetArgcArgv(int *argc, wchar_t ***argv) |
| { |
| *argc = (int)orig_argv.length; |
| *argv = orig_argv.items; |
| } |
| |
| |
| /* --- PyConfig ---------------------------------------------- */ |
| |
| #define DECODE_LOCALE_ERR(NAME, LEN) \ |
| (((LEN) == -2) \ |
| ? _PyStatus_ERR("cannot decode " NAME) \ |
| : _PyStatus_NO_MEMORY()) |
| |
| /* Free memory allocated in config, but don't clear all attributes */ |
| void |
| PyConfig_Clear(PyConfig *config) |
| { |
| #define CLEAR(ATTR) \ |
| do { \ |
| PyMem_RawFree(ATTR); \ |
| ATTR = NULL; \ |
| } while (0) |
| |
| CLEAR(config->pycache_prefix); |
| CLEAR(config->pythonpath_env); |
| CLEAR(config->home); |
| CLEAR(config->program_name); |
| |
| _PyWideStringList_Clear(&config->argv); |
| _PyWideStringList_Clear(&config->warnoptions); |
| _PyWideStringList_Clear(&config->xoptions); |
| _PyWideStringList_Clear(&config->module_search_paths); |
| config->module_search_paths_set = 0; |
| |
| CLEAR(config->executable); |
| CLEAR(config->base_executable); |
| CLEAR(config->prefix); |
| CLEAR(config->base_prefix); |
| CLEAR(config->exec_prefix); |
| CLEAR(config->base_exec_prefix); |
| |
| CLEAR(config->filesystem_encoding); |
| CLEAR(config->filesystem_errors); |
| CLEAR(config->stdio_encoding); |
| CLEAR(config->stdio_errors); |
| CLEAR(config->run_command); |
| CLEAR(config->run_module); |
| CLEAR(config->run_filename); |
| CLEAR(config->check_hash_pycs_mode); |
| #undef CLEAR |
| } |
| |
| |
| void |
| _PyConfig_InitCompatConfig(PyConfig *config) |
| { |
| memset(config, 0, sizeof(*config)); |
| |
| config->_config_version = _Py_CONFIG_VERSION; |
| config->_config_init = (int)_PyConfig_INIT_COMPAT; |
| config->isolated = -1; |
| config->use_environment = -1; |
| config->dev_mode = -1; |
| config->install_signal_handlers = 1; |
| config->use_hash_seed = -1; |
| config->faulthandler = -1; |
| config->tracemalloc = -1; |
| config->module_search_paths_set = 0; |
| config->parse_argv = 0; |
| config->site_import = -1; |
| config->bytes_warning = -1; |
| config->inspect = -1; |
| config->interactive = -1; |
| config->optimization_level = -1; |
| config->parser_debug= -1; |
| config->write_bytecode = -1; |
| config->verbose = -1; |
| config->quiet = -1; |
| config->user_site_directory = -1; |
| config->configure_c_stdio = 0; |
| config->buffered_stdio = -1; |
| config->_install_importlib = 1; |
| config->check_hash_pycs_mode = NULL; |
| config->pathconfig_warnings = -1; |
| config->_init_main = 1; |
| #ifdef MS_WINDOWS |
| config->legacy_windows_stdio = -1; |
| #endif |
| } |
| |
| |
| static void |
| config_init_defaults(PyConfig *config) |
| { |
| _PyConfig_InitCompatConfig(config); |
| |
| config->isolated = 0; |
| config->use_environment = 1; |
| config->site_import = 1; |
| config->bytes_warning = 0; |
| config->inspect = 0; |
| config->interactive = 0; |
| config->optimization_level = 0; |
| config->parser_debug= 0; |
| config->write_bytecode = 1; |
| config->verbose = 0; |
| config->quiet = 0; |
| config->user_site_directory = 1; |
| config->buffered_stdio = 1; |
| config->pathconfig_warnings = 1; |
| #ifdef MS_WINDOWS |
| config->legacy_windows_stdio = 0; |
| #endif |
| } |
| |
| |
| PyStatus |
| PyConfig_InitPythonConfig(PyConfig *config) |
| { |
| config_init_defaults(config); |
| |
| config->_config_init = (int)_PyConfig_INIT_PYTHON; |
| config->configure_c_stdio = 1; |
| config->parse_argv = 1; |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| PyStatus |
| PyConfig_InitIsolatedConfig(PyConfig *config) |
| { |
| config_init_defaults(config); |
| |
| config->_config_init = (int)_PyConfig_INIT_ISOLATED; |
| config->isolated = 1; |
| config->use_environment = 0; |
| config->user_site_directory = 0; |
| config->dev_mode = 0; |
| config->install_signal_handlers = 0; |
| config->use_hash_seed = 0; |
| config->faulthandler = 0; |
| config->tracemalloc = 0; |
| config->pathconfig_warnings = 0; |
| #ifdef MS_WINDOWS |
| config->legacy_windows_stdio = 0; |
| #endif |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| /* Copy str into *config_str (duplicate the string) */ |
| PyStatus |
| PyConfig_SetString(PyConfig *config, wchar_t **config_str, const wchar_t *str) |
| { |
| PyStatus status = _Py_PreInitializeFromConfig(config, NULL); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| wchar_t *str2; |
| if (str != NULL) { |
| str2 = _PyMem_RawWcsdup(str); |
| if (str2 == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| else { |
| str2 = NULL; |
| } |
| PyMem_RawFree(*config_str); |
| *config_str = str2; |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_set_bytes_string(PyConfig *config, wchar_t **config_str, |
| const char *str, const char *decode_err_msg) |
| { |
| PyStatus status = _Py_PreInitializeFromConfig(config, NULL); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| wchar_t *str2; |
| if (str != NULL) { |
| size_t len; |
| str2 = Py_DecodeLocale(str, &len); |
| if (str2 == NULL) { |
| if (len == (size_t)-2) { |
| return _PyStatus_ERR(decode_err_msg); |
| } |
| else { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| } |
| else { |
| str2 = NULL; |
| } |
| PyMem_RawFree(*config_str); |
| *config_str = str2; |
| return _PyStatus_OK(); |
| } |
| |
| |
| #define CONFIG_SET_BYTES_STR(config, config_str, str, NAME) \ |
| config_set_bytes_string(config, config_str, str, "cannot decode " NAME) |
| |
| |
| /* Decode str using Py_DecodeLocale() and set the result into *config_str. |
| Pre-initialize Python if needed to ensure that encodings are properly |
| configured. */ |
| PyStatus |
| PyConfig_SetBytesString(PyConfig *config, wchar_t **config_str, |
| const char *str) |
| { |
| return CONFIG_SET_BYTES_STR(config, config_str, str, "string"); |
| } |
| |
| |
| PyStatus |
| _PyConfig_Copy(PyConfig *config, const PyConfig *config2) |
| { |
| PyStatus status; |
| PyConfig_Clear(config); |
| |
| #define COPY_ATTR(ATTR) config->ATTR = config2->ATTR |
| #define COPY_WSTR_ATTR(ATTR) \ |
| do { \ |
| status = PyConfig_SetString(config, &config->ATTR, config2->ATTR); \ |
| if (_PyStatus_EXCEPTION(status)) { \ |
| return status; \ |
| } \ |
| } while (0) |
| #define COPY_WSTRLIST(LIST) \ |
| do { \ |
| if (_PyWideStringList_Copy(&config->LIST, &config2->LIST) < 0) { \ |
| return _PyStatus_NO_MEMORY(); \ |
| } \ |
| } while (0) |
| |
| COPY_ATTR(_config_init); |
| COPY_ATTR(isolated); |
| COPY_ATTR(use_environment); |
| COPY_ATTR(dev_mode); |
| COPY_ATTR(install_signal_handlers); |
| COPY_ATTR(use_hash_seed); |
| COPY_ATTR(hash_seed); |
| COPY_ATTR(_install_importlib); |
| COPY_ATTR(faulthandler); |
| COPY_ATTR(tracemalloc); |
| COPY_ATTR(import_time); |
| COPY_ATTR(show_ref_count); |
| COPY_ATTR(show_alloc_count); |
| COPY_ATTR(dump_refs); |
| COPY_ATTR(malloc_stats); |
| |
| COPY_WSTR_ATTR(pycache_prefix); |
