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@@ -1,1054 +0,0 @@
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-// Copyright 2009 The Go Authors. All rights reserved.
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-// Use of this source code is governed by a BSD-style
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-// license that can be found in the LICENSE file.
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-
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-package tar
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-
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-import (
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- "bytes"
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- "crypto/md5"
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- "fmt"
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- "io"
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- "io/ioutil"
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- "math"
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- "os"
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- "reflect"
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- "strings"
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- "testing"
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- "time"
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-)
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-
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-func TestReader(t *testing.T) {
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- vectors := []struct {
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- file string // Test input file
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- headers []*Header // Expected output headers
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- chksums []string // MD5 checksum of files, leave as nil if not checked
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- err error // Expected error to occur
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- }{{
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- file: "testdata/gnu.tar",
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- headers: []*Header{{
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- Name: "small.txt",
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- Mode: 0640,
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- Uid: 73025,
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- Gid: 5000,
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- Size: 5,
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- ModTime: time.Unix(1244428340, 0),
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- Typeflag: '0',
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- Uname: "dsymonds",
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- Gname: "eng",
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- }, {
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- Name: "small2.txt",
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- Mode: 0640,
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- Uid: 73025,
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- Gid: 5000,
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- Size: 11,
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- ModTime: time.Unix(1244436044, 0),
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- Typeflag: '0',
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- Uname: "dsymonds",
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- Gname: "eng",
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- }},
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- chksums: []string{
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- "e38b27eaccb4391bdec553a7f3ae6b2f",
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- "c65bd2e50a56a2138bf1716f2fd56fe9",
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- },
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- }, {
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- file: "testdata/sparse-formats.tar",
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- headers: []*Header{{
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- Name: "sparse-gnu",
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- Mode: 420,
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- Uid: 1000,
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- Gid: 1000,
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- Size: 200,
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- ModTime: time.Unix(1392395740, 0),
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- Typeflag: 0x53,
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- Linkname: "",
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- Uname: "david",
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- Gname: "david",
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- Devmajor: 0,
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- Devminor: 0,
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- }, {
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- Name: "sparse-posix-0.0",
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- Mode: 420,
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- Uid: 1000,
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- Gid: 1000,
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- Size: 200,
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- ModTime: time.Unix(1392342187, 0),
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- Typeflag: 0x30,
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- Linkname: "",
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- Uname: "david",
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- Gname: "david",
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- Devmajor: 0,
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- Devminor: 0,
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- }, {
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- Name: "sparse-posix-0.1",
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- Mode: 420,
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- Uid: 1000,
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- Gid: 1000,
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- Size: 200,
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- ModTime: time.Unix(1392340456, 0),
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- Typeflag: 0x30,
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- Linkname: "",
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- Uname: "david",
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- Gname: "david",
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- Devmajor: 0,
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- Devminor: 0,
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- }, {
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- Name: "sparse-posix-1.0",
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- Mode: 420,
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- Uid: 1000,
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- Gid: 1000,
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- Size: 200,
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- ModTime: time.Unix(1392337404, 0),
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- Typeflag: 0x30,
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- Linkname: "",
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- Uname: "david",
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- Gname: "david",
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- Devmajor: 0,
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- Devminor: 0,
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- }, {
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- Name: "end",
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- Mode: 420,
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- Uid: 1000,
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- Gid: 1000,
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- Size: 4,
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- ModTime: time.Unix(1392398319, 0),
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- Typeflag: 0x30,
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- Linkname: "",
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- Uname: "david",
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- Gname: "david",
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- Devmajor: 0,
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- Devminor: 0,
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- }},
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- chksums: []string{
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- "6f53234398c2449fe67c1812d993012f",
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- "6f53234398c2449fe67c1812d993012f",
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- "6f53234398c2449fe67c1812d993012f",
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- "6f53234398c2449fe67c1812d993012f",
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- "b0061974914468de549a2af8ced10316",
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- },
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- }, {
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- file: "testdata/star.tar",
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- headers: []*Header{{
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- Name: "small.txt",
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- Mode: 0640,
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- Uid: 73025,
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- Gid: 5000,
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- Size: 5,
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- ModTime: time.Unix(1244592783, 0),
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- Typeflag: '0',
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- Uname: "dsymonds",
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- Gname: "eng",
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- AccessTime: time.Unix(1244592783, 0),
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- ChangeTime: time.Unix(1244592783, 0),
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- }, {
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- Name: "small2.txt",
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- Mode: 0640,
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- Uid: 73025,
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- Gid: 5000,
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- Size: 11,
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- ModTime: time.Unix(1244592783, 0),
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- Typeflag: '0',
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- Uname: "dsymonds",
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- Gname: "eng",
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- AccessTime: time.Unix(1244592783, 0),
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- ChangeTime: time.Unix(1244592783, 0),
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- }},
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- }, {
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- file: "testdata/v7.tar",
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- headers: []*Header{{
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- Name: "small.txt",
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- Mode: 0444,
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- Uid: 73025,
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- Gid: 5000,
