Created
October 19, 2020 18:48
-
-
Save kriskowal/f25c81725f0d5c98d41c1e6b7ee8f8fe to your computer and use it in GitHub Desktop.
Debugging a zip library refactor. The bug was a uint32 where a uint16 belonged.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 00000000: 504b 0304 0a00 0000 0000 3514 5151 849e PK........5.QQ.. | |
| ^^^^ ^^^^ LOCAL_FILE_HEADER | |
| ^^^^ version 10 | |
| ^^^^ bitFlag | |
| ^^^^ compression method | |
| ^^^^ ^^^^ date | |
| 00000010: e8b4 0e00 0000 0e00 0000 0900 0000 6865 ..............he | |
| ^^^^ crc32 | |
| ^^^^ ^^^^ compressed size (14) | |
| ^^^^ ^^^^ uncompressed size (14) | |
| ^^^^ file name length (hello.txt) 9 | |
| ^^^^ extra fields length | |
| ^^^^ | |
| 00000020: 6c6c 6f2e 7478 7448 656c 6c6f 2c20 576f llo.txtHello, Wo | |
| ^^^^ ^^^^ ^^^^ ^^ file name | |
| ^^ ^^^^ ^^^^ ^^^^ ^^^^ | |
| 00000030: 726c 6421 0a50 4b01 021e 030a 0000 0000 rld!.PK......... | |
| ^^^^ ^^^^ ^^ file content (14) | |
| ^^ ^^^^ ^^ CENTRAL_FILE_HEADER | |
| ^^ file version (30) | |
| ^^ file made by (3) | |
| >> headers | |
| ^^ ^^ version 10 | |
| ^^ ^^ bitFlag | |
| ^^ | |
| 00000040: 0035 1451 5184 9ee8 b40e 0000 000e 0000 .5.QQ........... | |
| ^^ compression method | |
| ^^ ^^^^ ^^ date | |
| ^^ ^^^^ ^^ crc32 | |
| ^^ ^^^^ ^^ compressed size (14) | |
| ^^ ^^^^ | |
| 00000050: 0009 0000 0000 0000 0000 0000 0000 0000 ................ | |
| ^^ uncompressed size (14) | |
| ^^ ^^ file name length (hello.txt) 9 | |
| ^^ ^^ extra fields length (0) | |
| << headers | |
| ^^ ^^ file comment length (0) | |
| ^^ ^^ disk number start (0) | |
| ^^ ^^ internal file attributes (0) | |
| ^^ ^^ external file attributes (0) | |
| ^^ ^^^^ | |
| 00000060: 0068 656c 6c6f 2e74 7874 504b 0506 0000 .hello.txtPK.... | |
| ^^ offset of local header (0) | |
| ^^ ^^^^ ^^^^ ^^^^ ^^^^ file name (hello.txt) | |
| ^^^^ ^^^^ CENTRAL_DIRECTORY_END | |
| ^^^^ number of this disk | |
| 00000070: 0000 0100 0100 3500 0000 3500 0000 0000 ......5...5..... | |
| ^^^^ number of the disk with this central dir | |
| ^^^^ number of entries on this disk | |
| ^^^^ total number of entries | |
| ^^^^ ^^^^ length of central directory (53) | |
| ^^^^ ^^^^ central directory start (0x35) | |
| ^^^^ comment length | |
| comment | |
| // INVALID | |
| ============================================================ | |
| // VALID | |
| 00000000: 504b 0304 0a00 0000 0000 519b 5051 849e PK........Q.PQ.. | |
| ^^^^ ^^^^ LOCAL_FILE_HEADER | |
| ^^^^ version 10 | |
| ^^^^ bitFlag | |
| ^^^^ compression method (STORE) | |
| ^^^^ ^^^^ date | |
| ^^^^... | |
| 00000010: e8b4 0e00 0000 0e00 0000 0900 1c00 6865 ..............he | |
| ^^^^ crc32 | |
| ^^^^ ^^^^ compressed size (14) | |
| ^^^^ ^^^^ uncompressed size (14) | |
| ^^^^ file name length (hello.txt) 9 | |
| ^^^^ extra fields length (28) | |
| ^^^^ | |
| 00000020: 6c6c 6f2e 7478 7455 5409 0003 5956 8a5f llo.txtUT...YV._ | |
| ^^^^ ^^^^ ^^^^ ^^ file name | |
| ^^ ^^^^ ^^^^ ^^^^ ^^^^ | |
| 00000030: 5b56 8a5f 7578 0b00 0104 f501 0000 0414 [V._ux.......... | |
| ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ | |
| 00000040: 0000 0048 656c 6c6f 2c20 576f 726c 6421 ...Hello, World! | |
| ^^^^ ^^ extra fields | |
| ^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ | |
| 00000050: 0a50 4b01 021e 030a 0000 0000 0051 9b50 .PK..........Q.P | |
| ^^ file content (14) | |
| ^^ ^^^^ ^^ CENTRAL_FILE_HEADER | |
| ^^ file version (30) | |
| ^^ file made by (3) | |
| >> headers | |
| ^^ ^^ version 10 | |
| ^^ ^^ bitFlag | |
| ^^ ^^ compression method | |
| ^^ ^^^^ | |
| 00000060: 5184 9ee8 b40e 0000 000e 0000 0009 0018 Q............... | |
| ^^ date | |
| ^^ ^^^^ ^^ crc32 | |
| ^^ ^^^^ ^^ compressed size | |
| ^^ ^^^^ ^^ uncompressed size | |
| ^^ ^^ file name length (9) | |
| << headers | |
| ^^ | |
| 00000070: 0000 0000 0001 0000 00a4 8100 0000 0068 ...............h | |
| ^^^^ ^^ extra fields length (0x18 24) | |
| ^^ ^^ file comment length | |
| ^^ ^^ disk number start (1) | |
| ^^ ^^ internal file attribute (0) | |
| ^^ ^^ external file attribute (0xa481 0o122201???) | |
| ^^ ^^^^ ^^ offset of local header (0) | |
| ^^ | |
| 00000080: 656c 6c6f 2e74 7874 5554 0500 0359 568a ello.txtUT...YV. | |
| ^^^^ ^^^^ ^^^^ ^^^^ file name | |
| ^^^^ ^^^^ ^^^^ ^^^^ | |
| 00000090: 5f75 780b 0001 04f5 0100 0004 1400 0000 _ux............. | |
| ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ extra fields (24) | |
| 000000a0: 504b 0506 0000 0000 0100 0100 4f00 0000 PK..........O... | |
| ^^^^ ^^^^ CENTRAL_DIRECTORY_END | |
| ^^^^ number of this disk (0) | |
| ^^^^ number of the disk with this central dir | |
| ^^^^ number of entires on the central dir on this disk (1) | |
| ^^^^ total number of entries in the central (1) | |
| ^^^^ ^^^^ central directory length (79) | |
| 000000b0: 5100 0000 0000 Q..... | |
| ^^^^ ^^^^ central directory start (0x51) | |
| ^^^^ comment length (0) | |
| comment | |
| 00000000: 504b 0304 0a03 0000 0000 9c74 f13a e3e5 PK.........t.:.. | |
| ^^^^ LOCAL_FILE_HEADER | |
| 00000010: 95b0 0c00 0000 0c00 0000 0900 0000 4865 ..............He | |
| ^^- fileName | |
| 00000020: 6c6c 6f2e 7478 7448 656c 6c6f 2057 6f72 llo.txtHello Wor | |
| -^^ ^^- compressedBytes | |
| 00000030: 6c64 0a50 4b01 0214 030a 0300 0000 009c ld.PK........... | |
| >> start of central directory | |
| ^^ ^^^^ ^^ CENTRAL_FILE_HEADER | |
| 00000040: 74f1 3ae3 e595 b00c 0000 000c 0000 0009 t.:............. | |
| 00000050: 0000 0000 0000 0000 0020 80a4 8100 0000 ......... ...... | |
| 00000060: 0048 656c 6c6f 2e74 7874 504b 0506 0000 .Hello.txtPK.... | |
| << end of central directory | |
| ^^^^ CENTRAL_DIRECTORY_END | |
| ^^^^ number of this disk | |
| 00000070: 0000 0100 0100 3700 0000 3300 0000 0000 ......7...3..... | |
| ^^^^ number of the disk with the start of the central dir | |
| ^^^^ number of entries in the central directory on this disk | |
| ^^^^ total number of entries in the central directory | |
| ^^^^ ^^^^ size of the central directory | |
| ^^^^ ^^^^ start of the central directory on the starting disk | |
