srcanamdw/codescanner/pyinstaller/source/common/launch.c
changeset 1 22878952f6e2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srcanamdw/codescanner/pyinstaller/source/common/launch.c	Thu Feb 18 12:29:02 2010 +0530
@@ -0,0 +1,1126 @@
+/*
+ * Launch a python module from an archive.   
+ * Copyright (C) 2005, Giovanni Bajo
+ * Based on previous work under copyright (c) 2002 McMillan Enterprises, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * In addition to the permissions in the GNU General Public License, the
+ * authors give you unlimited permission to link or embed the compiled
+ * version of this file into combinations with other programs, and to
+ * distribute those combinations without any restriction coming from the
+ * use of this file. (The General Public License restrictions do apply in
+ * other respects; for example, they cover modification of the file, and
+ * distribution when not linked into a combine executable.)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+#include <stdio.h>
+#ifdef WIN32
+ #include <windows.h>
+ #include <direct.h>
+ #include <process.h>
+ #include <io.h>
+#else
+ #include <unistd.h>
+ #include <fcntl.h>
+ #include <dirent.h>
+#endif
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "launch.h"
+#ifndef NOZLIB
+#include "zlib.h"
+#endif
+#ifdef WIN32
+/*
+ * Python Entry point declarations (see macros in launch.h).
+ */
+DECLVAR(Py_NoSiteFlag);
+DECLVAR(Py_OptimizeFlag);
+DECLVAR(Py_VerboseFlag);
+DECLPROC(Py_Initialize);
+DECLPROC(Py_Finalize);
+DECLPROC(Py_CompileString);
+DECLPROC(PyImport_ExecCodeModule);
+DECLPROC(PyRun_SimpleString);
+DECLPROC(PySys_SetArgv);
+DECLPROC(Py_SetProgramName);
+DECLPROC(PyImport_ImportModule);
+DECLPROC(PyImport_AddModule);
+DECLPROC(PyObject_SetAttrString);
+DECLPROC(PyList_New);
+DECLPROC(PyList_Append);
+DECLPROC(Py_BuildValue);
+DECLPROC(PyFile_FromString);
+DECLPROC(PyString_FromStringAndSize);
+DECLPROC(PyObject_CallFunction);
+DECLPROC(PyModule_GetDict);
+DECLPROC(PyDict_GetItemString);
+DECLPROC(PyErr_Clear);
+DECLPROC(PyErr_Occurred);
+DECLPROC(PyErr_Print);
+DECLPROC(PyObject_CallObject);
+DECLPROC(PyObject_CallMethod);
+DECLPROC(PySys_AddWarnOption);
+DECLPROC(PyEval_InitThreads);
+DECLPROC(PyEval_AcquireThread);
+DECLPROC(PyEval_ReleaseThread);
+DECLPROC(PyEval_AcquireLock);
+DECLPROC(PyEval_ReleaseLock);
+DECLPROC(PyThreadState_Swap);
+DECLPROC(PyThreadState_New);
+DECLPROC(PyThreadState_Clear);
+DECLPROC(PyThreadState_Delete);
+DECLPROC(PyInterpreterState_New);
+DECLPROC(Py_NewInterpreter);
+DECLPROC(Py_EndInterpreter);
+DECLPROC(PyInt_AsLong);
+DECLPROC(PySys_SetObject);
+#endif
+
+#ifdef WIN32
+#define PATHSEP ";"
+#define SEP "/"
+#else
+#define PATHSEP ":"
+#define SEP "/"
+#endif
+
+/* File Local Variables (all start with f_) */
+static char f_archivename[_MAX_PATH+1];
+static char f_homepath[_MAX_PATH+1];
+static char f_temppath[_MAX_PATH+1] = { '\0' };
+#ifdef WIN32
+static char f_temppathraw[MAX_PATH+1];
+static char f_homepathraw[_MAX_PATH+1];
+#endif
+static char *f_workpath = NULL;
+static FILE *f_fp;
+static int f_pkgstart;
+static TOC *f_tocbuff = NULL;
+static TOC *f_tocend = NULL;
+static COOKIE f_cookie;
+
+unsigned char *extract(TOC *ptoc);
+
+/*
+ * The functions in this file defined in reverse order so that forward 
+ * declarations are not necessary.
