Fix base64 test.

* examples/base64.c (c_copy): Handle printable mode (-p).
(reset_line_length): New function.
(main): New option -lN sets the maximum length for output
lines to N (0 means unlimited).
* mailbox/testsuite/mailbox/base64.exp: Use -l0 in the
Decode test.

@@ -35,7 +35,28 @@ int printable = 0;
 static void
 c_copy (mu_stream_t out, mu_stream_t in)
 {
-  MU_ASSERT (mu_stream_copy (out, in, 0));
+  if (printable)
+    {
+      char c;
+      size_t size;
+      
+      while (mu_stream_read (in, &c, 1, &size) == 0 && size > 0)
+	{
+	  int rc;
+	  
+	  if (printable && !ISPRINT (c))
+	    {
+	      char outbuf[24];
+	      sprintf (outbuf, "\\%03o", (unsigned char) c);
+	      rc = mu_stream_write (out, outbuf, strlen (outbuf), NULL);
+	    }
+	  else
+	    rc = mu_stream_write (out, &c, 1, NULL);
+	}
+    }
+  else
+    MU_ASSERT (mu_stream_copy (out, in, 0));
+  mu_stream_write (out, "\n", 1, NULL);
   mu_stream_close (out);
   mu_stream_close (in);
   if (verbose)
@@ -44,6 +65,23 @@ c_copy (mu_stream_t out, mu_stream_t in)
 	     (unsigned long) mu_stream_bytes_out (out));
 }
 
+/* Set the maximum line length for the filter NAME to LENGTH.
+   FIXME: This is a kludge. Perhaps API should provide a function
+   for that. */
+static void
+reset_line_length (const char *name, size_t length)
+{
+  mu_list_t list;
+  int status;
+  mu_filter_record_t frec;
+  
+  mu_filter_get_list (&list);
+  status = mu_list_locate (list, (void*)name, (void**)&frec);
+  if (status == 0)
+    frec->max_line_length = length;
+  /* don't bail out, leave that to mu_filter_create */
+}
+
 int
 main (int argc, char * argv [])
 {
@@ -54,8 +92,10 @@ main (int argc, char * argv [])
   char *input = NULL, *output = NULL;
   char *encoding = "base64";
   mu_off_t shift = 0;
+  size_t line_length;
+  int line_length_option = 0;
   
-  while ((c = getopt (argc, argv, "deE:hi:o:ps:vw")) != EOF)
+  while ((c = getopt (argc, argv, "deE:hi:l:o:ps:vw")) != EOF)
     switch (c)
       {
       case 'i':
@@ -78,8 +118,13 @@ main (int argc, char * argv [])
 	mode = MU_FILTER_ENCODE;
 	break;
 
+      case 'l':
+	line_length = strtoul (optarg, NULL, 10);
+	line_length_option = 1;
+	break;
+	
       case 'p':
- 	printable = 1; /* FIXME: Not implemented */
+ 	printable = 1;
 	break;
 
       case 's':
@@ -115,6 +160,9 @@ main (int argc, char * argv [])
     MU_ASSERT (mu_stdio_stream_create (&out, MU_STDOUT_FD, 0));
   MU_ASSERT (mu_stream_open (out));
 
+  if (line_length_option)
+    reset_line_length (encoding, line_length);
+  
   if (flags == MU_STREAM_READ)
     {
       MU_ASSERT (mu_filter_create (&flt, in, encoding, mode,

@@ -29,7 +29,9 @@ mu_exec -message "encode" -arg -i${srcdir}/Encode \
 
 ## Expect chokes on binary data, so let's switch base64 to printable
 ## octal output.
-mu_exec -message "decode" -arg -i${srcdir}/Decode -arg -dp \
+## The -l0 option ensures that the output is not split by inserting
+## additional newlines.
+mu_exec -message "decode" -arg -i${srcdir}/Decode -arg -dpl0 \
 "\\000\\001\\002\\003\\004\\005\\006\\007\\010\\011\\012\\013\\014\\015\\016\\017\\020\\021\\022\\023\\024\\025\\026\\027\\030\\031\\032\\033\\034\\035\\036\\037 !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\[\\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\\177\\200\\201\\202\\203\\204\\205\\206\\207\\210\\211\\212\\213\\214\\215\\216\\217\\220\\221\\222\\223\\224\\225\\226\\227\\230\\231\\232\\233\\234\\235\\236\\237\\240\\241\\242\\243\\244\\245\\246\\247\\250\\251\\252\\253\\254\\255\\256\\257\\260\\261\\262\\263\\264\\265\\266\\267\\270\\271\\272\\273\\274\\275\\276\\277\\300\\301\\302\\303\\304\\305\\306\\307\\310\\311\\312\\313\\314\\315\\316\\317\\320\\321\\322\\323\\324\\325\\326\\327\\330\\331\\332\\333\\334\\335\\336\\337\\340\\341\\342\\343\\344\\345\\346\\347\\350\\351\\352\\353\\354\\355\\356\\357\\360\\361\\362\\363\\364\\365\\366\\367\\370\\371\\372\\373\\374\\375\\376\\377"
 
 # End of base64.exp