1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-print-message.h Utility function to print out a message
3 *
4 * Copyright (C) 2003 Philip Blundell <philb@gnu.org>
5 * Copyright (C) 2003 Red Hat, Inc.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 *
21 */
22
23 #include <config.h>
24 #include "dbus-print-message.h"
25
26 #include <stdlib.h>
27 #include "config.h"
28
29 static const char*
type_to_name(int message_type)30 type_to_name (int message_type)
31 {
32 switch (message_type)
33 {
34 case DBUS_MESSAGE_TYPE_SIGNAL:
35 return "signal";
36 case DBUS_MESSAGE_TYPE_METHOD_CALL:
37 return "method call";
38 case DBUS_MESSAGE_TYPE_METHOD_RETURN:
39 return "method return";
40 case DBUS_MESSAGE_TYPE_ERROR:
41 return "error";
42 default:
43 return "(unknown message type)";
44 }
45 }
46
47 #define INDENT 3
48
49 static void
indent(int depth)50 indent (int depth)
51 {
52 while (depth-- > 0)
53 printf (" "); /* INDENT spaces. */
54 }
55
56 static void
print_hex(unsigned char * bytes,unsigned int len,int depth)57 print_hex (unsigned char *bytes, unsigned int len, int depth)
58 {
59 unsigned int i, columns;
60
61 printf ("array of bytes [\n");
62
63 indent (depth + 1);
64
65 /* Each byte takes 3 cells (two hexits, and a space), except the last one. */
66 columns = (80 - ((depth + 1) * INDENT)) / 3;
67
68 if (columns < 8)
69 columns = 8;
70
71 i = 0;
72
73 while (i < len)
74 {
75 printf ("%02x", bytes[i]);
76 i++;
77
78 if (i != len)
79 {
80 if (i % columns == 0)
81 {
82 printf ("\n");
83 indent (depth + 1);
84 }
85 else
86 {
87 printf (" ");
88 }
89 }
90 }
91
92 printf ("\n");
93 indent (depth);
94 printf ("]\n");
95 }
96
97 #define DEFAULT_SIZE 100
98
99 static void
print_ay(DBusMessageIter * iter,int depth)100 print_ay (DBusMessageIter *iter, int depth)
101 {
102 /* Not using DBusString because it's not public API. It's 2009, and I'm
103 * manually growing a string chunk by chunk.
104 */
105 unsigned char *bytes = malloc (DEFAULT_SIZE + 1);
106 unsigned int len = 0;
107 unsigned int max = DEFAULT_SIZE;
108 dbus_bool_t all_ascii = TRUE;
109 int current_type;
110
111 while ((current_type = dbus_message_iter_get_arg_type (iter))
112 != DBUS_TYPE_INVALID)
113 {
114 unsigned char val;
115
116 dbus_message_iter_get_basic (iter, &val);
117 bytes[len] = val;
118 len++;
119
120 if (val < 32 || val > 126)
121 all_ascii = FALSE;
122
123 if (len == max)
124 {
125 max *= 2;
126 bytes = realloc (bytes, max + 1);
127 }
128
129 dbus_message_iter_next (iter);
130 }
131
132 if (all_ascii)
133 {
134 bytes[len] = '\0';
135 printf ("array of bytes \"%s\"\n", bytes);
136 }
137 else
138 {
139 print_hex (bytes, len, depth);
140 }
141
142 free (bytes);
143 }
144
145 static void
print_iter(DBusMessageIter * iter,dbus_bool_t literal,int depth)146 print_iter (DBusMessageIter *iter, dbus_bool_t literal, int depth)
147 {
148 do
149 {
150 int type = dbus_message_iter_get_arg_type (iter);
151
152 if (type == DBUS_TYPE_INVALID)
153 break;
154
155 indent(depth);
156
157 switch (type)
158 {
159 case DBUS_TYPE_STRING:
160 {
161 char *val;
162 dbus_message_iter_get_basic (iter, &val);
163 if (!literal)
164 printf ("string \"");
165 printf ("%s", val);
166 if (!literal)
167 printf ("\"\n");
168 break;
169 }
170
171 case DBUS_TYPE_SIGNATURE:
172 {
173 char *val;
174 dbus_message_iter_get_basic (iter, &val);
175 if (!literal)
176 printf ("signature \"");
177 printf ("%s", val);
178 if (!literal)
179 printf ("\"\n");
180 break;
181 }
182
183 case DBUS_TYPE_OBJECT_PATH:
184 {
185 char *val;
186 dbus_message_iter_get_basic (iter, &val);
187 if (!literal)
188 printf ("object path \"");
189 printf ("%s", val);
190 if (!literal)
191 printf ("\"\n");
192 break;
193 }
194
195 case DBUS_TYPE_INT16:
196 {
197 dbus_int16_t val;
198 dbus_message_iter_get_basic (iter, &val);
199 printf ("int16 %d\n", val);
200 break;
201 }
202
203 case DBUS_TYPE_UINT16:
204 {
205 dbus_uint16_t val;
206 dbus_message_iter_get_basic (iter, &val);
207 printf ("uint16 %u\n", val);
208 break;
209 }
210
211 case DBUS_TYPE_INT32:
212 {
213 dbus_int32_t val;
214 dbus_message_iter_get_basic (iter, &val);
215 printf ("int32 %d\n", val);
216 break;
217 }
218
219 case DBUS_TYPE_UINT32:
220 {
221 dbus_uint32_t val;
222 dbus_message_iter_get_basic (iter, &val);
223 printf ("uint32 %u\n", val);
224 break;
225 }
226
