func main() { var n, m int var user ninep.User var err error var c *clnt.Clnt var file *clnt.File var buf []byte flag.Parse() user = ninep.OsUsers.Uid2User(os.Geteuid()) clnt.DefaultDebuglevel = *debuglevel c, err = clnt.Mount("tcp", *addr, "", uint32(*msize), user) if err != nil { goto error } if flag.NArg() != 1 { log.Println("invalid arguments") return } file, err = c.FOpen(flag.Arg(0), ninep.OWRITE|ninep.OTRUNC) if err != nil { file, err = c.FCreate(flag.Arg(0), 0666, ninep.OWRITE) if err != nil { goto error } } buf = make([]byte, 8192) for { n, err = os.Stdin.Read(buf) if err != nil && err != io.EOF { goto error } if n == 0 { break } m, err = file.Write(buf[0:n]) if err != nil { goto error } if m != n { err = &ninep.Error{"short write", 0} goto error } } file.Close() return error: log.Println("Error", err) }
// Create a single directory on remote server func mkone(c *clnt.Clnt, s string) { fname := normpath(s) file, oserr := c.FCreate(fname, 0777|ninep.DMDIR, ninep.OWRITE) if oserr != nil { fmt.Fprintf(os.Stderr, "error creating directory %s: %v\n", fname, oserr) return } file.Close() }
// Copy a local file to remote server func cmdput(c *clnt.Clnt, s []string) { var from, to string switch len(s) { case 1: _, to = path.Split(s[0]) to = normpath(to) from = s[0] case 2: from, to = s[0], normpath(s[1]) default: fmt.Fprintf(os.Stderr, "incorrect arguments; usage: put local [remote]\n") } fromfile, err := os.Open(from) if err != nil { fmt.Fprintf(os.Stderr, "error opening %s for reading: %s\n", from, err) return } defer fromfile.Close() file, ferr := c.FOpen(to, ninep.OWRITE|ninep.OTRUNC) if ferr != nil { file, ferr = c.FCreate(to, 0666, ninep.OWRITE) if ferr != nil { fmt.Fprintf(os.Stderr, "error opening %s for writing: %s\n", to, err) return } } defer file.Close() buf := make([]byte, 8192) for { n, oserr := fromfile.Read(buf) if oserr != nil && oserr != io.EOF { fmt.Fprintf(os.Stderr, "error reading %s: %s\n", from, oserr) return } if n == 0 { break } m, oserr := file.Write(buf[0:n]) if oserr != nil { fmt.Fprintf(os.Stderr, "error writing %s: %v\n", to, oserr) return } if m != n { fmt.Fprintf(os.Stderr, "short write %s\n", to) return } } }
// Write the string s to remote file f. Create f if it doesn't exist func writeone(c *clnt.Clnt, f, s string) { fname := normpath(f) file, oserr := c.FCreate(fname, 0666, ninep.OWRITE) if oserr != nil { file, oserr = c.FOpen(fname, ninep.OWRITE|ninep.OTRUNC) if oserr != nil { fmt.Fprintf(os.Stderr, "error opening %s: %v\n", fname, oserr) return } } defer file.Close() m, oserr := file.Write([]byte(s)) if oserr != nil { fmt.Fprintf(os.Stderr, "error writing to %s: %v\n", fname, oserr) return } if m != len(s) { fmt.Fprintf(os.Stderr, "short write %s\n", fname) return } }