pad_root
appp = &(pad->pad_root);
appp = &(pad->pad_root);
pfxapp = pad->pad_root;
struct audit_path *pad_root; /* process root path */
#define pad_root pad_data.pad_root
pad0->pad_root = au_pathdup(&apempty, 1, 2);
bcopy("/", pad0->pad_root->audp_sect[0], 2);
au_pathhold(pad0->pad_root);
pad0->pad_cwd = pad0->pad_root;
au_pathhold(pad->pad_root);
au_pathrele(pad->pad_root);
app = pad->pad_root;