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

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