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1 | /* -*-c-*- |
2 | * |
3 | * $Id$ |
4 | * |
5 | * Reading and writing passphrases |
6 | * |
7 | * (c) 2005 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of the Python interface to Catacomb. |
13 | * |
14 | * Catacomb/Python is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU General Public License as published by |
16 | * the Free Software Foundation; either version 2 of the License, or |
17 | * (at your option) any later version. |
18 | * |
19 | * Catacomb/Python is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU General Public License |
25 | * along with Catacomb/Python; if not, write to the Free Software Foundation, |
26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
27 | */ |
28 | |
29 | /*----- Header files ------------------------------------------------------*/ |
30 | |
31 | #include "catacomb-python.h" |
32 | |
33 | /*----- Pixie stuff -------------------------------------------------------*/ |
34 | |
35 | typedef struct pixie_pyobj { |
36 | PyObject_HEAD |
37 | int fd; |
38 | } pixie_pyobj; |
39 | |
40 | static PyTypeObject *pixie_pytype; |
41 | #define PIXIE_PYCHECK(o) PyObject_TypeCheck((o), pixie_pytype) |
42 | #define PIXIE_FD(o) (((pixie_pyobj *)(o))->fd) |
43 | |
3aa33042 |
44 | #ifdef WANT_CONVPIXIE |
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45 | static int convpixie(PyObject *o, void *p) |
46 | { |
47 | if (!PIXIE_PYCHECK(o)) |
48 | TYERR("want pixie"); |
49 | *(int *)p = PIXIE_FD(o); |
50 | return (1); |
51 | end: |
52 | return (0); |
53 | } |
3aa33042 |
54 | #endif |
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55 | |
56 | static PyObject *pixie_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
57 | { |
58 | pixie_pyobj *rc = 0; |
59 | char *kwlist[] = { "socket", 0 }; |
60 | char *sock = 0; |
61 | int fd; |
62 | |
63 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s:new", kwlist, &sock)) |
64 | goto end; |
65 | if ((fd = pixie_open(sock)) < 0) |
66 | OSERR(sock); |
67 | rc = (pixie_pyobj *)ty->tp_alloc(ty, 0); |
68 | rc->fd = fd; |
69 | end: |
70 | return ((PyObject *)rc); |
71 | } |
72 | |
73 | static void pixie_pydealloc(PyObject *me) |
74 | { |
75 | close(PIXIE_FD(me)); |
3aa33042 |
76 | FREEOBJ(me); |
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77 | } |
78 | |
79 | static PyObject *pixmeth_read(PyObject *me, PyObject *arg, PyObject *kw) |
80 | { |
81 | unsigned mode = PMODE_READ; |
82 | char *tag; |
83 | char *kwlist[] = { "tag", "mode", 0 }; |
84 | PyObject *rc = 0; |
85 | int r; |
86 | char buf[1024]; |
87 | |
88 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s|O&:read", kwlist, |
89 | &tag, convuint, &mode)) |
90 | goto end; |
91 | r = pixie_read(PIXIE_FD(me), tag, mode, buf, sizeof(buf)); |
92 | if (r < 0) |
93 | OSERR(0); |
94 | else if (r > 0) |
95 | RETURN_NONE; |
96 | else |
97 | rc = PyString_FromString(buf); |
98 | end: |
99 | return (rc); |
100 | } |
101 | |
102 | static PyObject *pixmeth_set(PyObject *me, PyObject *arg) |
103 | { |
104 | char *tag; |
105 | char *phrase; |
106 | |
107 | if (!PyArg_ParseTuple(arg, "ss:set", &tag, &phrase)) |
108 | return (0); |
109 | pixie_set(PIXIE_FD(me), tag, phrase); |
110 | RETURN_ME; |
111 | } |
112 | |
113 | static PyObject *pixmeth_cancel(PyObject *me, PyObject *arg) |
114 | { |
115 | char *tag; |
116 | |
117 | if (!PyArg_ParseTuple(arg, "s:cancel", &tag)) |
118 | return (0); |
119 | pixie_cancel(PIXIE_FD(me), tag); |
120 | RETURN_ME; |
121 | } |
122 | |
123 | static PyMethodDef pixie_pymethods[] = { |
124 | #define METHNAME(name) pixmeth_##name |
125 | KWMETH(read, "P.read(TAG, [mode = PMODE_READ]) -> STRING") |
