Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Mini unzip implementation for busybox |
| 4 | * |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 5 | * Copyright (C) 2004 by Ed Clark |
| 6 | * |
| 7 | * Loosely based on original busybox unzip applet by Laurence Anderson. |
| 8 | * All options and features should work in this version. |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 9 | * |
Denys Vlasenko | 0ef64bd | 2010-08-16 20:14:46 +0200 | [diff] [blame] | 10 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 11 | */ |
Glenn L McGrath | f34b0e9 | 2004-06-06 10:22:43 +0000 | [diff] [blame] | 12 | /* For reference see |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 13 | * http://www.pkware.com/company/standards/appnote/ |
Glenn L McGrath | f34b0e9 | 2004-06-06 10:22:43 +0000 | [diff] [blame] | 14 | * http://www.info-zip.org/pub/infozip/doc/appnote-iz-latest.zip |
Denys Vlasenko | 66620fa | 2013-11-14 09:53:52 +0100 | [diff] [blame] | 15 | * |
| 16 | * TODO |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 17 | * Zip64 + other methods |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 18 | */ |
Denys Vlasenko | f6beef6 | 2013-11-14 11:39:00 +0100 | [diff] [blame] | 19 | //config:config UNZIP |
Denys Vlasenko | b097a84 | 2018-12-28 03:20:17 +0100 | [diff] [blame] | 20 | //config: bool "unzip (26 kb)" |
Denys Vlasenko | f6beef6 | 2013-11-14 11:39:00 +0100 | [diff] [blame] | 21 | //config: default y |
| 22 | //config: help |
Denys Vlasenko | 72089cf | 2017-07-21 09:50:55 +0200 | [diff] [blame] | 23 | //config: unzip will list or extract files from a ZIP archive, |
| 24 | //config: commonly found on DOS/WIN systems. The default behavior |
| 25 | //config: (with no options) is to extract the archive into the |
| 26 | //config: current directory. |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 27 | //config: |
| 28 | //config:config FEATURE_UNZIP_CDF |
| 29 | //config: bool "Read and use Central Directory data" |
| 30 | //config: default y |
| 31 | //config: depends on UNZIP |
| 32 | //config: help |
Denys Vlasenko | 72089cf | 2017-07-21 09:50:55 +0200 | [diff] [blame] | 33 | //config: If you know that you only need to deal with simple |
| 34 | //config: ZIP files without deleted/updated files, SFX archives etc, |
| 35 | //config: you can reduce code size by unselecting this option. |
| 36 | //config: To support less trivial ZIPs, say Y. |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 37 | //config: |
| 38 | //config:config FEATURE_UNZIP_BZIP2 |
| 39 | //config: bool "Support compression method 12 (bzip2)" |
| 40 | //config: default y |
| 41 | //config: depends on FEATURE_UNZIP_CDF && DESKTOP |
| 42 | // FEATURE_UNZIP_CDF is needed, otherwise we can't find start of next file |
| 43 | // DESKTOP is needed to get back uncompressed length |
| 44 | //config: |
| 45 | //config:config FEATURE_UNZIP_LZMA |
| 46 | //config: bool "Support compression method 14 (lzma)" |
| 47 | //config: default y |
| 48 | //config: depends on FEATURE_UNZIP_CDF && DESKTOP |
Denys Vlasenko | 6b4f4b5 | 2017-01-09 11:12:01 +0100 | [diff] [blame] | 49 | //config: |
| 50 | //config:config FEATURE_UNZIP_XZ |
| 51 | //config: bool "Support compression method 95 (xz)" |
| 52 | //config: default y |
| 53 | //config: depends on FEATURE_UNZIP_CDF && DESKTOP |
Denys Vlasenko | f6beef6 | 2013-11-14 11:39:00 +0100 | [diff] [blame] | 54 | |
Denys Vlasenko | ac21687 | 2013-11-14 11:38:18 +0100 | [diff] [blame] | 55 | //applet:IF_UNZIP(APPLET(unzip, BB_DIR_USR_BIN, BB_SUID_DROP)) |
Denys Vlasenko | 66620fa | 2013-11-14 09:53:52 +0100 | [diff] [blame] | 56 | //kbuild:lib-$(CONFIG_UNZIP) += unzip.o |
| 57 | |
Pere Orga | 1f4447b | 2011-03-27 22:40:30 +0200 | [diff] [blame] | 58 | //usage:#define unzip_trivial_usage |
Denys Vlasenko | 1f60d88 | 2021-06-15 10:00:18 +0200 | [diff] [blame] | 59 | //usage: "[-lnojpq] FILE[.zip] [FILE]... [-x FILE]... [-d DIR]" |
Pere Orga | 1f4447b | 2011-03-27 22:40:30 +0200 | [diff] [blame] | 60 | //usage:#define unzip_full_usage "\n\n" |
Denys Vlasenko | e3e0d2b | 2012-06-19 12:46:59 +0200 | [diff] [blame] | 61 | //usage: "Extract FILEs from ZIP archive\n" |
| 62 | //usage: "\n -l List contents (with -q for short form)" |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 63 | //usage: "\n -n Never overwrite files (default: ask)" |
Pere Orga | 1f4447b | 2011-03-27 22:40:30 +0200 | [diff] [blame] | 64 | //usage: "\n -o Overwrite" |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 65 | //usage: "\n -j Do not restore paths" |
Denys Vlasenko | 6b6826f | 2021-06-13 01:08:48 +0200 | [diff] [blame] | 66 | //usage: "\n -p Write to stdout" |
Denys Vlasenko | cca4c9f | 2021-04-14 21:34:00 +0200 | [diff] [blame] | 67 | //usage: "\n -t Test" |
Pere Orga | 1f4447b | 2011-03-27 22:40:30 +0200 | [diff] [blame] | 68 | //usage: "\n -q Quiet" |
Denys Vlasenko | e3e0d2b | 2012-06-19 12:46:59 +0200 | [diff] [blame] | 69 | //usage: "\n -x FILE Exclude FILEs" |
| 70 | //usage: "\n -d DIR Extract into DIR" |
Pere Orga | 1f4447b | 2011-03-27 22:40:30 +0200 | [diff] [blame] | 71 | |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 72 | #include "libbb.h" |
Denys Vlasenko | d184a72 | 2011-09-22 12:45:14 +0200 | [diff] [blame] | 73 | #include "bb_archive.h" |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 74 | |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 75 | #if 0 |
| 76 | # define dbg(...) bb_error_msg(__VA_ARGS__) |
| 77 | #else |
| 78 | # define dbg(...) ((void)0) |
| 79 | #endif |
| 80 | |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 81 | enum { |
| 82 | #if BB_BIG_ENDIAN |
| 83 | ZIP_FILEHEADER_MAGIC = 0x504b0304, |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 84 | ZIP_CDF_MAGIC = 0x504b0102, /* CDF item */ |
| 85 | ZIP_CDE_MAGIC = 0x504b0506, /* End of CDF */ |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 86 | ZIP64_CDE_MAGIC = 0x504b0606, /* End of Zip64 CDF */ |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 87 | ZIP_DD_MAGIC = 0x504b0708, |
| 88 | #else |
| 89 | ZIP_FILEHEADER_MAGIC = 0x04034b50, |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 90 | ZIP_CDF_MAGIC = 0x02014b50, |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 91 | ZIP_CDE_MAGIC = 0x06054b50, |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 92 | ZIP64_CDE_MAGIC = 0x06064b50, |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 93 | ZIP_DD_MAGIC = 0x08074b50, |
| 94 | #endif |
| 95 | }; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 96 | |
Paul Fox | cb98163 | 2007-11-05 23:09:03 +0000 | [diff] [blame] | 97 | #define ZIP_HEADER_LEN 26 |
| 98 | |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 99 | typedef union { |
Paul Fox | cb98163 | 2007-11-05 23:09:03 +0000 | [diff] [blame] | 100 | uint8_t raw[ZIP_HEADER_LEN]; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 101 | struct { |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 102 | uint16_t version; /* 0-1 */ |
Denys Vlasenko | e98884b | 2010-05-24 04:46:18 +0200 | [diff] [blame] | 103 | uint16_t zip_flags; /* 2-3 */ |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 104 | uint16_t method; /* 4-5 */ |
| 105 | uint16_t modtime; /* 6-7 */ |
| 106 | uint16_t moddate; /* 8-9 */ |
| 107 | uint32_t crc32 PACKED; /* 10-13 */ |
| 108 | uint32_t cmpsize PACKED; /* 14-17 */ |
| 109 | uint32_t ucmpsize PACKED; /* 18-21 */ |
| 110 | uint16_t filename_len; /* 22-23 */ |
| 111 | uint16_t extra_len; /* 24-25 */ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 112 | /* filename follows (not NUL terminated) */ |
| 113 | /* extra field follows */ |
| 114 | /* data follows */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 115 | } fmt PACKED; |
Denis Vlasenko | a60f84e | 2008-07-05 09:18:54 +0000 | [diff] [blame] | 116 | } zip_header_t; /* PACKED - gcc 4.2.1 doesn't like it (spews warning) */ |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 117 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 118 | #define FIX_ENDIANNESS_ZIP(zip) \ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 119 | do { if (BB_BIG_ENDIAN) { \ |
