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strat: minor result/overflow check fixes

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This commit is contained in:
Michael Scire
2022-03-13 03:30:17 -07:00
committed by SciresM
parent e13b81aa9e
commit 741efd04ec
3 changed files with 11 additions and 19 deletions
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20
libraries/libstratosphere/include/stratosphere/fs/fsa/fs_ifile.hpp
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@@ -36,12 +36,10 @@ namespace ams::fs::fsa {
}
/* Check that the read is valid. */
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
R_UNLESS(offset >= 0, fs::ResultOutOfRange());
R_UNLESS(util::IsIntValueRepresentable<s64>(size), fs::ResultOutOfRange());
const s64 signed_size = static_cast<s64>(size);
R_UNLESS((std::numeric_limits<s64>::max() - offset) >= signed_size, fs::ResultOutOfRange());
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
R_UNLESS(offset >= 0, fs::ResultOutOfRange());
R_UNLESS(util::IsIntValueRepresentable<s64>(size), fs::ResultOutOfRange());
R_UNLESS(util::CanAddWithoutOverflow<s64>(offset, size), fs::ResultOutOfRange());
/* Do the read. */
R_RETURN(this->DoRead(out, offset, buffer, size, option));
@@ -68,12 +66,10 @@ namespace ams::fs::fsa {
}
/* Check the write is valid. */
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
R_UNLESS(offset >= 0, fs::ResultOutOfRange());
R_UNLESS(util::IsIntValueRepresentable<s64>(size), fs::ResultOutOfRange());
const s64 signed_size = static_cast<s64>(size);
R_UNLESS((std::numeric_limits<s64>::max() - offset) >= signed_size, fs::ResultOutOfRange());
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
R_UNLESS(offset >= 0, fs::ResultOutOfRange());
R_UNLESS(util::IsIntValueRepresentable<s64>(size), fs::ResultOutOfRange());
R_UNLESS(util::CanAddWithoutOverflow<s64>(offset, size), fs::ResultOutOfRange());
R_RETURN(this->DoWrite(offset, buffer, size, option));
}