Extract Packet Fields from Byte Stream

Code

#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
    Packet myPacket;
    // printf("Output: \n");  
    for (int i =0; i < 6; i++){
        if (i==0){
            myPacket.start = buffer[i];
            printf("Start: %d\n", myPacket.start); 
        }
        if (i==1){
            myPacket.command = buffer[i];
            printf("Command: %d\n", myPacket.command); 
        }
        if (i==2 || i==3){
            uint16_t mask=0; 
            if (i==2){
                mask = mask | buffer[i]; 
                myPacket.data |= mask; 
                // printf("%d", mask); 
            }else {
                mask >>=8; 
                mask = mask | buffer[i]; 
                mask <<=8; 
                myPacket.data |= mask;
                printf("Data: %d\n", myPacket.data); 
                // printf("%d", mask); 
            }
            
        }
        if (i==4){
            myPacket.crc=buffer[i];
            printf("CRC: %d\n", myPacket.crc); 
        }
        if (i==5){
            myPacket.end = buffer[i]; 
            printf("End: %d\n", myPacket.end); 
        }
    }
}

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

Solving Approach