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- Size: 5,
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- ModTime: time.Unix(1244593104, 0),
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- Typeflag: '\x00',
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- }, {
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- Name: "small2.txt",
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- Mode: 0444,
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- Uid: 73025,
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- Gid: 5000,
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- Size: 11,
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- ModTime: time.Unix(1244593104, 0),
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- Typeflag: '\x00',
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- }},
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- }, {
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- file: "testdata/pax.tar",
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- headers: []*Header{{
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- Name: "a/123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100",
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- Mode: 0664,
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- Uid: 1000,
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- Gid: 1000,
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- Uname: "shane",
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- Gname: "shane",
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- Size: 7,
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- ModTime: time.Unix(1350244992, 23960108),
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- ChangeTime: time.Unix(1350244992, 23960108),
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- AccessTime: time.Unix(1350244992, 23960108),
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- Typeflag: TypeReg,
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- }, {
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- Name: "a/b",
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- Mode: 0777,
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- Uid: 1000,
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- Gid: 1000,
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- Uname: "shane",
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- Gname: "shane",
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- Size: 0,
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- ModTime: time.Unix(1350266320, 910238425),
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- ChangeTime: time.Unix(1350266320, 910238425),
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- AccessTime: time.Unix(1350266320, 910238425),
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- Typeflag: TypeSymlink,
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- Linkname: "123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100",
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- }},
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- }, {
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- file: "testdata/pax-bad-hdr-file.tar",
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- err: ErrHeader,
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- }, {
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- file: "testdata/pax-bad-mtime-file.tar",
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- err: ErrHeader,
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- }, {
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- file: "testdata/pax-pos-size-file.tar",
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- headers: []*Header{{
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- Name: "foo",
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- Mode: 0640,
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- Uid: 319973,
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- Gid: 5000,
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- Size: 999,
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- ModTime: time.Unix(1442282516, 0),
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- Typeflag: '0',
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- Uname: "joetsai",
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- Gname: "eng",
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- }},
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- chksums: []string{
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- "0afb597b283fe61b5d4879669a350556",
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- },
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- }, {
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- file: "testdata/nil-uid.tar", // golang.org/issue/5290
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- headers: []*Header{{
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- Name: "P1050238.JPG.log",
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- Mode: 0664,
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- Uid: 0,
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- Gid: 0,
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- Size: 14,
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- ModTime: time.Unix(1365454838, 0),
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- Typeflag: TypeReg,
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- Linkname: "",
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- Uname: "eyefi",
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- Gname: "eyefi",
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- Devmajor: 0,
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- Devminor: 0,
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- }},
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- }, {
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- file: "testdata/xattrs.tar",
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- headers: []*Header{{
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- Name: "small.txt",
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- Mode: 0644,
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- Uid: 1000,
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- Gid: 10,
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- Size: 5,
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- ModTime: time.Unix(1386065770, 448252320),
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- Typeflag: '0',
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- Uname: "alex",
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- Gname: "wheel",
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- AccessTime: time.Unix(1389782991, 419875220),
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- ChangeTime: time.Unix(1389782956, 794414986),
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- Xattrs: map[string]string{
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- "user.key": "value",
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- "user.key2": "value2",
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- // Interestingly, selinux encodes the terminating null inside the xattr
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- "security.selinux": "unconfined_u:object_r:default_t:s0\x00",
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- },
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- }, {
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- Name: "small2.txt",
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- Mode: 0644,
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- Uid: 1000,
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- Gid: 10,
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- Size: 11,
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- ModTime: time.Unix(1386065770, 449252304),
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- Typeflag: '0',
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- Uname: "alex",
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- Gname: "wheel",
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- AccessTime: time.Unix(1389782991, 419875220),
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- ChangeTime: time.Unix(1386065770, 449252304),
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- Xattrs: map[string]string{
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- "security.selinux": "unconfined_u:object_r:default_t:s0\x00",
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- },
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- }},
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- }, {
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- // Matches the behavior of GNU, BSD, and STAR tar utilities.
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- file: "testdata/gnu-multi-hdrs.tar",
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- headers: []*Header{{
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- Name: "GNU2/GNU2/long-path-name",
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- Linkname: "GNU4/GNU4/long-linkpath-name",
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- ModTime: time.Unix(0, 0),
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- Typeflag: '2',
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- }},
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- }, {
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- // Matches the behavior of GNU and BSD tar utilities.
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- file: "testdata/pax-multi-hdrs.tar",
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- headers: []*Header{{
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- Name: "bar",
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- Linkname: "PAX4/PAX4/long-linkpath-name",
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- ModTime: time.Unix(0, 0),
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- Typeflag: '2',
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- }},
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- }, {
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- file: "testdata/neg-size.tar",
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- err: ErrHeader,
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- }, {
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- file: "testdata/issue10968.tar",
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- err: ErrHeader,
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- }, {
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- file: "testdata/issue11169.tar",
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- err: ErrHeader,
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- }, {
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- file: "testdata/issue12435.tar",
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- err: ErrHeader,
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- }}
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-
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- for i, v := range vectors {
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- f, err := os.Open(v.file)
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- if err != nil {
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- t.Errorf("file %s, test %d: unexpected error: %v", v.file, i, err)
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- continue
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- }
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- defer f.Close()
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-
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- // Capture all headers and checksums.
