openpgp: Ensure entire header is read.

  - https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
  - Replace `read` with `read_exact`, so that an error is returned if
    the buffer cannot be filled.

1 files changed, 1 insertions, 1 deletions

diff --git a/openpgp/src/parse.rs b/openpgp/src/parse.rs
index b6963d2c..4e9aefb0 100644
--- a/openpgp/src/parse.rs
+++ b/openpgp/src/parse.rs
@@ -5138,7 +5138,7 @@ impl<'a> PacketParser<'a> {
                     let mut dec = Decryptor::new(
                         algo, key, &self.data_hard(bl + 2)?[..bl + 2])?;
                     let mut header = vec![ 0u8; bl + 2 ];
-                    dec.read(&mut header)?;
+                    dec.read_exact(&mut header)?;
 
                     if !(header[bl - 2] == header[bl]
                          && header[bl - 1] == header[bl + 1]) {