| COPY_WSTR_ATTR(pythonpath_env); |
| COPY_WSTR_ATTR(home); |
| COPY_WSTR_ATTR(program_name); |
| |
| COPY_ATTR(parse_argv); |
| COPY_WSTRLIST(argv); |
| COPY_WSTRLIST(warnoptions); |
| COPY_WSTRLIST(xoptions); |
| COPY_WSTRLIST(module_search_paths); |
| COPY_ATTR(module_search_paths_set); |
| |
| COPY_WSTR_ATTR(executable); |
| COPY_WSTR_ATTR(base_executable); |
| COPY_WSTR_ATTR(prefix); |
| COPY_WSTR_ATTR(base_prefix); |
| COPY_WSTR_ATTR(exec_prefix); |
| COPY_WSTR_ATTR(base_exec_prefix); |
| |
| COPY_ATTR(site_import); |
| COPY_ATTR(bytes_warning); |
| COPY_ATTR(inspect); |
| COPY_ATTR(interactive); |
| COPY_ATTR(optimization_level); |
| COPY_ATTR(parser_debug); |
| COPY_ATTR(write_bytecode); |
| COPY_ATTR(verbose); |
| COPY_ATTR(quiet); |
| COPY_ATTR(user_site_directory); |
| COPY_ATTR(configure_c_stdio); |
| COPY_ATTR(buffered_stdio); |
| COPY_WSTR_ATTR(filesystem_encoding); |
| COPY_WSTR_ATTR(filesystem_errors); |
| COPY_WSTR_ATTR(stdio_encoding); |
| COPY_WSTR_ATTR(stdio_errors); |
| #ifdef MS_WINDOWS |
| COPY_ATTR(legacy_windows_stdio); |
| #endif |
| COPY_ATTR(skip_source_first_line); |
| COPY_WSTR_ATTR(run_command); |
| COPY_WSTR_ATTR(run_module); |
| COPY_WSTR_ATTR(run_filename); |
| COPY_WSTR_ATTR(check_hash_pycs_mode); |
| COPY_ATTR(pathconfig_warnings); |
| COPY_ATTR(_init_main); |
| |
| #undef COPY_ATTR |
| #undef COPY_WSTR_ATTR |
| #undef COPY_WSTRLIST |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyObject * |
| config_as_dict(const PyConfig *config) |
| { |
| PyObject *dict; |
| |
| dict = PyDict_New(); |
| if (dict == NULL) { |
| return NULL; |
| } |
| |
| #define SET_ITEM(KEY, EXPR) \ |
| do { \ |
| PyObject *obj = (EXPR); \ |
| if (obj == NULL) { \ |
| goto fail; \ |
| } \ |
| int res = PyDict_SetItemString(dict, (KEY), obj); \ |
| Py_DECREF(obj); \ |
| if (res < 0) { \ |
| goto fail; \ |
| } \ |
| } while (0) |
| #define SET_ITEM_INT(ATTR) \ |
| SET_ITEM(#ATTR, PyLong_FromLong(config->ATTR)) |
| #define SET_ITEM_UINT(ATTR) \ |
| SET_ITEM(#ATTR, PyLong_FromUnsignedLong(config->ATTR)) |
| #define FROM_WSTRING(STR) \ |
| ((STR != NULL) ? \ |
| PyUnicode_FromWideChar(STR, -1) \ |
| : (Py_INCREF(Py_None), Py_None)) |
| #define SET_ITEM_WSTR(ATTR) \ |
| SET_ITEM(#ATTR, FROM_WSTRING(config->ATTR)) |
| #define SET_ITEM_WSTRLIST(LIST) \ |
| SET_ITEM(#LIST, _PyWideStringList_AsList(&config->LIST)) |
| |
| SET_ITEM_INT(_config_init); |
| SET_ITEM_INT(isolated); |
| SET_ITEM_INT(use_environment); |
| SET_ITEM_INT(dev_mode); |
| SET_ITEM_INT(install_signal_handlers); |
| SET_ITEM_INT(use_hash_seed); |
| SET_ITEM_UINT(hash_seed); |
| SET_ITEM_INT(faulthandler); |
| SET_ITEM_INT(tracemalloc); |
| SET_ITEM_INT(import_time); |
| SET_ITEM_INT(show_ref_count); |
| SET_ITEM_INT(show_alloc_count); |
| SET_ITEM_INT(dump_refs); |
| SET_ITEM_INT(malloc_stats); |
| SET_ITEM_WSTR(filesystem_encoding); |
| SET_ITEM_WSTR(filesystem_errors); |
| SET_ITEM_WSTR(pycache_prefix); |
| SET_ITEM_WSTR(program_name); |
| SET_ITEM_INT(parse_argv); |
| SET_ITEM_WSTRLIST(argv); |
| SET_ITEM_WSTRLIST(xoptions); |
| SET_ITEM_WSTRLIST(warnoptions); |
| SET_ITEM_WSTR(pythonpath_env); |
| SET_ITEM_WSTR(home); |
| SET_ITEM_WSTRLIST(module_search_paths); |
| SET_ITEM_WSTR(executable); |
| SET_ITEM_WSTR(base_executable); |
| SET_ITEM_WSTR(prefix); |
| SET_ITEM_WSTR(base_prefix); |
| SET_ITEM_WSTR(exec_prefix); |
| SET_ITEM_WSTR(base_exec_prefix); |
| SET_ITEM_INT(site_import); |
| SET_ITEM_INT(bytes_warning); |
| SET_ITEM_INT(inspect); |
| SET_ITEM_INT(interactive); |
| SET_ITEM_INT(optimization_level); |
| SET_ITEM_INT(parser_debug); |
| SET_ITEM_INT(write_bytecode); |
| SET_ITEM_INT(verbose); |
| SET_ITEM_INT(quiet); |
| SET_ITEM_INT(user_site_directory); |
| SET_ITEM_INT(configure_c_stdio); |
| SET_ITEM_INT(buffered_stdio); |
| SET_ITEM_WSTR(stdio_encoding); |
| SET_ITEM_WSTR(stdio_errors); |
| #ifdef MS_WINDOWS |
| SET_ITEM_INT(legacy_windows_stdio); |
| #endif |
| SET_ITEM_INT(skip_source_first_line); |
| SET_ITEM_WSTR(run_command); |
| SET_ITEM_WSTR(run_module); |
| SET_ITEM_WSTR(run_filename); |
| SET_ITEM_INT(_install_importlib); |
| SET_ITEM_WSTR(check_hash_pycs_mode); |
| SET_ITEM_INT(pathconfig_warnings); |
| SET_ITEM_INT(_init_main); |
| |
| return dict; |
| |
| fail: |
| Py_DECREF(dict); |
| return NULL; |
| |
| #undef FROM_WSTRING |
| #undef SET_ITEM |
| #undef SET_ITEM_INT |
| #undef SET_ITEM_UINT |
| #undef SET_ITEM_WSTR |
| #undef SET_ITEM_WSTRLIST |
| } |
| |
| |
| static const char* |
| config_get_env(const PyConfig *config, const char *name) |
| { |
| return _Py_GetEnv(config->use_environment, name); |
| } |
| |
| |
| /* Get a copy of the environment variable as wchar_t*. |
| Return 0 on success, but *dest can be NULL. |
| Return -1 on memory allocation failure. Return -2 on decoding error. */ |
| static PyStatus |
| config_get_env_dup(PyConfig *config, |
| wchar_t **dest, |
| wchar_t *wname, char *name, |
| const char *decode_err_msg) |
| { |
| assert(*dest == NULL); |
| assert(config->use_environment >= 0); |
| |
| if (!config->use_environment) { |
| *dest = NULL; |
| return _PyStatus_OK(); |
| } |
| |
| #ifdef MS_WINDOWS |
| const wchar_t *var = _wgetenv(wname); |
| if (!var || var[0] == '\0') { |
| *dest = NULL; |
| return _PyStatus_OK(); |
| } |
| |
| return PyConfig_SetString(config, dest, var); |
| #else |
| const char *var = getenv(name); |
| if (!var || var[0] == '\0') { |
| *dest = NULL; |
| return _PyStatus_OK(); |
| } |
| |
| return config_set_bytes_string(config, dest, var, decode_err_msg); |
| #endif |
| } |
| |
| |
| #define CONFIG_GET_ENV_DUP(CONFIG, DEST, WNAME, NAME) \ |
| config_get_env_dup(CONFIG, DEST, WNAME, NAME, "cannot decode " NAME) |
| |
| |
| static void |
| config_get_global_vars(PyConfig *config) |
| { |
| if (config->_config_init != _PyConfig_INIT_COMPAT) { |
| /* Python and Isolated configuration ignore global variables */ |
| return; |
| } |
| |
| #define COPY_FLAG(ATTR, VALUE) \ |
| if (config->ATTR == -1) { \ |
| config->ATTR = VALUE; \ |
| } |
| #define COPY_NOT_FLAG(ATTR, VALUE) \ |
| if (config->ATTR == -1) { \ |
| config->ATTR = !(VALUE); \ |
| } |
| |
| COPY_FLAG(isolated, Py_IsolatedFlag); |
| COPY_NOT_FLAG(use_environment, Py_IgnoreEnvironmentFlag); |
| COPY_FLAG(bytes_warning, Py_BytesWarningFlag); |
| COPY_FLAG(inspect, Py_InspectFlag); |
| COPY_FLAG(interactive, Py_InteractiveFlag); |
| COPY_FLAG(optimization_level, Py_OptimizeFlag); |
| COPY_FLAG(parser_debug, Py_DebugFlag); |
| COPY_FLAG(verbose, Py_VerboseFlag); |
| COPY_FLAG(quiet, Py_QuietFlag); |
| #ifdef MS_WINDOWS |
| COPY_FLAG(legacy_windows_stdio, Py_LegacyWindowsStdioFlag); |
| #endif |
| COPY_NOT_FLAG(pathconfig_warnings, Py_FrozenFlag); |
| |
| COPY_NOT_FLAG(buffered_stdio, Py_UnbufferedStdioFlag); |
| COPY_NOT_FLAG(site_import, Py_NoSiteFlag); |
| COPY_NOT_FLAG(write_bytecode, Py_DontWriteBytecodeFlag); |
