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use fortanix_sgx_abi::{Error, RESULT_SUCCESS};
use crate::ffi::{OsStr, OsString};
use crate::marker::PhantomData;
use crate::path::{self, PathBuf};
use crate::sys::{decode_error_kind, sgx_ineffective, unsupported};
use crate::{fmt, io};
pub fn errno() -> i32 {
RESULT_SUCCESS
}
pub fn error_string(errno: i32) -> String {
if errno == RESULT_SUCCESS {
"operation successful".into()
} else if ((Error::UserRangeStart as _)..=(Error::UserRangeEnd as _)).contains(&errno) {
format!("user-specified error {errno:08x}")
} else {
decode_error_kind(errno).as_str().into()
}
}
pub fn getcwd() -> io::Result<PathBuf> {
unsupported()
}
pub fn chdir(_: &path::Path) -> io::Result<()> {
sgx_ineffective(())
}
pub struct SplitPaths<'a>(!, PhantomData<&'a ()>);
pub fn split_paths(_unparsed: &OsStr) -> SplitPaths<'_> {
panic!("unsupported")
}
impl<'a> Iterator for SplitPaths<'a> {
type Item = PathBuf;
fn next(&mut self) -> Option<PathBuf> {
self.0
}
}
#[derive(Debug)]
pub struct JoinPathsError;
pub fn join_paths<I, T>(_paths: I) -> Result<OsString, JoinPathsError>
where
I: Iterator<Item = T>,
T: AsRef<OsStr>,
{
Err(JoinPathsError)
}
impl fmt::Display for JoinPathsError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
"not supported in SGX yet".fmt(f)
}
}
impl crate::error::Error for JoinPathsError {}
pub fn current_exe() -> io::Result<PathBuf> {
unsupported()
}
pub fn temp_dir() -> PathBuf {
panic!("no filesystem in SGX")
}
pub fn home_dir() -> Option<PathBuf> {
None
}
pub fn exit(code: i32) -> ! {
super::abi::exit_with_code(code as _)
}
pub fn getpid() -> u32 {
panic!("no pids in SGX")
}
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