Method _proc_gnusparse_00

Lib/tarfile.py:1573–1591

Process a GNU tar extended sparse header, version 0.0.

(self, next, raw_headers)

        return next

    def _proc_gnusparse_00(self, next, raw_headers):
        """Process a GNU tar extended sparse header, version 0.0.
        """
        offsets = []
        numbytes = []
        for _, keyword, value in raw_headers:
            if keyword == b"GNU.sparse.offset":
                try:
                    offsets.append(int(value.decode()))
                except ValueError:
                    raise InvalidHeaderError("invalid header")

            elif keyword == b"GNU.sparse.numbytes":
                try:
                    numbytes.append(int(value.decode()))
                except ValueError:
                    raise InvalidHeaderError("invalid header")

        next.sparse = list(zip(offsets, numbytes))

    def _proc_gnusparse_01(self, next, pax_headers):
        """Process a GNU tar extended sparse header, version 0.1.