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Add support for PAC/Stanley tags (#1648)

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* Add support for PAC/Stanley tags
* Address review comments
This commit is contained in:
Sebastian Mauer
2022-08-29 16:04:17 +01:00
committed by GitHub
parent ffa3ff5e7c
commit 1350dcaf63
10 changed files with 287 additions and 6 deletions
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20
lib/toolbox/hex.c
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@@ -15,7 +15,7 @@ bool hex_char_to_hex_nibble(char c, uint8_t* nibble) {
}
}
bool hex_chars_to_uint8(char hi, char low, uint8_t* value) {
bool hex_char_to_uint8(char hi, char low, uint8_t* value) {
uint8_t hi_nibble_value, low_nibble_value;
if(hex_char_to_hex_nibble(hi, &hi_nibble_value) &&
@@ -27,13 +27,29 @@ bool hex_chars_to_uint8(char hi, char low, uint8_t* value) {
}
}
bool hex_chars_to_uint8(const char* value_str, uint8_t* value) {
bool parse_success = false;
while(*value_str && value_str[1]) {
parse_success = hex_char_to_uint8(*value_str, value_str[1], value++);
if(!parse_success) break;
value_str += 2;
}
return parse_success;
}
bool hex_chars_to_uint64(const char* value_str, uint64_t* value) {
uint8_t* _value = (uint8_t*)value;
bool parse_success = false;
for(uint8_t i = 0; i < 8; i++) {
parse_success = hex_chars_to_uint8(value_str[i * 2], value_str[i * 2 + 1], &_value[7 - i]);
parse_success = hex_char_to_uint8(value_str[i * 2], value_str[i * 2 + 1], &_value[7 - i]);
if(!parse_success) break;
}
return parse_success;
}
void uint8_to_hex_chars(const uint8_t* src, uint8_t* target, int length) {
const char chars[] = "0123456789ABCDEF";
while(--length >= 0)
target[length] = chars[(src[length >> 1] >> ((1 - (length & 1)) << 2)) & 0xF];
}