+ */
+
+int testTempPath(char *buff)
+{
+	char base[16];
+	int n;
+
+	n = strlen(buff);
+	if ( buff[n-1] == '/' || buff[n-1] == '\\' )
+		sprintf(base, "_MEI%d", getpid());
+	else
+		sprintf(base, "%s_MEI%d", SEP, getpid());
+	strcat(buff, base);
+#ifdef WIN32
+	if (mkdir(buff) == 0) {
+#else
+	if (mkdir(buff, 0700) == 0) {
+#endif
+		strcat(buff, SEP);
+		return 1;
+	}
+	return 0;
+}
+
+void getTempPath(char *buff)
+{
+#ifdef WIN32
+	GetTempPath(MAX_PATH, buff);
+	testTempPath(buff);
+#else
+	static const char *envname[] = {
+		"TMPDIR", "TEMP", "TMP", 0
+	};
+	static const char *dirname[] = {
+		"/tmp", "/var/tmp", "/usr/tmp", 0
+	};
+	int i;
+	char *p;
+	for ( i=0; envname[i]; i++ ) {
+		p = getenv(envname[i]);
+		if (p) {
+			strcpy(buff, p);
+			if (testTempPath(buff))
+				return;
+		}
+	}
+	for ( i=0; dirname[i]; i++ ) {
+		strcpy(buff, dirname[i]);
+		if (testTempPath(buff))
+			return;
+	}
+	buff[0] = '\0';
+#endif
+}
+/*
+ * Set up paths required by rest of this module
+ * Sets f_archivename, f_homepath
+ */
+int setPaths(char const * archivePath, char const * archiveName)
+{
+#ifdef WIN32
+	char *p;
+#endif
+	/* Get the archive Path */
+	strcpy(f_archivename, archivePath);
+	strcat(f_archivename, archiveName);
+
+	/* Set homepath to where the archive is */
+	strcpy(f_homepath, archivePath);
+#ifdef WIN32
+	strcpy(f_homepathraw, archivePath);
+	for ( p = f_homepath; *p; p++ )
+		if (*p == '\\')
+			*p = '/';
+#endif
+
+	return 0;
+}
+
+
+/* 
+ * Open the archive
+ * Sets f_archiveFile, f_pkgstart, f_tocbuff and f_cookie.
+ */
+int openArchive()
+{
+	int filelen;
+
+	/* Physically open the file */
+	f_fp = fopen(f_archivename, "rb");
+	if (f_fp == NULL) {
+		VS("Cannot open archive: ");
+		VS(f_archivename);
+		VS("\n");
+		return -1;
+	}
+
+	/* Seek to the Cookie at the end of the file. */
+	fseek(f_fp, 0, SEEK_END);
+	filelen = ftell(f_fp);
+	if (fseek(f_fp, -(int)sizeof(COOKIE), SEEK_END)) 
+	{
+		VS(f_archivename);
+		VS(" appears to be an invalid archive\n");
+		return -1;
+	}
+
+	/* Read the Cookie, and check its MAGIC bytes */
+	fread(&f_cookie, sizeof(COOKIE), 1, f_fp);
+	if (strncmp(f_cookie.magic, MAGIC, strlen(MAGIC))) 
+	{
+		VS(f_archivename);
+		VS(" has bad magic!\n");
+		return -1;
+	}
+
+	/* From the cookie, calculate the archive start */
+	f_pkgstart = filelen - ntohl(f_cookie.len);
+
+	/* Read in in the table of contents */
+	fseek(f_fp, f_pkgstart + ntohl(f_cookie.TOC), SEEK_SET);
+	f_tocbuff = (TOC *) malloc(ntohl(f_cookie.TOClen));
+	if (f_tocbuff == NULL) 
+	{
+		FATALERROR("Could not allocate buffer for TOC.");
+		return -1;
+	}
+	fread(f_tocbuff, ntohl(f_cookie.TOClen), 1, f_fp);
+	f_tocend = (TOC *) (((char *)f_tocbuff) + ntohl(f_cookie.TOClen));
+
+	/* Check input file is still ok (should be). */
+	if (ferror(f_fp))
+	{
+		FATALERROR("Error on file");
+		return -1;
+	}
+	return 0;
+}
+#ifdef WIN32
+int mapNames(HMODULE dll)
+{
+    /* Get all of the entry points that we are interested in */