Natanael Copa | 46f3f16 | 2017-07-25 20:44:50 +0200 | [diff] [blame] | 120 | (zip).fmt.method = SWAP_LE16((zip).fmt.method ); \ |
Peter Kaestle | 7ade421 | 2022-10-25 13:56:48 +0200 | [diff] [blame^] | 121 | (zip).fmt.modtime = SWAP_LE16((zip).fmt.modtime ); \ |
| 122 | (zip).fmt.moddate = SWAP_LE16((zip).fmt.moddate ); \ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 123 | (zip).fmt.crc32 = SWAP_LE32((zip).fmt.crc32 ); \ |
| 124 | (zip).fmt.cmpsize = SWAP_LE32((zip).fmt.cmpsize ); \ |
| 125 | (zip).fmt.ucmpsize = SWAP_LE32((zip).fmt.ucmpsize ); \ |
| 126 | (zip).fmt.filename_len = SWAP_LE16((zip).fmt.filename_len); \ |
| 127 | (zip).fmt.extra_len = SWAP_LE16((zip).fmt.extra_len ); \ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 128 | }} while (0) |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 129 | |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 130 | #define CDF_HEADER_LEN 42 |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 131 | |
| 132 | typedef union { |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 133 | uint8_t raw[CDF_HEADER_LEN]; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 134 | struct { |
| 135 | /* uint32_t signature; 50 4b 01 02 */ |
| 136 | uint16_t version_made_by; /* 0-1 */ |
| 137 | uint16_t version_needed; /* 2-3 */ |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 138 | uint16_t cdf_flags; /* 4-5 */ |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 139 | uint16_t method; /* 6-7 */ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 140 | uint16_t modtime; /* 8-9 */ |
| 141 | uint16_t moddate; /* 10-11 */ |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 142 | uint32_t crc32; /* 12-15 */ |
| 143 | uint32_t cmpsize; /* 16-19 */ |
| 144 | uint32_t ucmpsize; /* 20-23 */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 145 | uint16_t filename_len; /* 24-25 */ |
| 146 | uint16_t extra_len; /* 26-27 */ |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 147 | uint16_t file_comment_length; /* 28-29 */ |
| 148 | uint16_t disk_number_start; /* 30-31 */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 149 | uint16_t internal_attributes; /* 32-33 */ |
| 150 | uint32_t external_attributes PACKED; /* 34-37 */ |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 151 | uint32_t relative_offset_of_local_header PACKED; /* 38-41 */ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 152 | /* filename follows (not NUL terminated) */ |
| 153 | /* extra field follows */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 154 | /* file comment follows */ |
| 155 | } fmt PACKED; |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 156 | } cdf_header_t; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 157 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 158 | #define FIX_ENDIANNESS_CDF(cdf) \ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 159 | do { if (BB_BIG_ENDIAN) { \ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 160 | (cdf).fmt.version_made_by = SWAP_LE16((cdf).fmt.version_made_by); \ |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 161 | (cdf).fmt.version_needed = SWAP_LE16((cdf).fmt.version_needed ); \ |
| 162 | (cdf).fmt.method = SWAP_LE16((cdf).fmt.method ); \ |
| 163 | (cdf).fmt.modtime = SWAP_LE16((cdf).fmt.modtime ); \ |
| 164 | (cdf).fmt.moddate = SWAP_LE16((cdf).fmt.moddate ); \ |
| 165 | (cdf).fmt.crc32 = SWAP_LE32((cdf).fmt.crc32 ); \ |
| 166 | (cdf).fmt.cmpsize = SWAP_LE32((cdf).fmt.cmpsize ); \ |
| 167 | (cdf).fmt.ucmpsize = SWAP_LE32((cdf).fmt.ucmpsize ); \ |
| 168 | (cdf).fmt.filename_len = SWAP_LE16((cdf).fmt.filename_len ); \ |
| 169 | (cdf).fmt.extra_len = SWAP_LE16((cdf).fmt.extra_len ); \ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 170 | (cdf).fmt.file_comment_length = SWAP_LE16((cdf).fmt.file_comment_length); \ |
| 171 | (cdf).fmt.external_attributes = SWAP_LE32((cdf).fmt.external_attributes); \ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 172 | }} while (0) |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 173 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 174 | #define CDE_LEN 16 |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 175 | |
| 176 | typedef union { |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 177 | uint8_t raw[CDE_LEN]; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 178 | struct { |
| 179 | /* uint32_t signature; 50 4b 05 06 */ |
| 180 | uint16_t this_disk_no; |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 181 | uint16_t disk_with_cdf_no; |
| 182 | uint16_t cdf_entries_on_this_disk; |
| 183 | uint16_t cdf_entries_total; |
| 184 | uint32_t cdf_size; |
| 185 | uint32_t cdf_offset; |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 186 | /* uint16_t archive_comment_length; */ |
| 187 | /* archive comment follows */ |
| 188 | } fmt PACKED; |
| 189 | } cde_t; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 190 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 191 | #define FIX_ENDIANNESS_CDE(cde) \ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 192 | do { if (BB_BIG_ENDIAN) { \ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 193 | (cde).fmt.cdf_offset = SWAP_LE32((cde).fmt.cdf_offset); \ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 194 | }} while (0) |
| 195 | |
| 196 | struct BUG { |
| 197 | /* Check the offset of the last element, not the length. This leniency |
| 198 | * allows for poor packing, whereby the overall struct may be too long, |
| 199 | * even though the elements are all in the right place. |
| 200 | */ |
| 201 | char BUG_zip_header_must_be_26_bytes[ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 202 | offsetof(zip_header_t, fmt.extra_len) + 2 |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 203 | == ZIP_HEADER_LEN ? 1 : -1]; |
| 204 | char BUG_cdf_header_must_be_42_bytes[ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 205 | offsetof(cdf_header_t, fmt.relative_offset_of_local_header) + 4 |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 206 | == CDF_HEADER_LEN ? 1 : -1]; |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 207 | char BUG_cde_must_be_16_bytes[ |
| 208 | sizeof(cde_t) == CDE_LEN ? 1 : -1]; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 209 | }; |
| 210 | |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 211 | |
| 212 | enum { zip_fd = 3 }; |
| 213 | |
| 214 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 215 | /* This value means that we failed to find CDF */ |
| 216 | #define BAD_CDF_OFFSET ((uint32_t)0xffffffff) |
Dan Fandrich | b76f18d | 2010-06-17 21:39:44 -0700 | [diff] [blame] | 217 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 218 | #if !ENABLE_FEATURE_UNZIP_CDF |
| 219 | |
| 220 | # define find_cdf_offset() BAD_CDF_OFFSET |
| 221 | |
| 222 | #else |
Denys Vlasenko | 5e87e8a | 2013-07-20 15:20:46 +0200 | [diff] [blame] | 223 | /* Seen in the wild: |
| 224 | * Self-extracting PRO2K3XP_32.exe contains 19078464 byte zip archive, |
| 225 | * where CDE was nearly 48 kbytes before EOF. |
| 226 | * (Surprisingly, it also apparently has *another* CDE structure |
| 227 | * closer to the end, with bogus cdf_offset). |
| 228 | * To make extraction work, bumped PEEK_FROM_END from 16k to 64k. |
| 229 | */ |
| 230 | #define PEEK_FROM_END (64*1024) |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 231 | /* NB: does not preserve file position! */ |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 232 | static uint32_t find_cdf_offset(void) |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 233 | { |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 234 | cde_t cde; |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 235 | unsigned char *buf; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 236 | unsigned char *p; |
| 237 | off_t end; |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 238 | uint32_t found; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 239 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 240 | end = lseek(zip_fd, 0, SEEK_END); |
