inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);
inputdev = search_device(DEV_FLAGS_INPUT, stdinname);
outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);