tramp (2.0.36); su and sudo hangs on FreeBSD when saving file

[Dryice Liu]

--bug report follows this line--

The FTP methord works great but su and sudo hangs. Here is what I did:

1. emacs -q
2. 

(load-library "tramp")
(setq tramp-debug-buffer t)

3. toggle-debug-on-error
4. toggle-debug-on-quit
5. C-x d /su:address@hidden:/etc
6. After typing the password, the /etc directory shows
7. Edit inetd.conf and save it
8. tramp hangs with
 "tramp: Waiting for remote host to process data..." 
in the mini buffer. I have to type C-g to get Emacs back

There's nothing in "*tramp/su localhost*" and "*tramp output*" buffer,
and there's no tramp debug buffer show up. I'm attaching the backtrace
and the "current state" from tramp-submit-bug output below. And here
is my environment:

FreeBSD 5.1
GNU Emacs 21.3.1 (i386--freebsd, X toolkit, Xaw3d scroll bars) of
          2003-04-19 (from FreeBSD port)
tramp 2.0.36 (from FreeBSD port)
Sudo version 1.6.7p5 (from FreeBSD port)

Any information is appreciated.

======================================================================
backtrace:

Debugger entered--Lisp error: (quit)
  accept-process-output(#<process *tramp/su localhost*> 1)
  tramp-wait-for-output()
  tramp-handle-write-region(1 5160 "/su:address@hidden:/etc/inetd.conf" nil t)
  apply(tramp-handle-write-region (1 5160 "/su:address@hidden:/etc/inetd.conf" 
nil t))
  tramp-sh-file-name-handler(write-region 1 5160 
"/su:address@hidden:/etc/inetd.conf" nil t)
  apply(tramp-sh-file-name-handler write-region (1 5160 
"/su:address@hidden:/etc/inetd.conf" nil t))
  tramp-file-name-handler(write-region 1 5160 
"/su:address@hidden:/etc/inetd.conf" nil t)
  write-region(1 5160 "/su:address@hidden:/etc/inetd.conf" nil t 
"/su:address@hidden:/etc/inetd.conf")
  basic-save-buffer-2()
  basic-save-buffer-1()
  basic-save-buffer()
  save-buffer(1)
  call-interactively(save-buffer)
======================================================================