| COPY_NOT_FLAG(user_site_directory, Py_NoUserSiteDirectory); |
| |
| #undef COPY_FLAG |
| #undef COPY_NOT_FLAG |
| } |
| |
| |
| /* Set Py_xxx global configuration variables from 'config' configuration. */ |
| static void |
| config_set_global_vars(const PyConfig *config) |
| { |
| #define COPY_FLAG(ATTR, VAR) \ |
| if (config->ATTR != -1) { \ |
| VAR = config->ATTR; \ |
| } |
| #define COPY_NOT_FLAG(ATTR, VAR) \ |
| if (config->ATTR != -1) { \ |
| VAR = !config->ATTR; \ |
| } |
| |
| COPY_FLAG(isolated, Py_IsolatedFlag); |
| COPY_NOT_FLAG(use_environment, Py_IgnoreEnvironmentFlag); |
| COPY_FLAG(bytes_warning, Py_BytesWarningFlag); |
| COPY_FLAG(inspect, Py_InspectFlag); |
| COPY_FLAG(interactive, Py_InteractiveFlag); |
| COPY_FLAG(optimization_level, Py_OptimizeFlag); |
| COPY_FLAG(parser_debug, Py_DebugFlag); |
| COPY_FLAG(verbose, Py_VerboseFlag); |
| COPY_FLAG(quiet, Py_QuietFlag); |
| #ifdef MS_WINDOWS |
| COPY_FLAG(legacy_windows_stdio, Py_LegacyWindowsStdioFlag); |
| #endif |
| COPY_NOT_FLAG(pathconfig_warnings, Py_FrozenFlag); |
| |
| COPY_NOT_FLAG(buffered_stdio, Py_UnbufferedStdioFlag); |
| COPY_NOT_FLAG(site_import, Py_NoSiteFlag); |
| COPY_NOT_FLAG(write_bytecode, Py_DontWriteBytecodeFlag); |
| COPY_NOT_FLAG(user_site_directory, Py_NoUserSiteDirectory); |
| |
| /* Random or non-zero hash seed */ |
| Py_HashRandomizationFlag = (config->use_hash_seed == 0 || |
| config->hash_seed != 0); |
| |
| #undef COPY_FLAG |
| #undef COPY_NOT_FLAG |
| } |
| |
| |
| /* Get the program name: use PYTHONEXECUTABLE and __PYVENV_LAUNCHER__ |
| environment variables on macOS if available. */ |
| static PyStatus |
| config_init_program_name(PyConfig *config) |
| { |
| PyStatus status; |
| |
| /* If Py_SetProgramName() was called, use its value */ |
| const wchar_t *program_name = _Py_path_config.program_name; |
| if (program_name != NULL) { |
| config->program_name = _PyMem_RawWcsdup(program_name); |
| if (config->program_name == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| return _PyStatus_OK(); |
| } |
| |
| #ifdef __APPLE__ |
| /* On MacOS X, when the Python interpreter is embedded in an |
| application bundle, it gets executed by a bootstrapping script |
| that does os.execve() with an argv[0] that's different from the |
| actual Python executable. This is needed to keep the Finder happy, |
| or rather, to work around Apple's overly strict requirements of |
| the process name. However, we still need a usable sys.executable, |
| so the actual executable path is passed in an environment variable. |
| See Lib/plat-mac/bundlebuiler.py for details about the bootstrap |
| script. */ |
| const char *p = config_get_env(config, "PYTHONEXECUTABLE"); |
| if (p != NULL) { |
| status = CONFIG_SET_BYTES_STR(config, &config->program_name, p, |
| "PYTHONEXECUTABLE environment variable"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| return _PyStatus_OK(); |
| } |
| #ifdef WITH_NEXT_FRAMEWORK |
| else { |
| const char* pyvenv_launcher = getenv("__PYVENV_LAUNCHER__"); |
| if (pyvenv_launcher && *pyvenv_launcher) { |
| /* Used by Mac/Tools/pythonw.c to forward |
| * the argv0 of the stub executable |
| */ |
| status = CONFIG_SET_BYTES_STR(config, |
| &config->program_name, |
| pyvenv_launcher, |
| "__PYVENV_LAUNCHER__ environment variable"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| return _PyStatus_OK(); |
| } |
| } |
| #endif /* WITH_NEXT_FRAMEWORK */ |
| #endif /* __APPLE__ */ |
| |
| /* Use argv[0] if available and non-empty */ |
| const PyWideStringList *argv = &config->argv; |
| if (argv->length >= 1 && argv->items[0][0] != L'\0') { |
| config->program_name = _PyMem_RawWcsdup(argv->items[0]); |
| if (config->program_name == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| return _PyStatus_OK(); |
| } |
| |
| /* Last fall back: hardcoded name */ |
| #ifdef MS_WINDOWS |
| const wchar_t *default_program_name = L"python"; |
| #else |
| const wchar_t *default_program_name = L"python3"; |
| #endif |
| status = PyConfig_SetString(config, &config->program_name, |
| default_program_name); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| return _PyStatus_OK(); |
| } |
| |
| static PyStatus |
| config_init_executable(PyConfig *config) |
| { |
| assert(config->executable == NULL); |
| |
| /* If Py_SetProgramFullPath() was called, use its value */ |
| const wchar_t *program_full_path = _Py_path_config.program_full_path; |
| if (program_full_path != NULL) { |
| PyStatus status = PyConfig_SetString(config, |
| &config->executable, |
| program_full_path); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| return _PyStatus_OK(); |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static const wchar_t* |
| config_get_xoption(const PyConfig *config, wchar_t *name) |
| { |
| return _Py_get_xoption(&config->xoptions, name); |
| } |
| |
| |
| static PyStatus |
| config_init_home(PyConfig *config) |
| { |
| assert(config->home == NULL); |
| |
| /* If Py_SetPythonHome() was called, use its value */ |
| wchar_t *home = _Py_path_config.home; |
| if (home) { |
| PyStatus status = PyConfig_SetString(config, &config->home, home); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| return _PyStatus_OK(); |
| } |
| |
| return CONFIG_GET_ENV_DUP(config, &config->home, |
| L"PYTHONHOME", "PYTHONHOME"); |
| } |
| |
| |
| static PyStatus |
| config_init_hash_seed(PyConfig *config) |
| { |
| const char *seed_text = config_get_env(config, "PYTHONHASHSEED"); |
| |
| Py_BUILD_ASSERT(sizeof(_Py_HashSecret_t) == sizeof(_Py_HashSecret.uc)); |
| /* Convert a text seed to a numeric one */ |
| if (seed_text && strcmp(seed_text, "random") != 0) { |
| const char *endptr = seed_text; |
| unsigned long seed; |
| errno = 0; |
| seed = strtoul(seed_text, (char **)&endptr, 10); |
| if (*endptr != '\0' |
| || seed > 4294967295UL |
| || (errno == ERANGE && seed == ULONG_MAX)) |
| { |
| return _PyStatus_ERR("PYTHONHASHSEED must be \"random\" " |
| "or an integer in range [0; 4294967295]"); |
| } |
| /* Use a specific hash */ |
| config->use_hash_seed = 1; |
| config->hash_seed = seed; |
| } |
| else { |
| /* Use a random hash */ |
| config->use_hash_seed = 0; |
| config->hash_seed = 0; |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static int |
| config_wstr_to_int(const wchar_t *wstr, int *result) |
| { |
| const wchar_t *endptr = wstr; |
| errno = 0; |
| long value = wcstol(wstr, (wchar_t **)&endptr, 10); |
| if (*endptr != '\0' || errno == ERANGE) { |
| return -1; |
| } |
| if (value < INT_MIN || value > INT_MAX) { |
| return -1; |
| } |
| |
| *result = (int)value; |
| return 0; |
| } |
| |
| |
| static PyStatus |
| config_read_env_vars(PyConfig *config) |
| { |
| PyStatus status; |
| int use_env = config->use_environment; |
| |
| /* Get environment variables */ |
