Add unfinished gpgtar.

Collected changes and ports of bug fixes from stable.

g10/ChangeLog

@@ -1,3 +1,10 @@
+2010-05-12  Werner Koch  <wk@g10code.com>
+
+	* armor.c (radix64_read): Extended 2006-04-28 fix to fix bug#1179.
+
+	* plaintext.c (handle_plaintext): Check return code of fflush.
+	Fixes bug#1207.
+
 2010-05-07  Werner Koch  <wk@g10code.com>
 
 	* import.c (fix_bad_direct_key_sigs): New.

g10/armor.c

@@ -798,8 +798,9 @@ radix64_read( armor_filter_context_t *afx, IOBUF a, size_t *retn,
 		    goto again;
 		}
 	    }
-	    else if(n==0)
-	      onlypad=1;
+
+	    if (!n)
+	      onlypad = 1;
 
 	    if( idx == 1 )
 		buf[n++] = val;

g10/card-util.c

@@ -1360,6 +1360,8 @@ generate_card_keys (void)
     {
       char *answer;
 
+      /* FIXME: Should be something like cpr_get_bool so that a status
+         GET_BOOL will be emitted.  */
       answer = cpr_get ("cardedit.genkeys.backup_enc",
                         _("Make off-card backup of encryption key? (Y/n) "));
 

g10/plaintext.c

@@ -448,7 +448,15 @@ handle_plaintext (PKT_plaintext * pt, md_filter_context_t * mfx,
   /* Make sure that stdout gets flushed after the plaintext has been
      handled.  This is for extra security as we do a flush anyway
      before checking the signature.  */
-  fflush (stdout);
+  if (fflush (stdout))
+    {
+      /* We need to check the return code to detect errors like disk
+         full for short plaintexts.  See bug#1207.  Checking return
+         values is a good idea in any case.  */
+      if (!rc)
+        rc = gpg_error_from_syserror ();
+      log_error ("error flushing `%s': %s\n", "[stdout]", strerror (errno));
+    }
 
   if (fp && fp != stdout && fp != opt.outfp)
     fclose (fp);