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- var (
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- tr = NewReader(f)
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- hdrs []*Header
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- chksums []string
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- rdbuf = make([]byte, 8)
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- )
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- for {
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- var hdr *Header
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- hdr, err = tr.Next()
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- if err != nil {
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- if err == io.EOF {
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- err = nil // Expected error
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- }
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- break
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- }
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- hdrs = append(hdrs, hdr)
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-
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- if v.chksums == nil {
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- continue
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- }
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- h := md5.New()
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- _, err = io.CopyBuffer(h, tr, rdbuf) // Effectively an incremental read
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- if err != nil {
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- break
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- }
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- chksums = append(chksums, fmt.Sprintf("%x", h.Sum(nil)))
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- }
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-
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- for j, hdr := range hdrs {
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- if j >= len(v.headers) {
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- t.Errorf("file %s, test %d, entry %d: unexpected header:\ngot %+v",
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- v.file, i, j, *hdr)
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- continue
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- }
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- if !reflect.DeepEqual(*hdr, *v.headers[j]) {
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- t.Errorf("file %s, test %d, entry %d: incorrect header:\ngot %+v\nwant %+v",
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- v.file, i, j, *hdr, *v.headers[j])
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- }
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- }
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- if len(hdrs) != len(v.headers) {
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- t.Errorf("file %s, test %d: got %d headers, want %d headers",
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- v.file, i, len(hdrs), len(v.headers))
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- }
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-
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- for j, sum := range chksums {
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- if j >= len(v.chksums) {
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- t.Errorf("file %s, test %d, entry %d: unexpected sum: got %s",
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- v.file, i, j, sum)
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- continue
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- }
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- if sum != v.chksums[j] {
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- t.Errorf("file %s, test %d, entry %d: incorrect checksum: got %s, want %s",
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- v.file, i, j, sum, v.chksums[j])
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- }
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- }
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-
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- if err != v.err {
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- t.Errorf("file %s, test %d: unexpected error: got %v, want %v",
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- v.file, i, err, v.err)
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- }
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- f.Close()
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- }
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-}
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-
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-func TestPartialRead(t *testing.T) {
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- f, err := os.Open("testdata/gnu.tar")
