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author | Christian Grothoff <christian@grothoff.org> | 2016-02-05 22:24:10 +0000 |
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committer | Christian Grothoff <christian@grothoff.org> | 2016-02-05 22:24:10 +0000 |
commit | d75a2de4e9a450269291a47593f2e50c37eca733 (patch) | |
tree | 915d9cf6f76d8cfb2e7fb80f948aa362e72a944f /src/pq/pq_query_helper.c | |
parent | 522bd40f4cee9e5546d15128f76d18799017220c (diff) | |
download | gnunet-d75a2de4e9a450269291a47593f2e50c37eca733.tar.gz gnunet-d75a2de4e9a450269291a47593f2e50c37eca733.zip |
creating libgnunetpq library
Diffstat (limited to 'src/pq/pq_query_helper.c')
-rw-r--r-- | src/pq/pq_query_helper.c | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/src/pq/pq_query_helper.c b/src/pq/pq_query_helper.c new file mode 100644 index 000000000..5f2764b62 --- /dev/null +++ b/src/pq/pq_query_helper.c | |||
@@ -0,0 +1,386 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2014, 2015, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify it under the | ||
6 | terms of the GNU General Public License as published by the Free Software | ||
7 | Foundation; either version 3, or (at your option) any later version. | ||
8 | |||
9 | GNUnet is distributed in the hope that it will be useful, but WITHOUT ANY | ||
10 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR | ||
11 | A PARTICULAR PURPOSE. See the GNU General Public License for more details. | ||
12 | |||
13 | You should have received a copy of the GNU General Public License along with | ||
14 | GNUnet; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/> | ||
15 | */ | ||
16 | /** | ||
17 | * @file pq/pq_query_helper.c | ||
18 | * @brief functions to initialize parameter arrays | ||
19 | * @author Christian Grothoff | ||
20 | */ | ||
21 | #include "platform.h" | ||
22 | #include <gnunet/gnunet_util_lib.h> | ||
23 | #include "gnunet_pq_lib.h" | ||
24 | |||
25 | |||
26 | /** | ||
27 | * Function called to convert input argument into SQL parameters. | ||
28 | * | ||
29 | * @param cls closure | ||
30 | * @param data pointer to input argument | ||
31 | * @param data_len number of bytes in @a data (if applicable) | ||
32 | * @param[out] param_values SQL data to set | ||
33 | * @param[out] param_lengths SQL length data to set | ||
34 | * @param[out] param_formats SQL format data to set | ||
35 | * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays | ||
36 | * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() | ||
37 | * @param scratch_length number of entries left in @a scratch | ||
38 | * @return -1 on error, number of offsets used in @a scratch otherwise | ||
39 | */ | ||
40 | static int | ||
41 | qconv_fixed (void *cls, | ||
42 | const void *data, | ||
43 | size_t data_len, | ||
44 | void *param_values[], | ||
45 | int param_lengths[], | ||
46 | int param_formats[], | ||
47 | unsigned int param_length, | ||
48 | void *scratch[], | ||
49 | unsigned int scratch_length) | ||
50 | { | ||
51 | GNUNET_break (NULL == cls); | ||
52 | if (1 != param_length) | ||
53 | return -1; | ||
54 | param_values[0] = (void *) data; | ||
55 | param_lengths[0] = data_len; | ||
56 | param_formats[0] = 1; | ||
57 | return 0; | ||
58 | } | ||
59 | |||
60 | |||
61 | /** | ||
62 | * Generate query parameter for a buffer @a ptr of | ||
63 | * @a ptr_size bytes. | ||
64 | * | ||
65 | * @param ptr pointer to the query parameter to pass | ||
66 | * @oaran ptr_size number of bytes in @a ptr | ||
67 | */ | ||
68 | struct GNUNET_PQ_QueryParam | ||
69 | GNUNET_PQ_query_param_fixed_size (const void *ptr, | ||
70 | size_t ptr_size) | ||
71 | { | ||
72 | struct GNUNET_PQ_QueryParam res = | ||
73 | { &qconv_fixed, NULL, ptr, ptr_size, 1 }; | ||
74 | return res; | ||
75 | } | ||
76 | |||
77 | |||
78 | /** | ||
