79. Extract Packet Fields from Byte Stream

#include <stdio.h>
#include <stdint.h>

typedef struct {
    uint8_t start;
    uint8_t command;
    uint16_t data;
    uint8_t crc;
    uint8_t end;
} Packet;

void print_packet_fields(uint8_t *buffer) {
    // Overlay struct and print values
  printf("Start: %d\n",*buffer);
  printf("Command: %d\n",*(buffer+1));
  printf("Data: %u\n",*(buffer+2)|*(buffer+3)<<8);
  printf("CRC: %d\n",*(buffer+4));
  printf("End: %d",*(buffer+5));
}

int main() {
    uint8_t buffer[6];
    for (int i = 0; i < 6; i++) {
        scanf("%hhu", &buffer[i]);
    }
    print_packet_fields(buffer);
    return 0;
}