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[nfc] Update code to use `format_hex_pretty` (#9384)

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This commit is contained in:
Jesse Hills
2025-07-09 09:47:42 +12:00
committed by GitHub
parent 691cc5f7dc
commit 78eb236a4a
2 changed files with 6 additions and 25 deletions
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25
esphome/components/nfc/nfc.cpp
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@@ -1,5 +1,6 @@
#include "nfc.h"
#include <cstdio>
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
namespace esphome {
@@ -7,29 +8,9 @@ namespace nfc {
static const char *const TAG = "nfc";
std::string format_uid(std::vector<uint8_t> &uid) {
char buf[(uid.size() * 2) + uid.size() - 1];
int offset = 0;
for (size_t i = 0; i < uid.size(); i++) {
const char *format = "%02X";
if (i + 1 < uid.size())
format = "%02X-";
offset += sprintf(buf + offset, format, uid[i]);
}
return std::string(buf);
}
std::string format_uid(const std::vector<uint8_t> &uid) { return format_hex_pretty(uid, '-', false); }
std::string format_bytes(std::vector<uint8_t> &bytes) {
char buf[(bytes.size() * 2) + bytes.size() - 1];
int offset = 0;
for (size_t i = 0; i < bytes.size(); i++) {
const char *format = "%02X";
if (i + 1 < bytes.size())
format = "%02X ";
offset += sprintf(buf + offset, format, bytes[i]);
}
return std::string(buf);
}
std::string format_bytes(const std::vector<uint8_t> &bytes) { return format_hex_pretty(bytes, ' ', false); }
uint8_t guess_tag_type(uint8_t uid_length) {
if (uid_length == 4) {

6
esphome/components/nfc/nfc.h
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@@ -2,8 +2,8 @@
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
#include "ndef_record.h"
#include "ndef_message.h"
#include "ndef_record.h"
#include "nfc_tag.h"
#include <vector>
@@ -53,8 +53,8 @@ static const uint8_t DEFAULT_KEY[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
static const uint8_t NDEF_KEY[6] = {0xD3, 0xF7, 0xD3, 0xF7, 0xD3, 0xF7};
static const uint8_t MAD_KEY[6] = {0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5};
std::string format_uid(std::vector<uint8_t> &uid);
std::string format_bytes(std::vector<uint8_t> &bytes);
std::string format_uid(const std::vector<uint8_t> &uid);
std::string format_bytes(const std::vector<uint8_t> &bytes);
uint8_t guess_tag_type(uint8_t uid_length);
uint8_t get_mifare_classic_ndef_start_index(std::vector<uint8_t> &data);