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) {
  Packet packet ; 
  packet.start = buffer[0] ; 
  packet.command = buffer[1] ; 
  packet.data = buffer[3] ; 
  packet.data<<=8 ; 
  packet.data |= buffer[2] ; 
  packet.crc = buffer[4] ; 
  packet.end =buffer[5] ; 
  printf("Start: %d\n" ,packet.start ) ;  
   printf("Command: %d\n" ,packet.command ) ;  
    printf("Data: %d\n" ,packet.data ) ;  
     printf("CRC: %d\n" ,packet.crc ) ;  
      printf("End: %d\n" ,packet.end ) ;  


}

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