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bugfix: fix overflow risk of strlen function

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Hong, Yang A 2022-04-28 10:11:32 +00:00
parent 1baf340d1c
commit 47bc68339f
1 changed files with 2 additions and 1 deletions
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3
src/compiler/compiler.cpp
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@ -323,7 +323,8 @@ void addExpression(NG &ng, unsigned index, const char *expression,
}
// Ensure that our pattern isn't too long (in characters).
if (strlen(expression) > cc.grey.limitPatternLength) {
size_t maxlen = cc.grey.limitPatternLength + 1;
if (strnlen(expression, maxlen) >= maxlen) {
throw CompileError("Pattern length exceeds limit.");
}