79 | * Function called to convert input argument into SQL parameters. | ||
80 | * | ||
81 | * @param cls closure | ||
82 | * @param data pointer to input argument | ||
83 | * @param data_len number of bytes in @a data (if applicable) | ||
84 | * @param[out] param_values SQL data to set | ||
85 | * @param[out] param_lengths SQL length data to set | ||
86 | * @param[out] param_formats SQL format data to set | ||
87 | * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays | ||
88 | * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() | ||
89 | * @param scratch_length number of entries left in @a scratch | ||
90 | * @return -1 on error, number of offsets used in @a scratch otherwise | ||
91 | */ | ||
92 | static int | ||
93 | qconv_uint16 (void *cls, | ||
94 | const void *data, | ||
95 | size_t data_len, | ||
96 | void *param_values[], | ||
97 | int param_lengths[], | ||
98 | int param_formats[], | ||
99 | unsigned int param_length, | ||
100 | void *scratch[], | ||
101 | unsigned int scratch_length) | ||
102 | { | ||
103 | const uint16_t *u_hbo = data; | ||
104 | uint16_t *u_nbo; | ||
105 | |||
106 | GNUNET_break (NULL == cls); | ||
107 | if (1 != param_length) | ||
108 | return -1; | ||
109 | u_nbo = GNUNET_new (uint16_t); | ||
110 | scratch[0] = u_nbo; | ||
111 | *u_nbo = htons (*u_hbo); | ||
112 | param_values[0] = (void *) u_nbo; | ||
113 | param_lengths[0] = sizeof (uint16_t); | ||
114 | param_formats[0] = 1; | ||
115 | return 1; | ||
116 | } | ||
117 | |||
118 | |||
119 | /** | ||
120 | * Generate query parameter for an uint16_t in host byte order. | ||
121 | * | ||
122 | * @param x pointer to the query parameter to pass | ||
123 | */ | ||
124 | struct GNUNET_PQ_QueryParam | ||
125 | GNUNET_PQ_query_param_uint16 (const uint16_t *x) | ||
126 | { | ||
127 | struct GNUNET_PQ_QueryParam res = | ||
128 | { &qconv_uint16, NULL, x, sizeof (*x), 1 }; | ||
129 | return res; | ||
130 | } | ||
131 | |||
132 | |||
133 | /** | ||
134 | * Function called to convert input argument into SQL parameters. | ||
135 | * | ||
136 | * @param cls closure | ||
137 | * @param data pointer to input argument | ||
138 | * @param data_len number of bytes in @a data (if applicable) | ||
139 | * @param[out] param_values SQL data to set | ||
140 | * @param[out] param_lengths SQL length data to set | ||
141 | * @param[out] param_formats SQL format data to set | ||
142 | * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays | ||
143 | * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() | ||
144 | * @param scratch_length number of entries left in @a scratch | ||
145 | * @return -1 on error, number of offsets used in @a scratch otherwise | ||
146 | */ | ||
147 | static int | ||
148 | qconv_uint32 (void *cls, | ||
149 | const void *data, | ||
150 | size_t data_len, | ||
151 | void *param_values[], | ||
152 | int param_lengths[], | ||
153 | int param_formats[], | ||
154 | unsigned int param_length, | ||
155 | void *scratch[], | ||
156 | unsigned int scratch_length) | ||
157 | { | ||
158 | const uint32_t *u_hbo = data; | ||
159 | uint32_t *u_nbo; | ||
160 | |||
161 | GNUNET_break (NULL == cls); | ||
162 | if (1 != param_length) | ||
163 | return -1; | ||
164 | u_nbo = GNUNET_new (uint32_t); | ||
165 | scratch[0] = u_nbo; | ||
166 | *u_nbo = htonl (*u_hbo); | ||
167 | param_values[0] = (void *) u_nbo; | ||
168 | param_lengths[0] = sizeof (uint32_t); | ||
169 | param_formats[0] = 1; | ||
170 | return 1; | ||
171 | } | ||
172 | |||
173 | |||
174 | /** | ||
175 | * Generate query parameter for an uint32_t in host byte order. | ||
176 | * | ||
177 | * @param x pointer to the query parameter to pass | ||
178 | */ | ||
179 | struct GNUNET_PQ_QueryParam | ||
180 | GNUNET_PQ_query_param_uint32 (const uint32_t *x) | ||
181 | { | ||
182 | struct GNUNET_PQ_QueryParam res = | ||
