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) {
    uint8_t start   = buffer[0];
    uint8_t command = buffer[1];
    uint16_t data   = (uint16_t)buffer[2] |
                      ((uint16_t)buffer[3] << 8);
    uint8_t crc     = buffer[4];
    uint8_t end     = buffer[5];

    printf("Start: %u\n", start);
    printf("Command: %u\n", command);
    printf("Data: %u\n", data);
    printf("CRC: %u\n", crc);
    printf("End: %u\n", 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