Fix Bug#17415.

* net/tramp-sh.el (tramp-uudecode): Replace the hard-coded temporary
file name by a format specifier.
(tramp-remote-coding-commands): Enhance docstring.
(tramp-find-inline-encoding): Replace "%t" by a temporary file name.

2 files changed, 32 insertions, 9 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 8a6b61b891b..f5766f03063 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -9,6 +9,12 @@
         (tramp-maybe-open-connection): Setenv HISTFILE to /dev/null.
         (Bug#17295)
 
+        (tramp-uudecode): Replace the hard-coded temporary file name by a
+        format specifier.
+        (tramp-remote-coding-commands): Enhance docstring.
+        (tramp-find-inline-encoding): Replace "%t" by a temporary file
+        name.  (Bug#17415)
+
 2014-05-06  Glenn Morris  <rgm@gnu.org>
 
         * emacs-lisp/find-gc.el (find-gc-source-directory): Give it a value.
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 431d6183d71..900e1c812ae 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -492,9 +492,9 @@ This list is used for copying/renaming with out-of-band methods.
 See `tramp-actions-before-shell' for more info.")
 
 (defconst tramp-uudecode
-  "(echo begin 600 /tmp/tramp.$$; tail +2) | uudecode
-cat /tmp/tramp.$$
-rm -f /tmp/tramp.$$"
+  "(echo begin 600 %t; tail -n +2) | uudecode
+cat %t
+rm -f %t"
   "Shell function to implement `uudecode' to standard output.
 Many systems support `uudecode -o /dev/stdout' or `uudecode -o -'
 for this or `uudecode -p', but some systems don't, and for them
@@ -4039,7 +4039,7 @@ Each item is a list that looks like this:
 
 \(FORMAT ENCODING DECODING [TEST]\)
 
-FORMAT is  symbol describing the encoding/decoding format.  It can be
+FORMAT is a symbol describing the encoding/decoding format.  It can be
 `b64' for base64 encoding, `uu' for uu encoding, or `pack' for simple packing.
 
 ENCODING and DECODING can be strings, giving commands, or symbols,
@@ -4049,9 +4049,11 @@ filename will be put into the command line at that spot.  If the
 specifier is not present, the input should be read from standard
 input.
 
-If they are variables, this variable is a string containing a Perl
-implementation for this functionality.  This Perl program will be transferred
-to the remote host, and it is available as shell function with the same name.
+If they are variables, this variable is a string containing a
+Perl or Shell implementation for this functionality.  This
+program will be transferred to the remote host, and it is
+available as shell function with the same name.  A \"%t\" format
+specifier in the variable value denotes a temporary file.
 
 The optional TEST command can be used for further tests, whether
 ENCODING and DECODING are applicable.")
@@ -4130,10 +4132,25 @@ Goes through the list `tramp-local-coding-commands' and
                     (throw 'wont-work-remote nil))
 
                   (when (not (stringp rem-dec))
-                    (let ((name (symbol-name rem-dec)))
+                    (let ((name (symbol-name rem-dec))
+                          (value (symbol-value rem-dec))
+                          tmpfile)
                       (while (string-match (regexp-quote "-") name)
                         (setq name (replace-match "_" nil t name)))
-                      (tramp-maybe-send-script vec (symbol-value rem-dec) name)
+                      (when (string-match "%t" value)
+                        (setq tmpfile
+                              (make-temp-name
+                               (expand-file-name
+                                tramp-temp-name-prefix
+                                (tramp-get-remote-tmpdir vec)))
+                              value
+                              (format-spec
+                               value
+                               (format-spec-make
+                                ?t
+                                (tramp-file-name-handler
+                                 'file-remote-p tmpfile 'localname)))))
+                      (tramp-maybe-send-script vec value name)
                       (setq rem-dec name)))
                   (tramp-message
                    vec 5