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Antoine Cœur0c2fceb2017-10-05 15:30:37 +08001/* zip.c -- Zip manipulation
Antoine Cœur0c2fceb2017-10-05 15:30:37 +08002 part of the MiniZip project
3
Nathan Moinvazirib39f7a02020-02-12 08:25:33 -08004 Copyright (C) 2010-2020 Nathan Moinvaziri
Antoine Cœur0c2fceb2017-10-05 15:30:37 +08005 https://github.com/nmoinvaz/minizip
Nathan Moinvaziri79cfab02018-08-17 12:21:06 -07006 Copyright (C) 2009-2010 Mathias Svensson
Antoine Cœur0c2fceb2017-10-05 15:30:37 +08007 Modifications for Zip64 support
8 http://result42.com
Nathan Moinvaziri79cfab02018-08-17 12:21:06 -07009 Copyright (C) 2007-2008 Even Rouault
10 Modifications of Unzip for Zip64
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080011 Copyright (C) 1998-2010 Gilles Vollant
Viktor Szakats9dea6f22018-10-17 22:39:01 +000012 https://www.winimage.com/zLibDll/minizip.html
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080013
14 This program is distributed under the terms of the same license as zlib.
15 See the accompanying LICENSE file for the full text of the license.
16*/
17
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080018
Nathan Moinvaziri00cca9f2017-10-16 07:37:11 -070019#include "mz.h"
Nathan Moinvaziri5f091882018-10-24 18:06:08 -070020#include "mz_crypt.h"
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080021#include "mz_strm.h"
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080022#ifdef HAVE_BZIP2
23# include "mz_strm_bzip.h"
24#endif
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -080025#ifdef HAVE_LIBCOMP
Nathan Moinvaziri90d31c72018-11-20 03:17:20 -080026# include "mz_strm_libcomp.h"
27#endif
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080028#ifdef HAVE_LZMA
29# include "mz_strm_lzma.h"
30#endif
Nathan Moinvazirib47b41b2018-07-11 09:44:29 -070031#include "mz_strm_mem.h"
Nathan Moinvaziri0e5c9dc2018-05-23 20:21:48 -070032#ifdef HAVE_PKCRYPT
33# include "mz_strm_pkcrypt.h"
34#endif
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -080035#ifdef HAVE_WZAES
Nathan Moinvaziri21a31022018-10-24 09:50:16 -070036# include "mz_strm_wzaes.h"
37#endif
Nathan Moinvaziri4f6a0e32017-11-10 08:45:14 -080038#ifdef HAVE_ZLIB
39# include "mz_strm_zlib.h"
40#endif
Nathan Moinvaziri1f4758b2020-06-14 21:52:55 -070041#ifdef HAVE_ZSTD
42# include "mz_strm_zstd.h"
43#endif
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080044
45#include "mz_zip.h"
46
Nathan Moinvazirib16ab562018-11-20 16:56:21 -080047#include <ctype.h> /* tolower */
Nathan Moinvazirie8496272018-11-21 15:05:58 -080048#include <stdio.h> /* snprintf */
Nathan Moinvaziri1ee609b2018-11-19 21:34:35 -080049
zedcf076662019-05-15 21:43:56 +030050#if defined(_MSC_VER) || defined(__MINGW32__)
Nathan Moinvaziri2e0a20a2019-04-28 13:03:11 -070051# define localtime_r(t1,t2) (localtime_s(t2,t1) == 0 ? t1 : NULL)
zed65447dd2019-05-16 22:19:08 +030052#endif
53#if defined(_MSC_VER) && (_MSC_VER < 1900)
54# define snprintf _snprintf
Nathan Moinvaziric565fa82018-10-19 08:48:33 -070055#endif
56
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080057/***************************************************************************/
58
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070059#define MZ_ZIP_MAGIC_LOCALHEADER (0x04034b50)
Nathan Moinvaziribe483d82019-10-19 17:30:23 -070060#define MZ_ZIP_MAGIC_LOCALHEADERU8 { 0x50, 0x4b, 0x03, 0x04 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070061#define MZ_ZIP_MAGIC_CENTRALHEADER (0x02014b50)
Nathan Moinvaziri545d7292019-10-21 15:32:18 -070062#define MZ_ZIP_MAGIC_CENTRALHEADERU8 { 0x50, 0x4b, 0x01, 0x02 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070063#define MZ_ZIP_MAGIC_ENDHEADER (0x06054b50)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -080064#define MZ_ZIP_MAGIC_ENDHEADERU8 { 0x50, 0x4b, 0x05, 0x06 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070065#define MZ_ZIP_MAGIC_ENDHEADER64 (0x06064b50)
66#define MZ_ZIP_MAGIC_ENDLOCHEADER64 (0x07064b50)
67#define MZ_ZIP_MAGIC_DATADESCRIPTOR (0x08074b50)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -080068#define MZ_ZIP_MAGIC_DATADESCRIPTORU8 { 0x50, 0x4b, 0x07, 0x08 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070069
Nathan Moinvaziriba1db162018-11-23 10:07:35 -080070#define MZ_ZIP_SIZE_LD_ITEM (30)
Nathan Moinvaziri638f31f2018-08-27 08:17:16 -070071#define MZ_ZIP_SIZE_CD_ITEM (46)
72#define MZ_ZIP_SIZE_CD_LOCATOR64 (20)
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -080073#define MZ_ZIP_SIZE_MAX_DATA_DESCRIPTOR (24)
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080074
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -080075#define MZ_ZIP_OFFSET_CRC_SIZES (14)
76
Nathan Moinvaziric78c7822018-12-01 20:42:36 -080077#ifndef MZ_ZIP_EOCD_MAX_BACK
78#define MZ_ZIP_EOCD_MAX_BACK (1 << 20)
79#endif
80
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080081/***************************************************************************/
82
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -070083typedef struct mz_zip_s {
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080084 mz_zip_file file_info;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070085 mz_zip_file local_file_info;
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080086
Nathan Moinvazirib16ab562018-11-20 16:56:21 -080087 void *stream; /* main stream */
88 void *cd_stream; /* pointer to the stream with the cd */
89 void *cd_mem_stream; /* memory stream for central directory */
90 void *compress_stream; /* compression stream */
91 void *crypt_stream; /* encryption stream */
92 void *file_info_stream; /* memory stream for storing file info */
93 void *local_file_info_stream; /* memory stream for storing local file info */
Antoine Cœur0c2fceb2017-10-05 15:30:37 +080094
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070095 int32_t open_mode;
Nathan Moinvaziridd103f42018-11-13 14:50:32 -080096 uint8_t recover;
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -080097 uint8_t data_descriptor;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -070098
Nathan Moinvazirib16ab562018-11-20 16:56:21 -080099 uint32_t disk_number_with_cd; /* number of the disk with the central dir */
100 int64_t disk_offset_shift; /* correction for zips that have wrong offset start of cd */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700101
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800102 int64_t cd_start_pos; /* pos of the first file in the central dir stream */
103 int64_t cd_current_pos; /* pos of the current file in the central dir */
104 int64_t cd_offset; /* offset of start of central directory */
105 int64_t cd_size; /* size of the central directory */
Nathan Moinvaziri0e1fd892019-09-28 20:55:37 -0700106 uint32_t cd_signature; /* signature of central directory */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700107
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800108 uint8_t entry_scanned; /* entry header information read ok */
109 uint8_t entry_opened; /* entry is open for read/write */
110 uint8_t entry_raw; /* entry opened with raw mode */
111 uint32_t entry_crc32; /* entry crc32 */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700112
Nathan Moinvaziri904c4082018-10-08 23:31:21 -0700113 uint64_t number_entry;
Nathan Moinvaziri6e21e862017-10-19 09:57:54 -0700114
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700115 uint16_t version_madeby;
Nathan Moinvaziri6e21e862017-10-19 09:57:54 -0700116 char *comment;
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800117} mz_zip;
118
119/***************************************************************************/
120
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800121#if 0
122# define mz_zip_print printf
123#else
124# define mz_zip_print(fmt,...)
125#endif
126
127/***************************************************************************/
128
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800129/* Locate the end of central directory */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700130static int32_t mz_zip_search_eocd(void *stream, int64_t *central_pos) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700131 int64_t file_size = 0;
Nathan Moinvaziric78c7822018-12-01 20:42:36 -0800132 int64_t max_back = MZ_ZIP_EOCD_MAX_BACK;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800133 uint8_t find[4] = MZ_ZIP_MAGIC_ENDHEADERU8;
Nathan Moinvaziri05e03ca2018-10-28 16:15:13 -0700134 int32_t err = MZ_OK;
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700135
Nathan Moinvaziri05e03ca2018-10-28 16:15:13 -0700136 err = mz_stream_seek(stream, 0, MZ_SEEK_END);
Nathan Moinvaziria93a2ad2018-11-13 17:51:42 -0800137 if (err != MZ_OK)
138 return err;
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800139
140 file_size = mz_stream_tell(stream);
Nathan Moinvaziri286a8172018-11-08 14:56:14 -0800141
Nathan Moinvaziric78c7822018-12-01 20:42:36 -0800142 if (max_back <= 0 || max_back > file_size)
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800143 max_back = file_size;
144
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800145 return mz_stream_find_reverse(stream, (const void *)find, sizeof(find), max_back, central_pos);
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800146}
147
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800148/* Locate the end of central directory 64 of a zip file */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700149static int32_t mz_zip_search_zip64_eocd(void *stream, const int64_t end_central_offset, int64_t *central_pos) {
Nathan Moinvaziri904c4082018-10-08 23:31:21 -0700150 int64_t offset = 0;
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800151 uint32_t value32 = 0;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700152 int32_t err = MZ_OK;
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700153
154
155 *central_pos = 0;
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800156
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800157 /* Zip64 end of central directory locator */
Nathan Moinvaziri79ac3382017-10-23 17:22:36 -0700158 err = mz_stream_seek(stream, end_central_offset - MZ_ZIP_SIZE_CD_LOCATOR64, MZ_SEEK_SET);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800159 /* Read locator signature */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700160 if (err == MZ_OK) {
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700161 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvaziri00cca9f2017-10-16 07:37:11 -0700162 if (value32 != MZ_ZIP_MAGIC_ENDLOCHEADER64)
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700163 err = MZ_FORMAT_ERROR;
164 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800165 /* Number of the disk with the start of the zip64 end of central directory */
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700166 if (err == MZ_OK)
167 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800168 /* Relative offset of the zip64 end of central directory record8 */
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700169 if (err == MZ_OK)
Nathan Moinvaziri904c4082018-10-08 23:31:21 -0700170 err = mz_stream_read_uint64(stream, (uint64_t *)&offset);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800171 /* Total number of disks */
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700172 if (err == MZ_OK)
173 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800174 /* Goto end of central directory record */
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700175 if (err == MZ_OK)
Nathan Moinvaziri904c4082018-10-08 23:31:21 -0700176 err = mz_stream_seek(stream, (int64_t)offset, MZ_SEEK_SET);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800177 /* The signature */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700178 if (err == MZ_OK) {
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700179 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvaziri00cca9f2017-10-16 07:37:11 -0700180 if (value32 != MZ_ZIP_MAGIC_ENDHEADER64)
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700181 err = MZ_FORMAT_ERROR;
182 }
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800183
Nathan Moinvaziri3a0fb552017-10-10 12:47:48 -0700184 if (err == MZ_OK)
185 *central_pos = offset;
186
187 return err;
Antoine Cœur0c2fceb2017-10-05 15:30:37 +0800188}
189
Nathan Moinvaziri215a7a82020-12-13 10:58:41 -0800190/* Get PKWARE traditional encryption verifier */
191static uint16_t mz_zip_get_pk_verify(uint32_t dos_date, uint64_t crc, uint16_t flag)
192{
Nathan Moinvaziri0030fa22020-12-21 19:31:07 -0800193 /* Info-ZIP modification to ZipCrypto format: if bit 3 of the general
Nathan Moinvaziri215a7a82020-12-13 10:58:41 -0800194 * purpose bit flag is set, it uses high byte of 16-bit File Time. */
195 if (flag & MZ_ZIP_FLAG_DATA_DESCRIPTOR)
196 return ((dos_date >> 16) & 0xff) << 8 | ((dos_date >> 8) & 0xff);
197 return ((crc >> 16) & 0xff) << 8 | ((crc >> 24) & 0xff);
198}
199
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800200/* Get info about the current file in the zip file */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700201static int32_t mz_zip_entry_read_header(void *stream, uint8_t local, mz_zip_file *file_info, void *file_extra_stream) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700202 uint64_t ntfs_time = 0;
203 uint32_t reserved = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700204 uint32_t magic = 0;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700205 uint32_t dos_date = 0;
Nathan Moinvaziri69e35492018-11-05 15:48:41 -0800206 uint32_t field_pos = 0;
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700207 uint16_t field_type = 0;
208 uint16_t field_length = 0;
209 uint32_t field_length_read = 0;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700210 uint16_t ntfs_attrib_id = 0;
211 uint16_t ntfs_attrib_size = 0;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700212 uint16_t linkname_size;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700213 uint16_t value16 = 0;
214 uint32_t value32 = 0;
Nathan Moinvazirif9e34482018-11-27 09:45:09 -0800215 int64_t extrafield_pos = 0;
216 int64_t comment_pos = 0;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700217 int64_t linkname_pos = 0;
218 int64_t saved_pos = 0;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700219 int32_t err = MZ_OK;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700220 char *linkname = NULL;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700221
222
223 memset(file_info, 0, sizeof(mz_zip_file));
224
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800225 /* Check the magic */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700226 err = mz_stream_read_uint32(stream, &magic);
Nathan Moinvaziricda36002017-10-21 09:37:18 -0700227 if (err == MZ_END_OF_STREAM)
228 err = MZ_END_OF_LIST;
229 else if (magic == MZ_ZIP_MAGIC_ENDHEADER || magic == MZ_ZIP_MAGIC_ENDHEADER64)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700230 err = MZ_END_OF_LIST;
231 else if ((local) && (magic != MZ_ZIP_MAGIC_LOCALHEADER))
232 err = MZ_FORMAT_ERROR;
233 else if ((!local) && (magic != MZ_ZIP_MAGIC_CENTRALHEADER))
234 err = MZ_FORMAT_ERROR;
Viktor Szakats915b82e2018-04-24 10:02:39 +0000235
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800236 /* Read header fields */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700237 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700238 if (!local)
239 err = mz_stream_read_uint16(stream, &file_info->version_madeby);
240 if (err == MZ_OK)
241 err = mz_stream_read_uint16(stream, &file_info->version_needed);
242 if (err == MZ_OK)
243 err = mz_stream_read_uint16(stream, &file_info->flag);
244 if (err == MZ_OK)
245 err = mz_stream_read_uint16(stream, &file_info->compression_method);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700246 if (err == MZ_OK) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700247 err = mz_stream_read_uint32(stream, &dos_date);
248 file_info->modified_date = mz_zip_dosdate_to_time_t(dos_date);
249 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700250 if (err == MZ_OK)
251 err = mz_stream_read_uint32(stream, &file_info->crc);
Nathan Moinvaziricf4029d2020-12-02 18:07:01 -0800252#ifdef HAVE_PKCRYPT
Nathan Moinvaziri9ffb08e2020-11-30 21:30:10 -0800253 if (err == MZ_OK && file_info->flag & MZ_ZIP_FLAG_ENCRYPTED) {
Nathan Moinvaziri215a7a82020-12-13 10:58:41 -0800254 /* Use dos_date from header instead of derived from time in zip extensions */
255 file_info->pk_verify = mz_zip_get_pk_verify(dos_date, file_info->crc, file_info->flag);
Nathan Moinvaziri9ffb08e2020-11-30 21:30:10 -0800256 }
Nathan Moinvaziricf4029d2020-12-02 18:07:01 -0800257#endif