| _Py_get_env_flag(use_env, &config->parser_debug, "PYTHONDEBUG"); |
| _Py_get_env_flag(use_env, &config->verbose, "PYTHONVERBOSE"); |
| _Py_get_env_flag(use_env, &config->optimization_level, "PYTHONOPTIMIZE"); |
| _Py_get_env_flag(use_env, &config->inspect, "PYTHONINSPECT"); |
| |
| int dont_write_bytecode = 0; |
| _Py_get_env_flag(use_env, &dont_write_bytecode, "PYTHONDONTWRITEBYTECODE"); |
| if (dont_write_bytecode) { |
| config->write_bytecode = 0; |
| } |
| |
| int no_user_site_directory = 0; |
| _Py_get_env_flag(use_env, &no_user_site_directory, "PYTHONNOUSERSITE"); |
| if (no_user_site_directory) { |
| config->user_site_directory = 0; |
| } |
| |
| int unbuffered_stdio = 0; |
| _Py_get_env_flag(use_env, &unbuffered_stdio, "PYTHONUNBUFFERED"); |
| if (unbuffered_stdio) { |
| config->buffered_stdio = 0; |
| } |
| |
| #ifdef MS_WINDOWS |
| _Py_get_env_flag(use_env, &config->legacy_windows_stdio, |
| "PYTHONLEGACYWINDOWSSTDIO"); |
| #endif |
| |
| if (config_get_env(config, "PYTHONDUMPREFS")) { |
| config->dump_refs = 1; |
| } |
| if (config_get_env(config, "PYTHONMALLOCSTATS")) { |
| config->malloc_stats = 1; |
| } |
| |
| if (config->pythonpath_env == NULL) { |
| status = CONFIG_GET_ENV_DUP(config, &config->pythonpath_env, |
| L"PYTHONPATH", "PYTHONPATH"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->use_hash_seed < 0) { |
| status = config_init_hash_seed(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_init_tracemalloc(PyConfig *config) |
| { |
| int nframe; |
| int valid; |
| |
| const char *env = config_get_env(config, "PYTHONTRACEMALLOC"); |
| if (env) { |
| if (!_Py_str_to_int(env, &nframe)) { |
| valid = (nframe >= 0); |
| } |
| else { |
| valid = 0; |
| } |
| if (!valid) { |
| return _PyStatus_ERR("PYTHONTRACEMALLOC: invalid number of frames"); |
| } |
| config->tracemalloc = nframe; |
| } |
| |
| const wchar_t *xoption = config_get_xoption(config, L"tracemalloc"); |
| if (xoption) { |
| const wchar_t *sep = wcschr(xoption, L'='); |
| if (sep) { |
| if (!config_wstr_to_int(sep + 1, &nframe)) { |
| valid = (nframe >= 0); |
| } |
| else { |
| valid = 0; |
| } |
| if (!valid) { |
| return _PyStatus_ERR("-X tracemalloc=NFRAME: " |
| "invalid number of frames"); |
| } |
| } |
| else { |
| /* -X tracemalloc behaves as -X tracemalloc=1 */ |
| nframe = 1; |
| } |
| config->tracemalloc = nframe; |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_init_pycache_prefix(PyConfig *config) |
| { |
| assert(config->pycache_prefix == NULL); |
| |
| const wchar_t *xoption = config_get_xoption(config, L"pycache_prefix"); |
| if (xoption) { |
| const wchar_t *sep = wcschr(xoption, L'='); |
| if (sep && wcslen(sep) > 1) { |
| config->pycache_prefix = _PyMem_RawWcsdup(sep + 1); |
| if (config->pycache_prefix == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| else { |
| // PYTHONPYCACHEPREFIX env var ignored |
| // if "-X pycache_prefix=" option is used |
| config->pycache_prefix = NULL; |
| } |
| return _PyStatus_OK(); |
| } |
| |
| return CONFIG_GET_ENV_DUP(config, &config->pycache_prefix, |
| L"PYTHONPYCACHEPREFIX", |
| "PYTHONPYCACHEPREFIX"); |
| } |
| |
| |
| static PyStatus |
| config_read_complex_options(PyConfig *config) |
| { |
| /* More complex options configured by env var and -X option */ |
| if (config->faulthandler < 0) { |
| if (config_get_env(config, "PYTHONFAULTHANDLER") |
| || config_get_xoption(config, L"faulthandler")) { |
| config->faulthandler = 1; |
| } |
| } |
| if (config_get_env(config, "PYTHONPROFILEIMPORTTIME") |
| || config_get_xoption(config, L"importtime")) { |
| config->import_time = 1; |
| } |
| |
| PyStatus status; |
| if (config->tracemalloc < 0) { |
| status = config_init_tracemalloc(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->pycache_prefix == NULL) { |
| status = config_init_pycache_prefix(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static const wchar_t * |
| config_get_stdio_errors(const PyConfig *config) |
| { |
| #ifndef MS_WINDOWS |
| const char *loc = setlocale(LC_CTYPE, NULL); |
| if (loc != NULL) { |
| /* surrogateescape is the default in the legacy C and POSIX locales */ |
| if (strcmp(loc, "C") == 0 || strcmp(loc, "POSIX") == 0) { |
| return L"surrogateescape"; |
| } |
| |
| #ifdef PY_COERCE_C_LOCALE |
| /* surrogateescape is the default in locale coercion target locales */ |
| if (_Py_IsLocaleCoercionTarget(loc)) { |
| return L"surrogateescape"; |
| } |
| #endif |
| } |
| |
| return L"strict"; |
| #else |
| /* On Windows, always use surrogateescape by default */ |
| return L"surrogateescape"; |
| #endif |
| } |
| |
| |
| static PyStatus |
| config_get_locale_encoding(PyConfig *config, wchar_t **locale_encoding) |
| { |
| #ifdef MS_WINDOWS |
| char encoding[20]; |
| PyOS_snprintf(encoding, sizeof(encoding), "cp%u", GetACP()); |
| return PyConfig_SetBytesString(config, locale_encoding, encoding); |
| #elif defined(_Py_FORCE_UTF8_LOCALE) |
| return PyConfig_SetString(config, locale_encoding, L"utf-8"); |
| #else |
| const char *encoding = nl_langinfo(CODESET); |
| if (!encoding || encoding[0] == '\0') { |
| return _PyStatus_ERR("failed to get the locale encoding: " |
| "nl_langinfo(CODESET) failed"); |
| } |
| /* nl_langinfo(CODESET) is decoded by Py_DecodeLocale() */ |
| return CONFIG_SET_BYTES_STR(config, |
| locale_encoding, encoding, |
| "nl_langinfo(CODESET)"); |
| #endif |
| } |
| |
| |
| static PyStatus |
| config_init_stdio_encoding(PyConfig *config, |
| const PyPreConfig *preconfig) |
| { |
| PyStatus status; |
| |
| /* If Py_SetStandardStreamEncoding() have been called, use these |
| parameters. */ |
| if (config->stdio_encoding == NULL && _Py_StandardStreamEncoding != NULL) { |
| status = CONFIG_SET_BYTES_STR(config, &config->stdio_encoding, |
| _Py_StandardStreamEncoding, |
| "_Py_StandardStreamEncoding"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->stdio_errors == NULL && _Py_StandardStreamErrors != NULL) { |
| status = CONFIG_SET_BYTES_STR(config, &config->stdio_errors, |
| _Py_StandardStreamErrors, |
| "_Py_StandardStreamErrors"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->stdio_encoding != NULL && config->stdio_errors != NULL) { |
| return _PyStatus_OK(); |
| } |
| |
| /* PYTHONIOENCODING environment variable */ |
| const char *opt = config_get_env(config, "PYTHONIOENCODING"); |
| if (opt) { |
| char *pythonioencoding = _PyMem_RawStrdup(opt); |
| if (pythonioencoding == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| |
| char *errors = strchr(pythonioencoding, ':'); |
| if (errors) { |
| *errors = '\0'; |
| errors++; |
| if (!errors[0]) { |
| errors = NULL; |
| } |
| } |
| |
| /* Does PYTHONIOENCODING contain an encoding? */ |
| if (pythonioencoding[0]) { |
| if (config->stdio_encoding == NULL) { |
| status = CONFIG_SET_BYTES_STR(config, &config->stdio_encoding, |
| pythonioencoding, |
