uint alarm(uint);
char* basename(char*);
wint_t btowc(int);
int chown(char*, uid_t, gid_t);
int chroot(char*);
size_t confstr(int, char*, size_t);
int creat(char*, mode_t);
char* ctermid(char*);
int dirfd(DIR*);
char* dirname(char*);
char** environ;
int fattach(int, char*);
int fchmod(int, mode_t);
int fdatasync(int);
int ffs(int);
int fmtmsg(int, char*, int, char*, char*, char*);
int fpathconf(int, int);
int fseeko(FILE*, off_t, int);
off_t ftello(FILE*);