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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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6
Kernel/Console.cpp
View file

@ -28,20 +28,20 @@ bool Console::can_read(Process&) const
return false;
}
ssize_t Console::read(Process&, byte*, size_t)
ssize_t Console::read(Process&, byte*, ssize_t)
{
// FIXME: Implement reading from the console.
// Maybe we could use a ring buffer for this device?
return 0;
}
ssize_t Console::write(Process&, const byte* data, size_t size)
ssize_t Console::write(Process&, const byte* data, ssize_t size)
{
if (!size)
return 0;
if (!m_implementation)
return 0;
for (size_t i = 0; i < size; ++i)
for (ssize_t i = 0; i < size; ++i)
put_char(data[i]);
return size;
}