// The following is a hexdump of a zip64 file containing the following files:
// zero4400: 4400 MB of zeroes
// zero100: 100 MB of zeroes
// zero4400_2: 4400 MB of zeroes
//
// 00000000 50 4b 03 04 2d 00 00 00 00 00 1b 6e 51 4d 66 82 |PK..-......nQMf.|
// 00000010 13 da ff ff ff ff ff ff ff ff 08 00 30 00 7a 65 |............0.ze|
// 00000020 72 6f 34 34 30 30 55 54 09 00 03 a5 21 c7 5b db |ro4400UT....!.[.|
// 00000030 21 c7 5b 75 78 0b 00 01 04 e8 03 00 00 04 e8 03 |!.[ux...........|
// 00000040 00 00 01 00 10 00 00 00 00 13 01 00 00 00 00 00 |................|
// 00000050 00 13 01 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
// 00000060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
// *
// 113000050 00 00 00 00 00 00 50 4b 03 04 0a 00 00 00 00 00 |......PK........|
// 113000060 2b 6e 51 4d 98 23 28 4b 00 00 40 06 00 00 40 06 |+nQM.#(K..@...@.|
// 113000070 07 00 1c 00 7a 65 72 6f 31 30 30 55 54 09 00 03 |....zero100UT...|
// 113000080 c2 21 c7 5b c2 21 c7 5b 75 78 0b 00 01 04 e8 03 |.!.[.!.[ux......|
// 113000090 00 00 04 e8 03 00 00 00 00 00 00 00 00 00 00 00 |................|
// 1130000a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
// *
// 119400090 00 00 00 00 00 00 00 50 4b 03 04 2d 00 00 00 00 |.......PK..-....|
// 1194000a0 00 3b 6e 51 4d 66 82 13 da ff ff ff ff ff ff ff |.;nQMf..........|
// 1194000b0 ff 0a 00 30 00 7a 65 72 6f 34 34 30 30 5f 32 55 |...0.zero4400_2U|
// 1194000c0 54 09 00 03 e2 21 c7 5b db 21 c7 5b 75 78 0b 00 |T....!.[.!.[ux..|
// 1194000d0 01 04 e8 03 00 00 04 e8 03 00 00 01 00 10 00 00 |................|
// 1194000e0 00 00 13 01 00 00 00 00 00 00 13 01 00 00 00 00 |................|
// 1194000f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
// *
// 22c4000e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 |...............P|
// 22c4000f0 4b 01 02 1e 03 2d 00 00 00 00 00 1b 6e 51 4d 66 |K....-......nQMf|
// 22c400100 82 13 da ff ff ff ff ff ff ff ff 08 00 2c 00 00 |.............,..|
// 22c400110 00 00 00 00 00 00 00 a4 81 00 00 00 00 7a 65 72 |.............zer|
// 22c400120 6f 34 34 30 30 55 54 05 00 03 a5 21 c7 5b 75 78 |o4400UT....!.[ux|
// 22c400130 0b 00 01 04 e8 03 00 00 04 e8 03 00 00 01 00 10 |................|
// 22c400140 00 00 00 00 13 01 00 00 00 00 00 00 13 01 00 00 |................|
// 22c400150 00 50 4b 01 02 1e 03 0a 00 00 00 00 00 2b 6e 51 |.PK..........+nQ|
// 22c400160 4d 98 23 28 4b 00 00 40 06 00 00 40 06 07 00 24 |M.#(K..@...@...$|
// 22c400170 00 00 00 00 00 00 00 00 00 a4 81 ff ff ff ff 7a |...............z|
// 22c400180 65 72 6f 31 30 30 55 54 05 00 03 c2 21 c7 5b 75 |ero100UT....!.[u|
// 22c400190 78 0b 00 01 04 e8 03 00 00 04 e8 03 00 00 01 00 |x...............|
// 22c4001a0 08 00 56 00 00 13 01 00 00 00 50 4b 01 02 1e 03 |..V.......PK....|
// 22c4001b0 2d 00 00 00 00 00 3b 6e 51 4d 66 82 13 da ff ff |-.....;nQMf.....|
// 22c4001c0 ff ff ff ff ff ff 0a 00 34 00 00 00 00 00 00 00 |........4.......|
// 22c4001d0 00 00 a4 81 ff ff ff ff 7a 65 72 6f 34 34 30 30 |........zero4400|
// 22c4001e0 5f 32 55 54 05 00 03 e2 21 c7 5b 75 78 0b 00 01 |_2UT....!.[ux...|
// 22c4001f0 04 e8 03 00 00 04 e8 03 00 00 01 00 18 00 00 00 |................|
// 22c400200 00 13 01 00 00 00 00 00 00 13 01 00 00 00 97 00 |................|
// 22c400210 40 19 01 00 00 00 50 4b 06 06 2c 00 00 00 00 00 |@.....PK..,.....|
