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Added integer overflow checks to toSvgString() in Java, C++, Rust code; added checks to toImage() in Java code.

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Project Nayuki
2018-02-26 20:29:25 +00:00
parent 6a71979c2a
commit 9728f19f59
3 changed files with 11 additions and 2 deletions
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cpp/QrCode.cpp
+3
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@@ -157,6 +157,9 @@ bool QrCode::getModule(int x, int y) const {
std::string QrCode::toSvgString(int border) const {
if (border < 0)
throw "Border must be non-negative";
if (border > INT_MAX / 2 || border * 2 > INT_MAX - size)
throw "Border too large";
std::ostringstream sb;
sb << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
sb << "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n";