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700258 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700259 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvaziri2ecd8a02018-07-13 12:31:39 -0700260 file_info->compressed_size = value32;
261 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700262 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700263 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvaziri2ecd8a02018-07-13 12:31:39 -0700264 file_info->uncompressed_size = value32;
265 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700266 if (err == MZ_OK)
267 err = mz_stream_read_uint16(stream, &file_info->filename_size);
268 if (err == MZ_OK)
269 err = mz_stream_read_uint16(stream, &file_info->extrafield_size);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700270 if (!local) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700271 if (err == MZ_OK)
272 err = mz_stream_read_uint16(stream, &file_info->comment_size);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700273 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700274 err = mz_stream_read_uint16(stream, &value16);
Nathan Moinvaziri2ecd8a02018-07-13 12:31:39 -0700275 file_info->disk_number = value16;
276 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700277 if (err == MZ_OK)
278 err = mz_stream_read_uint16(stream, &file_info->internal_fa);
279 if (err == MZ_OK)
280 err = mz_stream_read_uint32(stream, &file_info->external_fa);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700281 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700282 err = mz_stream_read_uint32(stream, &value32);
Nathan Moinvaziri2ecd8a02018-07-13 12:31:39 -0700283 file_info->disk_offset = value32;
284 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700285 }
286 }
287
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700288 if (err == MZ_OK)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800289 err = mz_stream_seek(file_extra_stream, 0, MZ_SEEK_SET);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700290
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800291 /* Copy variable length data to memory stream for later retrieval */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700292 if ((err == MZ_OK) && (file_info->filename_size > 0))
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700293 err = mz_stream_copy(file_extra_stream, stream, file_info->filename_size);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800294 mz_stream_write_uint8(file_extra_stream, 0);
Nathan Moinvazirif9e34482018-11-27 09:45:09 -0800295 extrafield_pos = mz_stream_tell(file_extra_stream);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700296
Nathan Moinvaziri69e35492018-11-05 15:48:41 -0800297 if ((err == MZ_OK) && (file_info->extrafield_size > 0))
298 err = mz_stream_copy(file_extra_stream, stream, file_info->extrafield_size);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800299 mz_stream_write_uint8(file_extra_stream, 0);
Nathan Moinvaziri69e35492018-11-05 15:48:41 -0800300
Nathan Moinvazirif9e34482018-11-27 09:45:09 -0800301 comment_pos = mz_stream_tell(file_extra_stream);
Nathan Moinvaziri69e35492018-11-05 15:48:41 -0800302 if ((err == MZ_OK) && (file_info->comment_size > 0))
303 err = mz_stream_copy(file_extra_stream, stream, file_info->comment_size);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800304 mz_stream_write_uint8(file_extra_stream, 0);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700305
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700306 linkname_pos = mz_stream_tell(file_extra_stream);
307 /* Overwrite if we encounter UNIX1 extra block */
308 mz_stream_write_uint8(file_extra_stream, 0);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700309
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700310 if ((err == MZ_OK) && (file_info->extrafield_size > 0)) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800311 /* Seek to and parse the extra field */
Nathan Moinvaziri69e35492018-11-05 15:48:41 -0800312 err = mz_stream_seek(file_extra_stream, extrafield_pos, MZ_SEEK_SET);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700313
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700314 while ((err == MZ_OK) && (field_pos + 4 <= file_info->extrafield_size)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700315 err = mz_zip_extrafield_read(file_extra_stream, &field_type, &field_length);
Nathan Moinvaziriea2bd792018-11-19 17:44:44 -0800316 if (err != MZ_OK)
317 break;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800318 field_pos += 4;
Nathan Moinvazirifeb86c52018-11-05 11:40:21 -0800319
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800320 /* Don't allow field length to exceed size of remaining extrafield */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800321 if (field_length > (file_info->extrafield_size - field_pos))
Nathan Moinvaziri1d6d1832018-11-10 09:03:55 -0800322 field_length = (uint16_t)(file_info->extrafield_size - field_pos);
Nathan Moinvazirifeb86c52018-11-05 11:40:21 -0800323
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800324 /* Read ZIP64 extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700325 if ((field_type == MZ_ZIP_EXTENSION_ZIP64) && (field_length >= 8)) {
326 if ((err == MZ_OK) && (file_info->uncompressed_size == UINT32_MAX)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700327 err = mz_stream_read_int64(file_extra_stream, &file_info->uncompressed_size);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800328 if (file_info->uncompressed_size < 0)
329 err = MZ_FORMAT_ERROR;
330 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700331 if ((err == MZ_OK) && (file_info->compressed_size == UINT32_MAX)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700332 err = mz_stream_read_int64(file_extra_stream, &file_info->compressed_size);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800333 if (file_info->compressed_size < 0)
334 err = MZ_FORMAT_ERROR;
335 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700336 if ((err == MZ_OK) && (file_info->disk_offset == UINT32_MAX)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700337 err = mz_stream_read_int64(file_extra_stream, &file_info->disk_offset);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800338 if (file_info->disk_offset < 0)
339 err = MZ_FORMAT_ERROR;
340 }
juanii4ae79922018-02-11 14:29:36 -0300341 if ((err == MZ_OK) && (file_info->disk_number == UINT16_MAX))
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700342 err = mz_stream_read_uint32(file_extra_stream, &file_info->disk_number);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700343 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800344 /* Read NTFS extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700345 else if ((field_type == MZ_ZIP_EXTENSION_NTFS) && (field_length > 4)) {
Nathan Moinvaziri7a3b6982018-05-09 00:45:02 -0700346 if (err == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700347 err = mz_stream_read_uint32(file_extra_stream, &reserved);
348 field_length_read = 4;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700349
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700350 while ((err == MZ_OK) && (field_length_read + 4 <= field_length)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700351 err = mz_stream_read_uint16(file_extra_stream, &ntfs_attrib_id);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700352 if (err == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700353 err = mz_stream_read_uint16(file_extra_stream, &ntfs_attrib_size);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800354 field_length_read += 4;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700355
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700356 if ((err == MZ_OK) && (ntfs_attrib_id == 0x01) && (ntfs_attrib_size == 24)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700357 err = mz_stream_read_uint64(file_extra_stream, &ntfs_time);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700358 mz_zip_ntfs_to_unix_time(ntfs_time, &file_info->modified_date);
359
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700360 if (err == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700361 err = mz_stream_read_uint64(file_extra_stream, &ntfs_time);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700362 mz_zip_ntfs_to_unix_time(ntfs_time, &file_info->accessed_date);
363 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700364 if (err == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700365 err = mz_stream_read_uint64(file_extra_stream, &ntfs_time);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700366 mz_zip_ntfs_to_unix_time(ntfs_time, &file_info->creation_date);
367 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700368 } else if ((err == MZ_OK) && (field_length_read + ntfs_attrib_size <= field_length)) {
Nathan Moinvaziri60008442018-11-07 06:29:01 -0800369 err = mz_stream_seek(file_extra_stream, ntfs_attrib_size, MZ_SEEK_CUR);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700370 }
371
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800372 field_length_read += ntfs_attrib_size;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700373 }
374 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800375 /* Read UNIX1 extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700376 else if ((field_type == MZ_ZIP_EXTENSION_UNIX1) && (field_length >= 12)) {
377 if (err == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700378 err = mz_stream_read_uint32(file_extra_stream, &value32);
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700379 if (err == MZ_OK && file_info->accessed_date == 0)
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -0700380 file_info->accessed_date = value32;
381 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700382 if (err == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700383 err = mz_stream_read_uint32(file_extra_stream, &value32);
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700384 if (err == MZ_OK && file_info->modified_date == 0)
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -0700385 file_info->modified_date = value32;
386 }
387 if (err == MZ_OK)
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800388 err = mz_stream_read_uint16(file_extra_stream, &value16); /* User id */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -0700389 if (err == MZ_OK)
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800390 err = mz_stream_read_uint16(file_extra_stream, &value16); /* Group id */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -0700391
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700392 /* Copy linkname to end of file extra stream so we can return null
393 terminated string */
394 linkname_size = field_length - 12;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700395 if ((err == MZ_OK) && (linkname_size > 0)) {
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700396 linkname = (char *)MZ_ALLOC(linkname_size);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700397 if (linkname != NULL) {
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700398 if (mz_stream_read(file_extra_stream, linkname, linkname_size) != linkname_size)
399 err = MZ_READ_ERROR;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700400 if (err == MZ_OK) {
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700401 saved_pos = mz_stream_tell(file_extra_stream);
402
403 mz_stream_seek(file_extra_stream, linkname_pos, MZ_SEEK_SET);
404 mz_stream_write(file_extra_stream, linkname, linkname_size);
405 mz_stream_write_uint8(file_extra_stream, 0);
406
407 mz_stream_seek(file_extra_stream, saved_pos, MZ_SEEK_SET);
408 }
409 MZ_FREE(linkname);
410 }
411 }
Nathan Moinvaziri413822a2018-10-20 09:45:07 -0700412 }
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -0800413#ifdef HAVE_WZAES
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800414 /* Read AES extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700415 else if ((field_type == MZ_ZIP_EXTENSION_AES) && (field_length == 7)) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700416 uint8_t value8 = 0;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800417 /* Verify version info */
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700418 err = mz_stream_read_uint16(file_extra_stream, &value16);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800419 /* Support AE-1 and AE-2 */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700420 if (value16 != 1 && value16 != 2)
421 err = MZ_FORMAT_ERROR;
422 file_info->aes_version = value16;
423 if (err == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700424 err = mz_stream_read_uint8(file_extra_stream, &value8);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700425 if ((char)value8 != 'A')
426 err = MZ_FORMAT_ERROR;
427 if (err == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700428 err = mz_stream_read_uint8(file_extra_stream, &value8);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700429 if ((char)value8 != 'E')
430 err = MZ_FORMAT_ERROR;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800431 /* Get AES encryption strength and actual compression method */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700432 if (err == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700433 err = mz_stream_read_uint8(file_extra_stream, &value8);
Nathan Moinvaziri2ecd8a02018-07-13 12:31:39 -0700434 file_info->aes_encryption_mode = value8;
435 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700436 if (err == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700437 err = mz_stream_read_uint16(file_extra_stream, &value16);
Nathan Moinvaziri2ecd8a02018-07-13 12:31:39 -0700438 file_info->compression_method = value16;
439 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700440 }
441#endif
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700442 else if (field_length > 0) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700443 err = mz_stream_seek(file_extra_stream, field_length, MZ_SEEK_CUR);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700444 }
445
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800446 field_pos += field_length;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700447 }
448 }
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700449
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800450 /* Get pointers to variable length data */
Nathan Moinvaziri60008442018-11-07 06:29:01 -0800451 mz_stream_mem_get_buffer(file_extra_stream, (const void **)&file_info->filename);
Nathan Moinvazirif9e34482018-11-27 09:45:09 -0800452 mz_stream_mem_get_buffer_at(file_extra_stream, extrafield_pos, (const void **)&file_info->extrafield);
453 mz_stream_mem_get_buffer_at(file_extra_stream, comment_pos, (const void **)&file_info->comment);
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700454 mz_stream_mem_get_buffer_at(file_extra_stream, linkname_pos, (const void **)&file_info->linkname);
Nathan Moinvaziri60008442018-11-07 06:29:01 -0800455
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800456 /* Set to empty string just in-case */
Nathan Moinvaziri60008442018-11-07 06:29:01 -0800457 if (file_info->filename == NULL)
458 file_info->filename = "";
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800459 if (file_info->extrafield == NULL)
460 file_info->extrafield_size = 0;
Nathan Moinvaziri60008442018-11-07 06:29:01 -0800461 if (file_info->comment == NULL)
462 file_info->comment = "";
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700463 if (file_info->linkname == NULL)
464 file_info->linkname = "";
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700465
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700466 if (err == MZ_OK) {
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -0700467 mz_zip_print("Zip - Entry - Read header - %s (local %" PRId8 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800468 file_info->filename, local);
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -0700469 mz_zip_print("Zip - Entry - Read header compress (ucs %" PRId64 " cs %" PRId64 " crc 0x%08" PRIx32 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800470 file_info->uncompressed_size, file_info->compressed_size, file_info->crc);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700471 if (!local) {
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -0700472 mz_zip_print("Zip - Entry - Read header disk (disk %" PRIu32 " offset %" PRId64 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800473 file_info->disk_number, file_info->disk_offset);
Nathan Moinvaziria93a2ad2018-11-13 17:51:42 -0800474 }
