fd0               427 sysfile.c        int fd0, fd1;
fd0               433 sysfile.c        fd0 = -1;
fd0               434 sysfile.c        if((fd0 = fdalloc(rf)) < 0 || (fd1 = fdalloc(wf)) < 0){
fd0               435 sysfile.c          if(fd0 >= 0)
fd0               436 sysfile.c            myproc()->ofile[fd0] = 0;
fd0               441 sysfile.c        fd[0] = fd0;