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- if err != nil {
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- t.Fatalf("Unexpected error: %v", err)
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- }
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- defer f.Close()
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-
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- tr := NewReader(f)
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-
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- // Read the first four bytes; Next() should skip the last byte.
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- hdr, err := tr.Next()
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- if err != nil || hdr == nil {
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- t.Fatalf("Didn't get first file: %v", err)
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- }
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- buf := make([]byte, 4)
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- if _, err := io.ReadFull(tr, buf); err != nil {
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- t.Fatalf("Unexpected error: %v", err)
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- }
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- if expected := []byte("Kilt"); !bytes.Equal(buf, expected) {
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- t.Errorf("Contents = %v, want %v", buf, expected)
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- }
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-
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- // Second file
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- hdr, err = tr.Next()
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- if err != nil || hdr == nil {
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- t.Fatalf("Didn't get second file: %v", err)
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- }
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- buf = make([]byte, 6)
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|
|
- if _, err := io.ReadFull(tr, buf); err != nil {
|
|
|
- t.Fatalf("Unexpected error: %v", err)
|
|
|
- }
|
|
|
- if expected := []byte("Google"); !bytes.Equal(buf, expected) {
|
|
|
- t.Errorf("Contents = %v, want %v", buf, expected)
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestSparseFileReader(t *testing.T) {
|
|
|
- vectors := []struct {
|
|
|
- realSize int64 // Real size of the output file
|
|
|
- sparseMap []sparseEntry // Input sparse map
|
|
|
- sparseData string // Input compact data
|
|
|
- expected string // Expected output data
|
|
|
- err error // Expected error outcome
|
|
|
- }{{
|
|
|
- realSize: 8,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 0, numBytes: 2},
|
|
|
- {offset: 5, numBytes: 3},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- expected: "ab\x00\x00\x00cde",
|
|
|
- }, {
|
|
|
- realSize: 10,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 0, numBytes: 2},
|
|
|
- {offset: 5, numBytes: 3},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- expected: "ab\x00\x00\x00cde\x00\x00",
|
|
|
- }, {
|
|
|
- realSize: 8,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 2},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- expected: "\x00abc\x00\x00de",
|
|
|
- }, {
|
|
|
- realSize: 8,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 0},
|
|
|
- {offset: 6, numBytes: 0},
|
|
|
- {offset: 6, numBytes: 2},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- expected: "\x00abc\x00\x00de",
|
|
|
- }, {
|
|
|
- realSize: 10,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 2},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- expected: "\x00abc\x00\x00de\x00\x00",
|
|
|
- }, {
|
|
|
- realSize: 10,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 2},
|
|
|
- {offset: 8, numBytes: 0},
|
|
|
- {offset: 8, numBytes: 0},
|
|
|
- {offset: 8, numBytes: 0},
|
|
|
- {offset: 8, numBytes: 0},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- expected: "\x00abc\x00\x00de\x00\x00",
|
|
|
- }, {
|
|
|
- realSize: 2,
|
|
|
- sparseMap: []sparseEntry{},
|
|
|
- sparseData: "",
|
|
|
- expected: "\x00\x00",
|
|
|
- }, {
|
|
|
- realSize: -2,
|
|
|
- sparseMap: []sparseEntry{},
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- realSize: -10,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 2},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- realSize: 10,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 5},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- realSize: 35,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: 5},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- err: io.ErrUnexpectedEOF,
|
|
|
- }, {
|
|
|
- realSize: 35,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 6, numBytes: -5},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- realSize: 35,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: math.MaxInt64, numBytes: 3},