+	GETVAR(dll, Py_NoSiteFlag);
+	GETVAR(dll, Py_OptimizeFlag);
+	GETVAR(dll, Py_VerboseFlag);
+	GETPROC(dll, Py_Initialize);
+	GETPROC(dll, Py_Finalize);
+	GETPROC(dll, Py_CompileString);
+	GETPROC(dll, PyImport_ExecCodeModule);
+	GETPROC(dll, PyRun_SimpleString);
+	GETPROC(dll, PySys_SetArgv);
+	GETPROC(dll, Py_SetProgramName);
+	GETPROC(dll, PyImport_ImportModule);
+	GETPROC(dll, PyImport_AddModule);
+	GETPROC(dll, PyObject_SetAttrString);
+	GETPROC(dll, PyList_New);
+	GETPROC(dll, PyList_Append);
+	GETPROC(dll, Py_BuildValue);
+	GETPROC(dll, PyFile_FromString);
+	GETPROC(dll, PyString_FromStringAndSize);
+	GETPROC(dll, PyObject_CallFunction);
+	GETPROC(dll, PyModule_GetDict);
+	GETPROC(dll, PyDict_GetItemString);
+	GETPROC(dll, PyErr_Clear);
+	GETPROC(dll, PyErr_Occurred);
+	GETPROC(dll, PyErr_Print);
+	GETPROC(dll, PyObject_CallObject);
+	GETPROC(dll, PyObject_CallMethod);
+	if (ntohl(f_cookie.pyvers) >= 21) {
+		GETPROC(dll, PySys_AddWarnOption);
+	}
+	GETPROC(dll, PyEval_InitThreads);
+	GETPROC(dll, PyEval_AcquireThread);
+	GETPROC(dll, PyEval_ReleaseThread);
+	GETPROC(dll, PyEval_AcquireLock);
+	GETPROC(dll, PyEval_ReleaseLock);
+	GETPROC(dll, PyThreadState_Swap);
+	GETPROC(dll, PyThreadState_New);
+	GETPROC(dll, PyThreadState_Clear);
+	GETPROC(dll, PyThreadState_Delete);
+	GETPROC(dll, PyInterpreterState_New);
+	GETPROC(dll, Py_NewInterpreter);
+	GETPROC(dll, Py_EndInterpreter);
+	GETPROC(dll, PyErr_Print);
+	GETPROC(dll, PyInt_AsLong);
+	GETPROC(dll, PySys_SetObject);
+	return 0;
+}
+#endif
+/*
+ * Load the Python DLL, and get all of the necessary entry points
+ * Windows only (dynamic load)
+ */
+int loadPython()
+{
+#ifdef WIN32
+	HINSTANCE dll;
+	char dllpath[_MAX_PATH + 1];
+
+	/* Determine the path */
+	sprintf(dllpath, "%spython%02d.dll", f_homepathraw, ntohl(f_cookie.pyvers));
+
+	/* Load the DLL */
+	dll = LoadLibraryEx(dllpath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);  
+	if (dll) {
+		VS(dllpath);
+		VS("\n");
+	}
+	else {
+		sprintf(dllpath, "%spython%02d.dll", f_temppathraw, ntohl(f_cookie.pyvers));
+		dll = LoadLibraryEx(dllpath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH );
+		if (dll) {
+			VS(dllpath); 
+			VS("\n");
+		}
+	}
+	if (dll == 0) {
+		FATALERROR("Error loading Python DLL: ");
+		FATALERROR(dllpath);
+		FATALERROR("\n");
+		return -1;
+	}
+
+	mapNames(dll);
+#endif
+
+	return 0;
+}
+#ifdef WIN32
+/*
+ * use this from a dll instead of loadPython()
+ * it will attach to an existing pythonXX.dll,
+ * or load one if needed.
+ */
+int attachPython(int *loadedNew)
+{
+	HMODULE dll;
+	char nm[_MAX_PATH + 1];
+
+	/* Get python's name */
+	sprintf(nm, "python%02d.dll", ntohl(f_cookie.pyvers));
+
+	/* See if it's loaded */
+	dll = GetModuleHandle(nm);  
+	if (dll == 0) {
+		*loadedNew = 1;
+		return loadPython();
+	}
+	mapNames(dll);
+	*loadedNew = 0;
+	return 0;
+}
+#endif
+
+/*
+ * Return pointer to next toc entry.
