Slapi_PluginDesc represents information about a server plug-in. In your initialization function, you specify information about your plug-in in this structure and call slapi_pblock_set() to put the structure in the SLAPI_PLUGIN_DESCRIPTION parameter. 
Slapi_PluginDesc is defined as follows: 
typedef struct slapi_plugindesc {
	char *spd_id;
	char *spd_vendor;
	char *spd_version;
	char *spd_description;
} Slapi_PluginDesc;
The fields in this structure are described below: 
For more information on using Slapi_PluginDesc to specify plug-in information, see "Specifying Information about the Plug-In" on page  35.