|
|
|
- {offset: 6, numBytes: -5},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- realSize: 10,
|
|
|
- sparseMap: []sparseEntry{
|
|
|
- {offset: 1, numBytes: 3},
|
|
|
- {offset: 2, numBytes: 2},
|
|
|
- },
|
|
|
- sparseData: "abcde",
|
|
|
- err: ErrHeader,
|
|
|
- }}
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- r := bytes.NewReader([]byte(v.sparseData))
|
|
|
- rfr := ®FileReader{r: r, nb: int64(len(v.sparseData))}
|
|
|
-
|
|
|
- var (
|
|
|
- sfr *sparseFileReader
|
|
|
- err error
|
|
|
- buf []byte
|
|
|
- )
|
|
|
-
|
|
|
- sfr, err = newSparseFileReader(rfr, v.sparseMap, v.realSize)
|
|
|
- if err != nil {
|
|
|
- goto fail
|
|
|
- }
|
|
|
- if sfr.numBytes() != int64(len(v.sparseData)) {
|
|
|
- t.Errorf("test %d, numBytes() before reading: got %d, want %d", i, sfr.numBytes(), len(v.sparseData))
|
|
|
- }
|
|
|
- buf, err = ioutil.ReadAll(sfr)
|
|
|
- if err != nil {
|
|
|
- goto fail
|
|
|
- }
|
|
|
- if string(buf) != v.expected {
|
|
|
- t.Errorf("test %d, ReadAll(): got %q, want %q", i, string(buf), v.expected)
|
|
|
- }
|
|
|
- if sfr.numBytes() != 0 {
|
|
|
- t.Errorf("test %d, numBytes() after reading: got %d, want %d", i, sfr.numBytes(), 0)
|
|
|
- }
|
|
|
-
|
|
|
- fail:
|
|
|
- if err != v.err {
|
|
|
- t.Errorf("test %d, unexpected error: got %v, want %v", i, err, v.err)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestReadOldGNUSparseMap(t *testing.T) {
|
|
|
- const (
|
|
|
- t00 = "00000000000\x0000000000000\x00"
|
|
|
- t11 = "00000000001\x0000000000001\x00"
|
|
|
- t12 = "00000000001\x0000000000002\x00"
|
|
|
- t21 = "00000000002\x0000000000001\x00"
|
|
|
- )
|
|
|
-
|
|
|
- mkBlk := func(size, sp0, sp1, sp2, sp3, ext string, format int) *block {
|
|
|
- var blk block
|
|
|
- copy(blk.GNU().RealSize(), size)
|
|
|
- copy(blk.GNU().Sparse().Entry(0), sp0)
|
|
|
- copy(blk.GNU().Sparse().Entry(1), sp1)
|
|
|
- copy(blk.GNU().Sparse().Entry(2), sp2)
|
|
|
- copy(blk.GNU().Sparse().Entry(3), sp3)
|
|
|
- copy(blk.GNU().Sparse().IsExtended(), ext)
|
|
|
- if format != formatUnknown {
|
|
|
- blk.SetFormat(format)
|
|
|
- }
|
|
|
- return &blk
|
|
|
- }
|
|
|
-
|
|
|
- vectors := []struct {
|
|
|
- data string // Input data
|
|
|
- rawHdr *block // Input raw header
|
|
|
- want []sparseEntry // Expected sparse entries to be outputted
|
|
|
- err error // Expected error to be returned
|
|
|
- }{
|
|
|
- {"", mkBlk("", "", "", "", "", "", formatUnknown), nil, ErrHeader},
|
|
|
- {"", mkBlk("1234", "fewa", "", "", "", "", formatGNU), nil, ErrHeader},
|
|
|
- {"", mkBlk("0031", "", "", "", "", "", formatGNU), nil, nil},
|
|
|
- {"", mkBlk("1234", t00, t11, "", "", "", formatGNU),
|
|
|
- []sparseEntry{{0, 0}, {1, 1}}, nil},
|
|
|
- {"", mkBlk("1234", t11, t12, t21, t11, "", formatGNU),
|
|
|
- []sparseEntry{{1, 1}, {1, 2}, {2, 1}, {1, 1}}, nil},
|
|
|
- {"", mkBlk("1234", t11, t12, t21, t11, "\x80", formatGNU),
|
|
|
- []sparseEntry{}, io.ErrUnexpectedEOF},
|
|
|
- {t11 + t11,
|
|
|
- mkBlk("1234", t11, t12, t21, t11, "\x80", formatGNU),
|
|
|
- []sparseEntry{}, io.ErrUnexpectedEOF},
|
|
|
- {t11 + t21 + strings.Repeat("\x00", 512),
|
|
|
- mkBlk("1234", t11, t12, t21, t11, "\x80", formatGNU),
|
|
|
- []sparseEntry{{1, 1}, {1, 2}, {2, 1}, {1, 1}, {1, 1}, {2, 1}}, nil},
|
|
|
- }
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- tr := Reader{r: strings.NewReader(v.data)}
|
|
|
- hdr := new(Header)
|
|
|
- got, err := tr.readOldGNUSparseMap(hdr, v.rawHdr)
|
|
|
- if !reflect.DeepEqual(got, v.want) && !(len(got) == 0 && len(v.want) == 0) {
|
|
|
- t.Errorf("test %d, readOldGNUSparseMap(...): got %v, want %v", i, got, v.want)
|
|
|
- }
|
|
|
- if err != v.err {
|
|
|
- t.Errorf("test %d, unexpected error: got %v, want %v", i, err, v.err)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestReadGNUSparseMap0x1(t *testing.T) {
|
|
|
- const (
|
|
|
- maxUint = ^uint(0)
|
|
|
- maxInt = int(maxUint >> 1)
|
|
|
- )
|
|
|
- var (
|
|
|
- big1 = fmt.Sprintf("%d", int64(maxInt))
|
|
|
- big2 = fmt.Sprintf("%d", (int64(maxInt)/2)+1)
|
|
|
- big3 = fmt.Sprintf("%d", (int64(maxInt) / 3))
|
|
|
- )
|
|
|
-
|
|
|
- vectors := []struct {
|
|
|
- extHdrs map[string]string // Input data
|
|
|
- sparseMap []sparseEntry // Expected sparse entries to be outputted
|
|
|
- err error // Expected errors that may be raised
|
|
|
- }{{
|
|
|
- extHdrs: map[string]string{paxGNUSparseNumBlocks: "-4"},
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{paxGNUSparseNumBlocks: "fee "},
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: big1,
|
|
|
- paxGNUSparseMap: "0,5,10,5,20,5,30,5",
|
|
|
- },
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: big2,
|
|
|
- paxGNUSparseMap: "0,5,10,5,20,5,30,5",
|
|
|
- },
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: big3,
|
|
|
- paxGNUSparseMap: "0,5,10,5,20,5,30,5",
|
|
|
- },
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: "4",
|
|
|
- paxGNUSparseMap: "0.5,5,10,5,20,5,30,5",
