diff options
Diffstat (limited to 'libgo/go/archive/tar/writer.go')
| -rw-r--r-- | libgo/go/archive/tar/writer.go | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/libgo/go/archive/tar/writer.go b/libgo/go/archive/tar/writer.go index d35726bf9d8..b2b7a58a10a 100644 --- a/libgo/go/archive/tar/writer.go +++ b/libgo/go/archive/tar/writer.go @@ -5,18 +5,19 @@ package tar // TODO(dsymonds): -// - catch more errors (no first header, write after close, etc.) +// - catch more errors (no first header, etc.) import ( "errors" + "fmt" "io" "strconv" ) var ( - ErrWriteTooLong = errors.New("write too long") - ErrFieldTooLong = errors.New("header field too long") - ErrWriteAfterClose = errors.New("write after close") + ErrWriteTooLong = errors.New("archive/tar: write too long") + ErrFieldTooLong = errors.New("archive/tar: header field too long") + ErrWriteAfterClose = errors.New("archive/tar: write after close") ) // A Writer provides sequential writing of a tar archive in POSIX.1 format. @@ -48,6 +49,11 @@ func NewWriter(w io.Writer) *Writer { return &Writer{w: w} } // Flush finishes writing the current file (optional). func (tw *Writer) Flush() error { + if tw.nb > 0 { + tw.err = fmt.Errorf("archive/tar: missed writing %d bytes", tw.nb) + return tw.err + } + n := tw.nb + tw.pad for n > 0 && tw.err == nil { nr := n @@ -193,6 +199,9 @@ func (tw *Writer) Close() error { } tw.Flush() tw.closed = true + if tw.err != nil { + return tw.err + } // trailer: two zero blocks for i := 0; i < 2; i++ { |