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) {
    Packet Packet;

    Packet.start = *(buffer);
    Packet.command = *(buffer + 1);
    Packet.data = (uint16_t)(*(buffer + 3) << 8) | (*(buffer + 2));
    Packet.crc = buffer[4];
    Packet.end = buffer[5];

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