126 | METH (set, "P.set(TAG, PHRASE)") |
127 | METH (cancel, "P.cancel(TAG)") |
128 | #undef METHNAME |
129 | { 0 } |
130 | }; |
131 | |
132 | static PyTypeObject pixie_pytype_skel = { |
6d4db0bf |
133 | PyObject_HEAD_INIT(0) 0, /* Header */ |
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134 | "catacomb.Pixie", /* @tp_name@ */ |
135 | sizeof(pixie_pyobj), /* @tp_basicsize@ */ |
136 | 0, /* @tp_itemsize@ */ |
137 | |
138 | pixie_pydealloc, /* @tp_dealloc@ */ |
139 | 0, /* @tp_print@ */ |
140 | 0, /* @tp_getattr@ */ |
141 | 0, /* @tp_setattr@ */ |
142 | 0, /* @tp_compare@ */ |
143 | 0, /* @tp_repr@ */ |
144 | 0, /* @tp_as_number@ */ |
145 | 0, /* @tp_as_sequence@ */ |
146 | 0, /* @tp_as_mapping@ */ |
147 | 0, /* @tp_hash@ */ |
148 | 0, /* @tp_call@ */ |
149 | 0, /* @tp_str@ */ |
150 | 0, /* @tp_getattro@ */ |
151 | 0, /* @tp_setattro@ */ |
152 | 0, /* @tp_as_buffer@ */ |
153 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
154 | Py_TPFLAGS_BASETYPE, |
155 | |
156 | /* @tp_doc@ */ |
157 | "Passphrase pixie connection.", |
158 | |
159 | 0, /* @tp_traverse@ */ |
160 | 0, /* @tp_clear@ */ |
161 | 0, /* @tp_richcompare@ */ |
162 | 0, /* @tp_weaklistoffset@ */ |
163 | 0, /* @tp_iter@ */ |
164 | 0, /* @tp_iternexr@ */ |
165 | pixie_pymethods, /* @tp_methods@ */ |
166 | 0, /* @tp_members@ */ |
167 | 0, /* @tp_getset@ */ |
168 | 0, /* @tp_base@ */ |
169 | 0, /* @tp_dict@ */ |
170 | 0, /* @tp_descr_get@ */ |
171 | 0, /* @tp_descr_set@ */ |
172 | 0, /* @tp_dictoffset@ */ |
173 | 0, /* @tp_init@ */ |
174 | PyType_GenericAlloc, /* @tp_alloc@ */ |
175 | pixie_pynew, /* @tp_new@ */ |
3aa33042 |
176 | 0, /* @tp_free@ */ |
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177 | 0 /* @tp_is_gc@ */ |
178 | }; |
179 | |
180 | /*----- Main code ---------------------------------------------------------*/ |
181 | |
182 | static PyObject *meth_ppread(PyObject *me, PyObject *arg, PyObject *kw) |
183 | { |
184 | char *tag; |
185 | unsigned f = PMODE_READ; |
186 | PyObject *rc = 0; |
187 | char *kwlist[] = { "tag", "mode", 0 }; |
188 | char buf[1024]; |
189 | |
190 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s|O&:ppread", kwlist, |
191 | &tag, convuint, &f)) |
192 | goto end; |
193 | if (passphrase_read(tag, f, buf, sizeof(buf))) |
194 | SYSERR("passphrase read failed"); |
195 | rc = PyString_FromString(buf); |
196 | end: |
197 | return (rc); |
198 | } |
199 | |
200 | static PyObject *meth_ppcancel(PyObject *me, PyObject *arg) |
201 | { |
202 | char *tag; |
203 | |
204 | if (!PyArg_ParseTuple(arg, "s:ppcancel", &tag)) |
205 | return (0); |
206 | passphrase_cancel(tag); |
207 | RETURN_NONE; |
208 | } |
209 | |
210 | static PyObject *meth_getpass(PyObject *me, PyObject *arg) |
211 | { |
212 | char *prompt; |
213 | char buf[1024]; |
214 | PyObject *rc = 0; |
215 | |
216 | if (!PyArg_ParseTuple(arg, "s:getpass", &prompt)) |
217 | goto end; |
218 | if (pixie_getpass(prompt, buf, sizeof(buf))) |
219 | OSERR(0); |
220 | rc = PyString_FromString(buf); |
221 | end: |
222 | return (rc); |
223 | } |
224 | |
225 | static PyMethodDef methods[] = { |
226 | #define METHNAME(name) meth_##name |
227 | KWMETH(ppread, "ppread(TAG, [mode = PMODE_READ]) -> STRING") |
228 | METH (ppcancel, "ppcancel(TAG)") |
229 | METH (getpass, "getpass(PROMPT) -> STRING") |
230 | #undef METHNAME |
231 | { 0 } |
232 | }; |
233 | |
234 | void passphrase_pyinit(void) |
235 | { |
236 | INITTYPE(pixie, root); |
237 | addmethods(methods); |
238 | } |
239 | |
240 | void passphrase_pyinsert(PyObject *mod) |
241 | { |
242 | INSERT("Pixie", pixie_pytype); |
243 | } |
244 | |
245 | /*----- That's all, folks -------------------------------------------------*/ |