extern struct linkbuf *ihead; /* list of files with more than one link */
extern struct passwd *pw; /* pointer to static area used by getpwent */
extern struct group *gr; /* pointer to static area used by getgrent */
extern struct linkbuf *ihead; /* list of files with more than one link */
extern struct passwd *pw; /* pointer to static area used by getpwent */
extern struct group *gr; /* pointer to static area used by getgrent */