contentenc: rename PlaintextRange and CiphertextRange

The name could be misunderstood and actually caused a bug:
doWrite used to always preallocate 4128 instead of the actual
data length.

1 files changed, 6 insertions, 8 deletions

diff --git a/internal/contentenc/intrablock.go b/internal/contentenc/intrablock.go
index 330b980..ec9562d 100644
--- a/internal/contentenc/intrablock.go
+++ b/internal/contentenc/intrablock.go
@@ -16,16 +16,14 @@ func (ib *intraBlock) IsPartial() bool {
 	return false
 }
 
-// CiphertextRange - get byte range in ciphertext file corresponding to BlockNo
-// (complete block)
-func (ib *intraBlock) CiphertextRange() (offset uint64, length uint64) {
-	return ib.fs.BlockNoToCipherOff(ib.BlockNo), ib.fs.cipherBS
+// BlockCipherOff returns the ciphertext offset corresponding to BlockNo
+func (ib *intraBlock) BlockCipherOff() (offset uint64) {
+	return ib.fs.BlockNoToCipherOff(ib.BlockNo)
 }
 
-// PlaintextRange - get byte range in plaintext corresponding to BlockNo
-// (complete block)
-func (ib *intraBlock) PlaintextRange() (offset uint64, length uint64) {
-	return ib.fs.BlockNoToPlainOff(ib.BlockNo), ib.fs.plainBS
+// BlockPlainOff returns the plaintext offset corresponding to BlockNo
+func (ib *intraBlock) BlockPlainOff() (offset uint64) {
+	return ib.fs.BlockNoToPlainOff(ib.BlockNo)
 }
 
 // CropBlock - crop a potentially larger plaintext block down to the relevant part