/* UNIX shadow password file access module *//* A lot of code has been taken from pwdmodule.c *//* For info also see http://www.unixpapa.com/incnote/passwd.html */ #include "Python.h"#include "structseq.h" #include <sys/types.h>#ifdef HAVE_SHADOW_H#include <shadow.h>#endif  PyDoc_STRVAR(spwd__doc__,"This module provides access to the Unix shadow password database.\n\It is available on various Unix versions.\n\\n\Shadow password database entries are reported as 9-tuples of type struct_spwd,\n\containing the following items from the password database (see `<shadow.h>'):\n\sp_namp, sp_pwdp, sp_lstchg, sp_min, sp_max, sp_warn, sp_inact, sp_expire, sp_flag.\n\The sp_namp and sp_pwdp are strings, the rest are integers.\n\An exception is raised if the entry asked for cannot be found.\n\You have to be root to be able to use this module.");  #if defined(HAVE_GETSPNAM) || defined(HAVE_GETSPENT) static PyStructSequence_Field struct_spwd_type_fields[] = {	{"sp_nam", "login name"},	{"sp_pwd", "encrypted password"},	{"sp_lstchg", "date of last change"},	{"sp_min", "min #days between changes"}, 	{"sp_max", "max #days between changes"}, 	{"sp_warn", "#days before pw expires to warn user about it"}, 	{"sp_inact", "#days after pw expires until account is blocked"},	{"sp_expire", "#days since 1970-01-01 until account is disabled"},	{"sp_flag", "reserved"},	{0}}; PyDoc_STRVAR(struct_spwd__doc__,"spwd.struct_spwd: Results from getsp*() routines.\n\n\This object may be accessed either as a 9-tuple of\n\  (sp_nam,sp_pwd,sp_lstchg,sp_min,sp_max,sp_warn,sp_inact,sp_expire,sp_flag)\n\or via the object attributes as named in the above tuple."); static PyStructSequence_Desc struct_spwd_type_desc = {	"spwd.struct_spwd",	struct_spwd__doc__,	struct_spwd_type_fields,	9,}; static int initialized;static PyTypeObject StructSpwdType;  static voidsets(PyObject *v, int i, char* val){  if (val)	  PyStructSequence_SET_ITEM(v, i, PyString_FromString(val));  else {	  PyStructSequence_SET_ITEM(v, i, Py_None);	  Py_INCREF(Py_None);  }} static PyObject *mkspent(struct spwd *p){	int setIndex = 0;	PyObject *v = PyStructSequence_New(&StructSpwdType);	if (v == NULL)		return NULL; #define SETI(i,val) PyStructSequence_SET_ITEM(v, i, PyInt_FromLong((long) val))#define SETS(i,val) sets(v, i, val) 	SETS(setIndex++, p->sp_namp);	SETS(setIndex++, p->sp_pwdp);	SETI(setIndex++, p->sp_lstchg);	SETI(setIndex++, p->sp_min);	SETI(setIndex++, p->sp_max);	SETI(setIndex++, p->sp_warn);	SETI(setIndex++, p->sp_inact);	SETI(setIndex++, p->sp_expire);	SETI(setIndex++, p->sp_flag); #undef SETS#undef SETI 	if (PyErr_Occurred()) {		Py_DECREF(v);		return NULL;	} 	return v;} #endif  /* HAVE_GETSPNAM || HAVE_GETSPENT */  #ifdef HAVE_GETSPNAM PyDoc_STRVAR(spwd_getspnam__doc__,"getspnam(name) -> (sp_namp, sp_pwdp, sp_lstchg, sp_min, sp_max,\n\                    sp_warn, sp_inact, sp_expire, sp_flag)\n\Return the shadow password database entry for the given user name.\n\See spwd.__doc__ for more on shadow password database entries."); static PyObject* spwd_getspnam(PyObject *self, PyObject *args){	char *name;	struct spwd *p;	if (!PyArg_ParseTuple(args, "s:getspnam", &name))		return NULL;	if ((p = getspnam(name)) == NULL) {		PyErr_SetString(PyExc_KeyError, "getspnam(): name not found");		return NULL;	}	return mkspent(p);} #endif /* HAVE_GETSPNAM */ #ifdef HAVE_GETSPENT PyDoc_STRVAR(spwd_getspall__doc__,"getspall() -> list_of_entries\n\Return a list of all available shadow password database entries, \in arbitrary order.\n\See spwd.__doc__ for more on shadow password database entries."); static PyObject *spwd_getspall(PyObject *self, PyObject *args){	PyObject *d;	struct spwd *p;	if ((d = PyList_New(0)) == NULL)		return NULL;	setspent();	while ((p = getspent()) != NULL) {		PyObject *v = mkspent(p);		if (v == NULL || PyList_Append(d, v) != 0) {			Py_XDECREF(v);			Py_DECREF(d);			endspent();			return NULL;		}		Py_DECREF(v);	}	endspent();	return d;} #endif /* HAVE_GETSPENT */ static PyMethodDef spwd_methods[] = {#ifdef HAVE_GETSPNAM		{"getspnam",	spwd_getspnam, METH_VARARGS, spwd_getspnam__doc__},#endif#ifdef HAVE_GETSPENT	{"getspall",	spwd_getspall, METH_NOARGS, spwd_getspall__doc__},#endif	{NULL,		NULL}		/* sentinel */};  PyMODINIT_FUNCinitspwd(void){	PyObject *m;	m=Py_InitModule3("spwd", spwd_methods, spwd__doc__);	if (m == NULL)		return;	if (!initialized)		PyStructSequence_InitType(&StructSpwdType, 					  &struct_spwd_type_desc);	Py_INCREF((PyObject *) &StructSpwdType);	PyModule_AddObject(m, "struct_spwd", (PyObject *) &StructSpwdType);	initialized = 1;}