summaryrefslogtreecommitdiff
path: root/source3/python/py_conv.c
blob: d0a2d78aabd48d15066608ead8dd6070e46fb6b9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
/* 
   Python wrappers for DCERPC/SMB client routines.

   Copyright (C) Tim Potter, 2002
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "py_conv.h"

/* Helper for rpcstr_pull() function */

static void fstr_pull(fstring str, UNISTR *uni)
{
	rpcstr_pull(str, uni->buffer, sizeof(fstring), -1, STR_TERMINATE);
}

static void fstr_pull2(fstring str, UNISTR2 *uni)
{
	rpcstr_pull(str, uni->buffer, sizeof(fstring), -1, STR_TERMINATE);
}

/* Convert a structure to a Python dict */

PyObject *from_struct(void *s, struct pyconv *conv)
{
	PyObject *obj, *item;
	int i;

	obj = PyDict_New();

	for (i = 0; conv[i].name; i++) {
		switch (conv[i].type) {
		case PY_UNISTR: {
			UNISTR *u = (UNISTR *)((char *)s + conv[i].offset);
			fstring str = "";

			if (u->buffer)
				fstr_pull(str, u);

			item = PyString_FromString(str);
			PyDict_SetItemString(obj, conv[i].name, item);

			break;
		}
		case PY_UNISTR2: {
			UNISTR2 *u = (UNISTR2 *)((char *)s + conv[i].offset);
			fstring str = "";

			if (u->buffer)
				fstr_pull2(str, u);

			item = PyString_FromString(str);
			PyDict_SetItemString(obj, conv[i].name, item);

			break;
		}
		case PY_UINT32: {
			uint32 *u = (uint32 *)((char *)s + conv[i].offset);

			item = PyInt_FromLong(*u);
			PyDict_SetItemString(obj, conv[i].name, item);
			
			break;
		}
		case PY_UINT16: {
			uint16 *u = (uint16 *)((char *)s + conv[i].offset);

			item = PyInt_FromLong(*u);
			PyDict_SetItemString(obj, conv[i].name, item);

			break;
		}
		case PY_STRING: {
			char *str = (char *)s + conv[i].offset;

			item = PyString_FromString(str);
			PyDict_SetItemString(obj, conv[i].name, item);

			break;
		}
		case PY_UID: {
			uid_t *uid = (uid_t *)((char *)s + conv[i].offset);

			item = PyInt_FromLong(*uid);
			PyDict_SetItemString(obj, conv[i].name, item);

			break;
		}
		case PY_GID: {
			gid_t *gid = (gid_t *)((char *)s + conv[i].offset);

			item = PyInt_FromLong(*gid);
			PyDict_SetItemString(obj, conv[i].name, item);

			break;
		}
		default:
			
			break;
		}
	}

	return obj;
}

/* Convert a Python dict to a structure */

BOOL to_struct(void *s, PyObject *dict, struct pyconv *conv)
{
	PyObject *visited, *key, *value;
	BOOL result = False;
	int i;

	visited = PyDict_New();

	for (i = 0; conv[i].name; i++) {
		PyObject *obj;
		
		obj = PyDict_GetItemString(dict, conv[i].name);

		if (!obj)
			goto done;
		
		switch (conv[i].type) {
		case PY_UNISTR: {
			UNISTR *u = (UNISTR *)((char *)s + conv[i].offset);
			char *str = "";

			if (!PyString_Check(obj))
				goto done;

			str = PyString_AsString(obj);
			init_unistr(u, str);
			
			break;
		}
		case PY_UINT32: {
			uint32 *u = (uint32 *)((char *)s + conv[i].offset);

			if (!PyInt_Check(obj))
				goto done;

			*u = PyInt_AsLong(obj);

			break;
		}
		case PY_UINT16: {
			uint16 *u = (uint16 *)((char *)s + conv[i].offset);

			if (!PyInt_Check(obj)) 
				goto done;

			*u = PyInt_AsLong(obj);
			break;
		}
		default:
			break;
		}

		/* Mark as visited */

		PyDict_SetItemString(visited, conv[i].name, 
				     PyInt_FromLong(1));
	}

	/* Iterate over each item in the input dictionary and see if it was
	   visited.  If it wasn't then the user has added some extra crap
	   to the dictionary. */

	i = 0;

	while (PyDict_Next(dict, &i, &key, &value)) {
		if (!PyDict_GetItem(visited, key))
			goto done;
	}

	result = True;

done:
	/* We must decrement the reference count here or the visited
	   dictionary will not be freed. */
	       
	Py_DECREF(visited);

	return result;
}

/* Convert a NULL terminated list of NULL terminated unicode strings
   to a list of (char *) strings */

PyObject *from_unistr_list(uint16 *dependentfiles)
{
	PyObject *list;
	int offset = 0;

	list = PyList_New(0);

	while (*(dependentfiles + offset) != 0) {
		fstring name;
		int len;

		len = rpcstr_pull(name, dependentfiles + offset,
				  sizeof(fstring), -1, STR_TERMINATE);

		offset += len / 2;
		PyList_Append(list, PyString_FromString(name));
	}

	return list;
}