FILE *setmntent(const char *, const char *);
int endmntent(FILE *);
struct mntent *getmntent(FILE *);
+struct mntent *getmntent_r(FILE *, struct mntent *, char *, int);
int addmntent(FILE *, const struct mntent *);
char *hasmntopt(const struct mntent *, const char *);