diff options
| -rw-r--r-- | src/pkg/archive/tar/writer.go | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/pkg/archive/tar/writer.go b/src/pkg/archive/tar/writer.go index 6eff6f6f8..d107dbbb5 100644 --- a/src/pkg/archive/tar/writer.go +++ b/src/pkg/archive/tar/writer.go @@ -37,8 +37,9 @@ type Writer struct { nb int64 // number of unwritten bytes for current file entry pad int64 // amount of padding to write after current file entry closed bool - usedBinary bool // whether the binary numeric field extension was used - preferPax bool // use pax header instead of binary numeric header + usedBinary bool // whether the binary numeric field extension was used + preferPax bool // use pax header instead of binary numeric header + hdrBuff [blockSize]byte // buffer to use in writeHeader } // NewWriter creates a new Writer writing to w. @@ -160,7 +161,8 @@ func (tw *Writer) writeHeader(hdr *Header, allowPax bool) error { // subsecond time resolution, but for now let's just capture // too long fields or non ascii characters - header := make([]byte, blockSize) + header := tw.hdrBuff[:] + copy(header, zeroBlock) s := slicer(header) // keep a reference to the filename to allow to overwrite it later if we detect that we can use ustar longnames instead of pax |