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move byte operations to commonutils

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merlokk 2021-07-25 20:03:15 +03:00
commit 8db2325b13
5 changed files with 75 additions and 39 deletions
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60
common/commonutil.c
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@ -129,6 +129,66 @@ uint64_t bytes_to_num(uint8_t *src, size_t len) {
return num;
}
uint16_t MemLeToUint2byte(uint8_t *data) {
return (data[1] << 8) + data[0];
}
uint32_t MemLeToUint3byte(uint8_t *data) {
return (data[2] << 16) + (data[1] << 8) + data[0];
}
uint32_t MemLeToUint4byte(uint8_t *data) {
return (data[3] << 24) + (data[2] << 16) + (data[1] << 8) + data[0];
}
uint16_t MemBeToUint2byte(uint8_t *data) {
return (data[0] << 8) + data[1];
}
uint32_t MemBeToUint3byte(uint8_t *data) {
return (data[0] << 16) + (data[1] << 8) + data[2];
}
uint32_t MemBeToUint4byte(uint8_t *data) {
return (data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3];
}
void Uint2byteToMemLe(uint8_t *data, uint16_t value) {
data[1] = (value >> 8) & 0xff;
data[0] = value & 0xff;
}
void Uint3byteToMemLe(uint8_t *data, uint32_t value) {
data[2] = (value >> 16) & 0xff;
data[1] = (value >> 8) & 0xff;
data[0] = value & 0xff;
}
void Uint4byteToMemLe(uint8_t *data, uint32_t value) {
data[3] = (value >> 24) & 0xff;
data[2] = (value >> 16) & 0xff;
data[1] = (value >> 8) & 0xff;
data[0] = value & 0xff;
}
void Uint2byteToMemBe(uint8_t *data, uint16_t value) {
data[0] = (value >> 8) & 0xff;
data[1] = value & 0xff;
}
void Uint3byteToMemBe(uint8_t *data, uint32_t value) {
data[0] = (value >> 16) & 0xff;
data[1] = (value >> 8) & 0xff;
data[2] = value & 0xff;
}
void Uint4byteToMemBe(uint8_t *data, uint32_t value) {
data[0] = (value >> 24) & 0xff;
data[1] = (value >> 16) & 0xff;
data[2] = (value >> 8) & 0xff;
data[3] = value & 0xff;
}
// RotateLeft - Ultralight, Desfire
void rol(uint8_t *data, const size_t len) {
uint8_t first = data[0];