[Bug 2923613]: Make the safer [source] handle a [return] at the end of the file

correctly.

1 files changed, 8 insertions, 6 deletions

diff --git a/library/safe.tcl b/library/safe.tcl
index 4bee33b..e89ca29 100644
--- a/library/safe.tcl
+++ b/library/safe.tcl
@@ -12,7 +12,7 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: safe.tcl,v 1.16.4.5 2009/12/23 11:13:46 dkf Exp $
+# RCS: @(#) $Id: safe.tcl,v 1.16.4.6 2009/12/30 22:20:57 dkf Exp $
 
 #
 # The implementation is based on namespaces. These naming conventions are
@@ -841,7 +841,7 @@ proc ::safe::AliasSource {slave args} {
     # because we want to control [info script] in the slave so information
     # doesn't leak so much. [Bug 2913625]
     set old [::interp eval $slave {info script}]
-    if {[catch {
+    set code [catch {
 	set f [open $realfile]
 	fconfigure $f -eofchar \032
 	if {$encoding ne ""} {
@@ -851,13 +851,15 @@ proc ::safe::AliasSource {slave args} {
 	close $f
 	::interp eval $slave [list info script $file]
 	::interp eval $slave $contents
-    } msg]} {
-	catch {interp eval $slave [list info script $old]}
+    } msg opt]
+    catch {interp eval $slave [list info script $old]}
+    # Note that all non-errors are fine result codes from [source], so we must
+    # take a little care to do it properly. [Bug 2923613]
+    if {$code == 1} {
 	Log $slave $msg
 	return -code error "script error"
     }
-    catch {interp eval $slave [list info script $old]}
-    return $msg
+    return -code $code -options $opt $msg
 }
 
 # AliasLoad is the target of the "load" alias in safe interpreters.