tor-android/external/badvpn_dns/examples/ncdudevmanager_test.c

162 lines
4.8 KiB
C

/**
* @file ncdudevmanager_test.c
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <misc/debug.h>
#include <system/BTime.h>
#include <base/BLog.h>
#include <system/BReactor.h>
#include <system/BUnixSignal.h>
#include <system/BProcess.h>
#include <system/BNetwork.h>
#include <udevmonitor/NCDUdevManager.h>
BReactor reactor;
BUnixSignal usignal;
BProcessManager manager;
NCDUdevManager umanager;
NCDUdevClient client;
static void signal_handler (void *user, int signo);
static void client_handler (void *unused, char *devpath, int have_map, BStringMap map);
int main (int argc, char **argv)
{
if (!(argc == 1 || (argc == 2 && !strcmp(argv[1], "--no-udev")))) {
fprintf(stderr, "Usage: %s [--no-udev]\n", (argc > 0 ? argv[0] : NULL));
goto fail0;
}
int no_udev = (argc == 2);
if (!BNetwork_GlobalInit()) {
DEBUG("BNetwork_GlobalInit failed");
goto fail0;
}
BTime_Init();
BLog_InitStdout();
if (!BReactor_Init(&reactor)) {
DEBUG("BReactor_Init failed");
goto fail1;
}
sigset_t set;
sigemptyset(&set);
sigaddset(&set, SIGINT);
sigaddset(&set, SIGTERM);
sigaddset(&set, SIGHUP);
if (!BUnixSignal_Init(&usignal, &reactor, set, signal_handler, NULL)) {
fprintf(stderr, "BUnixSignal_Init failed\n");
goto fail2;
}
if (!BProcessManager_Init(&manager, &reactor)) {
DEBUG("BProcessManager_Init failed");
goto fail3;
}
NCDUdevManager_Init(&umanager, no_udev, &reactor, &manager);
NCDUdevClient_Init(&client, &umanager, NULL, client_handler);
BReactor_Exec(&reactor);
NCDUdevClient_Free(&client);
NCDUdevManager_Free(&umanager);
BProcessManager_Free(&manager);
fail3:
BUnixSignal_Free(&usignal, 0);
fail2:
BReactor_Free(&reactor);
fail1:
BLog_Free();
fail0:
DebugObjectGlobal_Finish();
return 1;
}
static void signal_handler (void *user, int signo)
{
if (signo == SIGHUP) {
fprintf(stderr, "received SIGHUP, restarting client\n");
NCDUdevClient_Free(&client);
NCDUdevClient_Init(&client, &umanager, NULL, client_handler);
} else {
fprintf(stderr, "received %s, exiting\n", (signo == SIGINT ? "SIGINT" : "SIGTERM"));
// exit event loop
BReactor_Quit(&reactor, 1);
}
}
void client_handler (void *unused, char *devpath, int have_map, BStringMap map)
{
printf("event %s\n", devpath);
if (!have_map) {
printf(" no map\n");
} else {
printf(" map:\n");
const char *name = BStringMap_First(&map);
while (name) {
printf(" %s=%s\n", name, BStringMap_Get(&map, name));
name = BStringMap_Next(&map, name);
}
}
const BStringMap *cache_map = NCDUdevManager_Query(&umanager, devpath);
if (!cache_map) {
printf(" no cache\n");
} else {
printf(" cache:\n");
const char *name = BStringMap_First(cache_map);
while (name) {
printf(" %s=%s\n", name, BStringMap_Get(cache_map, name));
name = BStringMap_Next(cache_map, name);
}
}
if (have_map) {
BStringMap_Free(&map);
}
free(devpath);
}