227 case DBUS_TYPE_INT64:
228 {
229 dbus_int64_t val;
230 dbus_message_iter_get_basic (iter, &val);
231 #ifdef DBUS_INT64_PRINTF_MODIFIER
232 printf ("int64 %" DBUS_INT64_PRINTF_MODIFIER "d\n", val);
233 #else
234 printf ("int64 (omitted)\n");
235 #endif
236 break;
237 }
238
239 case DBUS_TYPE_UINT64:
240 {
241 dbus_uint64_t val;
242 dbus_message_iter_get_basic (iter, &val);
243 #ifdef DBUS_INT64_PRINTF_MODIFIER
244 printf ("uint64 %" DBUS_INT64_PRINTF_MODIFIER "u\n", val);
245 #else
246 printf ("uint64 (omitted)\n");
247 #endif
248 break;
249 }
250
251 case DBUS_TYPE_DOUBLE:
252 {
253 double val;
254 dbus_message_iter_get_basic (iter, &val);
255 printf ("double %g\n", val);
256 break;
257 }
258
259 case DBUS_TYPE_BYTE:
260 {
261 unsigned char val;
262 dbus_message_iter_get_basic (iter, &val);
263 printf ("byte %d\n", val);
264 break;
265 }
266
267 case DBUS_TYPE_BOOLEAN:
268 {
269 dbus_bool_t val;
270 dbus_message_iter_get_basic (iter, &val);
271 printf ("boolean %s\n", val ? "true" : "false");
272 break;
273 }
274
275 case DBUS_TYPE_VARIANT:
276 {
277 DBusMessageIter subiter;
278
279 dbus_message_iter_recurse (iter, &subiter);
280
281 printf ("variant ");
282 print_iter (&subiter, literal, depth+1);
283 break;
284 }
285 case DBUS_TYPE_ARRAY:
286 {
287 int current_type;
288 DBusMessageIter subiter;
289
290 dbus_message_iter_recurse (iter, &subiter);
291
292 current_type = dbus_message_iter_get_arg_type (&subiter);
293
294 if (current_type == DBUS_TYPE_BYTE)
295 {
296 print_ay (&subiter, depth);
297 break;
298 }
299
300 printf("array [\n");
301 while (current_type != DBUS_TYPE_INVALID)
302 {
303 print_iter (&subiter, literal, depth+1);
304
305 dbus_message_iter_next (&subiter);
306 current_type = dbus_message_iter_get_arg_type (&subiter);
307
308 if (current_type != DBUS_TYPE_INVALID)
309 printf (",");
310 }
311 indent(depth);
312 printf("]\n");
313 break;
314 }
315 case DBUS_TYPE_DICT_ENTRY:
316 {
317 DBusMessageIter subiter;
318
319 dbus_message_iter_recurse (iter, &subiter);
320
321 printf("dict entry(\n");
322 print_iter (&subiter, literal, depth+1);
323 dbus_message_iter_next (&subiter);
324 print_iter (&subiter, literal, depth+1);
325 indent(depth);
326 printf(")\n");
327 break;
328 }
329
330 case DBUS_TYPE_STRUCT:
331 {
332 int current_type;
333 DBusMessageIter subiter;
334
335 dbus_message_iter_recurse (iter, &subiter);
336
337 printf("struct {\n");
338 while ((current_type = dbus_message_iter_get_arg_type (&subiter)) != DBUS_TYPE_INVALID)
339 {
340 print_iter (&subiter, literal, depth+1);
341 dbus_message_iter_next (&subiter);
342 if (dbus_message_iter_get_arg_type (&subiter) != DBUS_TYPE_INVALID)
343 printf (",");
344 }
345 indent(depth);
346 printf("}\n");
347 break;
348 }
349
350 default:
351 printf (" (dbus-monitor too dumb to decipher arg type '%c')\n", type);
352 break;
353 }
354 } while (dbus_message_iter_next (iter));
355 }
356
357 void
print_message(DBusMessage * message,dbus_bool_t literal)358 print_message (DBusMessage *message, dbus_bool_t literal)
359 {
360 DBusMessageIter iter;
361 const char *sender;
362 const char *destination;
363 int message_type;
364
365 message_type = dbus_message_get_type (message);
366 sender = dbus_message_get_sender (message);
367 destination = dbus_message_get_destination (message);
368
369 if (!literal)
370 {
371 printf ("%s sender=%s -> dest=%s",
372 type_to_name (message_type),
373 sender ? sender : "(null sender)",
374 destination ? destination : "(null destination)");
375
376 switch (message_type)
377 {
378 case DBUS_MESSAGE_TYPE_METHOD_CALL:
379 case DBUS_MESSAGE_TYPE_SIGNAL:
380 printf (" serial=%u path=%s; interface=%s; member=%s\n",
381 dbus_message_get_serial (message),
382 dbus_message_get_path (message),
383 dbus_message_get_interface (message),
384 dbus_message_get_member (message));
385 break;
386
387 case DBUS_MESSAGE_TYPE_METHOD_RETURN:
388 printf (" reply_serial=%u\n",
389 dbus_message_get_reply_serial (message));
390 break;
391
392 case DBUS_MESSAGE_TYPE_ERROR:
393 printf (" error_name=%s reply_serial=%u\n",
394 dbus_message_get_error_name (message),
395 dbus_message_get_reply_serial (message));
396 break;
397
398 default:
399 printf ("\n");
400 break;
401 }
402 }
403
404 dbus_message_iter_init (message, &iter);
405 print_iter (&iter, literal, 1);
406 fflush (stdout);
407
408 }
409
410