fsfd               29 mkfs/mkfs.c    int fsfd;
fsfd               88 mkfs/mkfs.c      fsfd = open(argv[1], O_RDWR|O_CREAT|O_TRUNC, 0666);
fsfd               89 mkfs/mkfs.c      if(fsfd < 0)
fsfd              178 mkfs/mkfs.c      if(lseek(fsfd, sec * BSIZE, 0) != sec * BSIZE)
fsfd              180 mkfs/mkfs.c      if(write(fsfd, buf, BSIZE) != BSIZE)
fsfd              214 mkfs/mkfs.c      if(lseek(fsfd, sec * BSIZE, 0) != sec * BSIZE)
fsfd              216 mkfs/mkfs.c      if(read(fsfd, buf, BSIZE) != BSIZE)