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) {
    // Overlay struct and print values
    Packet packet;
    packet.start = buffer[0];
    packet.command = buffer[1];
    packet.data = (uint16_t)((buffer[2])| (buffer[3]<<8));
    packet.crc = buffer[4];
    packet.end = buffer[5];
     printf("Start: %u\nCommand: %u\nData: %u\nCRC: %u\nEnd: %u\n", packet.start, packet.command, packet.data, packet.crc, 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;
}