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -0700475 mz_zip_print("Zip - Entry - Read header variable (fnl %" PRId32 " efs %" PRId32 " cms %" PRId32 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800476 file_info->filename_size, file_info->extrafield_size, file_info->comment_size);
477 }
478
479 return err;
480}
481
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700482static int32_t mz_zip_entry_read_descriptor(void *stream, uint8_t zip64, uint32_t *crc32, int64_t *compressed_size, int64_t *uncompressed_size) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800483 uint32_t value32 = 0;
484 int64_t value64 = 0;
485 int32_t err = MZ_OK;
486
487
488 err = mz_stream_read_uint32(stream, &value32);
489 if (value32 != MZ_ZIP_MAGIC_DATADESCRIPTOR)
490 err = MZ_FORMAT_ERROR;
491 if (err == MZ_OK)
492 err = mz_stream_read_uint32(stream, &value32);
493 if ((err == MZ_OK) && (crc32 != NULL))
494 *crc32 = value32;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700495 if (err == MZ_OK) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800496 /* If zip 64 extension is enabled then read as 8 byte */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700497 if (!zip64) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800498 err = mz_stream_read_uint32(stream, &value32);
499 value64 = value32;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700500 } else {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800501 err = mz_stream_read_int64(stream, &value64);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800502 if (value64 < 0)
503 err = MZ_FORMAT_ERROR;
504 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800505 if ((err == MZ_OK) && (compressed_size != NULL))
506 *compressed_size = value64;
507 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700508 if (err == MZ_OK) {
509 if (!zip64) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800510 err = mz_stream_read_uint32(stream, &value32);
511 value64 = value32;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700512 } else {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800513 err = mz_stream_read_int64(stream, &value64);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800514 if (value64 < 0)
515 err = MZ_FORMAT_ERROR;
516 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800517 if ((err == MZ_OK) && (uncompressed_size != NULL))
518 *uncompressed_size = value64;
519 }
520
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700521 return err;
522}
523
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700524static int32_t mz_zip_entry_write_crc_sizes(void *stream, uint8_t mask, mz_zip_file *file_info) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -0800525 int32_t err = MZ_OK;
526
527 if (mask)
528 err = mz_stream_write_uint32(stream, 0);
529 else
530 err = mz_stream_write_uint32(stream, file_info->crc); /* crc */
531
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700532 if (err == MZ_OK) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -0800533 if (file_info->compressed_size >= UINT32_MAX) /* compr size */
534 err = mz_stream_write_uint32(stream, UINT32_MAX);
535 else
536 err = mz_stream_write_uint32(stream, (uint32_t)file_info->compressed_size);
537 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700538 if (err == MZ_OK) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -0800539 if (file_info->uncompressed_size >= UINT32_MAX) /* uncompr size */
540 err = mz_stream_write_uint32(stream, UINT32_MAX);
541 else if (mask)
542 err = mz_stream_write_uint32(stream, 0);
543 else
544 err = mz_stream_write_uint32(stream, (uint32_t)file_info->uncompressed_size);
545 }
546 return err;
547}
548
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700549static int32_t mz_zip_entry_write_header(void *stream, uint8_t local, mz_zip_file *file_info) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700550 uint64_t ntfs_time = 0;
551 uint32_t reserved = 0;
552 uint32_t dos_date = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700553 uint16_t extrafield_size = 0;
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700554 uint16_t field_type = 0;
555 uint16_t field_length = 0;
556 uint16_t field_length_zip64 = 0;
557 uint16_t field_length_ntfs = 0;
558 uint16_t field_length_aes = 0;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700559 uint16_t field_length_unix1 = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700560 uint16_t filename_size = 0;
Nathan Moinvaziri3ad1a922018-05-02 13:04:41 -0700561 uint16_t filename_length = 0;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700562 uint16_t linkname_size = 0;
Nathan Moinvaziri46f71432018-05-03 17:24:32 -0700563 uint16_t version_needed = 0;
Nathan Moinvaziridd103f42018-11-13 14:50:32 -0800564 int32_t comment_size = 0;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700565 int32_t err = MZ_OK;
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700566 int32_t err_mem = MZ_OK;
567 uint8_t zip64 = 0;
568 uint8_t skip_aes = 0;
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700569 uint8_t mask = 0;
570 uint8_t write_end_slash = 0;
571 const char *filename = NULL;
Nathan Moinvazirifa620e42018-10-20 10:37:10 -0700572 char masked_name[64];
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700573 void *file_extra_stream = NULL;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700574
575 if (file_info == NULL)
576 return MZ_PARAM_ERROR;
577
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700578 if ((local) && (file_info->flag & MZ_ZIP_FLAG_MASK_LOCAL_INFO))
579 mask = 1;
580
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800581 /* Calculate extra field sizes */
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700582 if (file_info->uncompressed_size >= UINT32_MAX)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700583 field_length_zip64 += 8;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700584 if (file_info->compressed_size >= UINT32_MAX)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700585 field_length_zip64 += 8;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700586 if (file_info->disk_offset >= UINT32_MAX)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700587 field_length_zip64 += 8;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700588
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700589 if (file_info->zip64 == MZ_ZIP64_AUTO) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800590 /* If uncompressed size is unknown, assume zip64 for 64-bit data descriptors */
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700591 zip64 = (local && file_info->uncompressed_size == 0) || (field_length_zip64 > 0);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700592 } else if (file_info->zip64 == MZ_ZIP64_FORCE) {
Nathan Moinvaziria56a08c2018-05-03 09:35:37 -0700593 zip64 = 1;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700594 } else if (file_info->zip64 == MZ_ZIP64_DISABLE) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800595 /* Zip64 extension is required to zip file */
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700596 if (field_length_zip64 > 0)
Nathan Moinvaziri46f71432018-05-03 17:24:32 -0700597 return MZ_PARAM_ERROR;
Nathan Moinvaziria56a08c2018-05-03 09:35:37 -0700598 }
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -0700599
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700600 if (zip64) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700601 extrafield_size += 4;
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700602 extrafield_size += field_length_zip64;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700603 }
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700604
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800605 /* Calculate extra field size and check for duplicates */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700606 if (file_info->extrafield_size > 0) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700607 mz_stream_mem_create(&file_extra_stream);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700608 mz_stream_mem_set_buffer(file_extra_stream, (void *)file_info->extrafield,
Nathan Moinvaziri915c5132018-10-26 20:00:52 -0700609 file_info->extrafield_size);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700610
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700611 do {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700612 err_mem = mz_stream_read_uint16(file_extra_stream, &field_type);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700613 if (err_mem == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700614 err_mem = mz_stream_read_uint16(file_extra_stream, &field_length);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700615 if (err_mem != MZ_OK)
616 break;
617
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800618 /* Prefer incoming aes extensions over ours */
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700619 if (field_type == MZ_ZIP_EXTENSION_AES)
620 skip_aes = 1;
621
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700622 /* Prefer our zip64, ntfs, unix1 extension over incoming */
623 if (field_type != MZ_ZIP_EXTENSION_ZIP64 && field_type != MZ_ZIP_EXTENSION_NTFS &&
624 field_type != MZ_ZIP_EXTENSION_UNIX1)
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700625 extrafield_size += 4 + field_length;
626
627 if (err_mem == MZ_OK)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800628 err_mem = mz_stream_seek(file_extra_stream, field_length, MZ_SEEK_CUR);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700629 } while (err_mem == MZ_OK);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700630 }
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700631
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -0800632#ifdef HAVE_WZAES
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700633 if (!skip_aes) {
634 if ((file_info->flag & MZ_ZIP_FLAG_ENCRYPTED) && (file_info->aes_version)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700635 field_length_aes = 1 + 1 + 1 + 2 + 2;
636 extrafield_size += 4 + field_length_aes;
Nathan Moinvaziri413822a2018-10-20 09:45:07 -0700637 }
638 }
Nathan Moinvaziria2bb08c2018-10-28 13:45:30 -0700639#else
Nathan Moinvaziri7de94cf2018-11-19 20:51:06 -0800640 MZ_UNUSED(field_length_aes);
Nathan Moinvaziri4ae469a2018-10-28 15:32:04 -0700641 MZ_UNUSED(skip_aes);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700642#endif
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800643 /* NTFS timestamps */
Nathan Moinvazirid9e159a2018-02-13 15:30:30 -0800644 if ((file_info->modified_date != 0) &&
645 (file_info->accessed_date != 0) &&
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700646 (file_info->creation_date != 0) && (!mask)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700647 field_length_ntfs = 8 + 8 + 8 + 4 + 2 + 2;
648 extrafield_size += 4 + field_length_ntfs;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700649 }
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700650
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700651 /* Unix1 symbolic links */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700652 if (file_info->linkname != NULL && *file_info->linkname != 0) {
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700653 linkname_size = (uint16_t)strlen(file_info->linkname);
654 field_length_unix1 = 12 + linkname_size;
655 extrafield_size += 4 + field_length_unix1;
656 }
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -0700657
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700658 if (local)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700659 err = mz_stream_write_uint32(stream, MZ_ZIP_MAGIC_LOCALHEADER);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700660 else {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700661 err = mz_stream_write_uint32(stream, MZ_ZIP_MAGIC_CENTRALHEADER);
662 if (err == MZ_OK)
663 err = mz_stream_write_uint16(stream, file_info->version_madeby);
664 }
665
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800666 /* Calculate version needed to extract */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700667 if (err == MZ_OK) {
Nathan Moinvaziri46f71432018-05-03 17:24:32 -0700668 version_needed = file_info->version_needed;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700669 if (version_needed == 0) {
Nathan Moinvaziri46f71432018-05-03 17:24:32 -0700670 version_needed = 20;
671 if (zip64)
672 version_needed = 45;
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -0800673#ifdef HAVE_WZAES
Nathan Moinvaziri46f71432018-05-03 17:24:32 -0700674 if ((file_info->flag & MZ_ZIP_FLAG_ENCRYPTED) && (file_info->aes_version))
675 version_needed = 51;
676#endif
Nathan Moinvaziri1a7e7e42020-10-25 14:50:53 -0700677#if defined(HAVE_LZMA) || defined(HAVE_LIBCOMP)
Nathan Moinvaziric4668ed2020-10-25 11:56:19 -0700678 if ((file_info->compression_method == MZ_COMPRESS_METHOD_LZMA) ||
679 (file_info->compression_method == MZ_COMPRESS_METHOD_XZ))
Nathan Moinvaziri46f71432018-05-03 17:24:32 -0700680 version_needed = 63;
681#endif
682 }
683 err = mz_stream_write_uint16(stream, version_needed);
684 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700685 if (err == MZ_OK)
686 err = mz_stream_write_uint16(stream, file_info->flag);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700687 if (err == MZ_OK) {
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -0800688#ifdef HAVE_WZAES
Nathan Moinvaziri413822a2018-10-20 09:45:07 -0700689 if ((file_info->flag & MZ_ZIP_FLAG_ENCRYPTED) && (file_info->aes_version))
Nathan Moinvaziri6e21e862017-10-19 09:57:54 -0700690 err = mz_stream_write_uint16(stream, MZ_COMPRESS_METHOD_AES);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700691 else
692#endif
693 err = mz_stream_write_uint16(stream, file_info->compression_method);
694 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700695 if (err == MZ_OK) {
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700696 if (file_info->modified_date != 0 && !mask)
Nathan Moinvaziri17cdaec2017-10-26 10:18:41 -0700697 dos_date = mz_zip_time_t_to_dos_date(file_info->modified_date);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700698 err = mz_stream_write_uint32(stream, dos_date);
699 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700700
701 if (err == MZ_OK)
Nathan Moinvazirid7e6aa02020-02-12 08:31:21 -0800702 err = mz_zip_entry_write_crc_sizes(stream, mask, file_info);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700703
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700704 if (mask) {
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -0700705 snprintf(masked_name, sizeof(masked_name), "%" PRIx32 "_%" PRIx64,
Nathan Moinvaziri264dc182018-11-13 17:42:13 -0800706 file_info->disk_number, file_info->disk_offset);
Nathan Moinvazirifa620e42018-10-20 10:37:10 -0700707 filename = masked_name;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700708 } else {
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700709 filename = file_info->filename;
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700710 }
711
712 filename_length = (uint16_t)strlen(filename);
713 filename_size += filename_length;
714
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800715 if ((mz_zip_attrib_is_dir(file_info->external_fa, file_info->version_madeby) == MZ_OK) &&
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700716 ((filename[filename_length - 1] != '/') && (filename[filename_length - 1] != '\\'))) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800717 filename_size += 1;
718 write_end_slash = 1;
719 }
720
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700721 if (err == MZ_OK)
722 err = mz_stream_write_uint16(stream, filename_size);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700723 if (err == MZ_OK)
724 err = mz_stream_write_uint16(stream, extrafield_size);
725
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700726 if (!local) {
727 if (file_info->comment != NULL) {
Nathan Moinvaziridd103f42018-11-13 14:50:32 -0800728 comment_size = (int32_t)strlen(file_info->comment);
729 if (comment_size > UINT16_MAX)
730 comment_size = UINT16_MAX;
731 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700732 if (err == MZ_OK)
Nathan Moinvaziridd103f42018-11-13 14:50:32 -0800733 err = mz_stream_write_uint16(stream, (uint16_t)comment_size);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700734 if (err == MZ_OK)
Nathan Moinvazirifd039e32017-10-22 14:40:39 -0700735 err = mz_stream_write_uint16(stream, (uint16_t)file_info->disk_number);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700736 if (err == MZ_OK)
737 err = mz_stream_write_uint16(stream, file_info->internal_fa);
738 if (err == MZ_OK)