// 22c400220 00 00 1e 03 2d 00 00 00 00 00 00 00 00 00 03 00 |....-...........|
// 22c400230 00 00 00 00 00 00 03 00 00 00 00 00 00 00 27 01 |..............'.|
// 22c400240 00 00 00 00 00 00 ef 00 40 2c 02 00 00 00 50 4b |........@,....PK|
// 22c400250 06 07 00 00 00 00 16 02 40 2c 02 00 00 00 01 00 |........@,......|
// 22c400260 00 00 50 4b 05 06 00 00 00 00 03 00 03 00 27 01 |..PK..........'.|
// 22c400270 00 00 ff ff ff ff 00 00 |........|
// 22c400278
use std::io::{self, Read, Seek, SeekFrom};
const BLOCK1_LENGTH: u64 = 0x60;
const BLOCK1: [u8; BLOCK1_LENGTH as usize] = [
0x50, 0x4b, 0x03, 0x04, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1b, 0x6e, 0x51, 0x4d, 0x66, 0x82,
0x13, 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x08, 0x00, 0x30, 0x00, 0x7a, 0x65,
0x72, 0x6f, 0x34, 0x34, 0x30, 0x30, 0x55, 0x54, 0x09, 0x00, 0x03, 0xa5, 0x21, 0xc7, 0x5b, 0xdb,
0x21, 0xc7, 0x5b, 0x75, 0x78, 0x0b, 0x00, 0x01, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x04, 0xe8, 0x03,
0x00, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
];
const BLOCK2_LENGTH: u64 = 0x50;
const BLOCK2: [u8; BLOCK2_LENGTH as usize] = [
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x4b, 0x03, 0x04, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,
0x2b, 0x6e, 0x51, 0x4d, 0x98, 0x23, 0x28, 0x4b, 0x00, 0x00, 0x40, 0x06, 0x00, 0x00, 0x40, 0x06,
0x07, 0x00, 0x1c, 0x00, 0x7a, 0x65, 0x72, 0x6f, 0x31, 0x30, 0x30, 0x55, 0x54, 0x09, 0x00, 0x03,
0xc2, 0x21, 0xc7, 0x5b, 0xc2, 0x21, 0xc7, 0x5b, 0x75, 0x78, 0x0b, 0x00, 0x01, 0x04, 0xe8, 0x03,
0x00, 0x00, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
];
const BLOCK3_LENGTH: u64 = 0x60;
const BLOCK3: [u8; BLOCK3_LENGTH as usize] = [
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x4b, 0x03, 0x04, 0x2d, 0x00, 0x00, 0x00, 0x00,
0x00, 0x3b, 0x6e, 0x51, 0x4d, 0x66, 0x82, 0x13, 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0x0a, 0x00, 0x30, 0x00, 0x7a, 0x65, 0x72, 0x6f, 0x34, 0x34, 0x30, 0x30, 0x5f, 0x32, 0x55,
0x54, 0x09, 0x00, 0x03, 0xe2, 0x21, 0xc7, 0x5b, 0xdb, 0x21, 0xc7, 0x5b, 0x75, 0x78, 0x0b, 0x00,
0x01, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00,
];
const BLOCK4_LENGTH: u64 = 0x198;
const BLOCK4: [u8; BLOCK4_LENGTH as usize] = [
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50,
0x4b, 0x01, 0x02, 0x1e, 0x03, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1b, 0x6e, 0x51, 0x4d, 0x66,
0x82, 0x13, 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x08, 0x00, 0x2c, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa4, 0x81, 0x00, 0x00, 0x00, 0x00, 0x7a, 0x65, 0x72,
0x6f, 0x34, 0x34, 0x30, 0x30, 0x55, 0x54, 0x05, 0x00, 0x03, 0xa5, 0x21, 0xc7, 0x5b, 0x75, 0x78,
0x0b, 0x00, 0x01, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x01, 0x00, 0x10,
0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00,
0x00, 0x50, 0x4b, 0x01, 0x02, 0x1e, 0x03, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b, 0x6e, 0x51,
0x4d, 0x98, 0x23, 0x28, 0x4b, 0x00, 0x00, 0x40, 0x06, 0x00, 0x00, 0x40, 0x06, 0x07, 0x00, 0x24,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa4, 0x81, 0xff, 0xff, 0xff, 0xff, 0x7a,
0x65, 0x72, 0x6f, 0x31, 0x30, 0x30, 0x55, 0x54, 0x05, 0x00, 0x03, 0xc2, 0x21, 0xc7, 0x5b, 0x75,
0x78, 0x0b, 0x00, 0x01, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x01, 0x00,
0x08, 0x00, 0x56, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x50, 0x4b, 0x01, 0x02, 0x1e, 0x03,