| 241 | if (end == (off_t) -1) |
| 242 | return BAD_CDF_OFFSET; |
| 243 | |
Dan Fandrich | b76f18d | 2010-06-17 21:39:44 -0700 | [diff] [blame] | 244 | end -= PEEK_FROM_END; |
Denys Vlasenko | fc2bb8f | 2010-05-24 13:07:55 +0200 | [diff] [blame] | 245 | if (end < 0) |
| 246 | end = 0; |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 247 | |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 248 | dbg("Looking for cdf_offset starting from 0x%"OFF_FMT"x", end); |
Denys Vlasenko | 876c121 | 2017-03-24 15:00:12 +0100 | [diff] [blame] | 249 | xlseek(zip_fd, end, SEEK_SET); |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 250 | buf = xzalloc(PEEK_FROM_END); |
Dan Fandrich | b76f18d | 2010-06-17 21:39:44 -0700 | [diff] [blame] | 251 | full_read(zip_fd, buf, PEEK_FROM_END); |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 252 | |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 253 | found = BAD_CDF_OFFSET; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 254 | p = buf; |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 255 | while (p <= buf + PEEK_FROM_END - CDE_LEN - 4) { |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 256 | if (*p != 'P') { |
| 257 | p++; |
| 258 | continue; |
| 259 | } |
| 260 | if (*++p != 'K') |
| 261 | continue; |
| 262 | if (*++p != 5) |
| 263 | continue; |
| 264 | if (*++p != 6) |
| 265 | continue; |
| 266 | /* we found CDE! */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 267 | memcpy(cde.raw, p + 1, CDE_LEN); |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 268 | dbg("cde.this_disk_no:%d", cde.fmt.this_disk_no ); |
| 269 | dbg("cde.disk_with_cdf_no:%d", cde.fmt.disk_with_cdf_no ); |
| 270 | dbg("cde.cdf_entries_on_this_disk:%d", cde.fmt.cdf_entries_on_this_disk); |
| 271 | dbg("cde.cdf_entries_total:%d", cde.fmt.cdf_entries_total ); |
| 272 | dbg("cde.cdf_size:%d", cde.fmt.cdf_size ); |
| 273 | dbg("cde.cdf_offset:%x", cde.fmt.cdf_offset ); |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 274 | FIX_ENDIANNESS_CDE(cde); |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 275 | /* |
| 276 | * I've seen .ZIP files with seemingly valid CDEs |
| 277 | * where cdf_offset points past EOF - ?? |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 278 | * This check ignores such CDEs: |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 279 | */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 280 | if (cde.fmt.cdf_offset < end + (p - buf)) { |
| 281 | found = cde.fmt.cdf_offset; |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 282 | dbg("Possible cdf_offset:0x%x at 0x%"OFF_FMT"x", |
| 283 | (unsigned)found, end + (p-3 - buf)); |
| 284 | dbg(" cdf_offset+cdf_size:0x%x", |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 285 | (unsigned)(found + SWAP_LE32(cde.fmt.cdf_size))); |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 286 | /* |
| 287 | * We do not "break" here because only the last CDE is valid. |
| 288 | * I've seen a .zip archive which contained a .zip file, |
| 289 | * uncompressed, and taking the first CDE was using |
| 290 | * the CDE inside that file! |
| 291 | */ |
| 292 | } |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 293 | } |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 294 | free(buf); |
Denys Vlasenko | 0ccf52a | 2016-04-17 21:05:34 +0200 | [diff] [blame] | 295 | dbg("Found cdf_offset:0x%x", (unsigned)found); |
| 296 | return found; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 297 | }; |
| 298 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 299 | static uint32_t read_next_cdf(uint32_t cdf_offset, cdf_header_t *cdf) |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 300 | { |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 301 | uint32_t magic; |
| 302 | |
| 303 | if (cdf_offset == BAD_CDF_OFFSET) |
| 304 | return cdf_offset; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 305 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 306 | dbg("Reading CDF at 0x%x", (unsigned)cdf_offset); |
| 307 | xlseek(zip_fd, cdf_offset, SEEK_SET); |
| 308 | xread(zip_fd, &magic, 4); |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 309 | /* Central Directory End? Assume CDF has ended. |
| 310 | * (more correct method is to use cde.cdf_entries_total counter) |
| 311 | */ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 312 | if (magic == ZIP_CDE_MAGIC) { |
| 313 | dbg("got ZIP_CDE_MAGIC"); |
| 314 | return 0; /* EOF */ |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 315 | } |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 316 | if (magic == ZIP64_CDE_MAGIC) { /* seen in .zip with >4GB files */ |
| 317 | dbg("got ZIP64_CDE_MAGIC"); |
| 318 | return 0; /* EOF */ |
| 319 | } |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 320 | xread(zip_fd, cdf->raw, CDF_HEADER_LEN); |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 321 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 322 | FIX_ENDIANNESS_CDF(*cdf); |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 323 | dbg(" magic:%08x filename_len:%u extra_len:%u file_comment_length:%u", |
| 324 | magic, |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 325 | (unsigned)cdf->fmt.filename_len, |
| 326 | (unsigned)cdf->fmt.extra_len, |
| 327 | (unsigned)cdf->fmt.file_comment_length |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 328 | ); |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 329 | //TODO: require that magic == ZIP_CDF_MAGIC? |
| 330 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 331 | cdf_offset += 4 + CDF_HEADER_LEN |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 332 | + cdf->fmt.filename_len |
| 333 | + cdf->fmt.extra_len |
| 334 | + cdf->fmt.file_comment_length; |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 335 | |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 336 | dbg("Next cdf_offset 0x%x", cdf_offset); |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 337 | return cdf_offset; |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 338 | }; |
| 339 | #endif |
| 340 | |
Denys Vlasenko | ad37abf | 2017-07-20 20:21:50 +0200 | [diff] [blame] | 341 | static void die_if_bad_fnamesize(unsigned sz) |
| 342 | { |
| 343 | if (sz > 0xfff) /* more than 4k?! no funny business please */ |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 344 | bb_simple_error_msg_and_die("bad archive"); |
Denys Vlasenko | ad37abf | 2017-07-20 20:21:50 +0200 | [diff] [blame] | 345 | } |
| 346 | |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 347 | static void unzip_skip(off_t skip) |
| 348 | { |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 349 | if (skip != 0) |
| 350 | if (lseek(zip_fd, skip, SEEK_CUR) == (off_t)-1) |
| 351 | bb_copyfd_exact_size(zip_fd, -1, skip); |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 352 | } |
| 353 | |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 354 | static void unzip_create_leading_dirs(const char *fn) |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 355 | { |
| 356 | /* Create all leading directories */ |
Rob Landley | d921b2e | 2006-08-03 15:41:12 +0000 | [diff] [blame] | 357 | char *name = xstrdup(fn); |
Denys Vlasenko | 5cdd120 | 2018-02-06 17:59:32 +0100 | [diff] [blame] | 358 | |
| 359 | /* mode of -1: set mode according to umask */ |
| 360 | if (bb_make_directory(dirname(name), -1, FILEUTILS_RECUR)) { |
Denys Vlasenko | 831756b | 2011-09-09 17:30:55 +0200 | [diff] [blame] | 361 | xfunc_die(); /* bb_make_directory is noisy */ |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 362 | } |
| 363 | free(name); |
| 364 | } |
| 365 | |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 366 | #if ENABLE_FEATURE_UNZIP_CDF |
Denys Vlasenko | a84db18 | 2018-02-20 15:57:45 +0100 | [diff] [blame] | 367 | static void unzip_extract_symlink(llist_t **symlink_placeholders, |
| 368 | zip_header_t *zip, |
| 369 | const char *dst_fn) |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 370 | { |
