#include "packet_priv.h"

int packet_get_layer(const struct packet *pkt, int idx, struct layer *out)
{
    if (pkt == NULL || out == NULL)
    {
        return -1;
    }

    if (idx < 0 || idx >= pkt->layers_used)
    {
        return -1;
    }

    const struct raw_layer *raw = &pkt->layers[idx];
    out->proto = raw->proto;
    out->header_len = raw->hdr_len;
    out->payload_len = raw->pld_len;
    out->header.raw = raw->hdr_ptr;
    out->payload = raw->pld_ptr;

    return 0;
}