+ */
+TOC *incrementTocPtr(TOC* ptoc)
+{
+	TOC *result = (TOC*)((char *)ptoc + ntohl(ptoc->structlen));
+	if (result < f_tocbuff) {
+		FATALERROR("Cannot read Table of Contents.\n");
+		return f_tocend;
+	}
+	return result;
+}
+/*
+ * external API for iterating TOCs
+ */
+TOC *getFirstTocEntry(void)
+{
+	return f_tocbuff;
+}
+TOC *getNextTocEntry(TOC *entry)
+{
+	TOC *rslt = (TOC*)((char *)entry + ntohl(entry->structlen));
+	if (rslt >= f_tocend)
+		return NULL;
+	return rslt;
+}
+/*
+ * A toc entry of type 'o' holds runtime options
+ * toc->name is the arg
+ * this is so you can freeze in command line args to Python
+ */
+int setRuntimeOptions(void)
+{
+	int unbuffered = 0;
+	TOC *ptoc = f_tocbuff;
+	while (ptoc < f_tocend) {
+		if (ptoc->typcd == 'o') {
+			VS(ptoc->name);
+			VS("\n");
+			switch (ptoc->name[0]) {
+			case 'v':
+#if defined  WIN32 
+				*Py_VerboseFlag = 1;
+#else
+				Py_VerboseFlag = 1;
+#endif
+			break;
+			case 'u':
+				unbuffered = 1;
+			break;
+#ifdef HAVE_WARNINGS
+			case 'W':
+				if (ntohl(f_cookie.pyvers) >= 21) {
+					PySys_AddWarnOption(&ptoc->name[2]);
+				}
+			break;
+#endif
+			case 's':
+#if defined  WIN32 
+				*Py_NoSiteFlag = 0;
+#else
+				Py_NoSiteFlag = 0;
+#endif
+			break;
+			case 'O':
+#if defined  WIN32 
+				*Py_OptimizeFlag = 1;
+#else
+				Py_OptimizeFlag = 1;
+#endif
+			break;
+			}
+		}
+		ptoc = incrementTocPtr(ptoc);
+	}
+	if (unbuffered) {
+#ifdef WIN32
+		_setmode(fileno(stdin), O_BINARY);
+		_setmode(fileno(stdout), O_BINARY);
+#else
+		fflush(stdout);
+		fflush(stderr);
+#ifdef HAVE_SETVBUF
+		setvbuf(stdin, (char *)NULL, _IONBF, 0);
+		setvbuf(stdout, (char *)NULL, _IONBF, 0);
+		setvbuf(stderr, (char *)NULL, _IONBF, 0);
+#else
+		setbuf(stdin, (char *)NULL);
+		setbuf(stdout, (char *)NULL);
+		setbuf(stderr, (char *)NULL);
+#endif
+#endif
+	}
+	return 0;
+}
+/*
+ * Start python - return 0 on success
+ */
+int startPython(int argc, char *argv[])
+{
+    /* Set PYTHONPATH so dynamic libs will load */
+	static char pypath[2*_MAX_PATH + 14];
+	int pathlen = 1;
+	int i;
+	char cmd[_MAX_PATH+1+80];
+	char tmp[_MAX_PATH+1];
+	PyObject *py_argv;
+	PyObject *val;
+	PyObject *sys;
+
+	VS("Manipulating evironment\n");
+	if (f_workpath && (strcmp(f_workpath, f_homepath) != 0)) {
+		strcpy(pypath, "PYTHONPATH=");
+		strcat(pypath, f_workpath);
+		pypath[strlen(pypath)-1] = '\0';
+		strcat(pypath, PATHSEP);
+		strcat(pypath, f_homepath);
+		pathlen = 2;
+	}
+	else {
+		/* never extracted anything, or extracted to homepath - homepath will do */
+		strcpy(pypath, "PYTHONPATH=");
+		strcat(pypath, f_homepath);
+	}
+	/* don't chop off SEP if root directory */
+#ifdef WIN32
+	if (strlen(pypath) > 14)
+#else
+	if (strlen(pypath) > 12)
+#endif
+		pypath[strlen(pypath)-1] = '\0';
+
+	putenv(pypath);
+	VS(pypath); 
+	VS("\n");
+	/* Clear out PYTHONHOME to avoid clashing with any installation */
+#ifdef WIN32
+	putenv("PYTHONHOME=");
+#endif
+
+	/* Start python. */
+	/* VS("Loading python\n"); */
+#if defined  WIN32 
+	*Py_NoSiteFlag = 1;	/* maybe changed to 0 by setRuntimeOptions() */
+#else
+	Py_NoSiteFlag = 1;
+#endif
+	setRuntimeOptions();
+#ifdef WIN32
+	Py_SetProgramName(f_archivename); /*XXX*/
+#endif
+	Py_Initialize();
+
+	/* Set sys.path */
+	/* VS("Manipulating Python's sys.path\n"); */
+	strcpy(tmp, f_homepath);
+	tmp[strlen(tmp)-1] = '\0';
+	PyRun_SimpleString("import sys\n");
+	PyRun_SimpleString("while sys.path:\n del sys.path[0]\n");
+	sprintf(cmd, "sys.path.append('%s')", tmp);
