mirror of https://github.com/labapart/gattlib
120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/*
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*
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* GattLib - GATT Library
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*
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* Copyright (C) 2021 Olivier Martin <olivier@labapart.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG
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#include <syslog.h>
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#endif
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#include "gattlib.h"
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#define BLE_SCAN_TIMEOUT 60
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static const char* adapter_name;
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static void ble_advertising_device(gattlib_adapter_t* adapter, const char* addr, const char* name, void *user_data) {
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gattlib_advertisement_data_t *advertisement_data;
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size_t advertisement_data_count;
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uint16_t manufacturer_id;
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uint8_t *manufacturer_data;
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size_t manufacturer_data_size;
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int ret;
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ret = gattlib_get_advertisement_data_from_mac(adapter, addr,
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&advertisement_data, &advertisement_data_count,
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&manufacturer_id, &manufacturer_data, &manufacturer_data_size);
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if (ret != 0) {
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return;
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}
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if (name) {
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printf("Device %s - '%s': ", addr, name);
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} else {
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printf("Device %s: ", addr);
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}
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for (size_t i = 0; i < manufacturer_data_size; i++) {
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printf("%02x ", manufacturer_data[i]);
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}
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printf("\n");
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}
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static void* ble_task(void *arg) {
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gattlib_adapter_t* adapter;
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int ret;
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ret = gattlib_adapter_open(adapter_name, &adapter);
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if (ret) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to open adapter.");
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return NULL;
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}
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ret = gattlib_adapter_scan_enable_with_filter(adapter,
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NULL, /* Do not filter on any specific Service UUID */
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0 /* RSSI Threshold */,
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GATTLIB_DISCOVER_FILTER_NOTIFY_CHANGE, /* Notify change of advertising data/RSSI */
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ble_advertising_device,
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0, /* timeout=0 means infinite loop */
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NULL /* user_data */);
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if (ret) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to scan.");
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goto EXIT;
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}
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gattlib_adapter_scan_disable(adapter);
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puts("Scan completed");
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EXIT:
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gattlib_adapter_close(adapter);
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return NULL;
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}
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int main(int argc, const char *argv[]) {
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int ret;
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if (argc == 1) {
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adapter_name = NULL;
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} else if (argc == 2) {
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adapter_name = argv[1];
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} else {
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GATTLIB_LOG(GATTLIB_ERROR, "%s [<bluetooth-adapter>]", argv[0]);
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return 1;
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}
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG
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openlog("gattlib_advertisement_dat", LOG_CONS | LOG_NDELAY | LOG_PERROR, LOG_USER);
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setlogmask(LOG_UPTO(LOG_INFO));
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#endif
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ret = gattlib_mainloop(ble_task, NULL);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to create gattlib mainloop");
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}
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return ret;
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}
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