Add comments to host env import code

Signed-off-by: Christoph M. Wintersteiger <[email protected]>

src/enclave/enclave_oe.c

@@ -411,6 +411,8 @@ static void _copy_shared_memory(const sgxlkl_shared_memory_t* host)
  "Could not allocate memory for host-imported environment "
  "variables\n");
 
+ /* Import only those variable settings that are specified to be imported
+ * in cfg->host_import_env and ignore the others. */
  size_t begin = 0;
  sgxlkl_enclave_state.num_env_imported = 0;
  for (size_t i = 0; i < henv_len; i++)
@@ -420,6 +422,7 @@ static void _copy_shared_memory(const sgxlkl_shared_memory_t* host)
  const char* henv_i = henv + begin;
  size_t henv_i_len = i - begin;
 
+ /* Find setting in cfg->host_import_env */
  for (size_t j = 0; j < cfg->num_host_import_env; j++)
  {
  const char* name = cfg->host_import_env[j];