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add new method handlers/properties for new location & deployment elements
[systembsd.git] / src / interfaces / timedated / timedated.c
CommitLineData
3b82e3c1 1/*
2 * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
b6ad18ad 17#include <unistd.h>
18#include <limits.h>
c12c41f4 19#include <signal.h>
b6ad18ad 20
a3d2e50f 21#include <sys/types.h>
a8f71719 22#include <sys/time.h>
c8a3e18e 23#include <sys/stat.h>
24#include <errno.h>
a3d2e50f 25#include <time.h>
b6ad18ad 26#include <string.h>
27
28#include <glib/gprintf.h>
8caf1f61 29#include <glib-unix.h>
1066bd36 30#include <glib/gstdio.h>
904d744d 31#include <polkit/polkit.h>
b6ad18ad 32
1e8c7c88 33#include "timedated-gen.h"
a33bcdfa 34#include "timedated.h"
1e8c7c88 35
ed4cf3c8 36#include "../../util.h"
483e90b7 37
c8a3e18e 38#define TZNAME_MAX PATH_MAX
39
b6ad18ad 40GPtrArray *timedated_freeable;
41Timedate1 *timedated_interf;
42
c12c41f4 43GMainLoop *timedated_loop;
44
45guint bus_descriptor;
46gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */
47
03f12ac7 48const gchar *OS_LOCALTIME = "/etc/localtime"; /* current timezone file */
49const gchar *OS_TIMEZONE_PATH = "/usr/share/zoneinfo"; /* path to system timezone files */
50
51struct timezone_checksum_pair {
52
53 gchar *path;
54 gchar *sum;
55 gboolean posix;
56 gboolean right;
57};
58
59static struct timezone_checksum_pair tz_table[5000];
1066bd36 60
1ce41045 61/* --- begin method/property/dbus signal code --- */
b6ad18ad 62
28b86015 63static gboolean
a8f71719 64on_handle_set_time(Timedate1 *td1_passed_interf,
28b86015 65 GDBusMethodInvocation *invoc,
66 const gchar *greet,
67 gpointer data) {
a8f71719 68
69 GVariant *params;
70 gint64 proposed_time, cur_time;
71 const gchar *bus_name;
72 gboolean policykit_auth;
73 check_auth_result is_authed;
74 gboolean relative; /* relative if passed time_t is meant to be added to current time */
644bae40 75 struct timespec *new_time;
a8f71719 76
77 params = g_dbus_method_invocation_get_parameters(invoc);
78 g_variant_get(params, "(xbb)", &proposed_time, &relative, &policykit_auth);
79 bus_name = g_dbus_method_invocation_get_sender(invoc);
80
81 is_authed = polkit_try_auth(bus_name, "org.freedesktop.timedate1.set-time", policykit_auth);
82
83 switch(is_authed) {
84
85 case AUTHORIZED_NATIVELY:
86 case AUTHORIZED_BY_PROMPT:
87 break;
88
89 case UNAUTHORIZED_NATIVELY:
90 case UNAUTHORIZED_FAILED_PROMPT:
91 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EACCES", "Insufficient permissions to set system time.");
92 return FALSE;
93
94 case ERROR_BADBUS:
95 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided bus name is invalid.");
96 return FALSE;
97
98 case ERROR_BADACTION:
99 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided action ID is invalid.");
100 return FALSE;
101
102 case ERROR_GENERIC:
103 default:
104 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set system time for unknown reasons.");
105 return FALSE;
106 }
107
fe959043 108 if(!proposed_time) {
109
110 timedate1_complete_set_time(td1_passed_interf, invoc);
111 return TRUE;
a8f71719 112
fe959043 113 } else if(relative) {
a8f71719 114
