Add support for PAC/Stanley tags (#1648)
* Add support for PAC/Stanley tags * Address review comments
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@@ -15,7 +15,7 @@ bool hex_char_to_hex_nibble(char c, uint8_t* nibble) {
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}
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}
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bool hex_chars_to_uint8(char hi, char low, uint8_t* value) {
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bool hex_char_to_uint8(char hi, char low, uint8_t* value) {
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uint8_t hi_nibble_value, low_nibble_value;
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if(hex_char_to_hex_nibble(hi, &hi_nibble_value) &&
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@@ -27,13 +27,29 @@ bool hex_chars_to_uint8(char hi, char low, uint8_t* value) {
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}
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}
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bool hex_chars_to_uint8(const char* value_str, uint8_t* value) {
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bool parse_success = false;
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while(*value_str && value_str[1]) {
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parse_success = hex_char_to_uint8(*value_str, value_str[1], value++);
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if(!parse_success) break;
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value_str += 2;
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}
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return parse_success;
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}
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bool hex_chars_to_uint64(const char* value_str, uint64_t* value) {
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uint8_t* _value = (uint8_t*)value;
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bool parse_success = false;
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for(uint8_t i = 0; i < 8; i++) {
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parse_success = hex_chars_to_uint8(value_str[i * 2], value_str[i * 2 + 1], &_value[7 - i]);
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parse_success = hex_char_to_uint8(value_str[i * 2], value_str[i * 2 + 1], &_value[7 - i]);
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if(!parse_success) break;
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}
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return parse_success;
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}
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void uint8_to_hex_chars(const uint8_t* src, uint8_t* target, int length) {
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const char chars[] = "0123456789ABCDEF";
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while(--length >= 0)
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target[length] = chars[(src[length >> 1] >> ((1 - (length & 1)) << 2)) & 0xF];
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}
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@@ -14,14 +14,22 @@ extern "C" {
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*/
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bool hex_char_to_hex_nibble(char c, uint8_t* nibble);
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/** Convert ASCII hex values to byte
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/** Convert ASCII hex value to byte
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* @param hi hi nibble text
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* @param low low nibble text
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* @param value output value
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*
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* @return bool conversion status
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*/
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bool hex_chars_to_uint8(char hi, char low, uint8_t* value);
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bool hex_char_to_uint8(char hi, char low, uint8_t* value);
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/** Convert ASCII hex values to uint8_t
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* @param value_str ASCII data
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* @param value output value
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*
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* @return bool conversion status
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*/
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bool hex_chars_to_uint8(const char* value_str, uint8_t* value);
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/** Convert ASCII hex values to uint64_t
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* @param value_str ASCII 64 bi data
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@@ -31,6 +39,14 @@ bool hex_chars_to_uint8(char hi, char low, uint8_t* value);
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*/
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bool hex_chars_to_uint64(const char* value_str, uint64_t* value);
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/** Convert uint8_t to ASCII hex values
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* @param src source data
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* @param target output value
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* @param length data length
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*
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*/
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void uint8_to_hex_chars(const uint8_t* src, uint8_t* target, int length);
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#ifdef __cplusplus
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}
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#endif
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