183 | { &qconv_uint32, NULL, x, sizeof (*x), 1 }; | ||
184 | return res; | ||
185 | } | ||
186 | |||
187 | |||
188 | /** | ||
189 | * Function called to convert input argument into SQL parameters. | ||
190 | * | ||
191 | * @param cls closure | ||
192 | * @param data pointer to input argument | ||
193 | * @param data_len number of bytes in @a data (if applicable) | ||
194 | * @param[out] param_values SQL data to set | ||
195 | * @param[out] param_lengths SQL length data to set | ||
196 | * @param[out] param_formats SQL format data to set | ||
197 | * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays | ||
198 | * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() | ||
199 | * @param scratch_length number of entries left in @a scratch | ||
200 | * @return -1 on error, number of offsets used in @a scratch otherwise | ||
201 | */ | ||
202 | static int | ||
203 | qconv_uint64 (void *cls, | ||
204 | const void *data, | ||
205 | size_t data_len, | ||
206 | void *param_values[], | ||
207 | int param_lengths[], | ||
208 | int param_formats[], | ||
209 | unsigned int param_length, | ||
210 | void *scratch[], | ||
211 | unsigned int scratch_length) | ||
212 | { | ||
213 | const uint64_t *u_hbo = data; | ||
214 | uint64_t *u_nbo; | ||
215 | |||
216 | GNUNET_break (NULL == cls); | ||
217 | if (1 != param_length) | ||
218 | return -1; | ||
219 | u_nbo = GNUNET_new (uint64_t); | ||
220 | scratch[0] = u_nbo; | ||
221 | *u_nbo = GNUNET_htonll (*u_hbo); | ||
222 | param_values[0] = (void *) u_nbo; | ||
223 | param_lengths[0] = sizeof (uint64_t); | ||
224 | param_formats[0] = 1; | ||
225 | return 1; | ||
226 | } | ||
227 | |||
228 | |||
229 | /** | ||
230 | * Generate query parameter for an uint64_t in host byte order. | ||
231 | * | ||
232 | * @param x pointer to the query parameter to pass | ||
233 | */ | ||
234 | struct GNUNET_PQ_QueryParam | ||
235 | GNUNET_PQ_query_param_uint64 (const uint64_t *x) | ||
236 | { | ||
237 | struct GNUNET_PQ_QueryParam res = | ||
238 | { &qconv_uint64, NULL, x, sizeof (*x), 1 }; | ||
239 | return res; | ||
240 | } | ||
241 | |||
242 | |||
243 | /** | ||
244 | * Function called to convert input argument into SQL parameters. | ||
245 | * | ||
246 | * @param cls closure | ||
247 | * @param data pointer to input argument | ||
248 | * @param data_len number of bytes in @a data (if applicable) | ||
249 | * @param[out] param_values SQL data to set | ||
250 | * @param[out] param_lengths SQL length data to set | ||
251 | * @param[out] param_formats SQL format data to set | ||
252 | * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays | ||
253 | * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() | ||
254 | * @param scratch_length number of entries left in @a scratch | ||
255 | * @return -1 on error, number of offsets used in @a scratch otherwise | ||
256 | */ | ||
257 | static int | ||
258 | qconv_rsa_public_key (void *cls, | ||
259 | const void *data, | ||
260 | size_t data_len, | ||
261 | void *param_values[], | ||
262 | int param_lengths[], | ||
263 | int param_formats[], | ||
264 | unsigned int param_length, | ||
265 | void *scratch[], | ||
266 | unsigned int scratch_length) | ||
267 | { | ||
268 | const struct GNUNET_CRYPTO_rsa_PublicKey *rsa = data; | ||
269 | char *buf; | ||
270 | size_t buf_size; | ||
271 | |||
272 | GNUNET_break (NULL == cls); | ||
273 | if (1 != param_length) | ||
274 | return -1; | ||
275 | buf_size = GNUNET_CRYPTO_rsa_public_key_encode (rsa, | ||
276 | &buf); | ||
277 | scratch[0] = buf; | ||
278 | param_values[0] = (void *) buf; | ||
279 | param_lengths[0] = buf_size - 1; /* DB doesn't like the trailing \0 */ | ||
280 | param_formats[0] = 1; | ||
281 | return 1; | ||
282 | } | ||
283 | |||
284 | |||
285 | /** | ||
286 | * Generate query parameter for an RSA public key. The | ||
