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(svn r17273) -Fix [Squirrel]: calling a function that has default parameters with not enough parameters can cause a crash

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This commit is contained in:
yexo 2009-08-23 19:25:52 +00:00
parent b841250913
commit f9c18ccc48
1 changed files with 4 additions and 0 deletions
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4
src/3rdparty/squirrel/squirrel/sqvm.cpp vendored
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@ -336,6 +336,10 @@ bool SQVM::StartCall(SQClosure *closure,SQInteger target,SQInteger args,SQIntege
SQInteger ndef = func->_ndefaultparams; SQInteger ndef = func->_ndefaultparams;
if(ndef && nargs < paramssize) { if(ndef && nargs < paramssize) {
SQInteger diff = paramssize - nargs; SQInteger diff = paramssize - nargs;
if (diff > ndef) {
Raise_Error(_SC("wrong number of parameters"));
return false;
}
for(SQInteger n = ndef - diff; n < ndef; n++) { for(SQInteger n = ndef - diff; n < ndef; n++) {
_stack._vals[stackbase + (nargs++)] = closure->_defaultparams[n]; _stack._vals[stackbase + (nargs++)] = closure->_defaultparams[n];
} }