stellar-stellar/src/packet/packet_layer.cpp

#include "packet_priv.h"
#include "packet_utils.h"

int packet_get_layer_by_idx(const struct packet *pkt, int idx, struct layer *out)
{
    const struct raw_layer *raw = packet_get_raw_layer(pkt, idx);
    if (raw == NULL)
    {
        return -1;
    }
    else
    {
        layer_convert(raw, out);
        return 0;
    }
}