+	PyRun_SimpleString (cmd);
+	if (pathlen == 2) {
+		strcpy(tmp, f_workpath);
+		tmp[strlen(tmp)-1] = '\0';
+		sprintf(cmd, "sys.path.insert(0, '%s')", tmp);
+		PyRun_SimpleString(cmd);
+	}
+
+	/* Set argv[0] to be the archiveName */
+	py_argv = PyList_New(0);
+	val = Py_BuildValue("s", f_archivename);
+	PyList_Append(py_argv, val);
+	for (i = 1; i < argc; ++i) {
+		val = Py_BuildValue ("s", argv[i]);
+		PyList_Append (py_argv, val);
+	}
+	sys = PyImport_ImportModule("sys");
+	/* VS("Setting sys.argv\n"); */
+	PyObject_SetAttrString(sys, "argv", py_argv);
+
+	/* Check for a python error */
+	if (PyErr_Occurred())
+	{
+		FATALERROR("Error detected starting Python VM.");
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * Import modules embedded in the archive - return 0 on success
+ */
+int importModules()
+{
+	PyObject *marshal;
+	PyObject *marshaldict;
+	PyObject *loadfunc;
+	PyObject *pyfile;
+	TOC *ptoc;
+	PyObject *co;
+	PyObject *mod;
+	PyObject *res;
+	char buf[32];
+
+	VS("importing modules from CArchive\n"); 
+
+	/* Get the Python function marshall.load
+		* Here we collect some reference to PyObject that we don't dereference
+		* Doesn't matter because the objects won't be going away anyway.
+		*/
+	marshal = PyImport_ImportModule("marshal");
+	marshaldict = PyModule_GetDict(marshal);
+	loadfunc = PyDict_GetItemString(marshaldict, "loads");
+
+	/* Iterate through toc looking for module entries (type 'm')
+		* this is normally just bootstrap stuff (archive and iu)
+		*/
+	ptoc = f_tocbuff;
+	while (ptoc < f_tocend) {
+		if (ptoc->typcd == 'm' || ptoc->typcd == 'M') 
+		{
+			unsigned char *modbuf = extract(ptoc);
+
+			/* .pyc/.pyo files have 8 bytes header. Skip it and get a Python
+			 * string directly pointing at the marshalled code.
+			 */
+			PyObject *mods = PyString_FromStringAndSize(modbuf + 8,
+				ntohl(ptoc->ulen) - 8);
+            
+			VS(ptoc->name);
+			VS("\n");
+			
+			co = PyObject_CallFunction(loadfunc, "O", mods);
+			mod = PyImport_ExecCodeModule(ptoc->name, co);
+
+			/* Check for errors in loading */
+			if (mod == NULL) {
+				FATALERROR("mod is NULL - ");
+				FATALERROR(ptoc->name);
+			}
+			if (PyErr_Occurred())
+			{
+				PyErr_Print();
+				PyErr_Clear();
+			}
+
+			Py_DECREF(mods);
+			free(modbuf);
+		}
+		ptoc = incrementTocPtr(ptoc); 
+	}
+
+	return 0;
+}
+
+
+/* Install a zlib from a toc entry
+ * Return non zero on failure
+ */
+int installZlib(TOC *ptoc)
+{
+	int rc;
+	int zlibpos = f_pkgstart + ntohl(ptoc->pos);
+	char *tmpl = "sys.path.append(r\"%s?%d\")\n";
+	char *cmd = (char *) malloc(strlen(tmpl) + strlen(f_archivename) + 32);
+	sprintf(cmd, tmpl, f_archivename, zlibpos);
+	//VS(cmd);
+	rc = PyRun_SimpleString(cmd);
+	if (rc != 0)
+	{
+		FATALERROR("Error in command.");
+		FATALERROR(cmd);
+		free(cmd);
+		return -1;
+	}
+
+	free(cmd);
+	return 0;
+}
+
+
+/*
+ * Install zlibs 
+ * Return non zero on failure
+ */
+int installZlibs()
+{
+	TOC * ptoc;
+	VS("Installing import hooks\n");
+
+	/* Iterate through toc looking for zlibs (type 'z') */
+	ptoc = f_tocbuff;
+	while (ptoc < f_tocend) {
+		if (ptoc->typcd == 'z') 
+		{
+			VS(ptoc->name);
+			VS("\n");
+			installZlib(ptoc);
+		}
+
+		ptoc = incrementTocPtr(ptoc); 
+	}
+	return 0;
+}
+
+#ifndef NOZLIB
+/* decompress data in buff, described by ptoc
+ * return in malloc'ed buffer (needs to be freed)
+ */
+unsigned char *decompress(unsigned char * buff, TOC *ptoc)
+{
+	const char *ver;
+	unsigned char *out;
+	z_stream zstream;
+	int rc;
+	char msg[400];
+
