X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Futil%2Flogger.rs;h=2717effb209d94750b1965a28c64a856647f3d80;hb=4bb81ff5942749077613827d6807b64230ecbcd5;hp=b34d1f0b782d8618756edc28e3d4a4791be0779f;hpb=41d8d4d6b277b7919ea847ffcfcaea59471ba4ff;p=rust-lightning

diff --git a/lightning/src/util/logger.rs b/lightning/src/util/logger.rs
index b34d1f0b..2717effb 100644
--- a/lightning/src/util/logger.rs
+++ b/lightning/src/util/logger.rs
@@ -120,6 +120,19 @@ pub trait Logger {
 	fn log(&self, record: &Record);
 }
 
+/// Wrapper for logging byte slices in hex format.
+/// (C-not exported) as fmt can't be used in C
+#[doc(hidden)]
+pub struct DebugBytes<'a>(pub &'a [u8]);
+impl<'a> core::fmt::Display for DebugBytes<'a> {
+	fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
+		for i in self.0 {
+			write!(f, "{:02x}", i)?;
+		}
+		Ok(())
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	use util::logger::{Logger, Level};