set_trace_data
set_trace_data(category, 0, &channel, &prefix, &suffix,
set_trace_data(OSSL_TRACE_CATEGORY_TRACE, 0, &channel,
return set_trace_data(category, SIMPLE_CHANNEL, &channel, NULL, NULL,
if (!set_trace_data(category, CALLBACK_CHANNEL, &channel, NULL, NULL,
return set_trace_data(category, 0, NULL, &prefix, NULL,
return set_trace_data(category, 0, NULL, NULL, &suffix,