115 cur_time = g_get_real_time();
fe959043 116
10ddceeb 117 if(proposed_time < 0 && cur_time + proposed_time > cur_time) {
fe959043 118
119 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EINVAL", "Resultant time out of bounds.");
120 return FALSE;
121
10ddceeb 122 } else if(proposed_time > 0 && cur_time + proposed_time < cur_time) {
fe959043 123
124 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EINVAL", "Resultant time out of bounds.");
125 return FALSE;
126 }
127
644bae40 128 new_time = mktimespec(proposed_time);
fe959043 129
644bae40 130 if(!clock_settime(CLOCK_REALTIME, new_time)) {
fe959043 131
132 timedate1_complete_set_time(td1_passed_interf, invoc);
133 return TRUE;
134
135 } else {
136
137 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set system time for unknown reasons.");
138 return FALSE;
139 }
140
10ddceeb 141 } else if(proposed_time > 0) {
a8f71719 142
a8f71719 143
644bae40 144 new_time = mktimespec(proposed_time);
145
146 if(!clock_settime(CLOCK_REALTIME, new_time)) {
a8f71719 147
148 timedate1_complete_set_time(td1_passed_interf, invoc);
149 return TRUE;
150
151 } else {
152
153 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set system time for unknown reasons.");
154 return FALSE;
155 }
fe959043 156
a8f71719 157 } else {
158
fe959043 159 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EINVAL", "Resultant time out of bounds.");
a8f71719 160 return FALSE;
161 }
28b86015 162}
b6ad18ad 163
28b86015 164static gboolean
a8f71719 165on_handle_set_timezone(Timedate1 *td1_passed_interf,
28b86015 166 GDBusMethodInvocation *invoc,
167 const gchar *greet,
168 gpointer data) {
c8a3e18e 169
170 GVariant *params;
171 gchar *proposed_tz;
172 const gchar *bus_name;
173 gboolean policykit_auth;
174 check_auth_result is_authed;
175
176 gchar *tz_target_path;
177 struct stat *statbuf;
178 extern int errno;
179
180 params = g_dbus_method_invocation_get_parameters(invoc);
181 g_variant_get(params, "(sb)", &proposed_tz, &policykit_auth);
182 bus_name = g_dbus_method_invocation_get_sender(invoc);
183
184 is_authed = polkit_try_auth(bus_name, "org.freedesktop.timedate1.set-timezone", policykit_auth);
185
186 switch(is_authed) {
187
188 case AUTHORIZED_NATIVELY:
189 case AUTHORIZED_BY_PROMPT:
190 break;
191
192 case UNAUTHORIZED_NATIVELY:
193 case UNAUTHORIZED_FAILED_PROMPT:
194 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EACCES", "Insufficient permissions to set timezone.");
195 return FALSE;
196
197 case ERROR_BADBUS:
198 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided bus name is invalid.");
199 return FALSE;
200
201 case ERROR_BADACTION:
202 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided action ID is invalid.");
203 return FALSE;
204
205 case ERROR_GENERIC:
206 default:
207 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set timezone for unknown reasons.");
208 return FALSE;
209 }
210
211 statbuf = (struct stat*) calloc(1, sizeof(struct stat));
212 tz_target_path = (gchar *) calloc(1, TZNAME_MAX);
213
214 g_ptr_array_add(timedated_freeable, statbuf);
215 g_ptr_array_add(timedated_freeable, tz_target_path);
216
7a7c9176 217 strlcat(tz_target_path, OS_TIMEZONE_PATH, TZNAME_MAX);