| ^^^^ comment length | |
| 00000000: 504b 0304 0a03 0000 0000 9c6c f13a e3e5 PK.........l.:.. | |
| ^^^^ LOCAL_FILE_HEADER | |
| 00000010: 95b0 0c00 0000 0c00 0000 0900 0000 4865 ..............He | |
| 00000020: 6c6c 6f2e 7478 7448 656c 6c6f 2057 6f72 llo.txtHello Wor | |
| 00000030: 6c64 0a50 4b03 040a 0300 0000 00b1 6cf1 ld.PK.........l. | |
| ^^ ^^ LOCAL_FILE_HEADAER | |
| 00000040: 3a00 0000 0000 0000 0000 0000 0007 0000 :............... | |
| 00000050: 0069 6d61 6765 732f 504b 0304 0a03 0000 .images/PK...... | |
| ^^^^ LOCAL_FILE_HEADER | |
| 00000060: 0000 1567 ea3a 3c3f eb8a 2900 0000 2900 ...g.:<?..)...). | |
| 00000070: 0000 1000 0000 696d 6167 6573 2f73 6d69 ......images/smi | |
| 00000080: 6c65 2e67 6966 4749 4638 3761 0500 0500 le.gifGIF87a.... | |
| 00000090: 8002 0000 0000 ffde 002c 0000 0000 0500 .........,...... | |
| 000000a0: 0500 0002 088c 0f91 67ab 0a52 0100 3b50 ........g..R..;P | |
| 000000b0: 4b01 0214 030a 0300 0000 009c 6cf1 3ae3 K...........l.:. | |
| ^^ ^^ CENTRAL_FILE_HEADER | |
| 000000c0: e595 b00c 0000 000c 0000 0009 0000 0000 ................ | |
| 000000d0: 0000 0000 0020 80a4 8100 0000 0048 656c ..... .......Hel | |
| 000000e0: 6c6f 2e74 7874 504b 0102 1403 0a03 0000 lo.txtPK........ | |
| ^^^^ CENTRAL_FILE_HEADER | |
| 000000f0: 0000 b16c f13a 0000 0000 0000 0000 0000 ...l.:.......... | |
| 00000100: 0000 0700 0000 0000 0000 0000 1080 ed41 ...............A | |
| 00000110: 3300 0000 696d 6167 6573 2f50 4b01 0214 3...images/PK... | |
| ^^ ^^ CENTRAL_FILE_HEADER | |
| 00000120: 030a 0300 0000 0015 67ea 3a3c 3feb 8a29 ........g.:<?..) | |
| 00000130: 0000 0029 0000 0010 0000 0000 0000 0000 ...)............ | |
| 00000140: 0020 80a4 8158 0000 0069 6d61 6765 732f . ...X...images/ | |
| 00000150: 736d 696c 652e 6769 6650 4b05 0600 0000 smile.gifPK..... | |
| ^^ ^^ CENTRAL_DIRECTORY_END | |
| 00000160: 0003 0003 00aa 0000 00af 0000 0000 00 ............... | |
| 00000000: 504b 0304 0a00 0800 0000 7683 2142 0000 PK........v.!B.. | |
| ^^^^ LOCAL_FILE_HEADER | |
| 00000010: 0000 0c00 0000 0c00 0000 0900 1c00 4865 ..............He | |
| 00000020: 6c6c 6f2e 7478 7455 5409 0003 6f00 e350 llo.txtUT...o..P | |
| 00000030: 6f00 e350 7578 0b00 0104 e803 0000 04e8 o..Pux.......... | |
| 00000040: 0300 0048 656c 6c6f 2057 6f72 6c64 0a50 ...Hello World.P | |
| 00000050: 4b07 08e3 e595 b00c 0000 000c 0000 0050 K..............P | |
| ^^ ^^ DATA_DESCRIPTOR | |
| 00000060: 4b01 021e 030a 0008 0000 0076 8321 42e3 K..........v.!B. | |
| ^^ ^^ CENTRAL_FILE_HEADER | |
| 00000070: e595 b00c 0000 000c 0000 0009 0018 0000 ................ | |
| 00000080: 0000 0000 0000 00a4 8100 0000 0048 656c .............Hel | |
| 00000090: 6c6f 2e74 7874 5554 0500 036f 00e3 5075 lo.txtUT...o..Pu | |
| 000000a0: 780b 0001 04e8 0300 0004 e803 0000 504b x.............PK | |
| 000000b0: 0506 0000 0000 0100 0100 4f00 0000 5f00 ..........O..._. | |
| ^^^^ CENTRAL_DIRECTORY_END | |
| 000000c0: 0000 0000 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment