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Umarsh header check rework reworked. Thanks J for idea!

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Methodius 2023-11-22 17:26:10 +09:00
parent df1d6503c0
commit 63f072a819
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1 changed files with 5 additions and 3 deletions
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8
applications/main/nfc/plugins/supported_cards/umarsh.c
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@ -57,9 +57,11 @@ static bool umarsh_parse(const NfcDevice* device, FuriString* parsed_data) {
//Validate specific for Umarsh ticket sector header
const uint8_t* block_start_ptr = &data->block[ticket_sector_start_block_number].data[0];
uint32_t header = block_start_ptr[0] << 24 | block_start_ptr[1] << 16 |
block_start_ptr[2] << 8 | block_start_ptr[3];
if((header & 0xFFFFFF) != 0xFFFF7F) break;
uint32_t header_part_0 = block_start_ptr[0] << 24 | block_start_ptr[1] << 16 |
block_start_ptr[2] << 8 | block_start_ptr[3];
uint32_t header_part_1 = block_start_ptr[4] << 24 | block_start_ptr[5] << 16 |
block_start_ptr[6] << 8 | block_start_ptr[7];
if((header_part_0 + header_part_1) != 0xFFFFFFFF) break;
// Data parsing from block 1
block_start_ptr = &data->block[ticket_sector_start_block_number + 1].data[0];