c8a3e18e 218 strlcat(tz_target_path, "/", TZNAME_MAX);
219 strlcat(tz_target_path, proposed_tz, TZNAME_MAX);
220
0b7afeee 221 if(strstr(tz_target_path, "../")) {
222
223 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EBADF", "Provided timezone is invalid.");
224 return FALSE;
225 }
c8a3e18e 226
227 if(!statbuf)
228 return FALSE;
229
230 if(lstat(tz_target_path, statbuf)) {
231
232 switch(errno) {
233
234 case ENOENT:
235 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ENOENT", "Specified timezone does not exist.");
236 break;
237
238 default:
239 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EBADF", "Specified timezone is invalid.");
240 break;
241 }
242
243 return FALSE;
244 }
245
246 if(!S_ISREG(statbuf->st_mode)) {
247
248 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EBADF", "Specified path is of an inappropriate type.");
249 return FALSE;
250 }
251
252 memset(statbuf, 0, sizeof statbuf);
253
7a7c9176 254 if(!lstat(OS_LOCALTIME, statbuf))
255 if(remove(OS_LOCALTIME))
c8a3e18e 256 return FALSE;
257
7a7c9176 258 if(symlink(tz_target_path, OS_LOCALTIME))
c8a3e18e 259 return FALSE;
260
261
262 timedate1_complete_set_timezone(td1_passed_interf, invoc);
263
264 return TRUE;
28b86015 265}
266
267static gboolean
a8f71719 268on_handle_set_local_rtc(Timedate1 *td1_passed_interf,
28b86015 269 GDBusMethodInvocation *invoc,
270 const gchar *greet,
271 gpointer data) {
0b7afeee 272
06407d3e 273 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ENODEV", "Unix RTC must be in UTC.");
0b7afeee 274 return TRUE;
28b86015 275}
276
277static gboolean
a8f71719 278on_handle_set_ntp(Timedate1 *td1_passed_interf,
28b86015 279 GDBusMethodInvocation *invoc,
280 const gchar *greet,
281 gpointer data) {
0280f7d2 282
283 GVariant *params;
284 const gchar *bus_name;
285 gboolean policykit_auth;
286 check_auth_result is_authed;
287
0e955e92 288 /* revert to rcctl when 5.7 rolls around */
0280f7d2 289 gint ntpd_notrunning, ntpd_notenabled; /* this logic flip is due to rcctl returning 0 on success,
290 * in this case an error means ntpd is not running or not enabled */
291 gboolean proposed_ntpstate;
292 GError *sh_errors;
293
294 extern int errno;
295
296 params = g_dbus_method_invocation_get_parameters(invoc);
297 g_variant_get(params, "(bb)", &proposed_ntpstate, &policykit_auth);
298 bus_name = g_dbus_method_invocation_get_sender(invoc);
299
300 is_authed = polkit_try_auth(bus_name, "org.freedesktop.timedate1.set-ntp", policykit_auth);
301
302 switch(is_authed) {
303
304 case AUTHORIZED_NATIVELY:
305 case AUTHORIZED_BY_PROMPT:
306 break;
307
308 case UNAUTHORIZED_NATIVELY:
309 case UNAUTHORIZED_FAILED_PROMPT:
310 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EACCES", "Insufficient permissions to toggle the NTP daemon.");
311 return FALSE;
312
313 case ERROR_BADBUS:
314 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided bus name is invalid.");
315 return FALSE;
316
317 case ERROR_BADACTION:
318 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided action ID is invalid.");
319 return FALSE;
320
321 case ERROR_GENERIC:
322 default:
323 g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to toggle the NTP daemon for unknown reasons.");
324 return FALSE;
325 }
326
327 ntpd_notrunning = 0; /* GLib does not bother asserting the passed return value int to zero */
328 ntpd_notenabled = 0; /* if the program's exit status is also zero, hence this decl. */
329
0e955e92 330 if((ntpd_notrunning = system("/etc/rc.d/ntpd check > /dev/null 2>&1")) == -1)
0280f7d2 331 return FALSE;
332
0e955e92 333 if((ntpd_notenabled = system("/etc/rc.d/ntpd status > /dev/null 2>&1")) == -1)
0280f7d2 334 return FALSE;
335
336 if(proposed_ntpstate) {
337
338 if(ntpd_notrunning)
0e955e92 339 system("/etc/rc.d/ntpd -f start > /dev/null 2>&1");
0280f7d2 340
341 if(ntpd_notenabled)
0e955e92 342 system("/etc/rc.d/ntpd enable > /dev/null 2>&1");
0280f7d2 343
344 } else {
345
346 if(!ntpd_notrunning)
0e955e92 347 system("/etc/rc.d/ntpd stop > /dev/null 2>&1");
0280f7d2 348
349 if(!ntpd_notenabled)
0e955e92 350 system("/etc/rc.d/ntpd disable > /dev/null 2>&1");
0280f7d2 351 }
352
353 timedate1_complete_set_ntp(td1_passed_interf, invoc);
354
355 return TRUE;
28b86015 356}
5b56a1e8 357/* NOTE: you should be using gobject->set_property() for these ! */
28b86015 358const gchar *
359our_get_timezone() {
360
1066bd36 361 GStatBuf *stat_zoneinfo;
03f12ac7 362 gchar *find_cmd, *readlink_path, *ret, *argvp, *hash_to_match;
363 gint argcp;
364 GError *err;
365 struct timezone_checksum_pair tmp;
1066bd36 366
03f12ac7 367 find_cmd = (gchar *) g_malloc0(2048);
368 stat_zoneinfo = (GStatBuf *) g_malloc0(8192);
369 err = (GError *) g_malloc0(2048);
1066bd36 370
371 if(g_stat(OS_LOCALTIME, stat_zoneinfo)) {
372
373 g_printf("could not read from %s! please symlink or copy a timezone file from %s to %s!\n", OS_LOCALTIME, OS_TIMEZONE_PATH, OS_LOCALTIME);
374 ret = NULL;
375
376 } else if(g_file_test(OS_LOCALTIME, G_FILE_TEST_IS_SYMLINK)) {
377
378 readlink_path = g_file_read_link(OS_LOCALTIME, &err);
03f12ac7 379
380 gchar *split[2] = { readlink_path, "" };
381 tmp = parse_timezone_path(split);
382
383 ret = tmp.path;
1066bd36 384
385 if(readlink_path)
386 g_free(readlink_path);
387
388 } else {
389
390 g_printf("%s is not a symlink! attempting to match checksums in %s...\n", OS_LOCALTIME, OS_TIMEZONE_PATH);
03f12ac7 391 hash_to_match = get_file_sha256(OS_LOCALTIME);
392
644bae40 393 /* ret = lookup_hash(hash_to_match); */
394 return FALSE; /* TODO fix me for real */
03f12ac7 395
396 if(hash_to_match)
397 g_free(hash_to_match);
1066bd36 398 }
1a383289 399
1066bd36 400 return ret;
28b86015 401}
402
5b56a1e8 403/* Unix time is in UTC. */
28b86015 404gboolean
405our_get_local_rtc() {
406
5b56a1e8 407 return FALSE;
28b86015 408}
409
410gboolean
411our_get_can_ntp() {
412
5b56a1e8 413 /* ntpd is part of the default install */
28b86015 414
5b56a1e8 415 return TRUE;
28b86015 416}
417
418gboolean
419our_get_ntp() {
420
1a383289 421 int system_ret;
28b86015 422
5b56a1e8 423 system_ret = system("/etc/rc.d/ntpd check > /dev/null 2>&1");
1a383289 424
425 if(system_ret)
426 return FALSE;
427
428 return TRUE;
28b86015 429}
b6ad18ad 430
5b56a1e8 431/* undocumented feature present in systemd */
28b86015 432gboolean
433our_get_ntpsynchronized() {
434
