| // 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), |
| }; |
| } |
| } |