| "PYTHONIOENCODING environment variable"); |
| if (_PyStatus_EXCEPTION(status)) { |
| PyMem_RawFree(pythonioencoding); |
| return status; |
| } |
| } |
| |
| /* If the encoding is set but not the error handler, |
| use "strict" error handler by default. |
| PYTHONIOENCODING=latin1 behaves as |
| PYTHONIOENCODING=latin1:strict. */ |
| if (!errors) { |
| errors = "strict"; |
| } |
| } |
| |
| if (config->stdio_errors == NULL && errors != NULL) { |
| status = CONFIG_SET_BYTES_STR(config, &config->stdio_errors, |
| errors, |
| "PYTHONIOENCODING environment variable"); |
| if (_PyStatus_EXCEPTION(status)) { |
| PyMem_RawFree(pythonioencoding); |
| return status; |
| } |
| } |
| |
| PyMem_RawFree(pythonioencoding); |
| } |
| |
| /* UTF-8 Mode uses UTF-8/surrogateescape */ |
| if (preconfig->utf8_mode) { |
| if (config->stdio_encoding == NULL) { |
| status = PyConfig_SetString(config, &config->stdio_encoding, |
| L"utf-8"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| if (config->stdio_errors == NULL) { |
| status = PyConfig_SetString(config, &config->stdio_errors, |
| L"surrogateescape"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| } |
| |
| /* Choose the default error handler based on the current locale. */ |
| if (config->stdio_encoding == NULL) { |
| status = config_get_locale_encoding(config, &config->stdio_encoding); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| if (config->stdio_errors == NULL) { |
| const wchar_t *errors = config_get_stdio_errors(config); |
| assert(errors != NULL); |
| |
| status = PyConfig_SetString(config, &config->stdio_errors, errors); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_init_fs_encoding(PyConfig *config, const PyPreConfig *preconfig) |
| { |
| PyStatus status; |
| |
| if (config->filesystem_encoding == NULL) { |
| #ifdef _Py_FORCE_UTF8_FS_ENCODING |
| status = PyConfig_SetString(config, &config->filesystem_encoding, L"utf-8"); |
| #else |
| |
| #ifdef MS_WINDOWS |
| if (preconfig->legacy_windows_fs_encoding) { |
| /* Legacy Windows filesystem encoding: mbcs/replace */ |
| status = PyConfig_SetString(config, &config->filesystem_encoding, |
| L"mbcs"); |
| } |
| else |
| #endif |
| if (preconfig->utf8_mode) { |
| status = PyConfig_SetString(config, &config->filesystem_encoding, |
| L"utf-8"); |
| } |
| #ifndef MS_WINDOWS |
| else if (_Py_GetForceASCII()) { |
| status = PyConfig_SetString(config, &config->filesystem_encoding, |
| L"ascii"); |
| } |
| #endif |
| else { |
| #ifdef MS_WINDOWS |
| /* Windows defaults to utf-8/surrogatepass (PEP 529). */ |
| status = PyConfig_SetString(config, &config->filesystem_encoding, |
| L"utf-8"); |
| #else |
| status = config_get_locale_encoding(config, |
| &config->filesystem_encoding); |
| #endif |
| } |
| #endif /* !_Py_FORCE_UTF8_FS_ENCODING */ |
| |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->filesystem_errors == NULL) { |
| const wchar_t *errors; |
| #ifdef MS_WINDOWS |
| if (preconfig->legacy_windows_fs_encoding) { |
| errors = L"replace"; |
| } |
| else { |
| errors = L"surrogatepass"; |
| } |
| #else |
| errors = L"surrogateescape"; |
| #endif |
| status = PyConfig_SetString(config, &config->filesystem_errors, errors); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_read(PyConfig *config) |
| { |
| PyStatus status; |
| const PyPreConfig *preconfig = &_PyRuntime.preconfig; |
| |
| if (config->use_environment) { |
| status = config_read_env_vars(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| /* -X options */ |
| if (config_get_xoption(config, L"showrefcount")) { |
| config->show_ref_count = 1; |
| } |
| if (config_get_xoption(config, L"showalloccount")) { |
| config->show_alloc_count = 1; |
| } |
| |
| status = config_read_complex_options(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| if (config->home == NULL) { |
| status = config_init_home(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->executable == NULL) { |
| status = config_init_executable(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->_install_importlib) { |
| status = _PyConfig_InitPathConfig(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| /* default values */ |
| if (config->dev_mode) { |
| if (config->faulthandler < 0) { |
| config->faulthandler = 1; |
| } |
| } |
| if (config->faulthandler < 0) { |
| config->faulthandler = 0; |
| } |
| if (config->tracemalloc < 0) { |
| config->tracemalloc = 0; |
| } |
| if (config->use_hash_seed < 0) { |
| config->use_hash_seed = 0; |
| config->hash_seed = 0; |
| } |
| |
| if (config->filesystem_encoding == NULL || config->filesystem_errors == NULL) { |
| status = config_init_fs_encoding(config, preconfig); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| status = config_init_stdio_encoding(config, preconfig); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| if (config->argv.length < 1) { |
| /* Ensure at least one (empty) argument is seen */ |
| status = PyWideStringList_Append(&config->argv, L""); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->check_hash_pycs_mode == NULL) { |
| status = PyConfig_SetString(config, &config->check_hash_pycs_mode, |
| L"default"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->configure_c_stdio < 0) { |
| config->configure_c_stdio = 1; |
| } |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| static void |
| config_init_stdio(const PyConfig *config) |
| { |
| #if defined(MS_WINDOWS) || defined(__CYGWIN__) |
| /* don't translate newlines (\r\n <=> \n) */ |
| _setmode(fileno(stdin), O_BINARY); |
| _setmode(fileno(stdout), O_BINARY); |
| _setmode(fileno(stderr), O_BINARY); |
| #endif |
| |
| if (!config->buffered_stdio) { |
| #ifdef HAVE_SETVBUF |
| setvbuf(stdin, (char *)NULL, _IONBF, BUFSIZ); |
| setvbuf(stdout, (char *)NULL, _IONBF, BUFSIZ); |
| setvbuf(stderr, (char *)NULL, _IONBF, BUFSIZ); |
| #else /* !HAVE_SETVBUF */ |
| setbuf(stdin, (char *)NULL); |
| setbuf(stdout, (char *)NULL); |
| setbuf(stderr, (char *)NULL); |
| #endif /* !HAVE_SETVBUF */ |
| } |
| else if (config->interactive) { |
| #ifdef MS_WINDOWS |
| /* Doesn't have to have line-buffered -- use unbuffered */ |
| /* Any set[v]buf(stdin, ...) screws up Tkinter :-( */ |
| setvbuf(stdout, (char *)NULL, _IONBF, BUFSIZ); |
| #else /* !MS_WINDOWS */ |
| #ifdef HAVE_SETVBUF |
| setvbuf(stdin, (char *)NULL, _IOLBF, BUFSIZ); |
| setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ); |
| #endif /* HAVE_SETVBUF */ |
| #endif /* !MS_WINDOWS */ |
| /* Leave stderr alone - it should be unbuffered anyway. */ |
| } |
| } |
| |
| |
| /* Write the configuration: |
| |
| - set Py_xxx global configuration variables |
| - initialize C standard streams (stdin, stdout, stderr) */ |
| void |
| _PyConfig_Write(const PyConfig *config, _PyRuntimeState *runtime) |
| { |
| config_set_global_vars(config); |
| |
| if (config->configure_c_stdio) { |
