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authorJakob Unterwurzacher2019-02-17 17:13:20 +0100
committerJakob Unterwurzacher2019-02-17 17:13:20 +0100
commit179471b6486b2cb3e6e24eed1d9f86f2e880e334 (patch)
tree2a15b63aba21a7e86dd8382de55d722bd8ea7089 /internal/contentenc/file_header.go
parent19cb6d046aac92f44722c17ba9a371b08ca0be6a (diff)
ParseHeader: print hexdump on error
Should help debugging https://github.com/rfjakob/gocryptfs/issues/363
Diffstat (limited to 'internal/contentenc/file_header.go')
-rw-r--r--internal/contentenc/file_header.go7
1 files changed, 5 insertions, 2 deletions
diff --git a/internal/contentenc/file_header.go b/internal/contentenc/file_header.go
index 62d24cb..5f8bd63 100644
--- a/internal/contentenc/file_header.go
+++ b/internal/contentenc/file_header.go
@@ -7,6 +7,7 @@ package contentenc
import (
"bytes"
"encoding/binary"
+ "encoding/hex"
"fmt"
"log"
@@ -52,11 +53,13 @@ func ParseHeader(buf []byte) (*FileHeader, error) {
var h FileHeader
h.Version = binary.BigEndian.Uint16(buf[0:headerVersionLen])
if h.Version != CurrentVersion {
- return nil, fmt.Errorf("ParseHeader: invalid version, want=%d have=%d", CurrentVersion, h.Version)
+ return nil, fmt.Errorf("ParseHeader: invalid version, want=%d have=%d. Hexdump: %s",
+ CurrentVersion, h.Version, hex.EncodeToString(buf))
}
h.ID = buf[headerVersionLen:]
if bytes.Equal(h.ID, allZeroFileID) {
- return nil, fmt.Errorf("ParseHeader: file id is all-zero")
+ return nil, fmt.Errorf("ParseHeader: file id is all-zero. Hexdump: %s",
+ hex.EncodeToString(buf))
}
return &h, nil
}