739 err = mz_stream_write_uint32(stream, file_info->external_fa);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700740 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700741 if (file_info->disk_offset >= UINT32_MAX)
742 err = mz_stream_write_uint32(stream, UINT32_MAX);
743 else
744 err = mz_stream_write_uint32(stream, (uint32_t)file_info->disk_offset);
745 }
746 }
747
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700748 if (err == MZ_OK) {
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700749 if (mz_stream_write(stream, filename, filename_length) != filename_length)
Nathan Moinvaziri05e03ca2018-10-28 16:15:13 -0700750 err = MZ_WRITE_ERROR;
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700751
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800752 /* Ensure that directories have a slash appended to them for compatibility */
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700753 if (err == MZ_OK && write_end_slash)
754 err = mz_stream_write_uint8(stream, '/');
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700755 }
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700756
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700757 if (file_info->extrafield_size > 0) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800758 err_mem = mz_stream_mem_seek(file_extra_stream, 0, MZ_SEEK_SET);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700759 while (err == MZ_OK && err_mem == MZ_OK) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700760 err_mem = mz_stream_read_uint16(file_extra_stream, &field_type);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700761 if (err_mem == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700762 err_mem = mz_stream_read_uint16(file_extra_stream, &field_length);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700763 if (err_mem != MZ_OK)
764 break;
765
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700766 /* Prefer our zip 64, ntfs, unix1 extensions over incoming */
767 if (field_type == MZ_ZIP_EXTENSION_ZIP64 || field_type == MZ_ZIP_EXTENSION_NTFS ||
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700768 field_type == MZ_ZIP_EXTENSION_UNIX1) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800769 err_mem = mz_stream_seek(file_extra_stream, field_length, MZ_SEEK_CUR);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700770 continue;
771 }
772
773 err = mz_stream_write_uint16(stream, field_type);
774 if (err == MZ_OK)
775 err = mz_stream_write_uint16(stream, field_length);
776 if (err == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700777 err = mz_stream_copy(stream, file_extra_stream, field_length);
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700778 }
779
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700780 mz_stream_mem_delete(&file_extra_stream);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700781 }
Nathan Moinvaziri298126a2018-07-31 10:19:48 -0700782
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800783 /* Write ZIP64 extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700784 if ((err == MZ_OK) && (zip64)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700785 err = mz_zip_extrafield_write(stream, MZ_ZIP_EXTENSION_ZIP64, field_length_zip64);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700786 if ((err == MZ_OK) && (file_info->uncompressed_size >= UINT32_MAX)) {
Nathan Moinvaziric565fa82018-10-19 08:48:33 -0700787 if (mask)
788 err = mz_stream_write_int64(stream, 0);
789 else
790 err = mz_stream_write_int64(stream, file_info->uncompressed_size);
791 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700792 if ((err == MZ_OK) && (file_info->compressed_size >= UINT32_MAX))
Nathan Moinvaziri904c4082018-10-08 23:31:21 -0700793 err = mz_stream_write_int64(stream, file_info->compressed_size);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700794 if ((err == MZ_OK) && (file_info->disk_offset >= UINT32_MAX))
Nathan Moinvaziri904c4082018-10-08 23:31:21 -0700795 err = mz_stream_write_int64(stream, file_info->disk_offset);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700796 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800797 /* Write NTFS extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700798 if ((err == MZ_OK) && (field_length_ntfs > 0)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700799 err = mz_zip_extrafield_write(stream, MZ_ZIP_EXTENSION_NTFS, field_length_ntfs);
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700800 if (err == MZ_OK)
801 err = mz_stream_write_uint32(stream, reserved);
802 if (err == MZ_OK)
803 err = mz_stream_write_uint16(stream, 0x01);
804 if (err == MZ_OK)
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700805 err = mz_stream_write_uint16(stream, field_length_ntfs - 8);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700806 if (err == MZ_OK) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700807 mz_zip_unix_to_ntfs_time(file_info->modified_date, &ntfs_time);
808 err = mz_stream_write_uint64(stream, ntfs_time);
809 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700810 if (err == MZ_OK) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700811 mz_zip_unix_to_ntfs_time(file_info->accessed_date, &ntfs_time);
812 err = mz_stream_write_uint64(stream, ntfs_time);
813 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700814 if (err == MZ_OK) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -0700815 mz_zip_unix_to_ntfs_time(file_info->creation_date, &ntfs_time);
816 err = mz_stream_write_uint64(stream, ntfs_time);
817 }
818 }
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700819 /* Write UNIX extra block extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700820 if ((err == MZ_OK) && (field_length_unix1 > 0)) {
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700821 err = mz_zip_extrafield_write(stream, MZ_ZIP_EXTENSION_UNIX1, field_length_unix1);
822 if (err == MZ_OK)
Nathan Moinvaziriaeb6cdd2019-05-06 13:40:32 -0700823 err = mz_stream_write_uint32(stream, (uint32_t)file_info->accessed_date);
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700824 if (err == MZ_OK)
Nathan Moinvaziriaeb6cdd2019-05-06 13:40:32 -0700825 err = mz_stream_write_uint32(stream, (uint32_t)file_info->modified_date);
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700826 if (err == MZ_OK) /* User id */
827 err = mz_stream_write_uint16(stream, 0);
828 if (err == MZ_OK) /* Group id */
829 err = mz_stream_write_uint16(stream, 0);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700830 if (err == MZ_OK && linkname_size > 0) {
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -0700831 if (mz_stream_write(stream, file_info->linkname, linkname_size) != linkname_size)
832 err = MZ_WRITE_ERROR;
833 }
834 }
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -0800835#ifdef HAVE_WZAES
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800836 /* Write AES extra field */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700837 if ((err == MZ_OK) && (!skip_aes) && (file_info->flag & MZ_ZIP_FLAG_ENCRYPTED) && (file_info->aes_version)) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -0700838 err = mz_zip_extrafield_write(stream, MZ_ZIP_EXTENSION_AES, field_length_aes);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700839 if (err == MZ_OK)
840 err = mz_stream_write_uint16(stream, file_info->aes_version);
841 if (err == MZ_OK)
842 err = mz_stream_write_uint8(stream, 'A');
843 if (err == MZ_OK)
844 err = mz_stream_write_uint8(stream, 'E');
845 if (err == MZ_OK)
846 err = mz_stream_write_uint8(stream, file_info->aes_encryption_mode);
847 if (err == MZ_OK)
848 err = mz_stream_write_uint16(stream, file_info->compression_method);
849 }
850#endif
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700851 if ((err == MZ_OK) && (!local) && (file_info->comment != NULL)) {
Nathan Moinvazirica014e62018-08-15 07:31:12 -0700852 if (mz_stream_write(stream, file_info->comment, file_info->comment_size) != file_info->comment_size)
Nathan Moinvaziri05e03ca2018-10-28 16:15:13 -0700853 err = MZ_WRITE_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -0700854 }
855
856 return err;
857}
858
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700859static int32_t mz_zip_entry_write_descriptor(void *stream, uint8_t zip64, uint32_t crc32, int64_t compressed_size, int64_t uncompressed_size) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800860 int32_t err = MZ_OK;
861
862 err = mz_stream_write_uint32(stream, MZ_ZIP_MAGIC_DATADESCRIPTOR);
863 if (err == MZ_OK)
864 err = mz_stream_write_uint32(stream, crc32);
865
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800866 /* Store data descriptor as 8 bytes if zip 64 extension enabled */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700867 if (err == MZ_OK) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800868 /* Zip 64 extension is enabled when uncompressed size is > UINT32_MAX */
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800869 if (!zip64)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800870 err = mz_stream_write_uint32(stream, (uint32_t)compressed_size);
871 else
872 err = mz_stream_write_int64(stream, compressed_size);
873 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700874 if (err == MZ_OK) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800875 if (!zip64)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800876 err = mz_stream_write_uint32(stream, (uint32_t)uncompressed_size);
877 else
878 err = mz_stream_write_int64(stream, uncompressed_size);
879 }
880
881 return err;
882}
883
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700884static int32_t mz_zip_read_cd(void *handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800885 mz_zip *zip = (mz_zip *)handle;
886 uint64_t number_entry_cd64 = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800887 uint64_t number_entry_cd = 0;
888 int64_t eocd_pos = 0;
889 int64_t eocd_pos64 = 0;
890 int64_t value64i = 0;
891 uint16_t value16 = 0;
892 uint32_t value32 = 0;
893 uint64_t value64 = 0;
894 uint16_t comment_size = 0;
895 int32_t comment_read = 0;
896 int32_t err = MZ_OK;
897
898
899 if (zip == NULL)
900 return MZ_PARAM_ERROR;
901
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800902 /* Read and cache central directory records */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800903 err = mz_zip_search_eocd(zip->stream, &eocd_pos);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700904 if (err == MZ_OK) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800905 /* The signature, already checked */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800906 err = mz_stream_read_uint32(zip->stream, &value32);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800907 /* Number of this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800908 if (err == MZ_OK)
909 err = mz_stream_read_uint16(zip->stream, &value16);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800910 /* Number of the disk with the start of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800911 if (err == MZ_OK)
912 err = mz_stream_read_uint16(zip->stream, &value16);
913 zip->disk_number_with_cd = value16;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800914 /* Total number of entries in the central dir on this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800915 if (err == MZ_OK)
916 err = mz_stream_read_uint16(zip->stream, &value16);
917 zip->number_entry = value16;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800918 /* Total number of entries in the central dir */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800919 if (err == MZ_OK)
920 err = mz_stream_read_uint16(zip->stream, &value16);
921 number_entry_cd = value16;
922 if (number_entry_cd != zip->number_entry)
923 err = MZ_FORMAT_ERROR;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800924 /* Size of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800925 if (err == MZ_OK)
926 err = mz_stream_read_uint32(zip->stream, &value32);
927 if (err == MZ_OK)
928 zip->cd_size = value32;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800929 /* Offset of start of central directory with respect to the starting disk number */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800930 if (err == MZ_OK)
931 err = mz_stream_read_uint32(zip->stream, &value32);
932 if (err == MZ_OK)
933 zip->cd_offset = value32;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800934 /* Zip file global comment length */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800935 if (err == MZ_OK)
936 err = mz_stream_read_uint16(zip->stream, &comment_size);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700937 if ((err == MZ_OK) && (comment_size > 0)) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800938 zip->comment = (char *)MZ_ALLOC(comment_size + 1);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700939 if (zip->comment != NULL) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800940 comment_read = mz_stream_read(zip->stream, zip->comment, comment_size);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800941 /* Don't fail if incorrect comment length read, not critical */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800942 if (comment_read < 0)
943 comment_read = 0;
944 zip->comment[comment_read] = 0;
945 }
946 }
947
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700948 if ((err == MZ_OK) && ((number_entry_cd == UINT16_MAX) || (zip->cd_offset == UINT32_MAX))) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800949 /* Format should be Zip64, as the central directory or file size is too large */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700950 if (mz_zip_search_zip64_eocd(zip->stream, eocd_pos, &eocd_pos64) == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800951 eocd_pos = eocd_pos64;
952
953 err = mz_stream_seek(zip->stream, eocd_pos, MZ_SEEK_SET);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800954 /* The signature, already checked */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800955 if (err == MZ_OK)
956 err = mz_stream_read_uint32(zip->stream, &value32);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800957 /* Size of zip64 end of central directory record */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800958 if (err == MZ_OK)
959 err = mz_stream_read_uint64(zip->stream, &value64);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800960 /* Version made by */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800961 if (err == MZ_OK)
962 err = mz_stream_read_uint16(zip->stream, &zip->version_madeby);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800963 /* Version needed to extract */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800964 if (err == MZ_OK)
965 err = mz_stream_read_uint16(zip->stream, &value16);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800966 /* Number of this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800967 if (err == MZ_OK)
968 err = mz_stream_read_uint32(zip->stream, &value32);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800969 /* Number of the disk with the start of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800970 if (err == MZ_OK)
971 err = mz_stream_read_uint32(zip->stream, &zip->disk_number_with_cd);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800972 /* Total number of entries in the central directory on this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800973 if (err == MZ_OK)
Gabriel Dubois3b3961e2020-03-20 15:48:40 +0000974 err = mz_stream_read_uint64(zip->stream, &zip->number_entry);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800975 /* Total number of entries in the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800976 if (err == MZ_OK)
977 err = mz_stream_read_uint64(zip->stream, &number_entry_cd64);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700978 if (zip->number_entry != number_entry_cd64)
Gabriel Dubois3b3961e2020-03-20 15:48:40 +0000979 err = MZ_FORMAT_ERROR;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800980 /* Size of the central directory */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700981 if (err == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800982 err = mz_stream_read_int64(zip->stream, &zip->cd_size);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800983 if (zip->cd_size < 0)
984 err = MZ_FORMAT_ERROR;
985 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -0800986 /* Offset of start of central directory with respect to the starting disk number */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700987 if (err == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800988 err = mz_stream_read_int64(zip->stream, &zip->cd_offset);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -0800989 if (zip->cd_offset < 0)
990 err = MZ_FORMAT_ERROR;
991 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700992 } else if ((zip->number_entry == UINT16_MAX) || (number_entry_cd != zip->number_entry) ||
993 (zip->cd_size == UINT16_MAX) || (zip->cd_offset == UINT32_MAX)) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -0800994 err = MZ_FORMAT_ERROR;
995 }
996 }
997 }
998
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -0700999 if (err == MZ_OK) {
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07001000 mz_zip_print("Zip - Read cd (disk %" PRId32 " entries %" PRId64 " offset %" PRId64 " size %" PRId64 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001001 zip->disk_number_with_cd, zip->number_entry, zip->cd_offset, zip->cd_size);
1002
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001003 /* Verify central directory signature exists at offset */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001004 err = mz_stream_seek(zip->stream, zip->cd_offset, MZ_SEEK_SET);
1005 if (err == MZ_OK)
Nathan Moinvaziri0e1fd892019-09-28 20:55:37 -07001006 err = mz_stream_read_uint32(zip->stream, &zip->cd_signature);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001007 if ((err == MZ_OK) && (zip->cd_signature != MZ_ZIP_MAGIC_CENTRALHEADER)) {
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001008 /* If cd exists in large file and no zip-64 support, error for recover */
1009 if (eocd_pos > UINT32_MAX && eocd_pos64 == 0)
1010 err = MZ_FORMAT_ERROR;
Nathan Moinvaziri0e1fd892019-09-28 20:55:37 -07001011 /* If cd not found attempt to seek backward to find it */
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001012 if (err == MZ_OK)
1013 err = mz_stream_seek(zip->stream, eocd_pos - zip->cd_size, MZ_SEEK_SET);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001014 if (err == MZ_OK)
Nathan Moinvaziri0e1fd892019-09-28 20:55:37 -07001015 err = mz_stream_read_uint32(zip->stream, &zip->cd_signature);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001016 if ((err == MZ_OK) && (zip->cd_signature == MZ_ZIP_MAGIC_CENTRALHEADER)) {
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001017
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001018 /* If found compensate for incorrect locations */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001019 value64i = zip->cd_offset;
1020 zip->cd_offset = eocd_pos - zip->cd_size;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001021 /* Assume disk has prepended data */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001022 zip->disk_offset_shift = zip->cd_offset - value64i;
1023 }
1024 }
1025 }
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001026
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001027 if (err == MZ_OK) {
1028 if (eocd_pos < zip->cd_offset) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001029 /* End of central dir should always come after central dir */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001030 err = MZ_FORMAT_ERROR;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001031 } else if (eocd_pos < zip->cd_offset + zip->cd_size) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001032 /* Truncate size of cd if incorrect size or offset provided */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001033 zip->cd_size = eocd_pos - zip->cd_offset;
1034 }
1035 }
1036
1037 return err;
1038}
1039
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001040static int32_t mz_zip_write_cd(void *handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001041 mz_zip *zip = (mz_zip *)handle;
1042 int64_t zip64_eocd_pos_inzip = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001043 int64_t disk_number = 0;
1044 int64_t disk_size = 0;
Nathan Moinvaziridd103f42018-11-13 14:50:32 -08001045 int32_t comment_size = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001046 int32_t err = MZ_OK;
1047
1048
1049 if (zip == NULL)
1050 return MZ_PARAM_ERROR;
1051
1052 if (mz_stream_get_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, &disk_number) == MZ_OK)
1053 zip->disk_number_with_cd = (uint32_t)disk_number;
1054 if (mz_stream_get_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_SIZE, &disk_size) == MZ_OK && disk_size > 0)
1055 zip->disk_number_with_cd += 1;
1056 mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, -1);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001057 if ((zip->disk_number_with_cd > 0) && (zip->open_mode & MZ_OPEN_MODE_APPEND)) {
Nathan Moinvazirif286b832019-11-10 17:09:48 -08001058 // Overwrite existing central directory if using split disks
1059 mz_stream_seek(zip->stream, 0, MZ_SEEK_SET);
1060 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001061
1062 zip->cd_offset = mz_stream_tell(zip->stream);
1063 mz_stream_seek(zip->cd_mem_stream, 0, MZ_SEEK_END);
1064 zip->cd_size = (uint32_t)mz_stream_tell(zip->cd_mem_stream);
1065 mz_stream_seek(zip->cd_mem_stream, 0, MZ_SEEK_SET);
1066
1067 err = mz_stream_copy(zip->stream, zip->cd_mem_stream, (int32_t)zip->cd_size);
1068
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07001069 mz_zip_print("Zip - Write cd (disk %" PRId32 " entries %" PRId64 " offset %" PRId64 " size %" PRId64 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001070 zip->disk_number_with_cd, zip->number_entry, zip->cd_offset, zip->cd_size);
1071
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001072 if (zip->cd_size == 0 && zip->number_entry > 0) {
Nathan Moinvaziri64faa252019-04-21 21:38:48 -07001073 // Zip does not contain central directory, open with recovery option
1074 return MZ_FORMAT_ERROR;
1075 }
1076
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001077 /* Write the ZIP64 central directory header */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001078 if (zip->cd_offset >= UINT32_MAX || zip->number_entry > UINT16_MAX) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001079 zip64_eocd_pos_inzip = mz_stream_tell(zip->stream);
1080
1081 err = mz_stream_write_uint32(zip->stream, MZ_ZIP_MAGIC_ENDHEADER64);
1082
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001083 /* Size of this 'zip64 end of central directory' */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001084 if (err == MZ_OK)
1085 err = mz_stream_write_uint64(zip->stream, (uint64_t)44);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001086 /* Version made by */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001087 if (err == MZ_OK)
1088 err = mz_stream_write_uint16(zip->stream, zip->version_madeby);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001089 /* Version needed */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001090 if (err == MZ_OK)
1091 err = mz_stream_write_uint16(zip->stream, (uint16_t)45);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001092 /* Number of this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001093 if (err == MZ_OK)
1094 err = mz_stream_write_uint32(zip->stream, zip->disk_number_with_cd);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001095 /* Number of the disk with the start of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001096 if (err == MZ_OK)
1097 err = mz_stream_write_uint32(zip->stream, zip->disk_number_with_cd);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001098 /* Total number of entries in the central dir on this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001099 if (err == MZ_OK)
1100 err = mz_stream_write_uint64(zip->stream, zip->number_entry);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001101 /* Total number of entries in the central dir */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001102 if (err == MZ_OK)
1103 err = mz_stream_write_uint64(zip->stream, zip->number_entry);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001104 /* Size of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001105 if (err == MZ_OK)
1106 err = mz_stream_write_int64(zip->stream, zip->cd_size);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001107 /* Offset of start of central directory with respect to the starting disk number */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001108 if (err == MZ_OK)
1109 err = mz_stream_write_int64(zip->stream, zip->cd_offset);
1110 if (err == MZ_OK)
1111 err = mz_stream_write_uint32(zip->stream, MZ_ZIP_MAGIC_ENDLOCHEADER64);
1112
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001113 /* Number of the disk with the start of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001114 if (err == MZ_OK)
1115 err = mz_stream_write_uint32(zip->stream, zip->disk_number_with_cd);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001116 /* Relative offset to the end of zip64 central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001117 if (err == MZ_OK)
1118 err = mz_stream_write_int64(zip->stream, zip64_eocd_pos_inzip);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001119 /* Number of the disk with the start of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001120 if (err == MZ_OK)
1121 err = mz_stream_write_uint32(zip->stream, zip->disk_number_with_cd + 1);
1122 }
1123
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001124 /* Write the central directory header */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001125
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001126 /* Signature */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001127 if (err == MZ_OK)
1128 err = mz_stream_write_uint32(zip->stream, MZ_ZIP_MAGIC_ENDHEADER);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001129 /* Number of this disk */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001130 if (err == MZ_OK)
1131 err = mz_stream_write_uint16(zip->stream, (uint16_t)zip->disk_number_with_cd);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001132 /* Number of the disk with the start of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001133 if (err == MZ_OK)
1134 err = mz_stream_write_uint16(zip->stream, (uint16_t)zip->disk_number_with_cd);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001135 /* Total number of entries in the central dir on this disk */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001136 if (err == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001137 if (zip->number_entry >= UINT16_MAX)
1138 err = mz_stream_write_uint16(zip->stream, UINT16_MAX);
1139 else
1140 err = mz_stream_write_uint16(zip->stream, (uint16_t)zip->number_entry);
1141 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001142 /* Total number of entries in the central dir */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001143 if (err == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001144 if (zip->number_entry >= UINT16_MAX)
1145 err = mz_stream_write_uint16(zip->stream, UINT16_MAX);
1146 else
1147 err = mz_stream_write_uint16(zip->stream, (uint16_t)zip->number_entry);
1148 }
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001149 /* Size of the central directory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001150 if (err == MZ_OK)
1151 err = mz_stream_write_uint32(zip->stream, (uint32_t)zip->cd_size);
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001152 /* Offset of start of central directory with respect to the starting disk number */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001153 if (err == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001154 if (zip->cd_offset >= UINT32_MAX)
1155 err = mz_stream_write_uint32(zip->stream, UINT32_MAX);
1156 else
1157 err = mz_stream_write_uint32(zip->stream, (uint32_t)zip->cd_offset);
1158 }
1159
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001160 /* Write global comment */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001161 if (zip->comment != NULL) {
Nathan Moinvaziridd103f42018-11-13 14:50:32 -08001162 comment_size = (int32_t)strlen(zip->comment);
1163 if (comment_size > UINT16_MAX)
1164 comment_size = UINT16_MAX;
1165 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001166 if (err == MZ_OK)
Nathan Moinvaziridd103f42018-11-13 14:50:32 -08001167 err = mz_stream_write_uint16(zip->stream, (uint16_t)comment_size);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001168 if (err == MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001169 if (mz_stream_write(zip->stream, zip->comment, comment_size) != comment_size)
1170 err = MZ_READ_ERROR;
1171 }
1172 return err;
1173}
1174
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001175static int32_t mz_zip_recover_cd(void *handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001176 mz_zip *zip = (mz_zip *)handle;
1177 mz_zip_file local_file_info;
1178 void *local_file_info_stream = NULL;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001179 void *cd_mem_stream = NULL;
1180 uint64_t number_entry = 0;
1181 int64_t descriptor_pos = 0;
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001182 int64_t next_header_pos = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001183 int64_t disk_offset = 0;
1184 int64_t disk_number = 0;
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001185 int64_t compressed_pos = 0;
1186 int64_t compressed_end_pos = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001187 int64_t compressed_size = 0;
1188 int64_t uncompressed_size = 0;
1189 uint8_t descriptor_magic[4] = MZ_ZIP_MAGIC_DATADESCRIPTORU8;
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001190 uint8_t local_header_magic[4] = MZ_ZIP_MAGIC_LOCALHEADERU8;
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001191 uint8_t central_header_magic[4] = MZ_ZIP_MAGIC_CENTRALHEADERU8;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001192 uint32_t crc32 = 0;
1193 int32_t disk_number_with_cd = 0;
1194 int32_t err = MZ_OK;
1195 uint8_t zip64 = 0;
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001196 uint8_t eof = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001197
1198
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001199 mz_zip_print("Zip - Recover - Start\n");
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001200
1201 mz_zip_get_cd_mem_stream(handle, &cd_mem_stream);
1202
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001203 /* Determine if we are on a split disk or not */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001204 mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, 0);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001205 if (mz_stream_tell(zip->stream) < 0) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001206 mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, -1);
1207 mz_stream_seek(zip->stream, 0, MZ_SEEK_SET);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001208 } else
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001209 disk_number_with_cd = 1;
1210
1211 if (mz_stream_is_open(cd_mem_stream) != MZ_OK)
1212 err = mz_stream_mem_open(cd_mem_stream, NULL, MZ_OPEN_MODE_CREATE);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001213
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001214 mz_stream_mem_create(&local_file_info_stream);
1215 mz_stream_mem_open(local_file_info_stream, NULL, MZ_OPEN_MODE_CREATE);
Nathan Moinvaziri57cbcd22019-10-21 15:37:58 -07001216
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001217 if (err == MZ_OK) {
Nathan Moinvaziri57cbcd22019-10-21 15:37:58 -07001218 err = mz_stream_find(zip->stream, (const void *)local_header_magic, sizeof(local_header_magic),
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001219 INT64_MAX, &next_header_pos);
Nathan Moinvaziri57cbcd22019-10-21 15:37:58 -07001220 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001221
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001222 while (err == MZ_OK && !eof) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001223 /* Get current offset and disk number for central dir record */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001224 disk_offset = mz_stream_tell(zip->stream);
1225 mz_stream_get_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, &disk_number);
1226
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001227 /* Read local headers */
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001228 memset(&local_file_info, 0, sizeof(local_file_info));
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001229 err = mz_zip_entry_read_header(zip->stream, 1, &local_file_info, local_file_info_stream);
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001230 if (err != MZ_OK)
1231 break;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001232
1233 local_file_info.disk_offset = disk_offset;
1234 if (disk_number < 0)
1235 disk_number = 0;
1236 local_file_info.disk_number = (uint32_t)disk_number;
Nathan Moinvaziri370ab032019-11-15 13:24:17 -08001237
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001238 compressed_pos = mz_stream_tell(zip->stream);