| 371 | char *target; |
| 372 | |
Denys Vlasenko | ad37abf | 2017-07-20 20:21:50 +0200 | [diff] [blame] | 373 | die_if_bad_fnamesize(zip->fmt.ucmpsize); |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 374 | |
| 375 | if (zip->fmt.method == 0) { |
| 376 | /* Method 0 - stored (not compressed) */ |
| 377 | target = xzalloc(zip->fmt.ucmpsize + 1); |
| 378 | xread(zip_fd, target, zip->fmt.ucmpsize); |
| 379 | } else { |
| 380 | #if 1 |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 381 | bb_simple_error_msg_and_die("compressed symlink is not supported"); |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 382 | #else |
| 383 | transformer_state_t xstate; |
| 384 | init_transformer_state(&xstate); |
| 385 | xstate.mem_output_size_max = zip->fmt.ucmpsize; |
| 386 | /* ...unpack... */ |
| 387 | if (!xstate.mem_output_buf) |
| 388 | WTF(); |
| 389 | target = xstate.mem_output_buf; |
| 390 | target = xrealloc(target, xstate.mem_output_size + 1); |
| 391 | target[xstate.mem_output_size] = '\0'; |
| 392 | #endif |
| 393 | } |
Harald van Dijk | 8c24af9 | 2018-05-22 17:34:31 +0200 | [diff] [blame] | 394 | create_or_remember_link(symlink_placeholders, |
Denys Vlasenko | a84db18 | 2018-02-20 15:57:45 +0100 | [diff] [blame] | 395 | target, |
Harald van Dijk | 8c24af9 | 2018-05-22 17:34:31 +0200 | [diff] [blame] | 396 | dst_fn, |
| 397 | 0); |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 398 | free(target); |
| 399 | } |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 400 | #endif |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 401 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 402 | static void unzip_extract(zip_header_t *zip, int dst_fd) |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 403 | { |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 404 | transformer_state_t xstate; |
| 405 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 406 | if (zip->fmt.method == 0) { |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 407 | /* Method 0 - stored (not compressed) */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 408 | off_t size = zip->fmt.ucmpsize; |
Denis Vlasenko | 714701c | 2006-12-22 00:21:07 +0000 | [diff] [blame] | 409 | if (size) |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 410 | bb_copyfd_exact_size(zip_fd, dst_fd, size); |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 411 | return; |
| 412 | } |
| 413 | |
| 414 | init_transformer_state(&xstate); |
| 415 | xstate.bytes_in = zip->fmt.cmpsize; |
| 416 | xstate.src_fd = zip_fd; |
| 417 | xstate.dst_fd = dst_fd; |
| 418 | if (zip->fmt.method == 8) { |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 419 | /* Method 8 - inflate */ |
Denys Vlasenko | b4c11c1 | 2014-12-07 00:44:00 +0100 | [diff] [blame] | 420 | if (inflate_unzip(&xstate) < 0) |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 421 | bb_simple_error_msg_and_die("inflate error"); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 422 | /* Validate decompression - crc */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 423 | if (zip->fmt.crc32 != (xstate.crc32 ^ 0xffffffffL)) { |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 424 | bb_simple_error_msg_and_die("crc error"); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 425 | } |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 426 | } |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 427 | #if ENABLE_FEATURE_UNZIP_BZIP2 |
| 428 | else if (zip->fmt.method == 12) { |
| 429 | /* Tested. Unpacker reads too much, but we use CDF |
| 430 | * and will seek to the correct beginning of next file. |
| 431 | */ |
| 432 | xstate.bytes_out = unpack_bz2_stream(&xstate); |
| 433 | if (xstate.bytes_out < 0) |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 434 | bb_simple_error_msg_and_die("inflate error"); |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 435 | } |
| 436 | #endif |
| 437 | #if ENABLE_FEATURE_UNZIP_LZMA |
| 438 | else if (zip->fmt.method == 14) { |
| 439 | /* Not tested yet */ |
| 440 | xstate.bytes_out = unpack_lzma_stream(&xstate); |
| 441 | if (xstate.bytes_out < 0) |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 442 | bb_simple_error_msg_and_die("inflate error"); |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 443 | } |
| 444 | #endif |
Denys Vlasenko | 6b4f4b5 | 2017-01-09 11:12:01 +0100 | [diff] [blame] | 445 | #if ENABLE_FEATURE_UNZIP_XZ |
| 446 | else if (zip->fmt.method == 95) { |
| 447 | /* Not tested yet */ |
| 448 | xstate.bytes_out = unpack_xz_stream(&xstate); |
| 449 | if (xstate.bytes_out < 0) |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 450 | bb_simple_error_msg_and_die("inflate error"); |
Denys Vlasenko | 6b4f4b5 | 2017-01-09 11:12:01 +0100 | [diff] [blame] | 451 | } |
| 452 | #endif |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 453 | else { |
| 454 | bb_error_msg_and_die("unsupported method %u", zip->fmt.method); |
| 455 | } |
| 456 | |
| 457 | /* Validate decompression - size */ |
Denys Vlasenko | afc766f | 2021-04-14 21:15:25 +0200 | [diff] [blame] | 458 | if (zip->fmt.ucmpsize != 0xffffffff /* seen on files with >4GB uncompressed data */ |
| 459 | && zip->fmt.ucmpsize != xstate.bytes_out |
| 460 | ) { |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 461 | /* Don't die. Who knows, maybe len calculation |
| 462 | * was botched somewhere. After all, crc matched! */ |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 463 | bb_simple_error_msg("bad length"); |
Denys Vlasenko | 2a0867a | 2017-01-09 10:58:37 +0100 | [diff] [blame] | 464 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 465 | } |
| 466 | |
Denys Vlasenko | bf99807 | 2013-01-22 11:16:08 +0100 | [diff] [blame] | 467 | static void my_fgets80(char *buf80) |
| 468 | { |
| 469 | fflush_all(); |
| 470 | if (!fgets(buf80, 80, stdin)) { |
James Byrne | 6937487 | 2019-07-02 11:35:03 +0200 | [diff] [blame] | 471 | bb_simple_perror_msg_and_die("can't read standard input"); |
Denys Vlasenko | bf99807 | 2013-01-22 11:16:08 +0100 | [diff] [blame] | 472 | } |
| 473 | } |
| 474 | |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 475 | static int get_lstat_mode(const char *dst_fn) |
| 476 | { |
| 477 | struct stat stat_buf; |
| 478 | if (lstat(dst_fn, &stat_buf) == -1) { |
| 479 | if (errno != ENOENT) { |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 480 | bb_perror_msg_and_die("can't stat '%s'", |
| 481 | dst_fn |
| 482 | ); |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 483 | } |
| 484 | /* File does not exist */ |
| 485 | return -1; |
| 486 | } |
| 487 | return stat_buf.st_mode; |
| 488 | } |
| 489 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame] | 490 | int unzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
Rob Landley | dfba741 | 2006-03-06 20:47:33 +0000 | [diff] [blame] | 491 | int unzip_main(int argc, char **argv) |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 492 | { |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 493 | enum { |
| 494 | OPT_l = (1 << 0), |
| 495 | OPT_x = (1 << 1), |
| 496 | OPT_j = (1 << 2), |
| 497 | }; |
| 498 | unsigned opts; |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 499 | smallint quiet = 0; |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 500 | IF_NOT_FEATURE_UNZIP_CDF(const) smallint verbose = 0; |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 501 | enum { O_PROMPT, O_NEVER, O_ALWAYS }; |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 502 | smallint overwrite = O_PROMPT; |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 503 | uint32_t cdf_offset; |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 504 | unsigned long total_usize; |
| 505 | unsigned long total_size; |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 506 | unsigned total_entries; |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 507 | int dst_fd = -1; |
| 508 | char *src_fn = NULL; |
| 509 | char *dst_fn = NULL; |
Mike Frysinger | 6902455 | 2005-07-30 07:30:26 +0000 | [diff] [blame] | 510 | llist_t *zaccept = NULL; |
