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) {

    uint8_t len = sizeof(buffer);
    uint8_t idx = 0;

    uint8_t start = buffer[idx++];

    uint8_t command = buffer[idx++];

    uint16_t data = ( buffer[idx] ) | (buffer[idx + 1] << 8); idx+=2;

    uint8_t crc = buffer[idx++];

    uint8_t end = buffer[idx++];

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

    // Overlay struct and print values
}

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