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extern "C" {
#include "Python.h"
#include "patricia.h"
}
#ifdef SWIG
// If a function is supposed to accept 4-byte tuples as packet by
// socket.inet_aton(), it needs to accept strings which contain 0s.
// Therefore, we need a size parameter.
%typemap(in) (char* cidr, int size) (PyObject* ascii)
%{
Py_ssize_t len;
#if PY_MAJOR_VERSION >= 3
if ( PyUnicode_Check($input) )
{
ascii = PyUnicode_AsASCIIString($input);
if ( ! ascii )
{
PyErr_SetString(PyExc_TypeError, "Expected a ASCII encodable string or bytes");
return NULL;
}
PyBytes_AsStringAndSize(ascii, &$1, &len);
$2 = len;
}
else if ( PyBytes_Check($input) )
{
PyBytes_AsStringAndSize($input, &$1, &len);
$2 = len;
}
else
{
PyErr_SetString(PyExc_TypeError, "Expected a string or bytes");
return NULL;
}
#else
if ( ! PyString_Check($input) )
{
PyErr_SetString(PyExc_TypeError, "Expected a string or bytes");
return NULL;
}
else
{
PyString_AsStringAndSize($input, &$1, &len);
$2 = len;
}
#endif
%}
%typemap(arginit) (char* cidr, int size)
{
ascii$argnum = NULL;
}
%typemap(freearg) (char* cidr, int size)
{
Py_XDECREF(ascii$argnum);
}
%typecheck(SWIG_TYPECHECK_STRING) (char* cidr, int size)
{
// The typemap above will check types and throw a type error when
// needed, so just let everything through.
$1 = 1;
}
#endif
typedef union _inx_addr {
struct in_addr sin;
struct in6_addr sin6;
} inx_addr;
class SubnetTree
{
public:
SubnetTree(bool binary_lookup_mode = false);
~SubnetTree();
PyObject* insert(const char *cidr, PyObject* data = 0);
PyObject* insert(unsigned long subnet, unsigned short mask, PyObject* data = 0);
PyObject* remove(const char *cidr);
PyObject* remove(unsigned long subnet, unsigned short mask);
PyObject* lookup(const char *cidr, int size) const;
PyObject* lookup(unsigned long addr) const;
PyObject* prefixes(bool ipv4_native = false, bool with_len = true) const;
bool get_binary_lookup_mode();
void set_binary_lookup_mode(bool binary_lookup_mode = true);
#ifndef SWIG
bool operator[](const char* addr) const { return lookup(addr, strlen(addr)); }
bool operator[](unsigned long addr) const { return lookup(addr); }
#else
%extend {
PyObject* __contains__(char *cidr, int size)
{
if ( ! cidr ) {
PyErr_SetString(PyExc_TypeError, "index must be string");
return 0;
}
PyObject* obj = self->lookup(cidr, size);
if ( obj )
{
Py_DECREF(obj);
}
if ( PyErr_Occurred() )
return 0;
if ( obj != 0 )
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
PyObject* __contains__(unsigned long addr)
{
PyObject* obj = self->lookup(addr);
if ( obj )
{
Py_DECREF(obj);
}
if ( PyErr_Occurred() )
return 0;
if ( obj != 0 )
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
PyObject* __getitem__(char *cidr, int size)
{
if ( ! cidr ) {
PyErr_SetString(PyExc_TypeError, "index must be string");
return 0;
}
PyObject* data = self->lookup(cidr, size);
if ( ! data ) {
PyErr_SetString(PyExc_KeyError, cidr);
return 0;
}
return data;
}
PyObject* __setitem__(const char* cidr, PyObject* data)
{
if ( ! cidr ) {
PyErr_SetString(PyExc_TypeError, "index must be string");
return 0;
}
if ( self->insert(cidr, data) )
Py_RETURN_TRUE;
else
return 0;
}
PyObject* __delitem__(const char* cidr)
{
if ( ! cidr ) {
PyErr_SetString(PyExc_TypeError, "index must be string");
return 0;
}
if ( self->remove(cidr) )
Py_RETURN_TRUE;
else
return 0;
}
}
#endif
private:
PyObject* insert(int family, inx_addr subnet, unsigned short mask, PyObject * data);
PyObject* remove(int family, inx_addr subnet, unsigned short mask);
PyObject* lookup(int family, inx_addr subnet) const;
static void PatriciaDeleteFunction(void* data);
patricia_tree_t* tree;
bool binary_lookup_mode;
};
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