| 511 | llist_t *zreject = NULL; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 512 | char *base_dir = NULL; |
Denys Vlasenko | a84db18 | 2018-02-20 15:57:45 +0100 | [diff] [blame] | 513 | #if ENABLE_FEATURE_UNZIP_CDF |
| 514 | llist_t *symlink_placeholders = NULL; |
| 515 | #endif |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 516 | int i; |
Denys Vlasenko | bf99807 | 2013-01-22 11:16:08 +0100 | [diff] [blame] | 517 | char key_buf[80]; /* must match size used by my_fgets80 */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 518 | |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 519 | /* -q, -l and -v: UnZip 5.52 of 28 February 2005, by Info-ZIP: |
| 520 | * |
| 521 | * # /usr/bin/unzip -qq -v decompress_unlzma.i.zip |
| 522 | * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i |
| 523 | * # /usr/bin/unzip -q -v decompress_unlzma.i.zip |
| 524 | * Length Method Size Ratio Date Time CRC-32 Name |
| 525 | * -------- ------ ------- ----- ---- ---- ------ ---- |
| 526 | * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i |
| 527 | * -------- ------- --- ------- |
| 528 | * 204372 35278 83% 1 file |
| 529 | * # /usr/bin/unzip -v decompress_unlzma.i.zip |
| 530 | * Archive: decompress_unlzma.i.zip |
| 531 | * Length Method Size Ratio Date Time CRC-32 Name |
| 532 | * -------- ------ ------- ----- ---- ---- ------ ---- |
| 533 | * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i |
| 534 | * -------- ------- --- ------- |
| 535 | * 204372 35278 83% 1 file |
| 536 | * # unzip -v decompress_unlzma.i.zip |
| 537 | * Archive: decompress_unlzma.i.zip |
| 538 | * Length Date Time Name |
| 539 | * -------- ---- ---- ---- |
| 540 | * 204372 09-06-09 14:23 decompress_unlzma.i |
| 541 | * -------- ------- |
| 542 | * 204372 1 files |
| 543 | * # /usr/bin/unzip -l -qq decompress_unlzma.i.zip |
| 544 | * 204372 09-06-09 14:23 decompress_unlzma.i |
| 545 | * # /usr/bin/unzip -l -q decompress_unlzma.i.zip |
| 546 | * Length Date Time Name |
| 547 | * -------- ---- ---- ---- |
| 548 | * 204372 09-06-09 14:23 decompress_unlzma.i |
| 549 | * -------- ------- |
| 550 | * 204372 1 file |
| 551 | * # /usr/bin/unzip -l decompress_unlzma.i.zip |
| 552 | * Archive: decompress_unlzma.i.zip |
| 553 | * Length Date Time Name |
| 554 | * -------- ---- ---- ---- |
| 555 | * 204372 09-06-09 14:23 decompress_unlzma.i |
| 556 | * -------- ------- |
| 557 | * 204372 1 file |
| 558 | */ |
| 559 | |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 560 | opts = 0; |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 561 | /* '-' makes getopt return 1 for non-options */ |
Denys Vlasenko | cca4c9f | 2021-04-14 21:34:00 +0200 | [diff] [blame] | 562 | while ((i = getopt(argc, argv, "-d:lnotpqxjv")) != -1) { |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 563 | switch (i) { |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 564 | case 'd': /* Extract to base directory */ |
| 565 | base_dir = optarg; |
| 566 | break; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 567 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 568 | case 'l': /* List */ |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 569 | opts |= OPT_l; |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 570 | break; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 571 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 572 | case 'n': /* Never overwrite existing files */ |
| 573 | overwrite = O_NEVER; |
| 574 | break; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 575 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 576 | case 'o': /* Always overwrite existing files */ |
| 577 | overwrite = O_ALWAYS; |
| 578 | break; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 579 | |
Denys Vlasenko | cca4c9f | 2021-04-14 21:34:00 +0200 | [diff] [blame] | 580 | case 't': /* Extract files to /dev/null */ |
| 581 | xmove_fd(xopen("/dev/null", O_WRONLY), STDOUT_FILENO); |
| 582 | /*fallthrough*/ |
| 583 | |
| 584 | case 'p': /* Extract files to stdout */ |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 585 | dst_fd = STDOUT_FILENO; |
Denys Vlasenko | cca4c9f | 2021-04-14 21:34:00 +0200 | [diff] [blame] | 586 | /*fallthrough*/ |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 587 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 588 | case 'q': /* Be quiet */ |
| 589 | quiet++; |
| 590 | break; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 591 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 592 | case 'v': /* Verbose list */ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 593 | IF_FEATURE_UNZIP_CDF(verbose++;) |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 594 | opts |= OPT_l; |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 595 | break; |
| 596 | |
| 597 | case 'x': |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 598 | opts |= OPT_x; |
| 599 | break; |
| 600 | |
| 601 | case 'j': |
| 602 | opts |= OPT_j; |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 603 | break; |
| 604 | |
| 605 | case 1: |
| 606 | if (!src_fn) { |
| 607 | /* The zip file */ |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 608 | /* +5: space for ".zip" and NUL */ |
| 609 | src_fn = xmalloc(strlen(optarg) + 5); |
Denis Vlasenko | 666c40c | 2007-03-31 10:17:24 +0000 | [diff] [blame] | 610 | strcpy(src_fn, optarg); |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 611 | } else if (!(opts & OPT_x)) { |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 612 | /* Include files */ |
| 613 | llist_add_to(&zaccept, optarg); |
| 614 | } else { |
| 615 | /* Exclude files */ |
| 616 | llist_add_to(&zreject, optarg); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 617 | } |
| 618 | break; |
| 619 | |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 620 | default: |
| 621 | bb_show_usage(); |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 622 | } |
| 623 | } |
| 624 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 625 | #ifndef __GLIBC__ |
| 626 | /* |
| 627 | * This code is needed for non-GNU getopt |
| 628 | * which doesn't understand "-" in option string. |
| 629 | * The -x option won't work properly in this case: |
| 630 | * "unzip a.zip q -x w e" will be interpreted as |
| 631 | * "unzip a.zip q w e -x" = "unzip a.zip q w e" |
| 632 | */ |
| 633 | argv += optind; |
| 634 | if (argv[0]) { |
| 635 | /* +5: space for ".zip" and NUL */ |
| 636 | src_fn = xmalloc(strlen(argv[0]) + 5); |
| 637 | strcpy(src_fn, argv[0]); |
| 638 | while (*++argv) |
| 639 | llist_add_to(&zaccept, *argv); |
| 640 | } |
| 641 | #endif |
| 642 | |
| 643 | if (!src_fn) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 644 | bb_show_usage(); |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 645 | } |
| 646 | |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 647 | /* Open input file */ |
Denis Vlasenko | 9f73944 | 2006-12-16 23:49:13 +0000 | [diff] [blame] | 648 | if (LONE_DASH(src_fn)) { |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 649 | xdup2(STDIN_FILENO, zip_fd); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 650 | /* Cannot use prompt mode since zip data is arriving on STDIN */ |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 651 | if (overwrite == O_PROMPT) |
| 652 | overwrite = O_NEVER; |
Glenn L McGrath | 237ae42 | 2002-11-03 14:05:15 +0000 | [diff] [blame] | 653 | } else { |
Denys Vlasenko | 3e134eb | 2016-04-22 18:09:21 +0200 | [diff] [blame] | 654 | static const char extn[][5] ALIGN1 = { ".zip", ".ZIP" }; |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 655 | char *ext = src_fn + strlen(src_fn); |
| 656 | int src_fd; |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 657 | |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 658 | i = 0; |
| 659 | for (;;) { |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 660 | src_fd = open(src_fn, O_RDONLY); |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 661 | if (src_fd >= 0) |
| 662 | break; |
| 663 | if (++i > 2) { |
