jailparam_export
value = jailparam_export(jp + i);
extern char *jailparam_export(struct jailparam *jp);
value = jailparam_export(jp);
value = jailparam_export(¶ms[i]);
value = jailparam_export(jp + i);
param_values[i] = jailparam_export(params + i);