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treewide: going no_std

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Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ia1c001eb099ea8cae9bdf76642b873376a6a6964
This commit is contained in:
raf 2026-03-27 17:29:49 +03:00
commit 472dbfc7e7
Signed by: NotAShelf
GPG key ID: 29D95B64378DB4BF
14 changed files with 856 additions and 143 deletions
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19
crates/lib/src/release.rs
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@ -1,6 +1,6 @@
use std::{fmt::Write as _, io};
use alloc::string::String;
use crate::{UtsName, syscall::read_file_fast};
use crate::{Error, UtsName, syscall::read_file_fast};
#[must_use]
#[cfg_attr(feature = "hotpath", hotpath::measure)]
@ -13,7 +13,14 @@ pub fn get_system_info(utsname: &UtsName) -> String {
let capacity = sysname.len() + 1 + release.len() + 2 + machine.len() + 1;
let mut result = String::with_capacity(capacity);
write!(result, "{sysname} {release} ({machine})").unwrap();
// Manual string construction instead of write! macro
result.push_str(sysname);
result.push(' ');
result.push_str(release);
result.push_str(" (");
result.push_str(machine);
result.push(')');
result
}
@ -23,7 +30,7 @@ pub fn get_system_info(utsname: &UtsName) -> String {
///
/// Returns an error if `/etc/os-release` cannot be read.
#[cfg_attr(feature = "hotpath", hotpath::measure)]
pub fn get_os_pretty_name() -> Result<String, io::Error> {
pub fn get_os_pretty_name() -> Result<String, Error> {
// Fast byte-level scanning for PRETTY_NAME=
const PREFIX: &[u8] = b"PRETTY_NAME=";
@ -31,7 +38,7 @@ pub fn get_os_pretty_name() -> Result<String, io::Error> {
// Use fast syscall-based file reading
let bytes_read = read_file_fast("/etc/os-release", &mut buffer)
.map_err(|e| io::Error::from_raw_os_error(-e))?;
.map_err(Error::from_raw_os_error)?;
let content = &buffer[..bytes_read];
let mut offset = 0;
@ -66,5 +73,5 @@ pub fn get_os_pretty_name() -> Result<String, io::Error> {
offset += line_end + 1;
}
Ok("Unknown".to_owned())
Ok(String::from("Unknown"))
}