diff options
| author | Jakob Unterwurzacher | 2019-10-06 19:36:04 +0200 |
|---|---|---|
| committer | Jakob Unterwurzacher | 2019-10-06 19:37:51 +0200 |
| commit | 43265940fa2d43ebea8edb00373aa4d6718e2ea7 (patch) | |
| tree | 6427c63e2c4a451192d2f39cda4a105e4ebe291d /internal/fusefrontend/file.go | |
| parent | b3c88f573f4c1b269e78dd7d1dbd6de73d477694 (diff) | |
fusefrontend: print file hexdump on header error
This should help debugging https://github.com/rfjakob/gocryptfs/issues/363 ,
but does no harm in normal operation as it only prints ciphertext to the log.
Diffstat (limited to 'internal/fusefrontend/file.go')
| -rw-r--r-- | internal/fusefrontend/file.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/internal/fusefrontend/file.go b/internal/fusefrontend/file.go index 50aa551..3313934 100644 --- a/internal/fusefrontend/file.go +++ b/internal/fusefrontend/file.go @@ -4,6 +4,7 @@ package fusefrontend import ( "bytes" + "encoding/hex" "fmt" "io" "log" @@ -158,7 +159,12 @@ func (f *File) doRead(dst []byte, off uint64, length uint64) ([]byte, fuse.Statu // Empty file return nil, fuse.OK } - tlog.Warn.Printf("doRead %d: corrupt header: %v", f.qIno.Ino, err) + buf := make([]byte, 100) + n, _ := f.fd.ReadAt(buf, 0) + buf = buf[:n] + hexdump := hex.EncodeToString(buf) + tlog.Warn.Printf("doRead %d: corrupt header: %v\nFile hexdump (%d bytes): %s", + f.qIno.Ino, err, n, hexdump) return nil, fuse.EIO } // Save into the file table |