|
|
|
- },
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: "4",
|
|
|
- paxGNUSparseMap: "0,5.5,10,5,20,5,30,5",
|
|
|
- },
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: "4",
|
|
|
- paxGNUSparseMap: "0,fewafewa.5,fewafw,5,20,5,30,5",
|
|
|
- },
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- extHdrs: map[string]string{
|
|
|
- paxGNUSparseNumBlocks: "4",
|
|
|
- paxGNUSparseMap: "0,5,10,5,20,5,30,5",
|
|
|
- },
|
|
|
- sparseMap: []sparseEntry{{0, 5}, {10, 5}, {20, 5}, {30, 5}},
|
|
|
- }}
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- sp, err := readGNUSparseMap0x1(v.extHdrs)
|
|
|
- if !reflect.DeepEqual(sp, v.sparseMap) && !(len(sp) == 0 && len(v.sparseMap) == 0) {
|
|
|
- t.Errorf("test %d, readGNUSparseMap0x1(...): got %v, want %v", i, sp, v.sparseMap)
|
|
|
- }
|
|
|
- if err != v.err {
|
|
|
- t.Errorf("test %d, unexpected error: got %v, want %v", i, err, v.err)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestReadGNUSparseMap1x0(t *testing.T) {
|
|
|
- sp := []sparseEntry{{1, 2}, {3, 4}}
|
|
|
- for i := 0; i < 98; i++ {
|
|
|
- sp = append(sp, sparseEntry{54321, 12345})
|
|
|
- }
|
|
|
-
|
|
|
- vectors := []struct {
|
|
|
- input string // Input data
|
|
|
- sparseMap []sparseEntry // Expected sparse entries to be outputted
|
|
|
- cnt int // Expected number of bytes read
|
|
|
- err error // Expected errors that may be raised
|
|
|
- }{{
|
|
|
- input: "",
|
|
|
- cnt: 0,
|
|
|
- err: io.ErrUnexpectedEOF,
|
|
|
- }, {
|
|
|
- input: "ab",
|
|
|
- cnt: 2,
|
|
|
- err: io.ErrUnexpectedEOF,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("\x00", 512),
|
|
|
- cnt: 512,
|
|
|
- err: io.ErrUnexpectedEOF,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("\x00", 511) + "\n",
|
|
|
- cnt: 512,
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("\n", 512),
|
|
|
- cnt: 512,
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- input: "0\n" + strings.Repeat("\x00", 510) + strings.Repeat("a", 512),
|
|
|
- sparseMap: []sparseEntry{},
|
|
|
- cnt: 512,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("0", 512) + "0\n" + strings.Repeat("\x00", 510),
|
|
|
- sparseMap: []sparseEntry{},
|
|
|
- cnt: 1024,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("0", 1024) + "1\n2\n3\n" + strings.Repeat("\x00", 506),
|
|
|
- sparseMap: []sparseEntry{{2, 3}},
|
|
|
- cnt: 1536,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("0", 1024) + "1\n2\n\n" + strings.Repeat("\x00", 509),
|
|
|
- cnt: 1536,
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- input: strings.Repeat("0", 1024) + "1\n2\n" + strings.Repeat("\x00", 508),
|
|
|
- cnt: 1536,
|
|
|
- err: io.ErrUnexpectedEOF,
|
|
|
- }, {
|
|
|
- input: "-1\n2\n\n" + strings.Repeat("\x00", 506),
|
|
|
- cnt: 512,
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- input: "1\nk\n2\n" + strings.Repeat("\x00", 506),
|
|
|
- cnt: 512,
|
|
|
- err: ErrHeader,
|
|
|
- }, {
|
|
|
- input: "100\n1\n2\n3\n4\n" + strings.Repeat("54321\n0000000000000012345\n", 98) + strings.Repeat("\x00", 512),
|
|
|
- cnt: 2560,
|
|
|
- sparseMap: sp,
|
|
|
- }}
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- r := strings.NewReader(v.input)
|
|
|
- sp, err := readGNUSparseMap1x0(r)
|
|
|
- if !reflect.DeepEqual(sp, v.sparseMap) && !(len(sp) == 0 && len(v.sparseMap) == 0) {
|
|
|
- t.Errorf("test %d, readGNUSparseMap1x0(...): got %v, want %v", i, sp, v.sparseMap)
|
|
|
- }
|
|
|
- if numBytes := len(v.input) - r.Len(); numBytes != v.cnt {
|
|
|
- t.Errorf("test %d, bytes read: got %v, want %v", i, numBytes, v.cnt)
|
|
|
- }
|
|
|
- if err != v.err {
|
|
|
- t.Errorf("test %d, unexpected error: got %v, want %v", i, err, v.err)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestUninitializedRead(t *testing.T) {
|
|
|
- f, err := os.Open("testdata/gnu.tar")
|
|
|
- if err != nil {
|
|
|
- t.Fatalf("Unexpected error: %v", err)
|
|
|
- }
|
|
|
- defer f.Close()
|
|
|
-
|
|
|
- tr := NewReader(f)
|
|
|
- _, err = tr.Read([]byte{})
|
|
|
- if err == nil || err != io.EOF {
|
|
|
- t.Errorf("Unexpected error: %v, wanted %v", err, io.EOF)
|
|
|
- }
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-type reader struct{ io.Reader }
|
|
|
-type readSeeker struct{ io.ReadSeeker }
|
|
|
-type readBadSeeker struct{ io.ReadSeeker }
|
|
|
-
|
|
|
-func (rbs *readBadSeeker) Seek(int64, int) (int64, error) { return 0, fmt.Errorf("illegal seek") }
|
|
|
-
|
|
|
-// TestReadTruncation test the ending condition on various truncated files and
|
|
|
-// that truncated files are still detected even if the underlying io.Reader
|
|
|
-// satisfies io.Seeker.
|
|
|
-func TestReadTruncation(t *testing.T) {
|
|
|
- var ss []string
|
|
|
- for _, p := range []string{
|
|
|
- "testdata/gnu.tar",
|
|
|
- "testdata/ustar-file-reg.tar",
|
|
|
- "testdata/pax-path-hdr.tar",
|
|
|
- "testdata/sparse-formats.tar",
|
|
|
- } {
|
|
|
- buf, err := ioutil.ReadFile(p)
|
|
|
- if err != nil {
|
|
|
- t.Fatalf("unexpected error: %v", err)