Nathan Moinvaziri370ab032019-11-15 13:24:17 -08001239
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001240 if ((err == MZ_OK) && (local_file_info.compressed_size > 0)) {
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001241 mz_stream_seek(zip->stream, local_file_info.compressed_size, MZ_SEEK_CUR);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001242 }
1243
Nathan Moinvaziri958226c2020-07-30 11:06:25 -07001244 for (;;) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001245 /* Search for the next local header */
1246 err = mz_stream_find(zip->stream, (const void *)local_header_magic, sizeof(local_header_magic),
1247 INT64_MAX, &next_header_pos);
Nathan Moinvaziri370ab032019-11-15 13:24:17 -08001248
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001249 if (err == MZ_EXIST_ERROR) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001250 mz_stream_seek(zip->stream, compressed_pos, MZ_SEEK_SET);
1251
1252 /* Search for central dir if no local header found */
1253 err = mz_stream_find(zip->stream, (const void *)central_header_magic, sizeof(central_header_magic),
1254 INT64_MAX, &next_header_pos);
1255
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001256 if (err == MZ_EXIST_ERROR) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001257 /* Get end of stream if no central header found */
1258 mz_stream_seek(zip->stream, 0, MZ_SEEK_END);
1259 next_header_pos = mz_stream_tell(zip->stream);
1260 }
1261
1262 eof = 1;
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001263 }
1264
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001265 if (local_file_info.flag & MZ_ZIP_FLAG_DATA_DESCRIPTOR || local_file_info.compressed_size == 0) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001266 /* Search backwards for the descriptor, seeking too far back will be incorrect if compressed size is small */
1267 err = mz_stream_find_reverse(zip->stream, (const void *)descriptor_magic, sizeof(descriptor_magic),
1268 MZ_ZIP_SIZE_MAX_DATA_DESCRIPTOR, &descriptor_pos);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001269 if (err == MZ_OK) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001270 if (mz_zip_extrafield_contains(local_file_info.extrafield,
1271 local_file_info.extrafield_size, MZ_ZIP_EXTENSION_ZIP64, NULL) == MZ_OK)
1272 zip64 = 1;
1273
1274 err = mz_zip_entry_read_descriptor(zip->stream, zip64, &crc32,
1275 &compressed_size, &uncompressed_size);
1276
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001277 if (err == MZ_OK) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001278 if (local_file_info.crc == 0)
1279 local_file_info.crc = crc32;
1280 if (local_file_info.compressed_size == 0)
1281 local_file_info.compressed_size = compressed_size;
1282 if (local_file_info.uncompressed_size == 0)
1283 local_file_info.uncompressed_size = uncompressed_size;
1284 }
1285
1286 compressed_end_pos = descriptor_pos;
Nathan Moinvaziri958226c2020-07-30 11:06:25 -07001287 } else if (eof) {
1288 compressed_end_pos = next_header_pos;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001289 } else if (local_file_info.flag & MZ_ZIP_FLAG_DATA_DESCRIPTOR) {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001290 /* Wrong local file entry found, keep searching */
1291 next_header_pos += 1;
1292 mz_stream_seek(zip->stream, next_header_pos, MZ_SEEK_SET);
1293 continue;
1294 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001295 } else {
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001296 compressed_end_pos = next_header_pos;
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001297 }
1298
Nathan Moinvaziri4b5bd872019-11-11 17:04:05 -08001299 break;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001300 }
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001301
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001302 compressed_size = compressed_end_pos - compressed_pos;
1303
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001304 if (compressed_size > UINT32_MAX) {
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001305 /* Update sizes if 4GB file is written with no ZIP64 support */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001306 if (local_file_info.uncompressed_size < UINT32_MAX) {
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001307 local_file_info.compressed_size = compressed_size;
1308 local_file_info.uncompressed_size = 0;
1309 }
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001310 }
1311
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001312 mz_zip_print("Zip - Recover - Entry %s (csize %" PRId64 " usize %" PRId64 " flags 0x%" PRIx16 ")\n",
1313 local_file_info.filename, local_file_info.compressed_size, local_file_info.uncompressed_size,
1314 local_file_info.flag);
1315
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001316 /* Rewrite central dir with local headers and offsets */
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001317 err = mz_zip_entry_write_header(cd_mem_stream, 0, &local_file_info);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001318 if (err == MZ_OK)
Nathan Moinvaziri370ab032019-11-15 13:24:17 -08001319 number_entry += 1;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001320
Nathan Moinvaziri545d7292019-10-21 15:32:18 -07001321 err = mz_stream_seek(zip->stream, next_header_pos, MZ_SEEK_SET);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001322 }
1323
1324 mz_stream_mem_delete(&local_file_info_stream);
1325
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001326 mz_zip_print("Zip - Recover - Complete (cddisk %" PRId32 " entries %" PRId64 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001327 disk_number_with_cd, number_entry);
1328
1329 if (number_entry == 0)
1330 return err;
Nathan Moinvaziri370ab032019-11-15 13:24:17 -08001331
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001332 /* Set new upper seek boundary for central dir mem stream */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001333 disk_offset = mz_stream_tell(cd_mem_stream);
1334 mz_stream_mem_set_buffer_limit(cd_mem_stream, (int32_t)disk_offset);
1335
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001336 /* Set new central directory info */
Nathan Moinvaziri4d089732018-11-19 20:24:26 -08001337 mz_zip_set_cd_stream(handle, 0, cd_mem_stream);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001338 mz_zip_set_number_entry(handle, number_entry);
1339 mz_zip_set_disk_number_with_cd(handle, disk_number_with_cd);
1340
1341 return MZ_OK;
1342}
1343
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001344void *mz_zip_create(void **handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001345 mz_zip *zip = NULL;
1346
1347 zip = (mz_zip *)MZ_ALLOC(sizeof(mz_zip));
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001348 if (zip != NULL) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001349 memset(zip, 0, sizeof(mz_zip));
Nathan Moinvaziri41fcda92020-01-04 16:55:21 -08001350 zip->data_descriptor = 1;
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08001351 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001352 if (handle != NULL)
1353 *handle = zip;
1354
1355 return zip;
1356}
1357
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001358void mz_zip_delete(void **handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001359 mz_zip *zip = NULL;
1360 if (handle == NULL)
1361 return;
1362 zip = (mz_zip *)*handle;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001363 if (zip != NULL) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001364 MZ_FREE(zip);
1365 }
1366 *handle = NULL;
1367}
1368
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001369int32_t mz_zip_open(void *handle, void *stream, int32_t mode) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001370 mz_zip *zip = (mz_zip *)handle;
1371 int32_t err = MZ_OK;
1372
1373
1374 if (zip == NULL)
1375 return MZ_PARAM_ERROR;
1376
1377 mz_zip_print("Zip - Open\n");
1378
1379 zip->stream = stream;
1380
1381 mz_stream_mem_create(&zip->cd_mem_stream);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001382
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001383 if (mode & MZ_OPEN_MODE_WRITE) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001384 mz_stream_mem_open(zip->cd_mem_stream, NULL, MZ_OPEN_MODE_CREATE);
1385 zip->cd_stream = zip->cd_mem_stream;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001386 } else {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001387 zip->cd_stream = stream;
1388 }
1389
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001390 if ((mode & MZ_OPEN_MODE_READ) || (mode & MZ_OPEN_MODE_APPEND)) {
1391 if ((mode & MZ_OPEN_MODE_CREATE) == 0) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001392 err = mz_zip_read_cd(zip);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001393 if (err != MZ_OK) {
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001394 mz_zip_print("Zip - Error detected reading cd (%" PRId32 ")\n", err);
Nathan Moinvaziridd103f42018-11-13 14:50:32 -08001395 if (zip->recover && mz_zip_recover_cd(zip) == MZ_OK)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001396 err = MZ_OK;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001397 }
1398 }
1399
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001400 if ((err == MZ_OK) && (mode & MZ_OPEN_MODE_APPEND)) {
1401 if (zip->cd_size > 0) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001402 /* Store central directory in memory */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001403 err = mz_stream_seek(zip->stream, zip->cd_offset, MZ_SEEK_SET);
1404 if (err == MZ_OK)
1405 err = mz_stream_copy(zip->cd_mem_stream, zip->stream, (int32_t)zip->cd_size);
1406 if (err == MZ_OK)
1407 err = mz_stream_seek(zip->stream, zip->cd_offset, MZ_SEEK_SET);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001408 } else {
1409 if (zip->cd_signature == MZ_ZIP_MAGIC_ENDHEADER) {
Nathan Moinvaziri0e1fd892019-09-28 20:55:37 -07001410 /* If tiny zip then overwrite end header */
1411 err = mz_stream_seek(zip->stream, zip->cd_offset, MZ_SEEK_SET);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001412 } else {
Nathan Moinvaziri0e1fd892019-09-28 20:55:37 -07001413 /* If no central directory, append new zip to end of file */
1414 err = mz_stream_seek(zip->stream, 0, MZ_SEEK_END);
1415 }
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001416 }
Nathan Moinvaziri2ce1fe22018-11-23 11:53:11 -08001417
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001418 if (zip->disk_number_with_cd > 0) {
Nathan Moinvaziri2ce1fe22018-11-23 11:53:11 -08001419 /* Move to last disk to begin appending */
1420 mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, zip->disk_number_with_cd - 1);
1421 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001422 } else {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001423 zip->cd_start_pos = zip->cd_offset;
1424 }
1425 }
1426
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001427 if (err != MZ_OK) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001428 mz_zip_close(zip);
1429 return err;
1430 }
1431
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001432 /* Memory streams used to store variable length file info data */
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001433 mz_stream_mem_create(&zip->file_info_stream);
1434 mz_stream_mem_open(zip->file_info_stream, NULL, MZ_OPEN_MODE_CREATE);
1435
1436 mz_stream_mem_create(&zip->local_file_info_stream);
1437 mz_stream_mem_open(zip->local_file_info_stream, NULL, MZ_OPEN_MODE_CREATE);
1438
1439 zip->open_mode = mode;
1440
1441 return err;
1442}
1443
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001444int32_t mz_zip_close(void *handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001445 mz_zip *zip = (mz_zip *)handle;
1446 int32_t err = MZ_OK;
1447
1448 if (zip == NULL)
1449 return MZ_PARAM_ERROR;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001450
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001451 mz_zip_print("Zip - Close\n");
1452
1453 if (mz_zip_entry_is_open(handle) == MZ_OK)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001454 err = mz_zip_entry_close(handle);
Nathan Moinvazirieffc1422018-11-08 15:24:17 -08001455
1456 if ((err == MZ_OK) && (zip->open_mode & MZ_OPEN_MODE_WRITE))
1457 err = mz_zip_write_cd(handle);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001458
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001459 if (zip->cd_mem_stream != NULL) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001460 mz_stream_close(zip->cd_mem_stream);
1461 mz_stream_delete(&zip->cd_mem_stream);
1462 }
1463
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001464 if (zip->file_info_stream != NULL) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001465 mz_stream_mem_close(zip->file_info_stream);
1466 mz_stream_mem_delete(&zip->file_info_stream);
1467 }
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001468 if (zip->local_file_info_stream != NULL) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001469 mz_stream_mem_close(zip->local_file_info_stream);
1470 mz_stream_mem_delete(&zip->local_file_info_stream);
1471 }
1472
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001473 if (zip->comment) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001474 MZ_FREE(zip->comment);
1475 zip->comment = NULL;
1476 }
1477
1478 zip->stream = NULL;
1479 zip->cd_stream = NULL;
1480
1481 return err;
1482}
1483
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001484int32_t mz_zip_get_comment(void *handle, const char **comment) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001485 mz_zip *zip = (mz_zip *)handle;
1486 if (zip == NULL || comment == NULL)
1487 return MZ_PARAM_ERROR;
1488 if (zip->comment == NULL)
1489 return MZ_EXIST_ERROR;
1490 *comment = zip->comment;
1491 return MZ_OK;
1492}
1493
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001494int32_t mz_zip_set_comment(void *handle, const char *comment) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001495 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziridd103f42018-11-13 14:50:32 -08001496 int32_t comment_size = 0;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001497 if (zip == NULL || comment == NULL)
1498 return MZ_PARAM_ERROR;
1499 if (zip->comment != NULL)
1500 MZ_FREE(zip->comment);
Nathan Moinvaziri2df1ecb2018-12-01 08:59:21 -08001501 comment_size = (int32_t)strlen(comment);
1502 if (comment_size > UINT16_MAX)
1503 return MZ_PARAM_ERROR;
Nathan Moinvaziria6ecab52019-01-22 13:14:01 -08001504 zip->comment = (char *)MZ_ALLOC(comment_size+1);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001505 if (zip->comment == NULL)
1506 return MZ_MEM_ERROR;
Nathan Moinvaziria6ecab52019-01-22 13:14:01 -08001507 memset(zip->comment, 0, comment_size+1);
Nathan Moinvaziri2df1ecb2018-12-01 08:59:21 -08001508 strncpy(zip->comment, comment, comment_size);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001509 return MZ_OK;
1510}
1511
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001512int32_t mz_zip_get_version_madeby(void *handle, uint16_t *version_madeby) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001513 mz_zip *zip = (mz_zip *)handle;
1514 if (zip == NULL || version_madeby == NULL)
1515 return MZ_PARAM_ERROR;
1516 *version_madeby = zip->version_madeby;
1517 return MZ_OK;
1518}
1519
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001520int32_t mz_zip_set_version_madeby(void *handle, uint16_t version_madeby) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001521 mz_zip *zip = (mz_zip *)handle;
1522 if (zip == NULL)
1523 return MZ_PARAM_ERROR;
1524 zip->version_madeby = version_madeby;
1525 return MZ_OK;
1526}
1527
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001528int32_t mz_zip_set_recover(void *handle, uint8_t recover) {
Nathan Moinvaziridd103f42018-11-13 14:50:32 -08001529 mz_zip *zip = (mz_zip *)handle;
1530 if (zip == NULL)
1531 return MZ_PARAM_ERROR;
1532 zip->recover = recover;
1533 return MZ_OK;
1534}
1535
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001536int32_t mz_zip_set_data_descriptor(void *handle, uint8_t data_descriptor) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08001537 mz_zip *zip = (mz_zip *)handle;
1538 if (zip == NULL)
1539 return MZ_PARAM_ERROR;
1540 zip->data_descriptor = data_descriptor;
1541 return MZ_OK;
1542}
1543
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001544int32_t mz_zip_get_stream(void *handle, void **stream) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001545 mz_zip *zip = (mz_zip *)handle;
1546 if (zip == NULL || stream == NULL)
1547 return MZ_PARAM_ERROR;
1548 *stream = zip->stream;
1549 if (*stream == NULL)
1550 return MZ_EXIST_ERROR;
1551 return MZ_OK;