5b56a1e8 435 gboolean ntp;
436 ntp = our_get_ntp();
b6ad18ad 437
5b56a1e8 438 return ntp;
28b86015 439}
b6ad18ad 440
5b56a1e8 441/* undocumented feature present in systemd */
28b86015 442guint64
443our_get_time_usec() {
b6ad18ad 444
28b86015 445 guint64 ret = 0;
b6ad18ad 446
28b86015 447 return ret;
448}
449
5b56a1e8 450/* undocumented feature present in systemd */
28b86015 451guint64
452our_get_rtc_time_usec() {
453
454 guint64 ret = 0;
455
456 return ret;
457}
b6ad18ad 458
1ce41045 459/* --- end method/property/dbus signal code, begin bus/name handlers --- */
b6ad18ad 460
461static void timedated_on_bus_acquired(GDBusConnection *conn,
462 const gchar *name,
463 gpointer user_data) {
464
254ceec0 465 g_printf("got bus/name, exporting %s's interface...\n", name);
b6ad18ad 466
467 timedated_interf = timedate1_skeleton_new();
468
28b86015 469 /* attach function pointers to generated struct's method handlers */
470 g_signal_connect(timedated_interf, "handle-set-time", G_CALLBACK(on_handle_set_time), NULL);
471 g_signal_connect(timedated_interf, "handle-set-timezone", G_CALLBACK(on_handle_set_timezone), NULL);
472 g_signal_connect(timedated_interf, "handle-set-local-rtc", G_CALLBACK(on_handle_set_local_rtc), NULL);
473 g_signal_connect(timedated_interf, "handle-set-ntp", G_CALLBACK(on_handle_set_ntp), NULL);
03f12ac7 474
28b86015 475 /* set our properties before export */
5b56a1e8 476
28b86015 477 timedate1_set_timezone(timedated_interf, our_get_timezone());
478 timedate1_set_local_rtc(timedated_interf, our_get_local_rtc());
479 timedate1_set_can_ntp(timedated_interf, our_get_can_ntp());
480 timedate1_set_ntp(timedated_interf, our_get_ntp());
481 timedate1_set_ntpsynchronized(timedated_interf, our_get_ntpsynchronized());
482 timedate1_set_time_usec(timedated_interf, our_get_time_usec());
483 timedate1_set_rtctime_usec(timedated_interf, our_get_rtc_time_usec());
484
5b56a1e8 485 /* WIP
486
487 timedated_interf->get_timezone = our_get_timezone();
488 timedated_interf->get_local_rtc = our_get_local_rtc();
489 timedated_interf->get_can_ntp = our_get_can_ntp();
490 timedated_interf->get_ntp = our_get_ntp();
491 timedated_interf->get_ntpsynchronized = our_get_ntpsynchronized();
492 timedated_interf->get_time_usec = our_get_time_usec();
493 timedated_interf->get_rtctime_usec = our_get_rtc_time_usec(); */
494
b6ad18ad 495 if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf),
496 conn,
497 "/org/freedesktop/timedate1",
498 NULL)) {
499
509599f0 500 g_printf("failed to export %s's interface!\n", name);
501 timedated_mem_clean();
502
503 } else {
504
505 dbus_interface_exported = TRUE;
506 g_printf("exported %s's interface on the system bus...\n", name);
b6ad18ad 507 }
509599f0 508}
509
510static void timedated_on_name_acquired(GDBusConnection *conn,
90f54407 511 const gchar *name,
509599f0 512 gpointer user_data) {
b6ad18ad 513
509599f0 514 g_printf("success!\n");
b6ad18ad 515}
516
b6ad18ad 517static void timedated_on_name_lost(GDBusConnection *conn,
518 const gchar *name,
519 gpointer user_data) {
520
509599f0 521 if(!conn) {
b6ad18ad 522