+	ver = (zlibVersion)();
+	out = (unsigned char *)malloc(ntohl(ptoc->ulen));
+	if (out == NULL) {
+		OTHERERROR("Error allocating decompression buffer\n");
+		return NULL;
+	}
+
+	zstream.zalloc = NULL;
+	zstream.zfree = NULL;
+	zstream.opaque = NULL;
+	zstream.next_in = buff;
+	zstream.avail_in = ntohl(ptoc->len);
+	zstream.next_out = out;
+	zstream.avail_out = ntohl(ptoc->ulen);
+	rc = inflateInit(&zstream);
+	if (rc >= 0) {
+		rc = (inflate)(&zstream, Z_FINISH);
+		if (rc >= 0) {
+			rc = (inflateEnd)(&zstream);
+		}
+		else {
+			sprintf(msg, "Error %d from inflate: %s\n", rc, zstream.msg);
+			OTHERERROR(msg);
+			return NULL;
+		}
+	}
+	else {
+		sprintf(msg, "Error %d from inflateInit: %s\n", rc, zstream.msg);
+		OTHERERROR(msg);
+		return NULL;
+	}	
+	return out;
+}
+#endif
+/* 
+ * extract an archive entry
+ * returns pointer to the data (must be freed)
+ */
+unsigned char *extract(TOC *ptoc)
+{
+	unsigned char *data;
+	unsigned char *tmp;
+	char msg[400];
+
+	sprintf( msg, " extracting %1.20s (%d, %c)\n", ptoc->name, ptoc->cflag, ptoc->typcd);
+	//VS(msg);
+	fseek(f_fp, f_pkgstart + ntohl(ptoc->pos), SEEK_SET);
+	data = (unsigned char *)malloc(ntohl(ptoc->len));
+	if (data == NULL) {
+		OTHERERROR("Could not allocate read buffer\n");
+		return NULL;
+	}
+	fread(data, ntohl(ptoc->len), 1, f_fp);
+	if (ptoc->cflag == '\1') {
+#ifndef NOZLIB
+		tmp = decompress(data, ptoc);
+		free(data);
+		data = tmp;
+		if (data == NULL) {
+			sprintf(msg, "Error decompressing %s\n", ptoc->name);
+			OTHERERROR(msg);
+			return NULL;
+		}
+#else
+		FATALERROR("No ZLIB support but archive uses compression\n");
+		return NULL;
+#endif
+	}
+	return data;
+}
+/*
+ * helper for extract2fs
+ * which may try multiple places
+ */
+FILE *openTarget(char *path, char*name)
+{
+	struct stat sbuf;
+	char fnm[_MAX_PATH+1];
+	strcpy(fnm, path);
+	strcat(fnm, name);
+	if (stat(fnm, &sbuf) == -1) {
+		VS(fnm);
+		VS("\n");
+		return fopen(fnm, "wb");
+	}
+	return NULL;
+}
+/*
+ * extract from the archive
+ * and copy to the filesystem 
+ * relative to the directory the archive's in
+ */
+int extract2fs(TOC *ptoc)
+{
+#ifdef WIN32
+	char *p;
+#endif
+	FILE *out;
+	unsigned char *data = extract(ptoc);
+
+	if (!f_workpath) {
+		getTempPath(f_temppath);
+#ifdef WIN32
+		strcpy(f_temppathraw, f_temppath);
+		for ( p=f_temppath; *p; p++ )
+			if (*p == '\\')
+				*p = '/';
+#endif
+		f_workpath = f_temppath;
+	}
+	out = openTarget(f_workpath, ptoc->name);
+
+	if (out == NULL)  {
+		FATALERROR(ptoc->name);
+		FATALERROR(" could not be extracted!\n");
+	}
+	else {
+		fwrite(data, ntohl(ptoc->ulen), 1, out);
+#ifndef WIN32
+		fchmod(fileno(out), S_IRUSR | S_IWUSR | S_IXUSR);
+#endif
+		fclose(out);
+	}
+	free(data);
+	return 0;
+}
+/*
+ * extract all binaries (type 'b') to the filesystem
+ */
+int extractBinaries(char **workpath)
+{
+	TOC * ptoc = f_tocbuff;
+	workpath[0] = '\0';
+	VS("Extracting binaries\n");
+	while (ptoc < f_tocend) {
+		if (ptoc->typcd == 'b') 
+		if (extract2fs(ptoc))
+		return -1;
+		ptoc = incrementTocPtr(ptoc); 
+	}
+	*workpath = f_workpath;
+	return 0;
+}
+/* 
+ * Run scripts
+ * Return non zero on failure
+ */
+int runScripts()
+{
+	unsigned char *data;
+	int rc = 0;
+	TOC * ptoc = f_tocbuff;
+	char msg[400];
+	VS("Running scripts\n");
+
+	/* Iterate through toc looking for scripts (type 's') */
+	while (ptoc < f_tocend) {
+		if (ptoc->typcd == 's') {
+			/* Get data out of the archive.  */
+			data = extract(ptoc);
+			/* Run it */
+			rc = PyRun_SimpleString(data);