1552}
1553
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001554int32_t mz_zip_set_cd_stream(void *handle, int64_t cd_start_pos, void *cd_stream) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001555 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri4d089732018-11-19 20:24:26 -08001556 if (zip == NULL || cd_stream == NULL)
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001557 return MZ_PARAM_ERROR;
Nathan Moinvaziribe483d82019-10-19 17:30:23 -07001558 zip->cd_offset = 0;
Nathan Moinvaziri4d089732018-11-19 20:24:26 -08001559 zip->cd_stream = cd_stream;
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001560 zip->cd_start_pos = cd_start_pos;
1561 return MZ_OK;
1562}
1563
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001564int32_t mz_zip_get_cd_mem_stream(void *handle, void **cd_mem_stream) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001565 mz_zip *zip = (mz_zip *)handle;
1566 if (zip == NULL || cd_mem_stream == NULL)
1567 return MZ_PARAM_ERROR;
1568 *cd_mem_stream = zip->cd_mem_stream;
1569 if (*cd_mem_stream == NULL)
1570 return MZ_EXIST_ERROR;
1571 return MZ_OK;
1572}
1573
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001574int32_t mz_zip_set_number_entry(void *handle, uint64_t number_entry) {
Nathan Moinvaziri163352f2020-02-08 21:28:23 -08001575 mz_zip *zip = (mz_zip *)handle;
1576 if (zip == NULL)
1577 return MZ_PARAM_ERROR;
1578 zip->number_entry = number_entry;
1579 return MZ_OK;
1580}
1581
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001582int32_t mz_zip_get_number_entry(void *handle, uint64_t *number_entry) {
Nathan Moinvaziri163352f2020-02-08 21:28:23 -08001583 mz_zip *zip = (mz_zip *)handle;
1584 if (zip == NULL || number_entry == NULL)
1585 return MZ_PARAM_ERROR;
1586 *number_entry = zip->number_entry;
1587 return MZ_OK;
1588}
1589
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001590int32_t mz_zip_set_disk_number_with_cd(void *handle, uint32_t disk_number_with_cd) {
Nathan Moinvaziri163352f2020-02-08 21:28:23 -08001591 mz_zip *zip = (mz_zip *)handle;
1592 if (zip == NULL)
1593 return MZ_PARAM_ERROR;
1594 zip->disk_number_with_cd = disk_number_with_cd;
1595 return MZ_OK;
1596}
1597
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001598int32_t mz_zip_get_disk_number_with_cd(void *handle, uint32_t *disk_number_with_cd) {
Nathan Moinvaziri163352f2020-02-08 21:28:23 -08001599 mz_zip *zip = (mz_zip *)handle;
1600 if (zip == NULL || disk_number_with_cd == NULL)
1601 return MZ_PARAM_ERROR;
1602 *disk_number_with_cd = zip->disk_number_with_cd;
1603 return MZ_OK;
1604}
1605
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001606static int32_t mz_zip_entry_close_int(void *handle) {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001607 mz_zip *zip = (mz_zip *)handle;
1608
1609 if (zip->crypt_stream != NULL)
1610 mz_stream_delete(&zip->crypt_stream);
1611 zip->crypt_stream = NULL;
1612 if (zip->compress_stream != NULL)
1613 mz_stream_delete(&zip->compress_stream);
1614 zip->compress_stream = NULL;
1615
1616 zip->entry_opened = 0;
1617
1618 return MZ_OK;
1619}
1620
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001621static int32_t mz_zip_entry_open_int(void *handle, uint8_t raw, int16_t compress_level, const char *password) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001622 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001623 int64_t max_total_in = 0;
Nathan Moinvazirifa8105b2018-07-08 19:05:00 -07001624 int64_t header_size = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001625 int64_t footer_size = 0;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001626 int32_t err = MZ_OK;
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001627 uint8_t use_crypt = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001628
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001629 if (zip == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001630 return MZ_PARAM_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001631
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001632 switch (zip->file_info.compression_method) {
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001633 case MZ_COMPRESS_METHOD_STORE:
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001634 case MZ_COMPRESS_METHOD_DEFLATE:
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001635#ifdef HAVE_BZIP2
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001636 case MZ_COMPRESS_METHOD_BZIP2:
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001637#endif
Nathan Moinvaziri566dfe02018-10-26 00:36:30 -07001638#ifdef HAVE_LZMA
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001639 case MZ_COMPRESS_METHOD_LZMA:
Nathan Moinvaziri1a7e7e42020-10-25 14:50:53 -07001640#endif
1641#if defined(HAVE_LZMA) || defined(HAVE_LIBCOMP)
Nathan Moinvaziric4668ed2020-10-25 11:56:19 -07001642 case MZ_COMPRESS_METHOD_XZ:
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001643#endif
Nathan Moinvaziri1f4758b2020-06-14 21:52:55 -07001644#ifdef HAVE_ZSTD
1645 case MZ_COMPRESS_METHOD_ZSTD:
Nathan Moinvaziri1f4758b2020-06-14 21:52:55 -07001646#endif
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001647 err = MZ_OK;
1648 break;
1649 default:
Nathan Moinvaziri829ffb52018-08-14 14:00:16 -07001650 return MZ_SUPPORT_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001651 }
1652
Nathan Moinvazirif9e34482018-11-27 09:45:09 -08001653#ifndef HAVE_WZAES
1654 if (zip->file_info.aes_version)
1655 return MZ_SUPPORT_ERROR;
1656#endif
1657
Nathan Moinvaziria64c9192018-08-08 17:47:12 -07001658 zip->entry_raw = raw;
1659
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001660 if ((zip->file_info.flag & MZ_ZIP_FLAG_ENCRYPTED) && (password != NULL)) {
1661 if (zip->open_mode & MZ_OPEN_MODE_WRITE) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001662 /* Encrypt only when we are not trying to write raw and password is supplied. */
Nathan Moinvaziria64c9192018-08-08 17:47:12 -07001663 if (!zip->entry_raw)
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001664 use_crypt = 1;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001665 } else if (zip->open_mode & MZ_OPEN_MODE_READ) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001666 /* Decrypt only when password is supplied. Don't error when password */
1667 /* is not supplied as we may want to read the raw encrypted data. */
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001668 use_crypt = 1;
1669 }
1670 }
1671
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001672 if ((err == MZ_OK) && (use_crypt)) {
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -08001673#ifdef HAVE_WZAES
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001674 if (zip->file_info.aes_version) {
Nathan Moinvaziri21a31022018-10-24 09:50:16 -07001675 mz_stream_wzaes_create(&zip->crypt_stream);
1676 mz_stream_wzaes_set_password(zip->crypt_stream, password);
1677 mz_stream_wzaes_set_encryption_mode(zip->crypt_stream, zip->file_info.aes_encryption_mode);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001678 } else
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001679#endif
1680 {
Nathan Moinvaziri0e5c9dc2018-05-23 20:21:48 -07001681#ifdef HAVE_PKCRYPT
Nathan Moinvaziri9ffb08e2020-11-30 21:30:10 -08001682 uint8_t verify1 = (uint8_t)((zip->file_info.pk_verify >> 8) & 0xff);
1683 uint8_t verify2 = (uint8_t)((zip->file_info.pk_verify) & 0xff);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001684
Nathan Moinvaziri0e5c9dc2018-05-23 20:21:48 -07001685 mz_stream_pkcrypt_create(&zip->crypt_stream);
1686 mz_stream_pkcrypt_set_password(zip->crypt_stream, password);
1687 mz_stream_pkcrypt_set_verify(zip->crypt_stream, verify1, verify2);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001688#endif
1689 }
1690 }
1691
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001692 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001693 if (zip->crypt_stream == NULL)
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001694 mz_stream_raw_create(&zip->crypt_stream);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001695
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001696 mz_stream_set_base(zip->crypt_stream, zip->stream);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001697
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001698 err = mz_stream_open(zip->crypt_stream, NULL, zip->open_mode);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001699 }
1700
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001701 if (err == MZ_OK) {
Nathan Moinvaziria64c9192018-08-08 17:47:12 -07001702 if (zip->entry_raw || zip->file_info.compression_method == MZ_COMPRESS_METHOD_STORE)
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001703 mz_stream_raw_create(&zip->compress_stream);
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -08001704#if defined(HAVE_ZLIB) || defined(HAVE_LIBCOMP)
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001705 else if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_DEFLATE)
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001706 mz_stream_zlib_create(&zip->compress_stream);
Andy Maloney3909c232018-05-22 09:02:09 -04001707#endif
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001708#ifdef HAVE_BZIP2
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001709 else if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_BZIP2)
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001710 mz_stream_bzip_create(&zip->compress_stream);
1711#endif
Nathan Moinvaziri1a7e7e42020-10-25 14:50:53 -07001712#ifdef HAVE_LIBCOMP
1713 else if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_XZ) {
Nathan Moinvaziria7343862020-10-25 15:22:10 -07001714 mz_stream_libcomp_create(&zip->compress_stream);
Nathan Moinvaziri1a7e7e42020-10-25 14:50:53 -07001715 mz_stream_set_prop_int64(zip->compress_stream, MZ_STREAM_PROP_COMPRESS_METHOD,
1716 zip->file_info.compression_method);
1717 }
1718#endif
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001719#ifdef HAVE_LZMA
Nathan Moinvaziric4668ed2020-10-25 11:56:19 -07001720 else if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_LZMA ||
1721 zip->file_info.compression_method == MZ_COMPRESS_METHOD_XZ) {
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001722 mz_stream_lzma_create(&zip->compress_stream);
Nathan Moinvaziriff7ef662020-10-25 12:27:29 -07001723 mz_stream_set_prop_int64(zip->compress_stream, MZ_STREAM_PROP_COMPRESS_METHOD,
1724 zip->file_info.compression_method);
1725 }
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001726#endif
Nathan Moinvaziri1f4758b2020-06-14 21:52:55 -07001727#ifdef HAVE_ZSTD
Force Charlie32ccb3e2020-06-24 10:55:18 +08001728 else if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_ZSTD)
Nathan Moinvaziri1f4758b2020-06-14 21:52:55 -07001729 mz_stream_zstd_create(&zip->compress_stream);
1730#endif
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001731 else
1732 err = MZ_PARAM_ERROR;
1733 }
1734
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001735 if (err == MZ_OK) {
1736 if (zip->open_mode & MZ_OPEN_MODE_WRITE) {
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001737 mz_stream_set_prop_int64(zip->compress_stream, MZ_STREAM_PROP_COMPRESS_LEVEL, compress_level);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001738 } else {
Nathan Moinvaziri91261772020-06-19 21:16:16 -07001739 int32_t set_end_of_stream = 0;
1740
Nathan Moinvaziri76fb8902018-11-21 15:14:09 -08001741#ifndef HAVE_LIBCOMP
Nathan Moinvaziriff7ef662020-10-25 12:27:29 -07001742 if (zip->entry_raw ||
1743 zip->file_info.compression_method == MZ_COMPRESS_METHOD_STORE ||
1744 zip->file_info.flag & MZ_ZIP_FLAG_ENCRYPTED)
Nathan Moinvaziri90d31c72018-11-20 03:17:20 -08001745#endif
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001746 {
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001747 max_total_in = zip->file_info.compressed_size;
Nathan Moinvazirifa8105b2018-07-08 19:05:00 -07001748 mz_stream_set_prop_int64(zip->crypt_stream, MZ_STREAM_PROP_TOTAL_IN_MAX, max_total_in);
1749
1750 if (mz_stream_get_prop_int64(zip->crypt_stream, MZ_STREAM_PROP_HEADER_SIZE, &header_size) == MZ_OK)
1751 max_total_in -= header_size;
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001752 if (mz_stream_get_prop_int64(zip->crypt_stream, MZ_STREAM_PROP_FOOTER_SIZE, &footer_size) == MZ_OK)
1753 max_total_in -= footer_size;
Nathan Moinvazirifa8105b2018-07-08 19:05:00 -07001754
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001755 mz_stream_set_prop_int64(zip->compress_stream, MZ_STREAM_PROP_TOTAL_IN_MAX, max_total_in);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001756 }
Nathan Moinvaziri91261772020-06-19 21:16:16 -07001757
1758 switch (zip->file_info.compression_method) {
1759 case MZ_COMPRESS_METHOD_LZMA:
Nathan Moinvaziri5cd28792020-10-25 12:50:12 -07001760 case MZ_COMPRESS_METHOD_XZ:
Nathan Moinvaziri91261772020-06-19 21:16:16 -07001761 set_end_of_stream = (zip->file_info.flag & MZ_ZIP_FLAG_LZMA_EOS_MARKER);
1762 break;
1763 case MZ_COMPRESS_METHOD_ZSTD:
Nathan Moinvaziri91261772020-06-19 21:16:16 -07001764 set_end_of_stream = 1;
1765 break;
juanii55bcdaf2018-02-11 20:55:57 -03001766 }
Nathan Moinvaziri91261772020-06-19 21:16:16 -07001767
1768 if (set_end_of_stream) {
Force.Charlie7cecfa62020-06-15 07:43:25 -07001769 mz_stream_set_prop_int64(zip->compress_stream, MZ_STREAM_PROP_TOTAL_IN_MAX, zip->file_info.compressed_size);
1770 mz_stream_set_prop_int64(zip->compress_stream, MZ_STREAM_PROP_TOTAL_OUT_MAX, zip->file_info.uncompressed_size);
1771 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001772 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001773
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001774 mz_stream_set_base(zip->compress_stream, zip->crypt_stream);
1775
1776 err = mz_stream_open(zip->compress_stream, NULL, zip->open_mode);
1777 }
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07001778
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001779 if (err == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001780 zip->entry_opened = 1;
Nathan Moinvazirie63d2312018-11-03 19:45:41 -07001781 zip->entry_crc32 = 0;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001782 } else {
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001783 mz_zip_entry_close_int(handle);
1784 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001785
1786 return err;
1787}
1788
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001789int32_t mz_zip_entry_is_open(void *handle) {
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07001790 mz_zip *zip = (mz_zip *)handle;
1791 if (zip == NULL)
1792 return MZ_PARAM_ERROR;
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07001793 if (zip->entry_opened == 0)
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07001794 return MZ_EXIST_ERROR;
1795 return MZ_OK;
1796}
1797
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001798int32_t mz_zip_entry_read_open(void *handle, uint8_t raw, const char *password) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001799 mz_zip *zip = (mz_zip *)handle;
1800 int32_t err = MZ_OK;
Nathan Moinvaziriaacf8732018-11-06 09:38:46 -08001801 int32_t err_shift = MZ_OK;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001802
Nathan Moinvaziri40427632018-07-22 11:12:40 -07001803#if defined(MZ_ZIP_NO_ENCRYPTION)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001804 if (password != NULL)
Nathan Moinvazirif9e34482018-11-27 09:45:09 -08001805 return MZ_SUPPORT_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001806#endif
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001807 if (zip == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001808 return MZ_PARAM_ERROR;
Nathan Moinvaziri79ac3382017-10-23 17:22:36 -07001809 if ((zip->open_mode & MZ_OPEN_MODE_READ) == 0)
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001810 return MZ_PARAM_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001811 if (zip->entry_scanned == 0)
1812 return MZ_PARAM_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001813
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07001814 mz_zip_print("Zip - Entry - Read open (raw %" PRId32 ")\n", raw);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001815
Nathan Moinvaziri0030fa22020-12-21 19:31:07 -08001816 err = mz_zip_entry_seek_local_header(handle);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001817 if (err == MZ_OK)
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001818 err = mz_zip_entry_read_header(zip->stream, 1, &zip->local_file_info, zip->local_file_info_stream);
Nathan Moinvaziri903b73d2017-10-20 08:47:19 -07001819