| 664 | *ext = '\0'; |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 665 | bb_error_msg_and_die("can't open %s[.zip]", |
| 666 | src_fn |
| 667 | ); |
Denys Vlasenko | c5b0101 | 2012-06-15 16:43:26 +0200 | [diff] [blame] | 668 | } |
| 669 | strcpy(ext, extn[i - 1]); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 670 | } |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 671 | xmove_fd(src_fd, zip_fd); |
Glenn L McGrath | 237ae42 | 2002-11-03 14:05:15 +0000 | [diff] [blame] | 672 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 673 | |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 674 | /* Change dir if necessary */ |
Lauri Kasanen | b994374 | 2020-04-15 15:01:44 +0300 | [diff] [blame] | 675 | if (base_dir) { |
| 676 | /* -p DIR: try to create, errors don't matter. |
| 677 | * UnZip 6.00 does no multi-level mkdir (-p DIR1/DIR2 syntax), |
| 678 | * not using bb_make_directory() here (yet?) |
| 679 | */ |
| 680 | mkdir(base_dir, 0777); |
Rob Landley | d921b2e | 2006-08-03 15:41:12 +0000 | [diff] [blame] | 681 | xchdir(base_dir); |
Lauri Kasanen | b994374 | 2020-04-15 15:01:44 +0300 | [diff] [blame] | 682 | } |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 683 | |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 684 | if (quiet <= 1) { /* not -qq */ |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 685 | if (quiet == 0) { |
| 686 | printf("Archive: %s\n", |
| 687 | printable_string(src_fn) |
| 688 | ); |
| 689 | } |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 690 | if (opts & OPT_l) { |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 691 | puts(verbose ? |
Denys Vlasenko | 07bd979 | 2016-04-18 01:43:24 +0200 | [diff] [blame] | 692 | " Length Method Size Cmpr Date Time CRC-32 Name\n" |
| 693 | "-------- ------ ------- ---- ---------- ----- -------- ----" |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 694 | : |
Denys Vlasenko | 07bd979 | 2016-04-18 01:43:24 +0200 | [diff] [blame] | 695 | " Length Date Time Name\n" |
| 696 | "--------- ---------- ----- ----" |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 697 | ); |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 698 | } |
| 699 | } |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 700 | |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 701 | /* Example of an archive with one 0-byte long file named 'z' |
| 702 | * created by Zip 2.31 on Unix: |
| 703 | * 0000 [50 4b]03 04 0a 00 00 00 00 00 42 1a b8 3c 00 00 |PK........B..<..| |
| 704 | * sig........ vneed flags compr mtime mdate crc32> |
| 705 | * 0010 00 00 00 00 00 00 00 00 00 00 01 00 15 00 7a 55 |..............zU| |
| 706 | * >..... csize...... usize...... fnlen exlen fn ex> |
| 707 | * 0020 54 09 00 03 cc d3 f9 4b cc d3 f9 4b 55 78 04 00 |T......K...KUx..| |
| 708 | * >tra_field...................................... |
| 709 | * 0030 00 00 00 00[50 4b]01 02 17 03 0a 00 00 00 00 00 |....PK..........| |
| 710 | * ........... sig........ vmade vneed flags compr |
| 711 | * 0040 42 1a b8 3c 00 00 00 00 00 00 00 00 00 00 00 00 |B..<............| |
| 712 | * mtime mdate crc32...... csize...... usize...... |
| 713 | * 0050 01 00 0d 00 00 00 00 00 00 00 00 00 a4 81 00 00 |................| |
| 714 | * fnlen exlen clen. dnum. iattr eattr...... relofs> (eattr = rw-r--r--) |
| 715 | * 0060 00 00 7a 55 54 05 00 03 cc d3 f9 4b 55 78 00 00 |..zUT......KUx..| |
| 716 | * >..... fn extra_field........................... |
| 717 | * 0070 [50 4b]05 06 00 00 00 00 01 00 01 00 3c 00 00 00 |PK..........<...| |
| 718 | * 0080 34 00 00 00 00 00 |4.....| |
| 719 | */ |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 720 | total_usize = 0; |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 721 | total_size = 0; |
| 722 | total_entries = 0; |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 723 | cdf_offset = find_cdf_offset(); /* try to seek to the end, find CDE and CDF start */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 724 | while (1) { |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 725 | zip_header_t zip; |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 726 | mode_t dir_mode = 0777; |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 727 | #if ENABLE_FEATURE_UNZIP_CDF |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 728 | mode_t file_mode = 0666; |
| 729 | #endif |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 730 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 731 | if (!ENABLE_FEATURE_UNZIP_CDF || cdf_offset == BAD_CDF_OFFSET) { |
| 732 | /* Normally happens when input is unseekable. |
| 733 | * |
| 734 | * Valid ZIP file has Central Directory at the end |
| 735 | * with central directory file headers (CDFs). |
| 736 | * After it, there is a Central Directory End structure. |
| 737 | * CDFs identify what files are in the ZIP and where |
| 738 | * they are located. This allows ZIP readers to load |
| 739 | * the list of files without reading the entire ZIP archive. |
| 740 | * ZIP files may be appended to, only files specified in |
| 741 | * the CD are valid. Scanning for local file headers is |
| 742 | * not a correct algorithm. |
| 743 | * |
| 744 | * We try to do the above, and resort to "linear" reading |
| 745 | * of ZIP file only if seek failed or CDE wasn't found. |
| 746 | */ |
| 747 | uint32_t magic; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 748 | |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 749 | /* Check magic number */ |
| 750 | xread(zip_fd, &magic, 4); |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 751 | /* CDF item? Assume there are no more files, exit */ |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 752 | if (magic == ZIP_CDF_MAGIC) { |
| 753 | dbg("got ZIP_CDF_MAGIC"); |
| 754 | break; |
| 755 | } |
| 756 | /* Data descriptor? It was a streaming file, go on */ |
| 757 | if (magic == ZIP_DD_MAGIC) { |
| 758 | dbg("got ZIP_DD_MAGIC"); |
| 759 | /* skip over duplicate crc32, cmpsize and ucmpsize */ |
| 760 | unzip_skip(3 * 4); |
| 761 | continue; |
| 762 | } |
| 763 | if (magic != ZIP_FILEHEADER_MAGIC) |
| 764 | bb_error_msg_and_die("invalid zip magic %08X", (int)magic); |
| 765 | dbg("got ZIP_FILEHEADER_MAGIC"); |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 766 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 767 | xread(zip_fd, zip.raw, ZIP_HEADER_LEN); |
| 768 | FIX_ENDIANNESS_ZIP(zip); |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 769 | if (zip.fmt.zip_flags & SWAP_LE16(0x0008)) { |
| 770 | bb_error_msg_and_die("zip flag %s is not supported", |
| 771 | "8 (streaming)"); |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 772 | } |
| 773 | } |
| 774 | #if ENABLE_FEATURE_UNZIP_CDF |
| 775 | else { |
| 776 | /* cdf_offset is valid (and we know the file is seekable) */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 777 | cdf_header_t cdf; |
| 778 | cdf_offset = read_next_cdf(cdf_offset, &cdf); |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 779 | if (cdf_offset == 0) /* EOF? */ |
| 780 | break; |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 781 | # if 1 |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 782 | xlseek(zip_fd, |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 783 | SWAP_LE32(cdf.fmt.relative_offset_of_local_header) + 4, |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 784 | SEEK_SET); |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 785 | xread(zip_fd, zip.raw, ZIP_HEADER_LEN); |
| 786 | FIX_ENDIANNESS_ZIP(zip); |
| 787 | if (zip.fmt.zip_flags & SWAP_LE16(0x0008)) { |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 788 | /* 0x0008 - streaming. [u]cmpsize can be reliably gotten |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 789 | * only from Central Directory. |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 790 | */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 791 | zip.fmt.crc32 = cdf.fmt.crc32; |
| 792 | zip.fmt.cmpsize = cdf.fmt.cmpsize; |