+			/* log errors and abort */
+			if (rc != 0) {
+				sprintf(msg, " RC: %d from %s\n", rc, ptoc->name);
+				VS(msg);
+				return rc;
+			}
+			free(data);
+		}
+
+		ptoc = incrementTocPtr(ptoc); 
+	}
+	return 0;
+}
+
+/* 
+ * call a simple "int func(void)" entry point.  Assumes such a function
+ * exists in the main namespace.
+ * Return non zero on failure, with -2 if the specific error is
+ * that the function does not exist in the namespace.
+ */
+int callSimpleEntryPoint(char *name, int *presult)
+{
+	int rc = -1;
+	/* Objects with no ref. */
+	PyObject *mod, *dict;
+	/* Objects with refs to kill. */
+	PyObject *func = NULL, *pyresult = NULL;
+
+	mod = PyImport_AddModule("__main__"); /* NO ref added */
+	if (!mod) {
+		VS("No __main__\n");
+		goto done;
+	}
+	dict = PyModule_GetDict(mod); /* NO ref added */
+	if (!mod) {
+		VS("No __dict__\n");
+		goto done;
+	}
+	func = PyDict_GetItemString(dict, name);
+	if (func == NULL) { /* should explicitly check KeyError */
+		VS("CallSimpleEntryPoint can't find the function name\n");
+		rc = -2;
+		goto done;
+	}
+	pyresult = PyObject_CallFunction(func, "");
+	if (pyresult==NULL) goto done;
+	PyErr_Clear();
+	*presult = PyInt_AsLong(pyresult);
+	rc = PyErr_Occurred() ? -1 : 0;
+	VS( rc ? "Finished with failure\n" : "Finished OK\n");
+	// all done!
+done:
+	Py_XDECREF(func);
+	Py_XDECREF(pyresult);
+	/* can't leave Python error set, else it may
+	   cause failures in later async code */
+	if (rc)
+		/* But we will print them 'cos they may be useful */
+		PyErr_Print();
+	PyErr_Clear();
+	return rc;
+}
+
+/*
+ * Launch an archive with the given fully-qualified path name
+ * No command line, no extracting of binaries
+ * Designed for embedding situations.
+ */
+int launchembedded(char const * archivePath, char  const * archiveName)
+{
+	char pathnm[_MAX_PATH];
+
+	VS("START\n");
+	strcpy(pathnm, archivePath);
+	strcat(pathnm, archiveName);
+	/* Set up paths */
+	if (setPaths(archivePath, archiveName))
+		return -1;
+	VS("Got Paths\n");
+	/* Open the archive */
+	if (openArchive())
+		return -1;
+	VS("Opened Archive\n");
+	/* Load Python DLL */
+	if (loadPython())
+		return -1;
+
+	/* Start Python with silly command line */
+	if (startPython(1, (char**)&pathnm))
+		return -1;
+	VS("Started Python\n");
+
+	/* a signal to scripts */
+	PyRun_SimpleString("import sys;sys.frozen='dll'\n");
+	VS("set sys.frozen\n");
+	/* Import modules from archive - this is to bootstrap */
+	if (importModules())
+		return -1;
+	VS("Imported Modules\n");
+	/* Install zlibs - now import hooks are in place */
+	if (installZlibs())
+		return -1;
+	VS("Installed Zlibs\n");
+	/* Run scripts */
+	if (runScripts())
+		return -1;
+	VS("All scripts run\n");
+	if (PyErr_Occurred()) {
+		// PyErr_Print();
+		//PyErr_Clear();
+		VS("Some error occurred\n");
+	}
+	VS("OK.\n");
+
+	return 0;
+}
+
+/* for finer grained control */
+/*
+ * initialize (this always needs to be done)
+ */
+int init(char const * archivePath, char  const * archiveName, char const * workpath)
+{
+	char *p;
+
+	if (workpath) {
+		f_workpath = (char *)workpath;
+#ifdef WIN32
+		strcpy(f_temppathraw, f_workpath);
+		for ( p = f_temppathraw; *p; p++ )
+			if (*p == '/')
+				*p = '\\';
+#endif
+	}
+
+	/* Set up paths */
+	if (setPaths(archivePath, archiveName))
+		return -1;
+
+	/* Open the archive */
+	if (openArchive())
+		return -1;
+
+	return 0;
+}
+/* once init'ed, you might want to extractBinaries()
+ * If you do, what comes after is very platform specific.
