linux: filesystem descriptor API bindings missing
Linux specific, but also found on other systems (but not POSIX):
FILE *setmntent(const char *filename, const char *type);
struct mntent *getmntent(FILE *stream);
int addmntent(FILE *stream, const struct mntent *mnt);
int endmntent(FILE *streamp);
char *hasmntopt(const struct mntent *mnt, const char *opt);
GNU extension:
struct mntent *getmntent_r(FILE *streamp, struct mntent *mntbuf, char *buf, int buflen);