| config_init_stdio(config); |
| } |
| |
| /* Write the new pre-configuration into _PyRuntime */ |
| PyPreConfig *preconfig = &runtime->preconfig; |
| preconfig->isolated = config->isolated; |
| preconfig->use_environment = config->use_environment; |
| preconfig->dev_mode = config->dev_mode; |
| } |
| |
| |
| /* --- PyConfig command line parser -------------------------- */ |
| |
| static void |
| config_usage(int error, const wchar_t* program) |
| { |
| FILE *f = error ? stderr : stdout; |
| |
| fprintf(f, usage_line, program); |
| if (error) |
| fprintf(f, "Try `python -h' for more information.\n"); |
| else { |
| fputs(usage_1, f); |
| fputs(usage_2, f); |
| fputs(usage_3, f); |
| fprintf(f, usage_4, (wint_t)DELIM); |
| fprintf(f, usage_5, (wint_t)DELIM, PYTHONHOMEHELP); |
| fputs(usage_6, f); |
| } |
| } |
| |
| |
| /* Parse the command line arguments */ |
| static PyStatus |
| config_parse_cmdline(PyConfig *config, PyWideStringList *warnoptions, |
| Py_ssize_t *opt_index) |
| { |
| PyStatus status; |
| const PyWideStringList *argv = &config->argv; |
| int print_version = 0; |
| const wchar_t* program = config->program_name; |
| |
| _PyOS_ResetGetOpt(); |
| do { |
| int longindex = -1; |
| int c = _PyOS_GetOpt(argv->length, argv->items, &longindex); |
| if (c == EOF) { |
| break; |
| } |
| |
| if (c == 'c') { |
| if (config->run_command == NULL) { |
| /* -c is the last option; following arguments |
| that look like options are left for the |
| command to interpret. */ |
| size_t len = wcslen(_PyOS_optarg) + 1 + 1; |
| wchar_t *command = PyMem_RawMalloc(sizeof(wchar_t) * len); |
| if (command == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| memcpy(command, _PyOS_optarg, (len - 2) * sizeof(wchar_t)); |
| command[len - 2] = '\n'; |
| command[len - 1] = 0; |
| config->run_command = command; |
| } |
| break; |
| } |
| |
| if (c == 'm') { |
| /* -m is the last option; following arguments |
| that look like options are left for the |
| module to interpret. */ |
| if (config->run_module == NULL) { |
| config->run_module = _PyMem_RawWcsdup(_PyOS_optarg); |
| if (config->run_module == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| break; |
| } |
| |
| switch (c) { |
| case 0: |
| // Handle long option. |
| assert(longindex == 0); // Only one long option now. |
| if (wcscmp(_PyOS_optarg, L"always") == 0 |
| || wcscmp(_PyOS_optarg, L"never") == 0 |
| || wcscmp(_PyOS_optarg, L"default") == 0) |
| { |
| status = PyConfig_SetString(config, &config->check_hash_pycs_mode, |
| _PyOS_optarg); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } else { |
| fprintf(stderr, "--check-hash-based-pycs must be one of " |
| "'default', 'always', or 'never'\n"); |
| config_usage(1, program); |
| return _PyStatus_EXIT(2); |
| } |
| break; |
| |
| case 'b': |
| config->bytes_warning++; |
| break; |
| |
| case 'd': |
| config->parser_debug++; |
| break; |
| |
| case 'i': |
| config->inspect++; |
| config->interactive++; |
| break; |
| |
| case 'E': |
| case 'I': |
| case 'X': |
| /* option handled by _PyPreCmdline_Read() */ |
| break; |
| |
| /* case 'J': reserved for Jython */ |
| |
| case 'O': |
| config->optimization_level++; |
| break; |
| |
| case 'B': |
| config->write_bytecode = 0; |
| break; |
| |
| case 's': |
| config->user_site_directory = 0; |
| break; |
| |
| case 'S': |
| config->site_import = 0; |
| break; |
| |
| case 't': |
| /* ignored for backwards compatibility */ |
| break; |
| |
| case 'u': |
| config->buffered_stdio = 0; |
| break; |
| |
| case 'v': |
| config->verbose++; |
| break; |
| |
| case 'x': |
| config->skip_source_first_line = 1; |
| break; |
| |
| case 'h': |
| case '?': |
| config_usage(0, program); |
| return _PyStatus_EXIT(0); |
| |
| case 'V': |
| print_version++; |
| break; |
| |
| case 'W': |
| status = PyWideStringList_Append(warnoptions, _PyOS_optarg); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| break; |
| |
| case 'q': |
| config->quiet++; |
| break; |
| |
| case 'R': |
| config->use_hash_seed = 0; |
| break; |
| |
| /* This space reserved for other options */ |
| |
| default: |
| /* unknown argument: parsing failed */ |
| config_usage(1, program); |
| return _PyStatus_EXIT(2); |
| } |
| } while (1); |
| |
| if (print_version) { |
| printf("Python %s\n", |
| (print_version >= 2) ? Py_GetVersion() : PY_VERSION); |
| return _PyStatus_EXIT(0); |
| } |
| |
| if (config->run_command == NULL && config->run_module == NULL |
| && _PyOS_optind < argv->length |
| && wcscmp(argv->items[_PyOS_optind], L"-") != 0 |
| && config->run_filename == NULL) |
| { |
| config->run_filename = _PyMem_RawWcsdup(argv->items[_PyOS_optind]); |
| if (config->run_filename == NULL) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| |
| if (config->run_command != NULL || config->run_module != NULL) { |
| /* Backup _PyOS_optind */ |
| _PyOS_optind--; |
| } |
| |
| *opt_index = _PyOS_optind; |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| #ifdef MS_WINDOWS |
| # define WCSTOK wcstok_s |
| #else |
| # define WCSTOK wcstok |
| #endif |
| |
| /* Get warning options from PYTHONWARNINGS environment variable. */ |
| static PyStatus |
| config_init_env_warnoptions(PyConfig *config, PyWideStringList *warnoptions) |
| { |
| PyStatus status; |
| /* CONFIG_GET_ENV_DUP requires dest to be initialized to NULL */ |
| wchar_t *env = NULL; |
| status = CONFIG_GET_ENV_DUP(config, &env, |
| L"PYTHONWARNINGS", "PYTHONWARNINGS"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| /* env var is not set or is empty */ |
| if (env == NULL) { |
| return _PyStatus_OK(); |
| } |
| |
| |
| wchar_t *warning, *context = NULL; |
| for (warning = WCSTOK(env, L",", &context); |
| warning != NULL; |
| warning = WCSTOK(NULL, L",", &context)) |
| { |
| status = PyWideStringList_Append(warnoptions, warning); |
| if (_PyStatus_EXCEPTION(status)) { |
| PyMem_RawFree(env); |
| return status; |
| } |
| } |
| PyMem_RawFree(env); |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_add_warnoption(PyConfig *config, const wchar_t *option) |
| { |
| if (_PyWideStringList_Find(&config->warnoptions, option)) { |
| /* Already present: do nothing */ |
| return _PyStatus_OK(); |
| } |
| return PyWideStringList_Append(&config->warnoptions, option); |
| } |
| |
| |
| static PyStatus |
| config_init_warnoptions(PyConfig *config, |
| const PyWideStringList *cmdline_warnoptions, |
| const PyWideStringList *env_warnoptions) |
| { |
| PyStatus status; |
| |
| /* The priority order for warnings configuration is (highest precedence |
| * first): |
| * |
| * - early PySys_AddWarnOption() calls |
| * - the BytesWarning filter, if needed ('-b', '-bb') |
| * - any '-W' command line options; then |
| * - the 'PYTHONWARNINGS' environment variable; then |
| * - the dev mode filter ('-X dev', 'PYTHONDEVMODE'); then |