+ * Once you've taken care of the platform specific details,
+ * or if there are no binaries to extract, you go on
+ * to doIt(), which is the important part
+ */
+int doIt(int argc, char *argv[]) 
+{
+	int rc = 0;
+	/* Load Python DLL */
+	if (loadPython())
+		return -1;
+
+	/* Start Python. */
+	if (startPython(argc, argv))
+		return -1;
+
+	/* Import modules from archive - bootstrap */
+	if (importModules())
+		return -1;
+
+	/* Install zlibs  - now all hooks in place */
+	if (installZlibs())
+		return -1;
+
+	/* Run scripts */
+	rc = runScripts();
+
+	VS("OK.\n");
+
+	return rc;
+}
+void clear(const char *dir);
+#ifdef WIN32
+void removeOne(char *fnm, int pos, struct _finddata_t finfo)
+{
+	if ( strcmp(finfo.name, ".")==0  || strcmp(finfo.name, "..") == 0 )
+		return;
+	fnm[pos] = '\0';
+	strcat(fnm, finfo.name);
+	if ( finfo.attrib & _A_SUBDIR )
+		clear(fnm);
+	else 
+		remove(fnm);
+}
+void clear(const char *dir) 
+{
+	char fnm[_MAX_PATH+1];
+	struct _finddata_t finfo;
+	long h;
+	int dirnmlen;
+	strcpy(fnm, dir);
+	dirnmlen = strlen(fnm);
+	if ( fnm[dirnmlen-1] != '/' && fnm[dirnmlen-1] != '\\' ) {
+		strcat(fnm, "\\");
+		dirnmlen++;
+	}
+	strcat(fnm, "*");
+	h = _findfirst(fnm, &finfo);
+	if (h != -1) {
+		removeOne(fnm, dirnmlen, finfo);
+		while ( _findnext(h, &finfo) == 0 ) 
+			removeOne(fnm, dirnmlen, finfo);
+		_findclose(h);
+	}
+	rmdir(dir);
+}
+#else
+void removeOne(char *pnm, int pos, const char *fnm)
+{
+	struct stat sbuf;
+	if ( strcmp(fnm, ".")==0  || strcmp(fnm, "..") == 0 )
+		return;
+	pnm[pos] = '\0';
+	strcat(pnm, fnm);
+	if ( stat(pnm, &sbuf) == 0 ) {
+		if ( S_ISDIR(sbuf.st_mode) )
+			clear(pnm);
+		else 
+			unlink(pnm);
+	}
+}
+void clear(const char *dir) 
+{
+	char fnm[_MAX_PATH+1];
+	DIR *ds;
+	struct dirent *finfo;
+	int dirnmlen;
+
+	strcpy(fnm, dir);
+	dirnmlen = strlen(fnm);
+	if ( fnm[dirnmlen-1] != '/' ) {
+		strcat(fnm, "/");
+		dirnmlen++;
+	}
+	ds = opendir(dir);
+	finfo = readdir(ds);
+	while (finfo) {
+		removeOne(fnm, dirnmlen, finfo->d_name);
+		finfo = readdir(ds);
+	}
+	closedir(ds);
+	rmdir(dir);
+}
+#endif
+
+/*
+ * If binaries were extracted, this should be called
+ * to remove them
+ */
+void cleanUp()
+{
+	if (f_temppath[0])
+		clear(f_temppath);
+}
+/*
+ * Helpers for embedders
+ */
+int getPyVersion(void)
+{
+	return ntohl(f_cookie.pyvers);
+}
+void finalizePython(void)
+{
+	Py_Finalize();
+}
+