diff options
Diffstat (limited to 'generic/tclStringObj.c')
| -rw-r--r-- | generic/tclStringObj.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c index 8d5bb6f..32197a7 100644 --- a/generic/tclStringObj.c +++ b/generic/tclStringObj.c @@ -33,7 +33,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclStringObj.c,v 1.32.2.6 2009/02/05 14:10:58 dgp Exp $ */ + * RCS: @(#) $Id: tclStringObj.c,v 1.32.2.7 2009/03/21 02:53:18 dgp Exp $ */ #include "tclInt.h" @@ -1473,6 +1473,13 @@ Tcl_AppendStringsToObjVA (objPtr, argList) SetStringFromAny(NULL, objPtr); /* + * Force the existence of a string rep. so we avoid crashes operating + * on a pure unicode value. [Bug 2597185] + */ + + (void) Tcl_GetStringFromObj(objPtr, &oldLength); + + /* * Figure out how much space is needed for all the strings, and * expand the string representation if it isn't big enough. If no * bytes would be appended, just return. Note that on some platforms @@ -1481,7 +1488,6 @@ Tcl_AppendStringsToObjVA (objPtr, argList) nargs = 0; newLength = 0; - oldLength = objPtr->length; while (1) { string = va_arg(argList, char *); if (string == NULL) { |