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Modify the userspace read/write usage location

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This commit is contained in:
Chen Chengjun
2024-06-28 09:36:43 +08:00
committed by Tate, Hongliang Tian
parent af908c29cf
commit cd2b305fa8
14 changed files with 25 additions and 19 deletions
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2
kernel/aster-nix/src/syscall/getcwd.rs
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@ -8,6 +8,6 @@ pub fn sys_getcwd(buf: Vaddr, len: usize) -> Result<SyscallReturn> {
let fake_cwd = CString::new("/")?;
let bytes = fake_cwd.as_bytes_with_nul();
let write_len = len.min(bytes.len());
write_bytes_to_user(buf, &bytes[..write_len])?;
write_bytes_to_user(buf, &mut VmReader::from(&bytes[..write_len]))?;
Ok(SyscallReturn::Return(write_len as _))
}