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AK: Add input bounds checking to String::substring()

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This checks for overflow in String::substring(). It also rearranges some
declarations in the header.
This commit is contained in:
Max Wipfli 2021-07-01 17:52:20 +02:00 • committed by Andreas Kling
parent 268d81a56c
commit 17eddf3ac4
2 changed files with 13 additions and 14 deletions
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5
AK/String.h
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@ -140,6 +140,7 @@ public:
[[nodiscard]] Vector<String> split_limit(char separator, size_t limit, bool keep_empty = false) const;
[[nodiscard]] Vector<String> split(char separator, bool keep_empty = false) const;
[[nodiscard]] Vector<StringView> split_view(char separator, bool keep_empty = false) const;
[[nodiscard]] Optional<size_t> find(char needle, size_t start = 0) const { return StringUtils::find(*this, needle, start); }
[[nodiscard]] Optional<size_t> find(StringView const& needle, size_t start = 0) const { return StringUtils::find(*this, needle, start); }
@ -147,10 +148,8 @@ public:
// FIXME: Implement find_last(StringView const&) for API symmetry.
[[nodiscard]] Vector<size_t> find_all(StringView const& needle) const { return StringUtils::find_all(*this, needle); }
[[nodiscard]] String substring(size_t start) const;
[[nodiscard]] String substring(size_t start, size_t length) const;
[[nodiscard]] Vector<StringView> split_view(char separator, bool keep_empty = false) const;
[[nodiscard]] String substring(size_t start) const;
[[nodiscard]] StringView substring_view(size_t start, size_t length) const;
[[nodiscard]] StringView substring_view(size_t start) const;