diff options
Diffstat (limited to 'generic/tclDictObj.c')
| -rw-r--r-- | generic/tclDictObj.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/generic/tclDictObj.c b/generic/tclDictObj.c index 3fa5b65..d8e4165 100644 --- a/generic/tclDictObj.c +++ b/generic/tclDictObj.c @@ -9,7 +9,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclDictObj.c,v 1.49 2007/04/24 20:46:09 dkf Exp $ + * RCS: @(#) $Id: tclDictObj.c,v 1.50 2007/09/08 22:36:58 dkf Exp $ */ #include "tclInt.h" @@ -2744,6 +2744,14 @@ DictUpdateCmd( objPtr = Tcl_ObjGetVar2(interp, objv[i+1], NULL, 0); if (objPtr == NULL) { Tcl_DictObjRemove(interp, dictPtr, objv[i]); + } else if (objPtr == dictPtr) { + /* + * Someone is messing us around, trying to build a recursive + * structure. [Bug 1786481] + */ + + Tcl_DictObjPut(interp, dictPtr, objv[i], + Tcl_DuplicateObj(objPtr)); } else { /* Shouldn't fail */ Tcl_DictObjPut(interp, dictPtr, objv[i], objPtr); @@ -2915,6 +2923,13 @@ DictWithCmd( valPtr = Tcl_ObjGetVar2(interp, keyv[i], NULL, 0); if (valPtr == NULL) { Tcl_DictObjRemove(NULL, leafPtr, keyv[i]); + } else if (leafPtr == valPtr) { + /* + * Someone is messing us around, trying to build a recursive + * structure. [Bug 1786481] + */ + + Tcl_DictObjPut(NULL, leafPtr, keyv[i], Tcl_DuplicateObj(valPtr)); } else { Tcl_DictObjPut(NULL, leafPtr, keyv[i], valPtr); } |