5 * (c) 2004 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
12 * Catacomb/Python is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * Catacomb/Python is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with Catacomb/Python; if not, write to the Free Software Foundation,
24 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 /*----- Main code ---------------------------------------------------------*/
33 PyTypeObject
*bytestring_pytype
;
35 static PyObject
*dowrap(PyTypeObject
*ty
, const void *p
, size_t n
)
37 PyStringObject
*x
= (PyStringObject
*)ty
->tp_alloc(ty
, n
);
38 if (p
) memcpy(x
->ob_sval
, p
, n
);
40 #if defined(CACHE_HASH) || PY_VERSION_HEX >= 0x02030000
43 x
->ob_sstate
= SSTATE_NOT_INTERNED
;
44 return ((PyObject
*)x
);
47 PyObject
*bytestring_pywrap(const void *p
, size_t n
)
48 { return (dowrap(bytestring_pytype
, p
, n
)); }
50 PyObject
*bytestring_pywrapbuf(buf
*b
)
51 { return (dowrap(bytestring_pytype
, BCUR(b
), BLEFT(b
))); }
53 static PyObject
*bytestring_pynew(PyTypeObject
*ty
,
54 PyObject
*arg
, PyObject
*kw
)
58 static char *kwlist
[] = { "data", 0 };
59 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#:new", kwlist
, &p
, &n
))
61 return (dowrap(ty
, p
, n
));
64 static PyObject
*meth_ctstreq(PyObject
*me
, PyObject
*arg
)
68 if (!PyArg_ParseTuple(arg
, "s#s#:ctstreq", &p
, &psz
, &q
, &qsz
))
70 if (psz
== qsz
&& ct_memeq(p
, q
, psz
)) RETURN_TRUE
;
76 static PyObject
*meth__ByteString_zero(PyObject
*me
, PyObject
*arg
)
80 if (!PyArg_ParseTuple(arg
, "OO&:zero", &me
, convszt
, &sz
)) goto end
;
81 rc
= bytestring_pywrap(0, sz
);
82 memset(PyString_AS_STRING(rc
), 0, sz
);
87 static PyObject
*bytestring_pyrichcompare(PyObject
*me
,
88 PyObject
*you
, int op
)
91 void *mystr
, *yourstr
;
92 Py_ssize_t mylen
, yourlen
, minlen
;
94 if (!PyString_Check(me
) || !PyString_Check(you
)) RETURN_NOTIMPL
;
95 mystr
= PyString_AS_STRING(me
); mylen
= PyString_GET_SIZE(me
);
96 yourstr
= PyString_AS_STRING(you
); yourlen
= PyString_GET_SIZE(you
);
100 b
= mylen
== yourlen
&& ct_memeq(mystr
, yourstr
, mylen
);
103 b
= mylen
!= yourlen
|| !ct_memeq(mystr
, yourstr
, mylen
);
106 minlen
= mylen
< yourlen ? mylen
: yourlen
;
107 b
= memcmp(mystr
, yourstr
, minlen
);
108 if (!b
) b
= mylen
< yourlen ?
-1 : mylen
> yourlen ?
+1 : 0;
110 case Py_LT
: b
= b
< 0; break;
111 case Py_LE
: b
= b
<= 0; break;
112 case Py_GE
: b
= b
>= 0; break;
113 case Py_GT
: b
= b
> 0; break;
121 #define BINOP(name, op) \
122 static PyObject *bytestring_py##name(PyObject *x, PyObject *y) { \
123 const void *xv, *yv; \
124 const unsigned char *xp, *yp; \
126 Py_ssize_t xsz, ysz; \
129 if (PyObject_AsReadBuffer(x, &xv, &xsz) || \
130 PyObject_AsReadBuffer(y, &yv, &ysz)) \
132 if (xsz != ysz) VALERR("length mismatch"); \
133 rc = bytestring_pywrap(0, xsz); \
134 xp = xv; yp = yv; zp = (unsigned char *)PyString_AS_STRING(rc); \
135 for (i = xsz; i > 0; i--) *zp++ = *xp++ op *yp++; \
143 #define UNOP(name, op) \
144 static PyObject *bytestring_py##name(PyObject *x) { \
146 const unsigned char *xp; \
151 if (PyObject_AsReadBuffer(x, &xv, &xsz)) goto end; \
152 rc = bytestring_pywrap(0, xsz); \
153 xp = xv; zp = (unsigned char *)PyString_AS_STRING(rc); \
154 for (i = xsz; i > 0; i--) *zp++ = op *xp++; \
160 static PyNumberMethods bytestring_pynumber
= {
162 0, /* @nb_subtract@ */
163 0, /* @nb_multiply@ */
165 0, /* @nb_remainder@ */
168 0, /* @nb_negative@ */
169 0, /* @nb_positive@ */
170 0, /* @nb_absolute@ */
171 0, /* @nb_nonzero@ */
172 bytestring_pynot
, /* @nb_invert@ */
175 bytestring_pyand
, /* @nb_and@ */
176 bytestring_pyxor
, /* @nb_xor@ */
177 bytestring_pyor
, /* @nb_or@ */
186 static PyBufferProcs bytestring_pybuffer
;
188 static PyTypeObject bytestring_pytype_skel
= {
189 PyObject_HEAD_INIT(0) 0, /* Header */
190 "ByteString", /* @tp_name@ */
191 0, /* @tp_basicsize@ */
192 0, /* @tp_itemsize@ */
194 0, /* @tp_dealloc@ */
196 0, /* @tp_getattr@ */
197 0, /* @tp_setattr@ */
198 0, /* @tp_compare@ */
200 &bytestring_pynumber
, /* @tp_as_number@ */
201 0, /* @tp_as_sequence@ */
202 0, /* @tp_as_mapping@ */
206 0, /* @tp_getattro@ */
207 0, /* @tp_setattro@ */
208 &bytestring_pybuffer
, /* @tp_as_buffer@ */
209 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
210 Py_TPFLAGS_CHECKTYPES
|
214 "Byte string class.",
216 0, /* @tp_traverse@ */
218 bytestring_pyrichcompare
, /* @tp_richcompare@ */
219 0, /* @tp_weaklistoffset@ */
221 0, /* @tp_iternext@ */
222 0, /* @tp_methods@ */
223 0, /* @tp_members@ */
227 0, /* @tp_descr_get@ */
228 0, /* @tp_descr_set@ */
229 0, /* @tp_dictoffset@ */
231 PyType_GenericAlloc
, /* @tp_alloc@ */
232 bytestring_pynew
, /* @tp_new@ */
237 /*----- Initialization ----------------------------------------------------*/
239 static PyMethodDef methods
[] = {
240 #define METHNAME(func) meth_##func
241 METH (ctstreq
, "ctstreq(S, T) -> BOOL")
242 METH (_ByteString_zero
, "zero(N) -> 0000...00")
247 #define string_pytype &PyString_Type
248 void bytestring_pyinit(void)
250 INITTYPE(bytestring
, string
);
254 void bytestring_pyinsert(PyObject
*mod
)
256 INSERT("ByteString", bytestring_pytype
);
259 /*----- That's all, folks -------------------------------------------------*/