|
|
|
- }
|
|
|
- ss = append(ss, string(buf))
|
|
|
- }
|
|
|
-
|
|
|
- data1, data2, pax, sparse := ss[0], ss[1], ss[2], ss[3]
|
|
|
- data2 += strings.Repeat("\x00", 10*512)
|
|
|
- trash := strings.Repeat("garbage ", 64) // Exactly 512 bytes
|
|
|
-
|
|
|
- vectors := []struct {
|
|
|
- input string // Input stream
|
|
|
- cnt int // Expected number of headers read
|
|
|
- err error // Expected error outcome
|
|
|
- }{
|
|
|
- {"", 0, io.EOF}, // Empty file is a "valid" tar file
|
|
|
- {data1[:511], 0, io.ErrUnexpectedEOF},
|
|
|
- {data1[:512], 1, io.ErrUnexpectedEOF},
|
|
|
- {data1[:1024], 1, io.EOF},
|
|
|
- {data1[:1536], 2, io.ErrUnexpectedEOF},
|
|
|
- {data1[:2048], 2, io.EOF},
|
|
|
- {data1, 2, io.EOF},
|
|
|
- {data1[:2048] + data2[:1536], 3, io.EOF},
|
|
|
- {data2[:511], 0, io.ErrUnexpectedEOF},
|
|
|
- {data2[:512], 1, io.ErrUnexpectedEOF},
|
|
|
- {data2[:1195], 1, io.ErrUnexpectedEOF},
|
|
|
- {data2[:1196], 1, io.EOF}, // Exact end of data and start of padding
|
|
|
- {data2[:1200], 1, io.EOF},
|
|
|
- {data2[:1535], 1, io.EOF},
|
|
|
- {data2[:1536], 1, io.EOF}, // Exact end of padding
|
|
|
- {data2[:1536] + trash[:1], 1, io.ErrUnexpectedEOF},
|
|
|
- {data2[:1536] + trash[:511], 1, io.ErrUnexpectedEOF},
|
|
|
- {data2[:1536] + trash, 1, ErrHeader},
|
|
|
- {data2[:2048], 1, io.EOF}, // Exactly 1 empty block
|
|
|
- {data2[:2048] + trash[:1], 1, io.ErrUnexpectedEOF},
|
|
|
- {data2[:2048] + trash[:511], 1, io.ErrUnexpectedEOF},
|
|
|
- {data2[:2048] + trash, 1, ErrHeader},
|
|
|
- {data2[:2560], 1, io.EOF}, // Exactly 2 empty blocks (normal end-of-stream)
|
|
|
- {data2[:2560] + trash[:1], 1, io.EOF},
|
|
|
- {data2[:2560] + trash[:511], 1, io.EOF},
|
|
|
- {data2[:2560] + trash, 1, io.EOF},
|
|
|
- {data2[:3072], 1, io.EOF},
|
|
|
- {pax, 0, io.EOF}, // PAX header without data is a "valid" tar file
|
|
|
- {pax + trash[:1], 0, io.ErrUnexpectedEOF},
|
|
|
- {pax + trash[:511], 0, io.ErrUnexpectedEOF},
|
|
|
- {sparse[:511], 0, io.ErrUnexpectedEOF},
|
|
|
- {sparse[:512], 0, io.ErrUnexpectedEOF},
|
|
|
- {sparse[:3584], 1, io.EOF},
|
|
|
- {sparse[:9200], 1, io.EOF}, // Terminate in padding of sparse header
|
|
|
- {sparse[:9216], 1, io.EOF},
|
|
|
- {sparse[:9728], 2, io.ErrUnexpectedEOF},
|
|
|
- {sparse[:10240], 2, io.EOF},
|
|
|
- {sparse[:11264], 2, io.ErrUnexpectedEOF},
|
|
|
- {sparse, 5, io.EOF},
|
|
|
- {sparse + trash, 5, io.EOF},
|
|
|
- }
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- for j := 0; j < 6; j++ {
|
|
|
- var tr *Reader
|
|
|
- var s1, s2 string
|
|
|
-
|
|
|
- switch j {
|
|
|
- case 0:
|
|
|
- tr = NewReader(&reader{strings.NewReader(v.input)})
|
|
|
- s1, s2 = "io.Reader", "auto"
|
|
|
- case 1:
|
|
|
- tr = NewReader(&reader{strings.NewReader(v.input)})
|
|
|
- s1, s2 = "io.Reader", "manual"
|
|
|
- case 2:
|
|
|
- tr = NewReader(&readSeeker{strings.NewReader(v.input)})
|
|
|
- s1, s2 = "io.ReadSeeker", "auto"
|
|
|
- case 3:
|
|
|
- tr = NewReader(&readSeeker{strings.NewReader(v.input)})
|
|
|
- s1, s2 = "io.ReadSeeker", "manual"
|
|
|
- case 4:
|
|
|
- tr = NewReader(&readBadSeeker{strings.NewReader(v.input)})
|
|
|
- s1, s2 = "ReadBadSeeker", "auto"
|
|
|
- case 5:
|
|
|
- tr = NewReader(&readBadSeeker{strings.NewReader(v.input)})
|
|
|
- s1, s2 = "ReadBadSeeker", "manual"
|
|
|
- }
|
|
|
-
|
|
|
- var cnt int
|
|
|
- var err error
|
|
|
- for {
|
|
|
- if _, err = tr.Next(); err != nil {
|
|
|
- break
|
|
|
- }
|
|
|
- cnt++
|
|
|
- if s2 == "manual" {
|
|
|
- if _, err = io.Copy(ioutil.Discard, tr); err != nil {
|
|
|
- break
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
- if err != v.err {
|
|
|
- t.Errorf("test %d, NewReader(%s(...)) with %s discard: got %v, want %v",
|
|
|
- i, s1, s2, err, v.err)
|
|
|
- }
|
|
|
- if cnt != v.cnt {
|
|
|
- t.Errorf("test %d, NewReader(%s(...)) with %s discard: got %d headers, want %d headers",
|
|
|
- i, s1, s2, cnt, v.cnt)
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-// TestReadHeaderOnly tests that Reader does not attempt to read special
|
|
|
-// header-only files.
|
|
|
-func TestReadHeaderOnly(t *testing.T) {
|
|
|
- f, err := os.Open("testdata/hdr-only.tar")
|
|
|
- if err != nil {
|
|
|
- t.Fatalf("unexpected error: %v", err)
|
|
|
- }
|
|
|
- defer f.Close()
|
|
|
-
|
|
|
- var hdrs []*Header
|
|
|
- tr := NewReader(f)
|
|
|
- for {
|
|
|
- hdr, err := tr.Next()
|
|
|
- if err == io.EOF {
|
|
|
- break
|
|
|
- }
|
|
|
- if err != nil {
|
|
|
- t.Errorf("Next(): got %v, want %v", err, nil)
|
|
|
- continue
|
|
|
- }
|
|
|
- hdrs = append(hdrs, hdr)
|
|
|
-
|
|
|
- // If a special flag, we should read nothing.
|
|
|
- cnt, _ := io.ReadFull(tr, []byte{0})
|
|
|
- if cnt > 0 && hdr.Typeflag != TypeReg {
|
|
|
- t.Errorf("ReadFull(...): got %d bytes, want 0 bytes", cnt)
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- // File is crafted with 16 entries. The later 8 are identical to the first
|
|
|
- // 8 except that the size is set.
