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Kernel: Make syscalls that take a buffer size use ssize_t instead of size_t.

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Dealing with the unsigned overflow propagation here just seems unreasonably
error prone. Let's limit ourselves to 2GB buffer sizes instead.
This commit is contained in:
Andreas Kling 2019-02-25 21:19:57 +01:00
parent 5af4e622b9
commit beda478821
40 changed files with 144 additions and 136 deletions
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4
Kernel/Device.h
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@ -19,8 +19,8 @@ public:
virtual bool can_read(Process&) const = 0;
virtual bool can_write(Process&) const = 0;
virtual ssize_t read(Process&, byte* buffer, size_t bufferSize) = 0;
virtual ssize_t write(Process&, const byte* buffer, size_t bufferSize) = 0;
virtual ssize_t read(Process&, byte*, ssize_t) = 0;
virtual ssize_t write(Process&, const byte*, ssize_t) = 0;
unsigned major() const { return m_major; }
unsigned minor() const { return m_minor; }