current state:
==============
(setq
 tramp-ls-command nil
 tramp-test-groks-nt nil
 tramp-file-exists-command nil
 tramp-current-multi-method nil
 tramp-current-method nil
 tramp-current-user nil
 tramp-current-host nil
 tramp-auto-save-directory nil
 tramp-default-method "ssh"
 tramp-rsh-end-of-line "\n"
 tramp-default-password-end-of-line "\n"
 tramp-remote-path '("/bin" "/usr/bin" "/usr/sbin" "/usr/local/bin" 
"/usr/ccs/bin" "/local/bin" "/local/freeware/bin" "/local/gnu/bin"
                     "/usr/freeware/bin" "/usr/pkg/bin" "/usr/contrib/bin")
 tramp-login-prompt-regexp ".*ogin: *"
 tramp-password-prompt-regexp "^.*\\([pP]assword\\|passphrase.*\\):
 tramp-wrong-passwd-regexp "^.*\\(Connection 
\\(?:\\(?:clo\\|refu\\)sed\\)\\|Host key verification failed\\.\\|Login 
\\(?:[Ii]ncorrect\\)\\|Name or service not known\\|\\(?:Permission 
denied\\|Sorry, try again\\)\\.\\).*\\|^.*\\(Received signal [0-9]+\\).*"
 tramp-yesno-prompt-regexp "\\(Are you sure you want to continue connecting 
(yes/no)\\?\\)\\s-*"
 tramp-yn-prompt-regexp "\\(Store key in cache\\? (y/n)\\)\\s-*"
 tramp-temp-name-prefix "tramp."
 tramp-file-name-structure '("^/\\(\\([a-zA-Z_0-9-]+\\):\\)?\\(\\([^:@/         
]*\\)@\\)?\\([a-zA-Z0-9_.#-]*\\):\\(.*$\\)" 2 4 5 6)
 tramp-file-name-regexp "\\`/[^/:]+:"
 tramp-multi-file-name-structure 
'("^/\\(\\([a-zA-Z_0-9-]+\\)\\)?\\(\\(:%s\\)+\\)?:\\(.*$\\)" 2 3 -1)
 tramp-multi-file-name-hop-structure '("\\([a-zA-Z_0-9-]+\\):\\([^:@/   
]*\\)@\\([a-zA-Z0-9_.#-]*\\)" 1 2 3)
 tramp-multi-methods '("multi" "multiu")
 tramp-multi-connection-function-alist '(("telnet" tramp-multi-connect-telnet 
"telnet %h%n")
                                         ("rsh" tramp-multi-connect-rlogin "rsh 
%h -l %u%n")
                                         ("remsh" tramp-multi-connect-rlogin 
"remsh %h -l %u%n")
                                         ("ssh" tramp-multi-connect-rlogin "ssh 
%h -l %u%n") ("su" tramp-multi-connect-su "su - %u%n")
                                         ("sudo" tramp-multi-connect-su "sudo 
-u %u -s -p Password:%n"))
 tramp-methods '(("smb") ("ftp")
                 ("rcp" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "rsh") (tramp-copy-program "rcp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args nil) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg "-p")
                  (tramp-password-end-of-line nil))
                 ("scp" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program "scp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg "-p")
                  (tramp-password-end-of-line nil))
                 ("scp1" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program "scp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-1" "-e" 
"none")) (tramp-copy-args ("-1"))
                  (tramp-copy-keep-date-arg "-p") (tramp-password-end-of-line 
nil))
                 ("scp2" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program "scp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-2" "-e" 
"none")) (tramp-copy-args ("-2"))
                  (tramp-copy-keep-date-arg "-p") (tramp-password-end-of-line 
nil))
                 ("scp1_old" (tramp-connection-function 
tramp-open-connection-rsh) (tramp-login-program "ssh1")
                  (tramp-copy-program "scp1") (tramp-remote-sh "/bin/sh") 
(tramp-login-args ("-e" "none")) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg "-p") (tramp-password-end-of-line 
nil))
                 ("scp2_old" (tramp-connection-function 
tramp-open-connection-rsh) (tramp-login-program "ssh2")
                  (tramp-copy-program "scp2") (tramp-remote-sh "/bin/sh") 
(tramp-login-args ("-e" "none")) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg "-p") (tramp-password-end-of-line 
nil))
                 ("rsync" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program "rsync")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none")) 
(tramp-copy-args ("-e" "ssh"))
                  (tramp-copy-keep-date-arg "-t") (tramp-password-end-of-line 
nil))
                 ("remcp" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "remsh") (tramp-copy-program "rcp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args nil) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg "-p")
                  (tramp-password-end-of-line nil))
                 ("rsh" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "rsh") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args nil) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("ssh" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("ssh1" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-1" "-e" 
"none")) (tramp-copy-args ("-1"))
                  (tramp-copy-keep-date-arg nil) (tramp-password-end-of-line 
nil))
                 ("ssh2" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-2" "-e" 
"none")) (tramp-copy-args ("-2"))
                  (tramp-copy-keep-date-arg nil) (tramp-password-end-of-line 
nil))
                 ("ssh1_old" (tramp-connection-function 
tramp-open-connection-rsh) (tramp-login-program "ssh1") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("ssh2_old" (tramp-connection-function 
tramp-open-connection-rsh) (tramp-login-program "ssh2") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("remsh" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "remsh") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args nil) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("telnet" (tramp-connection-function 
