cpython/Python/frozenmain.c

/* Python interpreter main program for frozen scripts */

#include "Python.h"
#include <locale.h>

#ifdef MS_WINDOWS
extern void PyWinFreeze_ExeInit(void);
extern void PyWinFreeze_ExeTerm(void);
extern int PyInitFrozenExtensions(void);
#endif

/* Main program */

int
Py_FrozenMain(int argc, char **argv)
{
	char *p;
	int i, n, sts;
	int inspect = 0;
	int unbuffered = 0;
	char *oldloc;
	wchar_t **argv_copy = PyMem_Malloc(sizeof(wchar_t*)*argc);
	/* We need a second copies, as Python might modify the first one. */
	wchar_t **argv_copy2 = PyMem_Malloc(sizeof(wchar_t*)*argc);

	Py_FrozenFlag = 1; /* Suppress errors from getpath.c */

	if ((p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
		inspect = 1;
	if ((p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
		unbuffered = 1;

	if (unbuffered) {
		setbuf(stdin, (char *)NULL);
		setbuf(stdout, (char *)NULL);
		setbuf(stderr, (char *)NULL);
	}

	if (!argv_copy) {
		fprintf(stderr, "out of memory");
		return 1;
	}

	oldloc = setlocale(LC_ALL, NULL);
	setlocale(LC_ALL, "");
	for (i = 0; i < argc; i++) {
#ifdef HAVE_BROKEN_MBSTOWCS
		size_t argsize = strlen(argv[i]);
#else
		size_t argsize = mbstowcs(NULL, argv[i], 0);
#endif
		size_t count;
		if (argsize == (size_t)-1) {
			fprintf(stderr, "Could not convert argument %d to string", i);
			return 1;
		}
		argv_copy[i] = PyMem_Malloc((argsize+1)*sizeof(wchar_t));
		argv_copy2[i] = argv_copy[i];
		if (!argv_copy[i]) {
			fprintf(stderr, "out of memory");
			return 1;
		}
		count = mbstowcs(argv_copy[i], argv[i], argsize+1);
		if (count == (size_t)-1) {
			fprintf(stderr, "Could not convert argument %d to string", i);
			return 1;
		}
	}
	setlocale(LC_ALL, oldloc);

#ifdef MS_WINDOWS
	PyInitFrozenExtensions();
#endif /* MS_WINDOWS */
	Py_SetProgramName(argv_copy[0]);
	Py_Initialize();
#ifdef MS_WINDOWS
	PyWinFreeze_ExeInit();
#endif

	if (Py_VerboseFlag)
		fprintf(stderr, "Python %s\n%s\n",
			Py_GetVersion(), Py_GetCopyright());

	PySys_SetArgv(argc, argv_copy);

	n = PyImport_ImportFrozenModule("__main__");
	if (n == 0)
		Py_FatalError("__main__ not frozen");
	if (n < 0) {
		PyErr_Print();
		sts = 1;
	}
	else
		sts = 0;

	if (inspect && isatty((int)fileno(stdin)))
		sts = PyRun_AnyFile(stdin, "<stdin>") != 0;

#ifdef MS_WINDOWS
	PyWinFreeze_ExeTerm();
#endif
	Py_Finalize();
	for (i = 0; i < argc; i++) {
		PyMem_Free(argv_copy2[i]);
	}
	PyMem_Free(argv_copy);
	PyMem_Free(argv_copy2);
	return sts;
}