uint8_t compression_scheme; /* 0 if unused */
uint8_t encryption_scheme; /* 0 if unused */
uint8_t checksum_scheme; /* 0 if unused */
uint8_t compression_scheme; /* 0 if unused */
uint8_t encryption_scheme; /* 0 if unused */
uint8_t checksum_scheme; /* 0 if unused */
header->compression_scheme = 0; /* 0 if unused */
header->encryption_scheme = 0; /* 0 if unused */
header->checksum_scheme = 0; /* 0 if unused */
header->compression_scheme = 0; /* 0 if unused */
header->encryption_scheme = 0; /* 0 if unused */
header->checksum_scheme = 0; /* 0 if unused */