tramp-open-connection-telnet) (tramp-login-program "telnet")
                  (tramp-copy-program nil) (tramp-remote-sh "/bin/sh") 
(tramp-login-args nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg nil) (tramp-password-end-of-line 
nil))
                 ("su" (tramp-connection-function tramp-open-connection-su) 
(tramp-login-program "su") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-" "%u")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("sudo" (tramp-connection-function tramp-open-connection-su) 
(tramp-login-program "sudo") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-u" "%u" "-s" 
"-p" "Password:")) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg nil) (tramp-password-end-of-line 
nil))
                 ("multi" (tramp-connection-function 
tramp-open-connection-multi) (tramp-login-program nil) (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args nil) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line nil))
                 ("scpx" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program "scp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none" 
"-t" "-t" "/bin/sh")) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg "-p") (tramp-password-end-of-line 
nil))
                 ("sshx" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "ssh") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-e" "none" 
"-t" "-t" "/bin/sh")) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg nil) (tramp-password-end-of-line 
nil))
                 ("krlogin" (tramp-connection-function 
tramp-open-connection-rsh) (tramp-login-program "krlogin")
                  (tramp-copy-program nil) (tramp-remote-sh "/bin/sh") 
(tramp-login-args ("-x")) (tramp-copy-args nil)
                  (tramp-copy-keep-date-arg nil) (tramp-password-end-of-line 
nil))
                 ("plink" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "plink") (tramp-copy-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-ssh")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line "xy"))
                 ("plink1" (tramp-connection-function 
tramp-open-connection-rsh) (tramp-login-program "plink") (tramp-copy-program 
nil)
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-1" "-ssh")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg nil)
                  (tramp-password-end-of-line "xy"))
                 ("pscp" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "plink") (tramp-copy-program "pscp")
                  (tramp-remote-sh "/bin/sh") (tramp-login-args ("-ssh")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg "-p")
                  (tramp-password-end-of-line "xy"))
                 ("fcp" (tramp-connection-function tramp-open-connection-rsh) 
(tramp-login-program "fsh") (tramp-copy-program "fcp")
                  (tramp-remote-sh "/bin/sh -i") (tramp-login-args ("sh" "-i")) 
(tramp-copy-args nil) (tramp-copy-keep-date-arg "-p")
                  (tramp-password-end-of-line nil))
                 )
 tramp-end-of-output "///836590cd43f1ba10d487b7389d089771"
 tramp-coding-commands '(("mimencode -b" "mimencode -u -b" base64-encode-region 
base64-decode-region)
                         ("mmencode -b" "mmencode -u -b" base64-encode-region 
base64-decode-region)
                         ("recode data..base64" "recode base64..data" 
base64-encode-region base64-decode-region)
                         ("uuencode xxx" "uudecode -o -" tramp-uuencode-region 
uudecode-decode-region)
                         ("uuencode xxx" "uudecode -p" tramp-uuencode-region 
uudecode-decode-region)
                         ("uuencode xxx" "tramp_uudecode" tramp-uuencode-region 
uudecode-decode-region)
                         ("tramp_encode_with_module" "tramp_decode_with_module" 
base64-encode-region base64-decode-region)
                         ("tramp_encode" "tramp_decode" base64-encode-region 
base64-decode-region))
 tramp-actions-before-shell '((tramp-password-prompt-regexp 
tramp-action-password) (tramp-login-prompt-regexp tramp-action-login)
                              (shell-prompt-pattern tramp-action-succeed) 
(tramp-shell-prompt-pattern tramp-action-succeed)
                              (tramp-wrong-passwd-regexp 
tramp-action-permission-denied) (tramp-yesno-prompt-regexp tramp-action-yesno)
                              (tramp-yn-prompt-regexp tramp-action-yn) 
(tramp-terminal-prompt-regexp tramp-action-terminal))
 tramp-multi-actions '((tramp-password-prompt-regexp 
tramp-multi-action-password) (tramp-login-prompt-regexp 
tramp-multi-action-login)
                       (shell-prompt-pattern tramp-multi-action-succeed) 
(tramp-shell-prompt-pattern tramp-multi-action-succeed)
                       (tramp-wrong-passwd-regexp 
tramp-multi-action-permission-denied))
 tramp-terminal-type "dumb"
 tramp-shell-prompt-pattern "^[^#$%>\n]*[#$%>] *\\(\\[[0-9;]*[a-zA-Z] *\\)*"
 tramp-chunksize nil
 shell-prompt-pattern "^[^#$%>\n]*[#$%>] *"
 backup-by-copying nil
 backup-by-copying-when-linked nil
 backup-by-copying-when-mismatch nil
 backup-by-copying-when-privileged-mismatch 200
 file-name-handler-alist '(("^/[^/]*$" . tramp-completion-file-name-handler) 
("\\`/[^/:]+:" . tramp-file-name-handler)
                           ("\\`/:" . file-name-non-special))
 )


Thanks,
-- 
Dryice Liu