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Kernel: Make syscalls that take a buffer size use ssize_t instead of size_t.
Dealing with the unsigned overflow propagation here just seems unreasonably error prone. Let's limit ourselves to 2GB buffer sizes instead.
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40 changed files with 144 additions and 136 deletions
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@ -13,15 +13,15 @@ public:
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unsigned index() const { return m_index; }
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String pts_name() const;
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ssize_t on_slave_write(const byte*, size_t);
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ssize_t on_slave_write(const byte*, ssize_t);
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bool can_write_from_slave() const;
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void notify_slave_closed(Badge<SlavePTY>);
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bool is_closed() const { return m_closed; }
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private:
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// ^CharacterDevice
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virtual ssize_t read(Process&, byte*, size_t) override;
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virtual ssize_t write(Process&, const byte*, size_t) override;
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virtual ssize_t read(Process&, byte*, ssize_t) override;
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virtual ssize_t write(Process&, const byte*, ssize_t) override;
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virtual bool can_read(Process&) const override;
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virtual bool can_write(Process&) const override;
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virtual void close() override;
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