|
|
|
- if len(hdrs) != 16 {
|
|
|
- t.Fatalf("len(hdrs): got %d, want %d", len(hdrs), 16)
|
|
|
- }
|
|
|
- for i := 0; i < 8; i++ {
|
|
|
- hdr1, hdr2 := hdrs[i+0], hdrs[i+8]
|
|
|
- hdr1.Size, hdr2.Size = 0, 0
|
|
|
- if !reflect.DeepEqual(*hdr1, *hdr2) {
|
|
|
- t.Errorf("incorrect header:\ngot %+v\nwant %+v", *hdr1, *hdr2)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestMergePAX(t *testing.T) {
|
|
|
- vectors := []struct {
|
|
|
- in map[string]string
|
|
|
- want *Header
|
|
|
- ok bool
|
|
|
- }{{
|
|
|
- in: map[string]string{
|
|
|
- "path": "a/b/c",
|
|
|
- "uid": "1000",
|
|
|
- "mtime": "1350244992.023960108",
|
|
|
- },
|
|
|
- want: &Header{
|
|
|
- Name: "a/b/c",
|
|
|
- Uid: 1000,
|
|
|
- ModTime: time.Unix(1350244992, 23960108),
|
|
|
- },
|
|
|
- ok: true,
|
|
|
- }, {
|
|
|
- in: map[string]string{
|
|
|
- "gid": "gtgergergersagersgers",
|
|
|
- },
|
|
|
- }, {
|
|
|
- in: map[string]string{
|
|
|
- "missing": "missing",
|
|
|
- "SCHILY.xattr.key": "value",
|
|
|
- },
|
|
|
- want: &Header{
|
|
|
- Xattrs: map[string]string{"key": "value"},
|
|
|
- },
|
|
|
- ok: true,
|
|
|
- }}
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- got := new(Header)
|
|
|
- err := mergePAX(got, v.in)
|
|
|
- if v.ok && !reflect.DeepEqual(*got, *v.want) {
|
|
|
- t.Errorf("test %d, mergePAX(...):\ngot %+v\nwant %+v", i, *got, *v.want)
|
|
|
- }
|
|
|
- if ok := err == nil; ok != v.ok {
|
|
|
- t.Errorf("test %d, mergePAX(...): got %v, want %v", i, ok, v.ok)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-func TestParsePAX(t *testing.T) {
|
|
|
- vectors := []struct {
|
|
|
- in string
|
|
|
- want map[string]string
|
|
|
- ok bool
|
|
|
- }{
|
|
|
- {"", nil, true},
|
|
|
- {"6 k=1\n", map[string]string{"k": "1"}, true},
|
|
|
- {"10 a=name\n", map[string]string{"a": "name"}, true},
|
|
|
- {"9 a=name\n", map[string]string{"a": "name"}, true},
|
|
|
- {"30 mtime=1350244992.023960108\n", map[string]string{"mtime": "1350244992.023960108"}, true},
|
|
|
- {"3 somelongkey=\n", nil, false},
|
|
|
- {"50 tooshort=\n", nil, false},
|
|
|
- {"13 key1=haha\n13 key2=nana\n13 key3=kaka\n",
|
|
|
- map[string]string{"key1": "haha", "key2": "nana", "key3": "kaka"}, true},
|
|
|
- {"13 key1=val1\n13 key2=val2\n8 key1=\n",
|
|
|
- map[string]string{"key2": "val2"}, true},
|
|
|
- {"22 GNU.sparse.size=10\n26 GNU.sparse.numblocks=2\n" +
|
|
|
- "23 GNU.sparse.offset=1\n25 GNU.sparse.numbytes=2\n" +
|
|
|
- "23 GNU.sparse.offset=3\n25 GNU.sparse.numbytes=4\n",
|
|
|
- map[string]string{paxGNUSparseSize: "10", paxGNUSparseNumBlocks: "2", paxGNUSparseMap: "1,2,3,4"}, true},
|
|
|
- {"22 GNU.sparse.size=10\n26 GNU.sparse.numblocks=1\n" +
|
|
|
- "25 GNU.sparse.numbytes=2\n23 GNU.sparse.offset=1\n",
|
|
|
- nil, false},
|
|
|
- {"22 GNU.sparse.size=10\n26 GNU.sparse.numblocks=1\n" +
|
|
|
- "25 GNU.sparse.offset=1,2\n25 GNU.sparse.numbytes=2\n",
|
|
|
- nil, false},
|
|
|
- }
|
|
|
-
|
|
|
- for i, v := range vectors {
|
|
|
- r := strings.NewReader(v.in)
|
|
|
- got, err := parsePAX(r)
|
|
|
- if !reflect.DeepEqual(got, v.want) && !(len(got) == 0 && len(v.want) == 0) {
|
|
|
- t.Errorf("test %d, parsePAX(...):\ngot %v\nwant %v", i, got, v.want)
|
|
|
- }
|
|
|
- if ok := err == nil; ok != v.ok {
|
|
|
- t.Errorf("test %d, parsePAX(...): got %v, want %v", i, ok, v.ok)
|
|
|
- }
|
|
|
- }
|
|
|
-}
|