acl.c

   1 #include <sys/types.h>
   2 #include <sys/acl.h>
   3
   4 #include <Python.h>
   5
   6 staticforward PyTypeObject ACLType;
   7
   8 typedef struct {
   9     PyObject_HEAD
  10     acl_t ob_acl;
  11 } ACLObject;
  12
  13 static PyObject* new_ACL(PyObject* self, PyObject* args) {
  14     ACLObject* theacl;
  15
  16     if (!PyArg_ParseTuple(args,""))
  17         return NULL;
  18
  19     theacl = PyObject_New(ACLObject, &ACLType);
  20     theacl->ob_acl = acl_init(0);
  21     if(theacl->ob_acl == NULL) {
  22         Py_DECREF(theacl);
  23         return PyErr_SetFromErrno(PyExc_IOError);
  24     }
  25
  26     return (PyObject*)theacl;
  27 }
  28
  29 static void ACL_dealloc(PyObject* obj) {
  30     ACLObject *self = (ACLObject*) obj;
  31     PyObject *err_type, *err_value, *err_traceback;
  32     int have_error = PyErr_Occurred() ? 1 : 0;
  33
  34     if (have_error)
  35         PyErr_Fetch(&err_type, &err_value, &err_traceback);
  36     if(acl_free(self->ob_acl) != 0)
  37         PyErr_WriteUnraisable(obj);
  38     if (have_error)
  39         PyErr_Restore(err_type, err_value, err_traceback);
  40     PyObject_DEL(self);
  41 }
  42
  43 static PyObject* ACL_repr(PyObject *obj) {
  44     char *text;
  45     ACLObject *self = (ACLObject*) obj;
  46     PyObject *ret;
  47
  48     text = acl_to_text(self->ob_acl, NULL);
  49     if(text == NULL) {
  50         return PyErr_SetFromErrno(PyExc_IOError);
  51     }
  52     ret = PyString_FromString(text);
  53     if(acl_free(text) != 0) {
  54         Py_DECREF(ret);
  55         return PyErr_SetFromErrno(PyExc_IOError);
  56     }
  57     return ret;
  58 }
  59
  60 static PyTypeObject ACLType = {
  61     PyObject_HEAD_INIT(NULL)
  62     0,
  63     "ACL",
  64     sizeof(ACLObject),
  65     0,
  66     ACL_dealloc, /*tp_dealloc*/
  67     0,          /*tp_print*/
  68     0,          /*tp_getattr*/
  69     0,          /*tp_setattr*/
  70     0,          /*tp_compare*/
  71     ACL_repr,   /*tp_repr*/
  72     0,          /*tp_as_number*/
  73     0,          /*tp_as_sequence*/
  74     0,          /*tp_as_mapping*/
  75     0,          /*tp_hash */
  76 };
  77
  78 static PyMethodDef acl_methods[] = {
  79     {"ACL", new_ACL, METH_VARARGS, "Create a new ACL object."},
  80     {NULL, NULL, 0, NULL}
  81 };
  82
  83 DL_EXPORT(void) initacl(void) {
  84     ACLType.ob_type = &PyType_Type;
  85
  86     Py_InitModule("acl", acl_methods);
  87 }