[dm][refactoring] Use hex crate to encode/decode hex string
Bug: 239413416
Test: atest MicrodroidTests
Change-Id: I259cc08fc264b41df3228d01f7b89ad55c530259
diff --git a/libs/devicemapper/src/util.rs b/libs/devicemapper/src/util.rs
index e8df424..cc071e4 100644
--- a/libs/devicemapper/src/util.rs
+++ b/libs/devicemapper/src/util.rs
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-use anyhow::{anyhow, bail, Result};
+use anyhow::{bail, Result};
use nix::sys::stat::FileStat;
use std::fs::File;
use std::os::unix::fs::FileTypeExt;
@@ -52,24 +52,6 @@
Ok(())
}
-/// Returns hexadecimal reprentation of a given byte array.
-pub fn hexstring_from(s: &[u8]) -> String {
- s.iter().map(|byte| format!("{:02x}", byte)).reduce(|i, j| i + &j).unwrap_or_default()
-}
-
-/// Parses a hexadecimal string into a byte array
-pub fn parse_hexstring(s: &str) -> Result<Vec<u8>> {
- let len = s.len();
- if len % 2 != 0 {
- bail!("length {} is not even", len)
- } else {
- (0..len)
- .step_by(2)
- .map(|i| u8::from_str_radix(&s[i..i + 2], 16).map_err(|e| anyhow!(e)))
- .collect()
- }
-}
-
/// fstat that accepts a path rather than FD
pub fn fstat(p: &Path) -> Result<FileStat> {
let f = File::open(p)?;