github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-21 13:53:55 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

fix #2547 - compilation warning error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]

Browse source
This commit is contained in:
iceman1001 2025-02-21 16:33:22 +01:00
commit 4422101243
3 changed files with 18 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

13
armsrc/hitag2.c
View file

@ -821,12 +821,17 @@ static bool hitag2_crypto(uint8_t *rx, const size_t rxlen, uint8_t *tx, size_t *
// stage 1, got UID
if (bCrypto == false) {
uint64_t ui64key = key[0] |
((uint64_t)key[1]) << 8 |
((uint64_t)key[2]) << 16 |
((uint64_t)key[3]) << 24 |
((uint64_t)key[4]) << 32 |
((uint64_t)key[5]) << 40;
uint32_t ui32uid = MemLeToUint4byte(rx);
DBG Dbprintf("hitag2_crypto: key array ");
DBG Dbhexdump(6, key, false);
uint64_t ui64key = key[0] | ((uint64_t)key[1]) << 8 | ((uint64_t)key[2]) << 16 | ((uint64_t)key[3]) << 24 | ((uint64_t)key[4]) << 32 | ((uint64_t)key[5]) << 40;
uint32_t ui32uid = rx[0] | ((uint32_t)rx[1]) << 8 | ((uint32_t)rx[2]) << 16 | ((uint32_t)rx[3]) << 24;
DBG Dbprintf("hitag2_crypto: key=0x%x%x uid=0x%x"
, (uint32_t)((REV64(ui64key)) >> 32)
, (uint32_t)((REV64(ui64key)) & 0xffffffff)