54 lines
No EOL
1.9 KiB
C
54 lines
No EOL
1.9 KiB
C
/*
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* This program source code file is part of SystemK, a library in the KTag project.
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*
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* 🛡️ <https://ktag.clubk.club> 🃞
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*
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* Copyright © 2025 Joseph P. Kearney and the KTag developers.
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* There should be a copy of the GNU Affero General Public License in the LICENSE
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* file in the root of this repository. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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const uint8_t BLE_BROADCAST_ADDRESS[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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//! Converts a 6-byte Bluetooth Low Energy address to a human-readable string (for logging).
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/*!
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* \param bd_addr The Bluetooth address as a 6-byte array
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* \return Pointer to a static string containing the formatted address
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*
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* Output format: "XX:XX:XX:XX:XX:XX" where XX are uppercase hexadecimal values
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* \note This function is not reentrant as it uses a static buffer!
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*/
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const char *BLE_ADDR_To_Str(const uint8_t bd_addr[6])
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{
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static char str_addr[18]; // 17 characters + null terminator
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// Convert each byte and add separating colons.
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for (int i = 0; i < 6; i++)
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{
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snprintf(&str_addr[i * 3], sizeof(str_addr) - (i * 3), "%02X", bd_addr[5-i]);
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// Add colon separator except after the last byte.
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if (i < 5)
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{
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str_addr[(i * 3) + 2] = ':';
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}
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}
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str_addr[17] = '\0'; // Ensure null termination.
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return str_addr;
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} |