509599f0 523 g_printf("failed to connect to the system bus while trying to acquire name '%s': either dbus-daemon isn't running or we don't have permission to push names and/or their interfaces to it.\n", name);
524 timedated_mem_clean();
525 }
b6ad18ad 526
509599f0 527 g_print("lost name %s, exiting...\n", name);
528
529 timedated_mem_clean();
b6ad18ad 530}
531
b70beb08 532/* --- end bus/name handlers, begin misc unix functions --- */
533
509599f0 534/* safe call to clean and then exit
535 * this stops our GMainLoop safely before letting main() return */
b70beb08 536void timedated_mem_clean() {
537
341587db 538 g_printf("exiting...\n");
539
540 if(dbus_interface_exported)
541 g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf));
542
543 if(g_main_loop_is_running(timedated_loop))
544 g_main_loop_quit(timedated_loop);
545
b70beb08 546}
547
712eb329 548/* wrapper for glib's unix signal handling; called only once if terminating signal is raised against us */
549gboolean unix_sig_terminate_handler(gpointer data) {
550
551 g_printf("caught SIGINT/HUP/TERM, exiting\n");
552
553 timedated_mem_clean();
554 return G_SOURCE_REMOVE;
555}
556
2ef2cfe1 557void set_signal_handlers() {
558
559 /* we don't care about its descriptor, we never need to unregister these */
560 g_unix_signal_add(SIGINT, unix_sig_terminate_handler, NULL);
561 g_unix_signal_add(SIGHUP, unix_sig_terminate_handler, NULL);
562 g_unix_signal_add(SIGTERM, unix_sig_terminate_handler, NULL);
563}
564
1e8c7c88 565int main() {
b6ad18ad 566
9728ae1f 567 set_signal_handlers();
568
644bae40 569 /*if(!build_lookup_table())
570 return 1; */
03f12ac7 571
90f54407 572 timedated_loop = g_main_loop_new(NULL, TRUE);
573 timedated_freeable = g_ptr_array_new();
b6ad18ad 574
90f54407 575 bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
b6ad18ad 576 "org.freedesktop.timedate1",
577 G_BUS_NAME_OWNER_FLAGS_NONE,
578 timedated_on_bus_acquired,
579 timedated_on_name_acquired,
580 timedated_on_name_lost,
581 NULL,
582 NULL);
583
90f54407 584 g_main_loop_run(timedated_loop);
9728ae1f 585 /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
90f54407 586 g_main_loop_unref(timedated_loop);
b6ad18ad 587
9728ae1f 588 /* guaranteed unownable */
90f54407 589 g_bus_unown_name(bus_descriptor);
b6ad18ad 590
9728ae1f 591 /* at this point no operations can occur with our data, it is safe to free it + its container */
592 g_ptr_array_free(timedated_freeable, TRUE);
b6ad18ad 593
90f54407 594 return 0;
1e8c7c88 595}
1066bd36 596
03f12ac7 597static struct timezone_checksum_pair parse_timezone_path(gchar **pair) {
1066bd36 598
03f12ac7 599 gchar *prefix_pattern, *right_prefix_pattern, *posix_prefix_pattern, *lean_path;
1066bd36 600 GRegex *prefix, *posix, *right;
601 GError *err = NULL;
03f12ac7 602 struct timezone_checksum_pair ret = { NULL, NULL, FALSE, FALSE };
1066bd36 603
03f12ac7 604 if(!pair[0])
605 return ret;
1066bd36 606
607 prefix_pattern = (gchar *) g_malloc0(4096);
03f12ac7 608 right_prefix_pattern = (gchar *) g_malloc0(4096);
609 posix_prefix_pattern = (gchar *) g_malloc0(4096);
610
611 g_sprintf(prefix_pattern, "%s/", OS_TIMEZONE_PATH);
612 g_sprintf(posix_prefix_pattern, "%s/posix/", OS_TIMEZONE_PATH);
613 g_sprintf(right_prefix_pattern, "%s/right/", OS_TIMEZONE_PATH);