287 | * database must contain a BLOB type in the respective position. | ||
288 | * | ||
289 | * @param x the query parameter to pass | ||
290 | * @return array entry for the query parameters to use | ||
291 | */ | ||
292 | struct GNUNET_PQ_QueryParam | ||
293 | GNUNET_PQ_query_param_rsa_public_key (const struct GNUNET_CRYPTO_rsa_PublicKey *x) | ||
294 | { | ||
295 | struct GNUNET_PQ_QueryParam res = | ||
296 | { &qconv_rsa_public_key, NULL, (x), 0, 1 }; | ||
297 | return res; | ||
298 | } | ||
299 | |||
300 | |||
301 | /** | ||
302 | * Function called to convert input argument into SQL parameters. | ||
303 | * | ||
304 | * @param cls closure | ||
305 | * @param data pointer to input argument | ||
306 | * @param data_len number of bytes in @a data (if applicable) | ||
307 | * @param[out] param_values SQL data to set | ||
308 | * @param[out] param_lengths SQL length data to set | ||
309 | * @param[out] param_formats SQL format data to set | ||
310 | * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays | ||
311 | * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() | ||
312 | * @param scratch_length number of entries left in @a scratch | ||
313 | * @return -1 on error, number of offsets used in @a scratch otherwise | ||
314 | */ | ||
315 | static int | ||
316 | qconv_rsa_signature (void *cls, | ||
317 | const void *data, | ||
318 | size_t data_len, | ||
319 | void *param_values[], | ||
320 | int param_lengths[], | ||
321 | int param_formats[], | ||
322 | unsigned int param_length, | ||
323 | void *scratch[], | ||
324 | unsigned int scratch_length) | ||
325 | { | ||
326 | const struct GNUNET_CRYPTO_rsa_Signature *sig = data; | ||
327 | char *buf; | ||
328 | size_t buf_size; | ||
329 | |||
330 | GNUNET_break (NULL == cls); | ||
331 | if (1 != param_length) | ||
332 | return -1; | ||
333 | buf_size = GNUNET_CRYPTO_rsa_signature_encode (sig, | ||
334 | &buf); | ||
335 | scratch[0] = buf; | ||
336 | param_values[0] = (void *) buf; | ||
337 | param_lengths[0] = buf_size - 1; /* DB doesn't like the trailing \0 */ | ||
338 | param_formats[0] = 1; | ||
339 | return 1; | ||
340 | } | ||
341 | |||
342 | |||
343 | /** | ||
344 | * Generate query parameter for an RSA signature. The | ||
345 | * database must contain a BLOB type in the respective position. | ||
346 | * | ||
347 | * @param x the query parameter to pass | ||
348 | * @return array entry for the query parameters to use | ||
349 | */ | ||
350 | struct GNUNET_PQ_QueryParam | ||
351 | GNUNET_PQ_query_param_rsa_signature (const struct GNUNET_CRYPTO_rsa_Signature *x) | ||
352 | { | ||
353 | struct GNUNET_PQ_QueryParam res = | ||
354 | { &qconv_rsa_signature, NULL, (x), 0, 1 }; | ||
355 | return res; | ||
356 | } | ||
357 | |||
358 | |||
359 | /** | ||
360 | * Generate query parameter for an absolute time value. | ||
361 | * The database must store a 64-bit integer. | ||
362 | * | ||
363 | * @param x pointer to the query parameter to pass | ||
364 | * @return array entry for the query parameters to use | ||
365 | */ | ||
366 | struct GNUNET_PQ_QueryParam | ||
367 | GNUNET_PQ_query_param_absolute_time (const struct GNUNET_TIME_Absolute *x) | ||
368 | { | ||
369 | return GNUNET_PQ_query_param_uint64 (&x->abs_value_us); | ||
370 | } | ||
371 | |||
372 | |||
373 | /** | ||
374 | * Generate query parameter for an absolute time value. | ||
375 | * The database must store a 64-bit integer. | ||
376 | * | ||
377 | * @param x pointer to the query parameter to pass | ||
378 | */ | ||
379 | struct GNUNET_PQ_QueryParam | ||
380 | GNUNET_PQ_query_param_absolute_time_nbo(const struct GNUNET_TIME_AbsoluteNBO *x) | ||
381 | { | ||
382 | return GNUNET_PQ_query_param_auto_from_type (&x->abs_value_us__); | ||
383 | } | ||
384 | |||
385 | |||
386 | /* end of pq_query_helper.c */ | ||