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 pck;
    int iter = 0;

    pck.start = buffer[iter++];
    printf("Start: %d\n",pck.start);

    pck.command = buffer[iter++];
    printf("Command: %d\n",pck.command);

    pck.data = (buffer[iter++]) | buffer[iter++]<<8;
    printf("Data: %d\n",pck.data);

    pck.crc = (buffer[iter++]);
    printf("CRC: %d\n",pck.crc);

    pck.end = (buffer[iter++]);
    printf("End: %d\n",pck.end);


}

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