7f94ef3179
* Flipper file format: remove C wrapper * Flipper file format: open append, float, uint32_t as array, delete key, value count * Flipper file format: fix scratchpad location * Flipper file format: add EOL on append * SubGHZ keystore: update encryption type read and write * Flipper File Format: enhanced version * Flipper File Format: fix naming * Flipper File Format: fix "open" subset naming * Flipper File Format: tests * Flipper File Format: file helper naming * SubGHZ keystore: merge with current state of flipper file format * Flipper File Format: update make recipe * Flipper File Format: open new file method
28 lines
778 B
C
28 lines
778 B
C
#include "hex.h"
|
|
|
|
bool hex_char_to_hex_nibble(char c, uint8_t* nibble) {
|
|
if((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f')) {
|
|
if((c >= '0' && c <= '9')) {
|
|
*nibble = c - '0';
|
|
} else if((c >= 'A' && c <= 'F')) {
|
|
*nibble = c - 'A' + 10;
|
|
} else {
|
|
*nibble = c - 'a' + 10;
|
|
}
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool hex_chars_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) &&
|
|
hex_char_to_hex_nibble(low, &low_nibble_value)) {
|
|
*value = (hi_nibble_value << 4) | low_nibble_value;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
} |