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 values;
    values.start = *(buffer);
    values.command = *(buffer + 1);
    values.data = *(buffer+3) << 8 |*(buffer + 2);
    values.crc = *(buffer + 4);
    values.end = *(buffer + 5);
    printf("Start: %d\n", values.start);
    printf("Command: %d\n", values.command);
    printf("Data: %d\n", values.data);
    printf("CRC: %d\n", values.crc);
    printf("End: %d", values.end);

}

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