Unify zip errors

2 files changed, 10 insertions, 8 deletions

diff --git a/src/zip/file/info.rs b/src/zip/file/info.rs
index 38ea984..93b9f43 100644
--- a/src/zip/file/info.rs
+++ b/src/zip/file/info.rs
@@ -10,7 +10,7 @@ pub enum CompressionMethod {
     Lzma,
     Zstd,
     Xz,
-    Unsupported(u16),
+    Unsupported,
 }
 
 impl CompressionMethod {
@@ -23,7 +23,7 @@ impl CompressionMethod {
             14 => Self::Lzma,
             93 => Self::Zstd,
             95 => Self::Xz,
-            _ => Self::Unsupported(id),
+            _ => Self::Unsupported,
         }
     }
 }
diff --git a/src/zip/file/read.rs b/src/zip/file/read.rs
index d25655e..567fb75 100644
--- a/src/zip/file/read.rs
+++ b/src/zip/file/read.rs
@@ -116,7 +116,9 @@ impl<Io: Read + Seek> Encryption<IoCursor<Io>> {
                     Aes256::new(key.into()),
                 )?)
             }
-            EncryptionMethod::Unsupported => return Err(ZipError::UnsupportedEncryptionMethod),
+            EncryptionMethod::Unsupported => {
+                return Err(ZipError::Unsupported("encryption method"))
+            }
         })
     }
 }
@@ -141,7 +143,7 @@ impl<Io: Read + Seek> Seek for Encryption<Io> {
             Self::None(io) => io.seek(pos),
             _ => Err(IoError::new(
                 IoErrorKind::Unsupported,
-                ZipError::EncryptedDataIsUnseekable,
+                ZipError::UnseekableFile,
             )),
         }
     }
@@ -182,8 +184,8 @@ impl<Io: Read + Seek> Compression<Io> {
             }
             CompressionMethod::Zstd => Self::Zstd(ZstdDecoder::new(io)?),
             CompressionMethod::Xz => Self::Xz(XzDecoder::new(io)),
-            CompressionMethod::Unsupported(id) => {
-                return Err(ZipError::UnsupportedCompressionMethod(id))
+            CompressionMethod::Unsupported => {
+                return Err(ZipError::Unsupported("compression method"));
             }
         })
     }
@@ -209,7 +211,7 @@ impl<Io: Read + Seek> Seek for Compression<Io> {
             Compression::Store(io) => io.seek(pos),
             _ => Err(IoError::new(
                 IoErrorKind::Unsupported,
-                ZipError::CompressedDataIsUnseekable,
+                ZipError::UnseekableFile,
             )),
         }
     }
@@ -235,7 +237,7 @@ impl<'d, Io: Read + Seek> ZipFileReader<'d, Io> {
 
         let buf = io.read_arr::<30>()?;
         if buf[..4] != FILE_HEADER_SIGNATURE {
-            return Err(ZipError::InvalidFileHeaderSignature);
+            return Err(ZipError::InvalidSignature("FileHeader"));
         }
 
         let cursor = io.seek(SeekFrom::Start(