int main(int argc, char * const *argv)
{
if (argc == 2) {
return do_crc(argv[1], 0);
} else if ((argc == 4) && (strcmp(argv[1], "-v") == 0)) {
char *endptr, *nptr = argv[2];
unsigned ver = strtoul(nptr, &endptr, 0);
if (*nptr != '\0' && *endptr == '\0')
return do_crc(argv[3], ver);
}
fprintf(stderr, "Usage: crcit [-v version] <image>\n");
return EXIT_FAILURE;
}
int main()
{
const size_t data_size = (char *)main_end - (char *)main;
CRC_BYTE buffer[data_size + sizeof (CRC_STATE)];
printf(DEB("data_size = 0x%x\n"), data_size);
memcpy(buffer, main, data_size);
add_crc(0, buffer, sizeof buffer, crc32ieee8023);
fprintbuf(stdout, sizeof buffer, buffer, DEB(""));
printf(DEB("do_crc(buffer) -> 0x%08x\n"),
do_crc(0, buffer, data_size, crc32ieee8023));
printf(DEB("do_crc(buffer + CRC) -> 0x%08x\n"),
do_crc(0, buffer, sizeof buffer, crc32ieee8023));
}
static void packet_finalize(void)
{
u16 crc16;
crc16 = do_crc(0, packet.buffer, packet_size - sizeof(u16));
if(flags.hanmode){
packet.han.crc16 = crc16;
}
else{
packet.pbl.crc16 = crc16;
}
}
unsigned short crc_16(unsigned char* ptr, int length, unsigned short start)
{
unsigned short crc;
crc = start;
while (length)
{
crc = do_crc(crc, *ptr);
ptr++;
length--;
}
return crc;
}
static int packet_check()
{
u16 rcrc16, crc16 = do_crc(0, (u8 *) packet.buffer, packet_size - sizeof(u16));
rcrc16 = (flags.hanmode) ? packet.han.crc16 : packet.pbl.crc16;
debug(DEBUG_ACTION, "Rx CRC: 0x%04X, Calc CRC 0x%04X", rcrc16, crc16);
if(crc16 == rcrc16)
return PASS;
else
return FAIL;
}