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/*
* util.h
*
* Copyright (C) AB Strakt
* See LICENSE for details.
*
* Export utility functions and macros.
* See the file RATIONALE for a short explanation of why this module was written.
*
* Reviewed 2001-07-23
*
*/
#ifndef PyOpenSSL_UTIL_H_
#define PyOpenSSL_UTIL_H_
#include <Python.h>
#include <openssl/err.h>
/*
* pymemcompat written by Michael Hudson and lets you program to the
* Python 2.3 memory API while keeping backwards compatibility.
*/
#include "pymemcompat.h"
/*
* py3k defines macros that help with Python 2.x/3.x compatibility.
*/
#include "py3k.h"
extern PyObject *error_queue_to_list(void);
extern void exception_from_error_queue(PyObject *the_Error);
extern void flush_error_queue(void);
/*
* These are needed because there is no "official" way to specify
* WHERE to save the thread state.
*/
#ifdef WITH_THREAD
/*
* Get the current Python threadstate and put it somewhere any code running
* in this thread can get it, if it needs to restore the threadstate to run
* some Python.
*/
# define MY_BEGIN_ALLOW_THREADS(ignored) \
PyThread_delete_key_value(_pyOpenSSL_tstate_key); \
PyThread_set_key_value(_pyOpenSSL_tstate_key, PyEval_SaveThread());
/*
* Get the previous Python threadstate and restore it.
*/
# define MY_END_ALLOW_THREADS(ignored) \
PyEval_RestoreThread(PyThread_get_key_value(_pyOpenSSL_tstate_key));
#else
# define MY_BEGIN_ALLOW_THREADS(st)
# define MY_END_ALLOW_THREADS(st) { st = NULL; }
#endif
#if !defined(PY_MAJOR_VERSION) || PY_VERSION_HEX < 0x02000000
static int
PyModule_AddObject(PyObject *m, char *name, PyObject *o)
{
PyObject *dict;
if (!PyModule_Check(m) || o == NULL)
return -1;
dict = PyModule_GetDict(m);
if (dict == NULL)
return -1;
if (PyDict_SetItemString(dict, name, o))
return -1;
Py_DECREF(o);
return 0;
}
static int
PyModule_AddIntConstant(PyObject *m, char *name, long value)
{
return PyModule_AddObject(m, name, PyInt_FromLong(value));
}
static int PyObject_AsFileDescriptor(PyObject *o)
{
int fd;
PyObject *meth;
if (PyInt_Check(o)) {
fd = PyInt_AsLong(o);
}
else if (PyLong_Check(o)) {
fd = PyLong_AsLong(o);
}
else if ((meth = PyObject_GetAttrString(o, "fileno")) != NULL)
{
PyObject *fno = PyEval_CallObject(meth, NULL);
Py_DECREF(meth);
if (fno == NULL)
return -1;
if (PyInt_Check(fno)) {
fd = PyInt_AsLong(fno);
Py_DECREF(fno);
}
else if (PyLong_Check(fno)) {
fd = PyLong_AsLong(fno);
Py_DECREF(fno);
}
else {
PyErr_SetString(PyExc_TypeError, "fileno() returned a non-integer");
Py_DECREF(fno);
return -1;
}
}
else {
PyErr_SetString(PyExc_TypeError, "argument must be an int, or have a fileno() method.");
return -1;
}
if (fd < 0) {
PyErr_Format(PyExc_ValueError, "file descriptor cannot be a negative integer (%i)", fd);
return -1;
}
return fd;
}
#endif
#if !defined(PY_SSIZE_T_MIN)
typedef int Py_ssize_t;
#define PY_SSIZE_T_MAX INT_MAX
#define PY_SSIZE_T_MIN INT_MIN
#endif
#if (PY_VERSION_HEX < 0x02600000)
extern PyObject* PyOpenSSL_LongToHex(PyObject *o);
#else
#define PyOpenSSL_LongToHex(o) PyNumber_ToBase(o, 16)
#endif
#endif
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