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 pack1;
 
printf("Start: %d\n",pack1.start = buffer[0]);

printf("Command: %d\n",pack1.command = buffer[1]);
 
pack1.data = buffer[3];
 
pack1.data=pack1.data<<8;
 
pack1.data=pack1.data|buffer[2];
 
 
printf("Data: %d\n",pack1.data);

printf("CRC: %d\n",pack1.crc = buffer[4]);

printf("End: %d\n",pack1.end = 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;

}