| 793 | zip.fmt.ucmpsize = cdf.fmt.ucmpsize; |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 794 | } |
Denys Vlasenko | 38d9669 | 2017-07-11 22:10:52 +0200 | [diff] [blame] | 795 | // Seen in some zipfiles: central directory 9 byte extra field contains |
| 796 | // a subfield with ID 0x5455 and 5 data bytes, which is a Unix-style UTC mtime. |
| 797 | // Local header version: |
| 798 | // u16 0x5455 ("UT") |
| 799 | // u16 size (1 + 4 * n) |
| 800 | // u8 flags: bit 0:mtime is present, bit 1:atime is present, bit 2:ctime is present |
| 801 | // u32 mtime |
| 802 | // u32 atime |
| 803 | // u32 ctime |
| 804 | // Central header version: |
| 805 | // u16 0x5455 ("UT") |
| 806 | // u16 size (5 (or 1?)) |
| 807 | // u8 flags: bit 0:mtime is present, bit 1:atime is present, bit 2:ctime is present |
| 808 | // u32 mtime (CDF does not store atime/ctime) |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 809 | # else |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 810 | /* CDF has the same data as local header, no need to read the latter... |
| 811 | * ...not really. An archive was seen with cdf.extra_len == 6 but |
| 812 | * zip.extra_len == 0. |
| 813 | */ |
| 814 | memcpy(&zip.fmt.version, |
| 815 | &cdf.fmt.version_needed, ZIP_HEADER_LEN); |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 816 | xlseek(zip_fd, |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 817 | SWAP_LE32(cdf.fmt.relative_offset_of_local_header) + 4 + ZIP_HEADER_LEN, |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 818 | SEEK_SET); |
| 819 | # endif |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 820 | if ((cdf.fmt.version_made_by >> 8) == 3) { |
Denys Vlasenko | 26cd90c | 2013-07-21 02:31:08 +0200 | [diff] [blame] | 821 | /* This archive is created on Unix */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 822 | dir_mode = file_mode = (cdf.fmt.external_attributes >> 16); |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 823 | } |
Denis Vlasenko | 48a9971 | 2008-07-26 17:32:41 +0000 | [diff] [blame] | 824 | } |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 825 | #endif |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 826 | |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 827 | if (zip.fmt.zip_flags & SWAP_LE16(0x0001)) { |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 828 | /* 0x0001 - encrypted */ |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 829 | bb_error_msg_and_die("zip flag %s is not supported", |
| 830 | "1 (encryption)"); |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 831 | } |
Denys Vlasenko | bca4dee | 2016-04-18 01:14:05 +0200 | [diff] [blame] | 832 | dbg("File cmpsize:0x%x extra_len:0x%x ucmpsize:0x%x", |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 833 | (unsigned)zip.fmt.cmpsize, |
| 834 | (unsigned)zip.fmt.extra_len, |
| 835 | (unsigned)zip.fmt.ucmpsize |
Denys Vlasenko | bca4dee | 2016-04-18 01:14:05 +0200 | [diff] [blame] | 836 | ); |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 837 | |
| 838 | /* Read filename */ |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 839 | free(dst_fn); |
Denys Vlasenko | ad37abf | 2017-07-20 20:21:50 +0200 | [diff] [blame] | 840 | die_if_bad_fnamesize(zip.fmt.filename_len); |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 841 | dst_fn = xzalloc(zip.fmt.filename_len + 1); |
| 842 | xread(zip_fd, dst_fn, zip.fmt.filename_len); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 843 | /* Skip extra header bytes */ |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 844 | unzip_skip(zip.fmt.extra_len); |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 845 | |
Denys Vlasenko | 8c06bc6 | 2015-02-10 01:30:43 +0100 | [diff] [blame] | 846 | /* Guard against "/abspath", "/../" and similar attacks */ |
| 847 | overlapping_strcpy(dst_fn, strip_unsafe_prefix(dst_fn)); |
| 848 | |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 849 | /* Filter zip entries */ |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 850 | if (find_list_entry(zreject, dst_fn) |
| 851 | || (zaccept && !find_list_entry(zaccept, dst_fn)) |
| 852 | ) { /* Skip entry */ |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 853 | goto skip_cmpsize; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 854 | } |
| 855 | |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 856 | if (opts & OPT_l) { |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 857 | /* List entry */ |
| 858 | char dtbuf[sizeof("mm-dd-yyyy hh:mm")]; |
| 859 | sprintf(dtbuf, "%02u-%02u-%04u %02u:%02u", |
| 860 | (zip.fmt.moddate >> 5) & 0xf, // mm: 0x01e0 |
| 861 | (zip.fmt.moddate) & 0x1f, // dd: 0x001f |
| 862 | (zip.fmt.moddate >> 9) + 1980, // yy: 0xfe00 |
| 863 | (zip.fmt.modtime >> 11), // hh: 0xf800 |
| 864 | (zip.fmt.modtime >> 5) & 0x3f // mm: 0x07e0 |
| 865 | // seconds/2 not shown, encoded in -- 0x001f |
| 866 | ); |
| 867 | if (!verbose) { |
| 868 | // " Length Date Time Name\n" |
| 869 | // "--------- ---------- ----- ----" |
| 870 | printf( "%9u " "%s " "%s\n", |
| 871 | (unsigned)zip.fmt.ucmpsize, |
| 872 | dtbuf, |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 873 | printable_string(dst_fn) |
| 874 | ); |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 875 | } else { |
| 876 | char method6[7]; |
| 877 | unsigned long percents; |
| 878 | |
| 879 | sprintf(method6, "%6u", zip.fmt.method); |
| 880 | if (zip.fmt.method == 0) { |
| 881 | strcpy(method6, "Stored"); |
| 882 | } |
| 883 | if (zip.fmt.method == 8) { |
| 884 | strcpy(method6, "Defl:N"); |
| 885 | /* normal, maximum, fast, superfast */ |
| 886 | IF_DESKTOP(method6[5] = "NXFS"[(zip.fmt.zip_flags >> 1) & 3];) |
| 887 | } |
| 888 | percents = zip.fmt.ucmpsize - zip.fmt.cmpsize; |
| 889 | if ((int32_t)percents < 0) |
| 890 | percents = 0; /* happens if ucmpsize < cmpsize */ |
| 891 | percents = percents * 100; |
| 892 | if (zip.fmt.ucmpsize) |
| 893 | percents /= zip.fmt.ucmpsize; |
| 894 | // " Length Method Size Cmpr Date Time CRC-32 Name\n" |
| 895 | // "-------- ------ ------- ---- ---------- ----- -------- ----" |
| 896 | printf( "%8u %s" "%9u%4u%% " "%s " "%08x " "%s\n", |
| 897 | (unsigned)zip.fmt.ucmpsize, |
| 898 | method6, |
| 899 | (unsigned)zip.fmt.cmpsize, |
| 900 | (unsigned)percents, |
| 901 | dtbuf, |
| 902 | zip.fmt.crc32, |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 903 | printable_string(dst_fn) |
| 904 | ); |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 905 | total_size += zip.fmt.cmpsize; |
| 906 | } |
| 907 | total_usize += zip.fmt.ucmpsize; |
| 908 | goto skip_cmpsize; |
| 909 | } |
| 910 | |
| 911 | if (dst_fd == STDOUT_FILENO) { |
| 912 | /* Extracting to STDOUT */ |
| 913 | goto do_extract; |
| 914 | } |
Eugene Rudoy | c6f213a | 2017-11-07 08:03:36 +0100 | [diff] [blame] | 915 | |
| 916 | /* Strip paths (after -l: unzip -lj a.zip lists full names) */ |
| 917 | if (opts & OPT_j) |
| 918 | overlapping_strcpy(dst_fn, bb_basename(dst_fn)); |
| 919 | /* Did this strip everything ("DIR/" case)? Then skip */ |
| 920 | if (!dst_fn[0]) |
| 921 | goto skip_cmpsize; |
| 922 | |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 923 | if (last_char_is(dst_fn, '/')) { |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 924 | int mode; |
| 925 | |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 926 | /* Extract directory */ |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 927 | mode = get_lstat_mode(dst_fn); |
| 928 | if (mode == -1) { /* ENOENT */ |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 929 | if (!quiet) { |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 930 | printf(" creating: %s\n", printable_string(dst_fn)); |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 931 | } |
| 932 | unzip_create_leading_dirs(dst_fn); |
| 933 | if (bb_make_directory(dst_fn, dir_mode, FILEUTILS_IGNORE_CHMOD_ERR)) { |
| 934 | xfunc_die(); |
| 935 | } |
| 936 | } else { |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 937 | if (!S_ISDIR(mode)) { |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 938 | bb_error_msg_and_die("'%s' exists but is not a %s", |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 939 | printable_string(dst_fn), |