| * - any implicit filters added by _warnings.c/warnings.py |
| * |
| * All settings except the last are passed to the warnings module via |
| * the `sys.warnoptions` list. Since the warnings module works on the basis |
| * of "the most recently added filter will be checked first", we add |
| * the lowest precedence entries first so that later entries override them. |
| */ |
| |
| if (config->dev_mode) { |
| status = config_add_warnoption(config, L"default"); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| Py_ssize_t i; |
| const PyWideStringList *options; |
| |
| options = env_warnoptions; |
| for (i = 0; i < options->length; i++) { |
| status = config_add_warnoption(config, options->items[i]); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| options = cmdline_warnoptions; |
| for (i = 0; i < options->length; i++) { |
| status = config_add_warnoption(config, options->items[i]); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| /* If the bytes_warning_flag isn't set, bytesobject.c and bytearrayobject.c |
| * don't even try to emit a warning, so we skip setting the filter in that |
| * case. |
| */ |
| if (config->bytes_warning) { |
| const wchar_t *filter; |
| if (config->bytes_warning> 1) { |
| filter = L"error::BytesWarning"; |
| } |
| else { |
| filter = L"default::BytesWarning"; |
| } |
| status = config_add_warnoption(config, filter); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| /* Handle early PySys_AddWarnOption() calls */ |
| status = _PySys_ReadPreinitWarnOptions(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_update_argv(PyConfig *config, Py_ssize_t opt_index) |
| { |
| const PyWideStringList *cmdline_argv = &config->argv; |
| PyWideStringList config_argv = PyWideStringList_INIT; |
| |
| /* Copy argv to be able to modify it (to force -c/-m) */ |
| if (cmdline_argv->length <= opt_index) { |
| /* Ensure at least one (empty) argument is seen */ |
| PyStatus status = PyWideStringList_Append(&config_argv, L""); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| else { |
| PyWideStringList slice; |
| slice.length = cmdline_argv->length - opt_index; |
| slice.items = &cmdline_argv->items[opt_index]; |
| if (_PyWideStringList_Copy(&config_argv, &slice) < 0) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| assert(config_argv.length >= 1); |
| |
| wchar_t *arg0 = NULL; |
| if (config->run_command != NULL) { |
| /* Force sys.argv[0] = '-c' */ |
| arg0 = L"-c"; |
| } |
| else if (config->run_module != NULL) { |
| /* Force sys.argv[0] = '-m'*/ |
| arg0 = L"-m"; |
| } |
| if (arg0 != NULL) { |
| arg0 = _PyMem_RawWcsdup(arg0); |
| if (arg0 == NULL) { |
| _PyWideStringList_Clear(&config_argv); |
| return _PyStatus_NO_MEMORY(); |
| } |
| |
| PyMem_RawFree(config_argv.items[0]); |
| config_argv.items[0] = arg0; |
| } |
| |
| _PyWideStringList_Clear(&config->argv); |
| config->argv = config_argv; |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| core_read_precmdline(PyConfig *config, _PyPreCmdline *precmdline) |
| { |
| PyStatus status; |
| |
| if (config->parse_argv) { |
| if (_PyWideStringList_Copy(&precmdline->argv, &config->argv) < 0) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| } |
| |
| PyPreConfig preconfig; |
| _PyPreConfig_InitFromPreConfig(&preconfig, &_PyRuntime.preconfig); |
| |
| _PyPreConfig_GetConfig(&preconfig, config); |
| |
| status = _PyPreCmdline_Read(precmdline, &preconfig); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| status = _PyPreCmdline_SetConfig(precmdline, config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| static PyStatus |
| config_read_cmdline(PyConfig *config) |
| { |
| PyStatus status; |
| PyWideStringList cmdline_warnoptions = PyWideStringList_INIT; |
| PyWideStringList env_warnoptions = PyWideStringList_INIT; |
| |
| if (config->parse_argv < 0) { |
| config->parse_argv = 1; |
| } |
| |
| if (config->program_name == NULL) { |
| status = config_init_program_name(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| } |
| |
| if (config->parse_argv) { |
| Py_ssize_t opt_index; |
| status = config_parse_cmdline(config, &cmdline_warnoptions, &opt_index); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| |
| status = config_update_argv(config, opt_index); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| } |
| |
| if (config->use_environment) { |
| status = config_init_env_warnoptions(config, &env_warnoptions); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| } |
| |
| status = config_init_warnoptions(config, |
| &cmdline_warnoptions, |
| &env_warnoptions); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| |
| status = _PyStatus_OK(); |
| |
| done: |
| _PyWideStringList_Clear(&cmdline_warnoptions); |
| _PyWideStringList_Clear(&env_warnoptions); |
| return status; |
| } |
| |
| |
| PyStatus |
| _PyConfig_SetPyArgv(PyConfig *config, const _PyArgv *args) |
| { |
| PyStatus status = _Py_PreInitializeFromConfig(config, args); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| return _PyArgv_AsWstrList(args, &config->argv); |
| } |
| |
| |
| /* Set config.argv: decode argv using Py_DecodeLocale(). Pre-initialize Python |
| if needed to ensure that encodings are properly configured. */ |
| PyStatus |
| PyConfig_SetBytesArgv(PyConfig *config, Py_ssize_t argc, char * const *argv) |
| { |
| _PyArgv args = { |
| .argc = argc, |
| .use_bytes_argv = 1, |
| .bytes_argv = argv, |
| .wchar_argv = NULL}; |
| return _PyConfig_SetPyArgv(config, &args); |
| } |
| |
| |
| PyStatus |
| PyConfig_SetArgv(PyConfig *config, Py_ssize_t argc, wchar_t * const *argv) |
| { |
| _PyArgv args = { |
| .argc = argc, |
| .use_bytes_argv = 0, |
| .bytes_argv = NULL, |
| .wchar_argv = argv}; |
| return _PyConfig_SetPyArgv(config, &args); |
| } |
| |
| |
| PyStatus |
| PyConfig_SetWideStringList(PyConfig *config, PyWideStringList *list, |
| Py_ssize_t length, wchar_t **items) |
| { |
| PyStatus status = _Py_PreInitializeFromConfig(config, NULL); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| PyWideStringList list2 = {.length = length, .items = items}; |
| if (_PyWideStringList_Copy(list, &list2) < 0) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| return _PyStatus_OK(); |
| } |
| |
| |
| /* Read the configuration into PyConfig from: |
| |
| * Command line arguments |
| * Environment variables |
| * Py_xxx global configuration variables |
| |
| The only side effects are to modify config and to call _Py_SetArgcArgv(). */ |
| PyStatus |
| PyConfig_Read(PyConfig *config) |
| { |
| PyStatus status; |
| PyWideStringList orig_argv = PyWideStringList_INIT; |
| |
| status = _Py_PreInitializeFromConfig(config, NULL); |
| if (_PyStatus_EXCEPTION(status)) { |
| return status; |
| } |
| |
| config_get_global_vars(config); |
| |
| if (_PyWideStringList_Copy(&orig_argv, &config->argv) < 0) { |
