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These functions provide a variety of services for NIS+ applications.
nis_mkdir() is used to create the necessary databases to support NIS+ service for a directory, dirname, on a server, machine. If this operation is successful, it means that the directory object describing dirname has been updated to reflect that server machine is serving the named directory. For a description of the nis_server structure, refer to nis_objects(3NSL).
Per-server and per-directory access restrictions may apply to nis_mkdir(). See nisopaccess(1).
nis_rmdir() is used to delete the directory, dirname, from the specified server machine. The machine parameter cannot be NULL. Note that nis_rmdir() does not remove the directory dirname from the namespace or remove a server from the server list in the directory object. To remove a directory from the namespace you must call nis_remove() to remove the directory dirname from the namespace and call nis_rmdir()
for each server in the server list to remove the directory from the server. To remove a replica from the server list, you need to first call nis_modify() to remove the server from the directory object and then call nis_rmdir() to remove the replica.
Per-server and per-directory access restrictions may apply to nis_rmdir(). See nisopaccess(1).
For a description of the nis_server structure, refer to nis_objects(3NSL).
nis_servstate() is used to set and read the various state variables of the NIS+ servers. In particular the internal debugging state of the servers may be set and queried.
The nis_stats() function is used to retrieve statistics about how the server is operating. Tracking these statistics can help administrators determine when they need to add additional replicas or to break up a domain into two or more subdomains. For more information on reading
statistics, see nisstat(1M).
nis_servstate() and nis_stats() use the tag list. This tag list is a variable length array of nis_tag structures whose length is passed to the function in the numtags parameter. The set of legal tags
are defined in the file <rpcsvc/nis_tags.h> which is included in <rpcsvc/nis.h>. Because these tags can and do vary between implementations of the NIS+ service, it is best to consult this file for the supported list. Passing
unrecognized tags to a server will result in their tag_value member being set to the string ``unknown.'' Both of these functions return their results in malloced tag structure, *result. If there is an error, *result is
set to NULL. The tag_value pointers points to allocated string memory which contains the results. Use nis_freetags() to free the tag structure.
Per-server and per-directory access restrictions may apply to the NIS_SERVSTATE or NIS_STATUS (nis_stats()) operations and their sub-operations (tags). See nisopaccess(1).
nis_getservlist() returns a null terminated list of nis_server structures that represent the list of servers that serve the domain named dirname. Servers from this list can be used when calling functions that require the
name of a NIS+ server. For a description of the nis_server refer to nis_objects(3NSL). nis_freeservlist() frees the list of servers list of servers
returned by nis_getservlist(). Note that this is the only legal way to free that list.
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