silc_strncat(tmp, sizeof(tmp), "SMS ", strlen(" SMS"));
if (mask & SILC_ATTRIBUTE_CONTACT_MMS)
silc_strncat(tmp, sizeof(tmp), "MMS ", strlen(" MMS"));
silc_strncat(tmp, sizeof(tmp), "SMS ", strlen(" SMS"));
if (mask & SILC_ATTRIBUTE_CONTACT_MMS)
silc_strncat(tmp, sizeof(tmp), "MMS ", strlen(" MMS"));