| return _PyStatus_NO_MEMORY(); |
| } |
| |
| _PyPreCmdline precmdline = _PyPreCmdline_INIT; |
| status = core_read_precmdline(config, &precmdline); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| |
| assert(config->isolated >= 0); |
| if (config->isolated) { |
| config->use_environment = 0; |
| config->user_site_directory = 0; |
| } |
| |
| status = config_read_cmdline(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| |
| /* Handle early PySys_AddXOption() calls */ |
| status = _PySys_ReadPreinitXOptions(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| |
| status = config_read(config); |
| if (_PyStatus_EXCEPTION(status)) { |
| goto done; |
| } |
| |
| if (_Py_SetArgcArgv(orig_argv.length, orig_argv.items) < 0) { |
| status = _PyStatus_NO_MEMORY(); |
| goto done; |
| } |
| |
| /* Check config consistency */ |
| assert(config->isolated >= 0); |
| assert(config->use_environment >= 0); |
| assert(config->dev_mode >= 0); |
| assert(config->install_signal_handlers >= 0); |
| assert(config->use_hash_seed >= 0); |
| assert(config->faulthandler >= 0); |
| assert(config->tracemalloc >= 0); |
| assert(config->site_import >= 0); |
| assert(config->bytes_warning >= 0); |
| assert(config->inspect >= 0); |
| assert(config->interactive >= 0); |
| assert(config->optimization_level >= 0); |
| assert(config->parser_debug >= 0); |
| assert(config->write_bytecode >= 0); |
| assert(config->verbose >= 0); |
| assert(config->quiet >= 0); |
| assert(config->user_site_directory >= 0); |
| assert(config->parse_argv >= 0); |
| assert(config->configure_c_stdio >= 0); |
| assert(config->buffered_stdio >= 0); |
| assert(config->program_name != NULL); |
| assert(_PyWideStringList_CheckConsistency(&config->argv)); |
| /* sys.argv must be non-empty: empty argv is replaced with [''] */ |
| assert(config->argv.length >= 1); |
| assert(_PyWideStringList_CheckConsistency(&config->xoptions)); |
| assert(_PyWideStringList_CheckConsistency(&config->warnoptions)); |
| assert(_PyWideStringList_CheckConsistency(&config->module_search_paths)); |
| if (config->_install_importlib) { |
| assert(config->module_search_paths_set != 0); |
| /* don't check config->module_search_paths */ |
| assert(config->executable != NULL); |
| assert(config->base_executable != NULL); |
| assert(config->prefix != NULL); |
| assert(config->base_prefix != NULL); |
| assert(config->exec_prefix != NULL); |
| assert(config->base_exec_prefix != NULL); |
| } |
| assert(config->filesystem_encoding != NULL); |
| assert(config->filesystem_errors != NULL); |
| assert(config->stdio_encoding != NULL); |
| assert(config->stdio_errors != NULL); |
| #ifdef MS_WINDOWS |
| assert(config->legacy_windows_stdio >= 0); |
| #endif |
| /* -c and -m options are exclusive */ |
| assert(!(config->run_command != NULL && config->run_module != NULL)); |
| assert(config->check_hash_pycs_mode != NULL); |
| assert(config->_install_importlib >= 0); |
| assert(config->pathconfig_warnings >= 0); |
| |
| status = _PyStatus_OK(); |
| |
| done: |
| _PyWideStringList_Clear(&orig_argv); |
| _PyPreCmdline_Clear(&precmdline); |
| return status; |
| } |
| |
| |
| PyObject* |
| _Py_GetConfigsAsDict(void) |
| { |
| PyObject *result = NULL; |
| PyObject *dict = NULL; |
| |
| result = PyDict_New(); |
| if (result == NULL) { |
| goto error; |
| } |
| |
| /* global result */ |
| dict = _Py_GetGlobalVariablesAsDict(); |
| if (dict == NULL) { |
| goto error; |
| } |
| if (PyDict_SetItemString(result, "global_config", dict) < 0) { |
| goto error; |
| } |
| Py_CLEAR(dict); |
| |
| /* pre config */ |
| PyInterpreterState *interp = _PyInterpreterState_Get(); |
| const PyPreConfig *pre_config = &_PyRuntime.preconfig; |
| dict = _PyPreConfig_AsDict(pre_config); |
| if (dict == NULL) { |
| goto error; |
| } |
| if (PyDict_SetItemString(result, "pre_config", dict) < 0) { |
| goto error; |
| } |
| Py_CLEAR(dict); |
| |
| /* core config */ |
| const PyConfig *config = &interp->config; |
| dict = config_as_dict(config); |
| if (dict == NULL) { |
| goto error; |
| } |
| if (PyDict_SetItemString(result, "config", dict) < 0) { |
| goto error; |
| } |
| Py_CLEAR(dict); |
| |
| return result; |
| |
| error: |
| Py_XDECREF(result); |
| Py_XDECREF(dict); |
| return NULL; |
| } |
| |
| |
| static void |
| init_dump_ascii_wstr(const wchar_t *str) |
| { |
| if (str == NULL) { |
| PySys_WriteStderr("(not set)"); |
| return; |
| } |
| |
| PySys_WriteStderr("'"); |
| for (; *str != L'\0'; str++) { |
| wchar_t ch = *str; |
| if (ch == L'\'') { |
| PySys_WriteStderr("\\'"); |
| } else if (0x20 <= ch && ch < 0x7f) { |
| PySys_WriteStderr("%lc", ch); |
| } |
| else if (ch <= 0xff) { |
| PySys_WriteStderr("\\x%02x", ch); |
| } |
| #if SIZEOF_WCHAR_T > 2 |
| else if (ch > 0xffff) { |
| PySys_WriteStderr("\\U%08x", ch); |
| } |
| #endif |
| else { |
| PySys_WriteStderr("\\u%04x", ch); |
| } |
| } |
| PySys_WriteStderr("'"); |
| } |
| |
| |
| /* Dump the Python path configuration into sys.stderr */ |
| void |
| _Py_DumpPathConfig(PyThreadState *tstate) |
| { |
| PyObject *exc_type, *exc_value, *exc_tb; |
| _PyErr_Fetch(tstate, &exc_type, &exc_value, &exc_tb); |
| |
| PySys_WriteStderr("Python path configuration:\n"); |
| |
| #define DUMP_CONFIG(NAME, FIELD) \ |
| do { \ |
| PySys_WriteStderr(" " NAME " = "); \ |
| init_dump_ascii_wstr(config->FIELD); \ |
| PySys_WriteStderr("\n"); \ |
| } while (0) |
| |
| PyConfig *config = &tstate->interp->config; |
| DUMP_CONFIG("PYTHONHOME", home); |
| DUMP_CONFIG("PYTHONPATH", pythonpath_env); |
| DUMP_CONFIG("program name", program_name); |
| PySys_WriteStderr(" isolated = %i\n", config->isolated); |
| PySys_WriteStderr(" environment = %i\n", config->use_environment); |
| PySys_WriteStderr(" user site = %i\n", config->user_site_directory); |
| PySys_WriteStderr(" import site = %i\n", config->site_import); |
| #undef DUMP_CONFIG |
| |
| #define DUMP_SYS(NAME) \ |
| do { \ |
| obj = PySys_GetObject(#NAME); \ |
| PySys_FormatStderr(" sys.%s = ", #NAME); \ |
| if (obj != NULL) { \ |
| PySys_FormatStderr("%A", obj); \ |
| } \ |
| else { \ |
| PySys_WriteStderr("(not set)"); \ |
| } \ |
| PySys_FormatStderr("\n"); \ |
| } while (0) |
| |
| PyObject *obj; |
| DUMP_SYS(_base_executable); |
| DUMP_SYS(base_prefix); |
| DUMP_SYS(base_exec_prefix); |
| DUMP_SYS(executable); |
| DUMP_SYS(prefix); |
| DUMP_SYS(exec_prefix); |
| #undef DUMP_SYS |
| |
| PyObject *sys_path = PySys_GetObject("path"); /* borrowed reference */ |
| if (sys_path != NULL && PyList_Check(sys_path)) { |
| PySys_WriteStderr(" sys.path = [\n"); |
| Py_ssize_t len = PyList_GET_SIZE(sys_path); |
| for (Py_ssize_t i=0; i < len; i++) { |
| PyObject *path = PyList_GET_ITEM(sys_path, i); |
| PySys_FormatStderr(" %A,\n", path); |
| } |
| PySys_WriteStderr(" ]\n"); |
| } |
| |
| _PyErr_Restore(tstate, exc_type, exc_value, exc_tb); |
| } |