/* * tree navigation primitives (must obtain lock before using these) */ /* * sysctl_locate -- Finds the node matching the given mib under the * given tree (via rv). If no tree is given, we fall back to the * native tree. The current process (via l) is used for access * control on the tree (some nodes may be traversable only by root) and * on return, nip will show how many numbers in the mib were consumed. */