void exit(status) int status ; int gtty(fildes,argp) int fildes; struct sgttyb *argp ; int pkon(fd,size) int fd, size ; int pkoff(fd) int fd ; char *sbrk(incr) p_int incr ; void (*signal(sig,func))() int sig ; void (*func)(); int stty(fildes,argp) int fildes; struct sgttyb *argp ; long tell(fildes) int fildes ; time_t time(ptr) time_t *ptr ; void cleanup() ; int access(name,mode) char *name ; int mode ; int acct(file) char *file ; unsigned alarm(seconds) unsigned seconds ; int brk(addr) char *addr ; int chdir(dir) char *dir ; int chmod(name,mode) char *name ; int mode ; int chown(name,owner,group) char *name ; int owner, group ; int chroot(dir) char *dir ; int close(fildes) int fildes ; int creat(name) char *name ; int dup(fildes) int fildes ; int dup2(fildes,fildes2) int fildes, fildes2 ; int execl(name,arg0,...,argn,(char*)0) char *name,*arg0,...,*argn ; int execl(name,arg0,...,argn,(char*)0,envp) char*name,*arg0,...,*argn,*envp[]; int execv(name,argv) char *name,*argv[] ; int execve(name,argv,envp) char *name,*argv[],*envp[] ; void _exit(status) int status ; int fork() ; int fstat(fildes,buf) int fildes ; struct stat *buf ; void ftime(tp) struct timeb *tp ; int getegid() ; int geteuid() ; int getgid() ; int getpid() ; int getuid() ; int ioctl(fildes,request,argp) int fildes, request ; struct sgttyb *buf ; int kill(pid,sig) int pid, sig ; int link(name1,name2) char *name1, *name2 ; int lock(flag) int flag ; long lseek(fildes,offset,whence) int fildes, whence ; long offset ; int mknod(name,mode,addr) char *name ; int mode, addr ; int mount(special,name,rwflag) char *special, *name ; int rwflag ; int mpxcall(cmd,vec) int cmd, *vec ; void nice(incr) int incr ; int open(name,mode) char *name ; int mode ; void pause() ; int pipe(files) int files[2] ; void profil(buff,bufsiz,offset,scale) char *buf; p_int bufsiz,offset,scale; int ptrace(request,pid,addr,data) int request, pid, *addr, data ; unsigned read(fildes,buff,nbytes) int fildes ; char *buff ; unsigned nbytes ; int setgid(gid) int gid ; int setuid(uid) int uid ; void _setsig(functionid) char *functionid ; int sigtrp(trapno,signo) int trapno,signo ; int stat(name,buf) char *name ; struct stat *buf ; int stime(tp) long *tp ; void sync() ; void times(buffer) struct tbuffer *buffer ; int umask(complmode) int complmode ; int umount(special) char *special ; int unlink(name) char *name ; int utime(file,timep) char *file ; time_t *timep ; int wait(status) char status[2] ; unsigned write(fildes,buff,nbytes) int fildes ; char *buff ; unsigned nbytes ; int errno ;