| 940 | "directory" |
| 941 | ); |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 942 | } |
| 943 | } |
| 944 | goto skip_cmpsize; |
| 945 | } |
| 946 | check_file: |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 947 | /* Does target file already exist? */ |
| 948 | { |
| 949 | int mode = get_lstat_mode(dst_fn); |
| 950 | if (mode == -1) { |
| 951 | /* ENOENT: does not exist */ |
| 952 | goto do_open_and_extract; |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 953 | } |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 954 | if (overwrite == O_NEVER) { |
| 955 | goto skip_cmpsize; |
| 956 | } |
| 957 | if (!S_ISREG(mode)) { |
| 958 | fishy: |
| 959 | bb_error_msg_and_die("'%s' exists but is not a %s", |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 960 | printable_string(dst_fn), |
| 961 | "regular file" |
| 962 | ); |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 963 | } |
| 964 | if (overwrite == O_ALWAYS) { |
| 965 | goto do_open_and_extract; |
| 966 | } |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 967 | printf("replace %s? [y]es, [n]o, [A]ll, [N]one, [r]ename: ", |
| 968 | printable_string(dst_fn) |
| 969 | ); |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 970 | my_fgets80(key_buf); |
| 971 | /* User input could take a long time. Is it still a regular file? */ |
| 972 | mode = get_lstat_mode(dst_fn); |
| 973 | if (!S_ISREG(mode)) |
| 974 | goto fishy; |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 975 | } |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 976 | |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 977 | /* Extract (or skip) it */ |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 978 | switch (key_buf[0]) { |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 979 | case 'A': |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 980 | overwrite = O_ALWAYS; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 981 | case 'y': /* Open file and fall into unzip */ |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 982 | do_open_and_extract: |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 983 | unzip_create_leading_dirs(dst_fn); |
Denys Vlasenko | e3c4db8 | 2017-01-05 11:43:53 +0100 | [diff] [blame] | 984 | #if ENABLE_FEATURE_UNZIP_CDF |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 985 | dst_fd = -1; |
| 986 | if (!S_ISLNK(file_mode)) { |
| 987 | dst_fd = xopen3(dst_fn, |
| 988 | O_WRONLY | O_CREAT | O_TRUNC | O_NOFOLLOW, |
| 989 | file_mode); |
| 990 | } |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 991 | #else |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 992 | /* O_NOFOLLOW defends against symlink attacks */ |
| 993 | dst_fd = xopen(dst_fn, O_WRONLY | O_CREAT | O_TRUNC | O_NOFOLLOW); |
Denys Vlasenko | 4e8ff73 | 2010-05-24 04:33:02 +0200 | [diff] [blame] | 994 | #endif |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 995 | if (!quiet) { |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 996 | printf(/* zip.fmt.method == 0 |
| 997 | ? " extracting: %s\n" |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 998 | : */ " inflating: %s\n", |
| 999 | printable_string(dst_fn) |
| 1000 | ); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1001 | } |
Denys Vlasenko | cca4c9f | 2021-04-14 21:34:00 +0200 | [diff] [blame] | 1002 | do_extract: |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 1003 | #if ENABLE_FEATURE_UNZIP_CDF |
| 1004 | if (S_ISLNK(file_mode)) { |
Denys Vlasenko | bff9bbc | 2017-07-20 18:56:05 +0200 | [diff] [blame] | 1005 | if (dst_fd != STDOUT_FILENO) /* not -p? */ |
Denys Vlasenko | a84db18 | 2018-02-20 15:57:45 +0100 | [diff] [blame] | 1006 | unzip_extract_symlink(&symlink_placeholders, &zip, dst_fn); |
Denys Vlasenko | 13ae85e | 2017-07-20 18:34:51 +0200 | [diff] [blame] | 1007 | } else |
| 1008 | #endif |
| 1009 | { |
| 1010 | unzip_extract(&zip, dst_fd); |
| 1011 | if (dst_fd != STDOUT_FILENO) { |
| 1012 | /* closing STDOUT is potentially bad for future business */ |
| 1013 | close(dst_fd); |
| 1014 | } |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1015 | } |
| 1016 | break; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 1017 | |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1018 | case 'N': |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 1019 | overwrite = O_NEVER; |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 1020 | case 'n': /* Skip entry data */ |
| 1021 | skip_cmpsize: |
Denys Vlasenko | 0ffac1c | 2017-01-08 14:14:19 +0100 | [diff] [blame] | 1022 | unzip_skip(zip.fmt.cmpsize); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1023 | break; |
| 1024 | |
| 1025 | case 'r': |
| 1026 | /* Prompt for new name */ |
| 1027 | printf("new name: "); |
Denys Vlasenko | bf99807 | 2013-01-22 11:16:08 +0100 | [diff] [blame] | 1028 | my_fgets80(key_buf); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1029 | free(dst_fn); |
Rob Landley | d921b2e | 2006-08-03 15:41:12 +0000 | [diff] [blame] | 1030 | dst_fn = xstrdup(key_buf); |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1031 | chomp(dst_fn); |
Denis Vlasenko | 48a9971 | 2008-07-26 17:32:41 +0000 | [diff] [blame] | 1032 | goto check_file; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1033 | |
| 1034 | default: |
Denys Vlasenko | 8c1d857 | 2017-01-09 13:10:10 +0100 | [diff] [blame] | 1035 | printf("error: invalid response [%c]\n", (char)key_buf[0]); |
Denis Vlasenko | 48a9971 | 2008-07-26 17:32:41 +0000 | [diff] [blame] | 1036 | goto check_file; |
Paul Fox | 0840b76 | 2005-07-20 20:26:49 +0000 | [diff] [blame] | 1037 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 1038 | |
Denis Vlasenko | 006e862 | 2008-09-21 01:01:46 +0000 | [diff] [blame] | 1039 | total_entries++; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 1040 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 1041 | |
Denys Vlasenko | a84db18 | 2018-02-20 15:57:45 +0100 | [diff] [blame] | 1042 | #if ENABLE_FEATURE_UNZIP_CDF |
Harald van Dijk | 8c24af9 | 2018-05-22 17:34:31 +0200 | [diff] [blame] | 1043 | create_links_from_list(symlink_placeholders); |
Denys Vlasenko | a84db18 | 2018-02-20 15:57:45 +0100 | [diff] [blame] | 1044 | #endif |
| 1045 | |
Denys Vlasenko | 997ad2c | 2017-07-20 20:04:49 +0200 | [diff] [blame] | 1046 | if ((opts & OPT_l) && quiet <= 1) { |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 1047 | if (!verbose) { |
Denys Vlasenko | 07bd979 | 2016-04-18 01:43:24 +0200 | [diff] [blame] | 1048 | // " Length Date Time Name\n" |
| 1049 | // "--------- ---------- ----- ----" |
| 1050 | printf( " --------%21s" "-------\n" |
| 1051 | "%9lu%21s" "%u files\n", |
| 1052 | "", |
| 1053 | total_usize, "", total_entries); |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 1054 | } else { |
| 1055 | unsigned long percents = total_usize - total_size; |
Denys Vlasenko | 07bd979 | 2016-04-18 01:43:24 +0200 | [diff] [blame] | 1056 | if ((long)percents < 0) |
| 1057 | percents = 0; /* happens if usize < size */ |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 1058 | percents = percents * 100; |
| 1059 | if (total_usize) |
| 1060 | percents /= total_usize; |
Denys Vlasenko | 07bd979 | 2016-04-18 01:43:24 +0200 | [diff] [blame] | 1061 | // " Length Method Size Cmpr Date Time CRC-32 Name\n" |
| 1062 | // "-------- ------ ------- ---- ---------- ----- -------- ----" |
| 1063 | printf( "-------- ------- ----%28s" "----\n" |
| 1064 | "%8lu" "%17lu%4u%%%28s" "%u files\n", |
| 1065 | "", |
| 1066 | total_usize, total_size, (unsigned)percents, "", |
Denys Vlasenko | 386bc9f | 2009-09-06 16:52:50 +0200 | [diff] [blame] | 1067 | total_entries); |
| 1068 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 1069 | } |
| 1070 | |
Denis Vlasenko | bc7c5d0 | 2007-10-18 23:27:46 +0000 | [diff] [blame] | 1071 | return 0; |
Glenn L McGrath | 87ac702 | 2002-01-02 13:52:26 +0000 | [diff] [blame] | 1072 | } |