// EnclaveHello.cpp

#include "EnclaveHello_t.h"
#include "sgx_trts.h"
#include <cstring>

// Change a buffer with a constant string if length allows it
void enclaveReply(char* buf, size_t len)
{
    const char* reply = "Hello App!";
    if (len > strlen(reply))
    {
        memcpy(buf, reply, strlen(reply) + 1);
    }
}


// EnclaveHello.edl

enclave {
    from "sgx_tstdc.edl" import *;

    trusted {
        /* define ECALLs here. */
        public void enclaveReply([out, size=len] char* buf, size_t len);
    };

    untrusted {
        /* define OCALLs here. */

    };
};