1066bd36 614
615 prefix = g_regex_new(prefix_pattern, 0, 0, &err);
03f12ac7 616 posix = g_regex_new(posix_prefix_pattern, 0, 0, &err);
617 right = g_regex_new(right_prefix_pattern, 0, 0, &err);
618
619 if(g_regex_match_full(posix, pair[0], -1, 0, G_REGEX_MATCH_NOTEMPTY, NULL, NULL)) {
620
621 ret.posix = TRUE;
622 lean_path = g_regex_replace_literal(posix, pair[0], -1, 0, "", G_REGEX_MATCH_NOTEMPTY, NULL);
623
624 } else if(g_regex_match_full(right, pair[0], -1, 0, G_REGEX_MATCH_NOTEMPTY, NULL, NULL)) {
625
626 ret.right = TRUE;
627 lean_path = g_regex_replace_literal(right, pair[0], -1, 0, "", G_REGEX_MATCH_NOTEMPTY, NULL);
628
629 } else
630 lean_path = g_regex_replace_literal(prefix, pair[0], -1, 0, "", G_REGEX_MATCH_NOTEMPTY, NULL);
631
632 ret.path = lean_path;
633
634 ret.sum = g_malloc0(256);
635 g_strlcpy(ret.sum, pair[1], 66);
1066bd36 636
637 g_regex_unref(prefix);
638 g_regex_unref(right);
639 g_regex_unref(posix);
640
03f12ac7 641 return ret;
642}
643
644bae40 644/* TODO need to deconstruct tz_table on exit
03f12ac7 645static gboolean build_lookup_table() {
646
647 gchar *find_cmd, **map_pairs, *find_output, *path_buf, *sum_buf, **entry_buf;
648 GError *err;
649 gboolean ret;
650 gint i;
651
652 i = 0;
653 err = NULL;
654 ret = TRUE;
655
656 find_cmd = (gchar *) g_malloc0(4096);
657 find_output = (gchar *) g_malloc0(1000000);
658
659 g_sprintf(find_cmd, "/bin/sh -c \"find %s -type f -exec cksum -a sha256 {} \\; | sed -E 's/SHA256 \\(//g' | sed -E 's/\\) = /=/g'\"", OS_TIMEZONE_PATH);
660
661 if(!g_spawn_command_line_sync(find_cmd, &find_output, NULL, NULL, &err)) {
662
663 g_printf("error running `%s`\n", find_cmd);
664 ret = FALSE;
665 }
666
667 map_pairs = g_strsplit(find_output, "\n", INT_MAX);
668
669 while(map_pairs[i] && (entry_buf = g_strsplit(map_pairs[i], "=", INT_MAX))) {
670
671 tz_table[i] = parse_timezone_path(entry_buf);
672
673 g_strfreev(entry_buf);
674 i++;
675 }
676
677 g_free(find_output);
678 g_free(find_cmd);
679 g_free(map_pairs);
680
681 return ret;
682}
683
684static gchar *lookup_hash(gchar *hash) {
685
686 gint i = 0;
687
688 while(tz_table[i].sum)
689 if(!g_strcmp0(tz_table[i].sum, hash))
690 return tz_table[i].path;
691 else
692 i++;
693
694 return NULL;
644bae40 695}*/
696
697/* takes number of microseconds since epoch and returns a
698 * ptr to a timespec suitable to be passed to clock_settime(3)
699 */
700static struct timespec* mktimespec(gint64 us) {
701
702 long nanoseconds;
703 time_t seconds;
704
705 gint64 div_buf_remainder, div_buf_s, div_buf_ns;
706 struct timespec *ret;
707
708 div_buf_s = (us / 1000000); /* us / 10^6 = s */
709 div_buf_remainder = (us % 1000000); /* fraction of second lost from prev. line */
710 div_buf_ns = div_buf_remainder * 1000; /* us * 10^3 = ns */
711
712 seconds = (time_t) div_buf_s; /* porting note: most systems use 32 bit time, adjust accordingly */
713 nanoseconds = (long) div_buf_ns;
714
715 ret = (struct timespec *) calloc(1, sizeof(struct timespec));
716
717 ret->tv_sec = seconds;
718 ret->tv_nsec = nanoseconds;
719
720 g_ptr_array_add(timedated_freeable, ret);
721
722 return ret;
1066bd36 723}
google summer of code 2014 project