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/*
* A Python binding for cracklib.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include PYTHON_H
#ifdef HAVE_PTHREAD_H
#include <pthread.h>
#endif
#include "../lib/crack.h"
#ifdef HAVE_PTHREAD_H
static pthread_mutex_t cracklib_mutex = PTHREAD_MUTEX_INITIALIZER;
#define LOCK() pthread_mutex_lock(&cracklib_mutex)
#define UNLOCK() pthread_mutex_unlock(&cracklib_mutex)
#else
#define LOCK()
#define UNLOCK()
#endif
#define DICT_SUFFIX ".pwd"
static PyObject *
cracklib_FascistCheck(PyObject *self, PyObject *args, PyObject *kwargs)
{
int i;
char *candidate, *dict;
const char *result;
struct stat st;
char *keywords[] = {"pw", "dictpath", NULL};
char *dictfile;
self = NULL;
candidate = NULL;
dict = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|s", keywords,
&candidate, &dict))
{
PyErr_SetString(PyExc_ValueError, "error parsing arguments");
return NULL;
}
if (candidate == NULL)
{
PyErr_SetString(PyExc_ValueError, "first argument was not a string!");
return NULL;
}
if (dict != NULL)
{
if (dict[0] != '/')
{
PyErr_SetString(PyExc_ValueError,
"second argument was not an absolute path!");
return NULL;
}
dictfile = malloc(strlen(dict) + sizeof(DICT_SUFFIX));
if (dictfile == NULL)
{
PyErr_SetFromErrnoWithFilename(PyExc_OSError, dict);
return NULL;
}
sprintf(dictfile, "%s" DICT_SUFFIX, dict);
if (lstat(dictfile, &st) == -1)
{
PyErr_SetFromErrnoWithFilename(PyExc_OSError, dict);
free(dictfile);
return NULL;
}
free(dictfile);
} else
{
if (lstat(DEFAULT_CRACKLIB_DICT DICT_SUFFIX, &st) == -1)
{
PyErr_SetFromErrnoWithFilename(PyExc_OSError,
DEFAULT_CRACKLIB_DICT);
return NULL;
}
}
LOCK();
result = FascistCheck(candidate, dict ? dict : DEFAULT_CRACKLIB_DICT);
UNLOCK();
if (result != NULL)
{
return PyString_FromString(result);
} else
{
Py_INCREF(Py_None);
return Py_None;
}
}
static PyMethodDef
cracklibmethods[] =
{
{"FascistCheck", cracklib_FascistCheck, METH_VARARGS | METH_KEYWORDS},
{NULL, NULL},
};
void
initcracklib(void)
{
Py_InitModule("cracklib", cracklibmethods);
}
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