0x2d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3b, 0x6e, 0x51, 0x4d, 0x66, 0x82, 0x13, 0xda, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0a, 0x00, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xa4, 0x81, 0xff, 0xff, 0xff, 0xff, 0x7a, 0x65, 0x72, 0x6f, 0x34, 0x34, 0x30, 0x30,
0x5f, 0x32, 0x55, 0x54, 0x05, 0x00, 0x03, 0xe2, 0x21, 0xc7, 0x5b, 0x75, 0x78, 0x0b, 0x00, 0x01,
0x04, 0xe8, 0x03, 0x00, 0x00, 0x04, 0xe8, 0x03, 0x00, 0x00, 0x01, 0x00, 0x18, 0x00, 0x00, 0x00,
0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x97, 0x00,
0x40, 0x19, 0x01, 0x00, 0x00, 0x00, 0x50, 0x4b, 0x06, 0x06, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x1e, 0x03, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x27, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xef, 0x00, 0x40, 0x2c, 0x02, 0x00, 0x00, 0x00, 0x50, 0x4b,
0x06, 0x07, 0x00, 0x00, 0x00, 0x00, 0x16, 0x02, 0x40, 0x2c, 0x02, 0x00, 0x00, 0x00, 0x01, 0x00,
0x00, 0x00, 0x50, 0x4b, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x03, 0x00, 0x27, 0x01,
0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
];
const BLOCK1_START: u64 = 0x000000000;
const BLOCK2_START: u64 = 0x113000050;
const BLOCK3_START: u64 = 0x119400090;
const BLOCK4_START: u64 = 0x22c4000e0;
const BLOCK1_END: u64 = BLOCK1_START + BLOCK1_LENGTH - 1;
const BLOCK2_END: u64 = BLOCK2_START + BLOCK2_LENGTH - 1;
const BLOCK3_END: u64 = BLOCK3_START + BLOCK3_LENGTH - 1;
const BLOCK4_END: u64 = BLOCK4_START + BLOCK4_LENGTH - 1;
const TOTAL_LENGTH: u64 = BLOCK4_START + BLOCK4_LENGTH;
struct Zip64File {
pointer: u64,
}
impl Zip64File {
fn new() -> Self {
Zip64File { pointer: 0 }
}
}
impl Seek for Zip64File {
fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
match pos {
SeekFrom::Start(offset) => {
self.pointer = offset;
}
SeekFrom::End(offset) => {
if offset > 0 || offset < -(TOTAL_LENGTH as i64) {
return Err(io::Error::new(io::ErrorKind::Other, "Invalid seek offset"));
}
self.pointer = (TOTAL_LENGTH as i64 + offset) as u64;
}
SeekFrom::Current(offset) => {
let seekpos = self.pointer as i64 + offset;
if seekpos < 0 || seekpos as u64 > TOTAL_LENGTH {
return Err(io::Error::new(io::ErrorKind::Other, "Invalid seek offset"));
}
self.pointer = seekpos as u64;
}
}
Ok(self.pointer)
}
}
impl Read for Zip64File {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
if self.pointer >= TOTAL_LENGTH {
return Ok(0);
}
match self.pointer {
BLOCK1_START..=BLOCK1_END => {
buf[0] = BLOCK1[(self.pointer - BLOCK1_START) as usize];
}
BLOCK2_START..=BLOCK2_END => {
buf[0] = BLOCK2[(self.pointer - BLOCK2_START) as usize];
}
BLOCK3_START..=BLOCK3_END => {
buf[0] = BLOCK3[(self.pointer - BLOCK3_START) as usize];
}
BLOCK4_START..=BLOCK4_END => {
buf[0] = BLOCK4[(self.pointer - BLOCK4_START) as usize];
}
_ => {
buf[0] = 0;
}
}
self.pointer += 1;
Ok(1)
}
}
#[test]
fn zip64_large() {
let zipfile = Zip64File::new();
let mut archive = zip::ZipArchive::new(zipfile).unwrap();
let mut buf = [0u8; 32];
for i in 0..archive.len() {
let mut file = archive.by_index(i).unwrap();
let outpath = file.enclosed_name().unwrap();
println!(
"Entry {} has name \"{}\" ({} bytes)",
i,
outpath.display(),
file.size()
);
match file.read_exact(&mut buf) {
Ok(()) => println!("The first {} bytes are: {:?}", buf.len(), buf),
Err(e) => println!("Could not read the file: {e:?}"),
};
}
}