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#include "BluetoothUUID.hpp"
#include <cstring>
#include <iostream>
using namespace tinyb;
BluetoothUUID::BluetoothUUID(const BluetoothUUID &other) {
uuid[0] = other.uuid[0];
uuid[1] = other.uuid[1];
}
BluetoothUUID::BluetoothUUID(const char str[]) {
int len = strlen(str);
const char *err_msg = "UUID does not have a valid format";
if (len == 4 || len == 8) {
/* 16bit or 32bit UUID: number + base UUID */
uuid[0] = strtoul(str, NULL, 16) << 32 | 0x00001000ULL;
uuid[1] = 0x800000805f9b34fbULL;
} else if (len == 36) {
/* 128bit UUID */
char u[37];
strcpy(u, str);
if (u[8] == '-') {
u[8] = ' ';
uuid[0] = strtoul(u + 0, NULL, 16) << 32;
} else {
throw std::invalid_argument(err_msg);
}
if (u[13] == '-') {
u[13] = ' ';
uuid[0] = uuid[0] | strtoul(u + 9, NULL, 16) << 16;
} else throw std::invalid_argument(err_msg);
if (u[18] == '-') {
u[18] = ' ';
uuid[0] = uuid[0] | strtoul(u + 14, NULL, 16);
} else throw std::invalid_argument(err_msg);
if (u[23] == '-') {
u[23] = ' ';
uuid[1] = strtoul(u + 19, NULL, 16) << 48;
} else throw std::invalid_argument(err_msg);
uuid[1] = uuid[1] | strtoul(u + 24, NULL, 16);
} else throw std::invalid_argument(err_msg);
}
BluetoothUUID::BluetoothUUID(const std::string &str) : BluetoothUUID(str.c_str()) {}
std::string BluetoothUUID::get_string()
{
char u[37];
snprintf(u, 37, "%08lx-%04llx-%04llx-%04lx-%012llx",
(uuid[0] >> 32),
((uuid[0] >> 16) & 0xFFFFULL),
(uuid[0] & 0xFFFFULL),
(uuid[1] >> 48),
(uuid[1] & ~(0xFFFFULL << 48)));
return std::string(u);
}
std::string BluetoothUUID::get_short_string()
{
char u[9];
if (is_short()) {
uint32_t suuid = get_short();
if (suuid & 0xFFFF == suuid)
snprintf(u, 9, "%04dx", suuid);
else
snprintf(u, 9, "%08dx", suuid);
return std::string(u);
} else {
return get_string();
}
}
uint32_t BluetoothUUID::get_short() {
if (is_short())
return uuid[0] >> 32;
return 0;
}
bool BluetoothUUID::is_short()
{
if (uuid[1] == 0x800000805f9b34fbULL && uuid[0] & 0xffffffffULL == 0x00001000ULL)
return true;
return false;
}
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