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limit stackDepth

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This commit is contained in:
Christopher Dunn 2015-02-11 09:44:02 -06:00
parent 249ad9f47f
commit 4dca80da49
1 changed files with 7 additions and 1 deletions
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8
src/lib_json/json_reader.cpp
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@ -1034,7 +1034,9 @@ private:
Location lastValueEnd_;
Value* lastValue_;
std::string commentsBefore_;
OurFeatures features_;
int stackDepth_;
OurFeatures const features_;
bool collectComments_;
}; // OurReader
@ -1065,6 +1067,7 @@ bool OurReader::parse(const char* beginDoc,
nodes_.pop();
nodes_.push(&root);
stackDepth_ = 0;
bool successful = readValue();
Token token;
skipCommentTokens(token);
@ -1087,6 +1090,8 @@ bool OurReader::parse(const char* beginDoc,
}
bool OurReader::readValue() {
if (stackDepth_ >= features_.stackLimit_) throw std::runtime_error("Exceeded stackLimit in readValue().");
++stackDepth_;
Token token;
skipCommentTokens(token);
bool successful = true;
@ -1158,6 +1163,7 @@ bool OurReader::readValue() {
lastValue_ = &currentValue();
}
--stackDepth_;
return successful;
}