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001820 if (err == MZ_FORMAT_ERROR && zip->disk_offset_shift > 0) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001821 /* Perhaps we didn't compensated correctly for incorrect cd offset */
Nathan Moinvaziriaacf8732018-11-06 09:38:46 -08001822 err_shift = mz_stream_seek(zip->stream, zip->file_info.disk_offset, MZ_SEEK_SET);
1823 if (err_shift == MZ_OK)
1824 err_shift = mz_zip_entry_read_header(zip->stream, 1, &zip->local_file_info, zip->local_file_info_stream);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001825 if (err_shift == MZ_OK) {
Nathan Moinvaziriaacf8732018-11-06 09:38:46 -08001826 zip->disk_offset_shift = 0;
1827 err = err_shift;
1828 }
1829 }
1830
Nathan Moinvaziria6d1f662018-07-22 10:35:49 -07001831#ifdef MZ_ZIP_NO_DECOMPRESSION
Nathan Moinvaziri2eb29072018-11-23 10:32:21 -08001832 if (!raw && zip->file_info.compression_method != MZ_COMPRESS_METHOD_STORE)
Nathan Moinvaziri0a9282d2018-06-19 11:59:07 -07001833 err = MZ_SUPPORT_ERROR;
Viktor Szakatse7215072018-09-04 15:06:53 +00001834#endif
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001835 if (err == MZ_OK)
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001836 err = mz_zip_entry_open_int(handle, raw, 0, password);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001837
1838 return err;
1839}
1840
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001841int32_t mz_zip_entry_write_open(void *handle, const mz_zip_file *file_info, int16_t compress_level, uint8_t raw, const char *password) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001842 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri6b64b922018-11-23 11:41:35 -08001843 int64_t filename_pos = -1;
Nathan Moinvazirif9e34482018-11-27 09:45:09 -08001844 int64_t extrafield_pos = 0;
1845 int64_t comment_pos = 0;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -07001846 int64_t linkname_pos = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001847 int64_t disk_number = 0;
Nathan Moinvazirifa620e42018-10-20 10:37:10 -07001848 uint8_t is_dir = 0;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001849 int32_t err = MZ_OK;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001850
Nathan Moinvaziri40427632018-07-22 11:12:40 -07001851#if defined(MZ_ZIP_NO_ENCRYPTION)
tz-lomb1b25802017-11-10 15:03:02 +03001852 if (password != NULL)
Nathan Moinvazirif9e34482018-11-27 09:45:09 -08001853 return MZ_SUPPORT_ERROR;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001854#endif
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001855 if (zip == NULL || file_info == NULL || file_info->filename == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001856 return MZ_PARAM_ERROR;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001857
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001858 if (mz_zip_entry_is_open(handle) == MZ_OK) {
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001859 err = mz_zip_entry_close(handle);
1860 if (err != MZ_OK)
1861 return err;
1862 }
1863
1864 memcpy(&zip->file_info, file_info, sizeof(mz_zip_file));
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001865
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07001866 mz_zip_print("Zip - Entry - Write open - %s (level %" PRId16 " raw %" PRId8 ")\n",
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001867 zip->file_info.filename, compress_level, raw);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001868
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001869 mz_stream_seek(zip->file_info_stream, 0, MZ_SEEK_SET);
Nathan Moinvazirif5cc4c02018-08-14 17:46:36 -07001870 mz_stream_write(zip->file_info_stream, file_info, sizeof(mz_zip_file));
1871
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001872 /* Copy filename, extrafield, and comment internally */
Nathan Moinvaziri6b64b922018-11-23 11:41:35 -08001873 filename_pos = mz_stream_tell(zip->file_info_stream);
Nathan Moinvazirif5cc4c02018-08-14 17:46:36 -07001874 if (file_info->filename != NULL)
Nathan Moinvaziri6b64b922018-11-23 11:41:35 -08001875 mz_stream_write(zip->file_info_stream, file_info->filename, (int32_t)strlen(file_info->filename));
1876 mz_stream_write_uint8(zip->file_info_stream, 0);
1877
1878 extrafield_pos = mz_stream_tell(zip->file_info_stream);
Nathan Moinvazirif5cc4c02018-08-14 17:46:36 -07001879 if (file_info->extrafield != NULL)
Nathan Moinvazirica014e62018-08-15 07:31:12 -07001880 mz_stream_write(zip->file_info_stream, file_info->extrafield, file_info->extrafield_size);
Nathan Moinvaziri6b64b922018-11-23 11:41:35 -08001881 mz_stream_write_uint8(zip->file_info_stream, 0);
1882
1883 comment_pos = mz_stream_tell(zip->file_info_stream);
Nathan Moinvazirif5cc4c02018-08-14 17:46:36 -07001884 if (file_info->comment != NULL)
Nathan Moinvaziri6b64b922018-11-23 11:41:35 -08001885 mz_stream_write(zip->file_info_stream, file_info->comment, file_info->comment_size);
1886 mz_stream_write_uint8(zip->file_info_stream, 0);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001887
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -07001888 linkname_pos = mz_stream_tell(zip->file_info_stream);
1889 if (file_info->linkname != NULL)
1890 mz_stream_write(zip->file_info_stream, file_info->linkname, (int32_t)strlen(file_info->linkname));
1891 mz_stream_write_uint8(zip->file_info_stream, 0);
Nathan Moinvaziri6b64b922018-11-23 11:41:35 -08001892
Nathan Moinvazirif9e34482018-11-27 09:45:09 -08001893 mz_stream_mem_get_buffer_at(zip->file_info_stream, filename_pos, (const void **)&zip->file_info.filename);
1894 mz_stream_mem_get_buffer_at(zip->file_info_stream, extrafield_pos, (const void **)&zip->file_info.extrafield);
1895 mz_stream_mem_get_buffer_at(zip->file_info_stream, comment_pos, (const void **)&zip->file_info.comment);
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -07001896 mz_stream_mem_get_buffer_at(zip->file_info_stream, linkname_pos, (const void **)&zip->file_info.linkname);
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001897
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001898 if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_DEFLATE) {
Nathan Moinvaziri91a76f62017-11-10 07:39:06 -08001899 if ((compress_level == 8) || (compress_level == 9))
1900 zip->file_info.flag |= MZ_ZIP_FLAG_DEFLATE_MAX;
1901 if (compress_level == 2)
1902 zip->file_info.flag |= MZ_ZIP_FLAG_DEFLATE_FAST;
1903 if (compress_level == 1)
1904 zip->file_info.flag |= MZ_ZIP_FLAG_DEFLATE_SUPER_FAST;
1905 }
Nathan Moinvaziri1a7e7e42020-10-25 14:50:53 -07001906#if defined(HAVE_LZMA) || defined(HAVE_LIBCOMP)
Nathan Moinvaziri5cd28792020-10-25 12:50:12 -07001907 else if (zip->file_info.compression_method == MZ_COMPRESS_METHOD_LZMA ||
1908 zip->file_info.compression_method == MZ_COMPRESS_METHOD_XZ)
Nathan Moinvaziri91a76f62017-11-10 07:39:06 -08001909 zip->file_info.flag |= MZ_ZIP_FLAG_LZMA_EOS_MARKER;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001910#endif
Nathan Moinvaziri91a76f62017-11-10 07:39:06 -08001911
Nathan Moinvazirifa620e42018-10-20 10:37:10 -07001912 if (mz_zip_attrib_is_dir(zip->file_info.external_fa, zip->file_info.version_madeby) == MZ_OK)
1913 is_dir = 1;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001914
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001915 if (!is_dir) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08001916 if (zip->data_descriptor)
1917 zip->file_info.flag |= MZ_ZIP_FLAG_DATA_DESCRIPTOR;
Nathan Moinvazirifa620e42018-10-20 10:37:10 -07001918 if (password != NULL)
1919 zip->file_info.flag |= MZ_ZIP_FLAG_ENCRYPTED;
1920 }
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001921
juaniib8887e92018-02-14 00:51:05 -03001922 mz_stream_get_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, &disk_number);
1923 zip->file_info.disk_number = (uint32_t)disk_number;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001924 zip->file_info.disk_offset = mz_stream_tell(zip->stream);
Nathan Moinvaziri215a7a82020-12-13 10:58:41 -08001925
1926 if (zip->file_info.flag & MZ_ZIP_FLAG_ENCRYPTED) {
1927#ifdef HAVE_PKCRYPT
1928 /* Pre-calculated CRC value is required for PKWARE traditional encryption */
1929 uint32_t dos_date = mz_zip_time_t_to_dos_date(zip->file_info.modified_date);
1930 zip->file_info.pk_verify = mz_zip_get_pk_verify(dos_date, zip->file_info.crc, zip->file_info.flag);
1931#endif
1932#ifdef HAVE_WZAES
1933 if (zip->file_info.aes_version && zip->file_info.aes_encryption_mode == 0)
1934 zip->file_info.aes_encryption_mode = MZ_AES_ENCRYPTION_MODE_256;
1935#endif
1936 }
1937
Nathan Moinvaziria66cc312017-10-18 16:51:10 -07001938 zip->file_info.crc = 0;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001939 zip->file_info.compressed_size = 0;
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001940
Nathan Moinvazirifa620e42018-10-20 10:37:10 -07001941 if ((compress_level == 0) || (is_dir))
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001942 zip->file_info.compression_method = MZ_COMPRESS_METHOD_STORE;
Viktor Szakats2884e672018-04-30 08:12:13 +00001943
Nathan Moinvaziria6d1f662018-07-22 10:35:49 -07001944#ifdef MZ_ZIP_NO_COMPRESSION
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001945 if (zip->file_info.compression_method != MZ_COMPRESS_METHOD_STORE)
Nathan Moinvaziri0a9282d2018-06-19 11:59:07 -07001946 err = MZ_SUPPORT_ERROR;
1947#endif
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001948 if (err == MZ_OK)
Nathan Moinvazirifa620e42018-10-20 10:37:10 -07001949 err = mz_zip_entry_write_header(zip->stream, 1, &zip->file_info);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001950 if (err == MZ_OK)
Nathan Moinvazirifa146ad2018-08-07 23:50:31 -07001951 err = mz_zip_entry_open_int(handle, raw, compress_level, password);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001952
1953 return err;
1954}
1955
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001956int32_t mz_zip_entry_read(void *handle, void *buf, int32_t len) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001957 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001958 int32_t read = 0;
1959
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07001960 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001961 return MZ_PARAM_ERROR;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001962 if (UINT_MAX == UINT16_MAX && len > UINT16_MAX) /* zlib limitation */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001963 return MZ_PARAM_ERROR;
Nathan Moinvazirid7814e92018-07-11 14:54:14 -07001964 if (len == 0)
1965 return MZ_PARAM_ERROR;
1966
Nathan Moinvazirieb80cd92018-07-11 16:45:09 -07001967 if (zip->file_info.compressed_size == 0)
1968 return 0;
1969
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08001970 /* Read entire entry even if uncompressed_size = 0, otherwise */
1971 /* aes encryption validation will fail if compressed_size > 0 */
Nathan Moinvazirie63d2312018-11-03 19:45:41 -07001972 read = mz_stream_read(zip->compress_stream, buf, len);
1973 if (read > 0)
1974 zip->entry_crc32 = mz_crypt_crc32_update(zip->entry_crc32, buf, read);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001975
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07001976 mz_zip_print("Zip - Entry - Read - %" PRId32 " (max %" PRId32 ")\n", read, len);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001977
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001978 return read;
1979}
1980
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001981int32_t mz_zip_entry_write(void *handle, const void *buf, int32_t len) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07001982 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri0a9282d2018-06-19 11:59:07 -07001983 int32_t written = 0;
1984
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07001985 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001986 return MZ_PARAM_ERROR;
Nathan Moinvazirie63d2312018-11-03 19:45:41 -07001987 written = mz_stream_write(zip->compress_stream, buf, len);
1988 if (written > 0)
1989 zip->entry_crc32 = mz_crypt_crc32_update(zip->entry_crc32, buf, written);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001990
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07001991 mz_zip_print("Zip - Entry - Write - %" PRId32 " (max %" PRId32 ")\n", written, len);
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08001992
Nathan Moinvaziri0a9282d2018-06-19 11:59:07 -07001993 return written;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07001994}
1995
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07001996int32_t mz_zip_entry_read_close(void *handle, uint32_t *crc32, int64_t *compressed_size,
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07001997 int64_t *uncompressed_size) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08001998 mz_zip *zip = (mz_zip *)handle;
1999 int64_t total_in = 0;
2000 int32_t err = MZ_OK;
2001 uint8_t zip64 = 0;
2002
2003 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
2004 return MZ_PARAM_ERROR;
2005
2006 mz_stream_close(zip->compress_stream);
2007
2008 mz_zip_print("Zip - Entry - Read Close\n");
2009
2010 if (crc32 != NULL)
2011 *crc32 = zip->file_info.crc;
2012 if (compressed_size != NULL)
2013 *compressed_size = zip->file_info.compressed_size;
2014 if (uncompressed_size != NULL)
2015 *uncompressed_size = zip->file_info.uncompressed_size;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002016
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002017 mz_stream_get_prop_int64(zip->compress_stream, MZ_STREAM_PROP_TOTAL_IN, &total_in);
2018
2019 if ((zip->file_info.flag & MZ_ZIP_FLAG_DATA_DESCRIPTOR) &&
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002020 ((zip->file_info.flag & MZ_ZIP_FLAG_MASK_LOCAL_INFO) == 0) &&
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002021 (crc32 != NULL || compressed_size != NULL || uncompressed_size != NULL)) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002022 /* Check to see if data descriptor is zip64 bit format or not */
2023 if (mz_zip_extrafield_contains(zip->local_file_info.extrafield,
2024 zip->local_file_info.extrafield_size, MZ_ZIP_EXTENSION_ZIP64, NULL) == MZ_OK)
2025 zip64 = 1;
2026
Nathan Moinvaziri0030fa22020-12-21 19:31:07 -08002027 err = mz_zip_entry_seek_local_header(handle);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002028
2029 /* Seek to end of compressed stream since we might have over-read during compression */
2030 if (err == MZ_OK)
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002031 err = mz_stream_seek(zip->stream, MZ_ZIP_SIZE_LD_ITEM +
2032 (int64_t)zip->local_file_info.filename_size +
2033 (int64_t)zip->local_file_info.extrafield_size +
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002034 total_in, MZ_SEEK_CUR);
2035
2036 /* Read data descriptor */
2037 if (err == MZ_OK)
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002038 err = mz_zip_entry_read_descriptor(zip->stream, zip64,
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002039 crc32, compressed_size, uncompressed_size);
2040 }
2041
2042 /* If entire entry was not read verification will fail */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002043 if ((err == MZ_OK) && (total_in > 0) && (!zip->entry_raw)) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002044#ifdef HAVE_WZAES
2045 /* AES zip version AE-1 will expect a valid crc as well */
2046 if (zip->file_info.aes_version <= 0x0001)
2047#endif
2048 {
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002049 if (zip->entry_crc32 != zip->file_info.crc) {
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07002050 mz_zip_print("Zip - Entry - Crc failed (actual 0x%08" PRIx32 " expected 0x%08" PRIx32 ")\n",
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002051 zip->entry_crc32, zip->file_info.crc);
2052
2053 err = MZ_CRC_ERROR;
2054 }
2055 }
2056 }
2057
2058 mz_zip_entry_close_int(handle);
2059
2060 return err;
2061}
2062
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002063int32_t mz_zip_entry_write_close(void *handle, uint32_t crc32, int64_t compressed_size,
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002064 int64_t uncompressed_size) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002065 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002066 int64_t end_disk_number = 0;
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002067 int32_t err = MZ_OK;
2068 uint8_t zip64 = 0;
2069
2070 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
2071 return MZ_PARAM_ERROR;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002072
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002073 mz_stream_close(zip->compress_stream);
2074
2075 if (!zip->entry_raw)
2076 crc32 = zip->entry_crc32;
2077
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07002078 mz_zip_print("Zip - Entry - Write Close (crc 0x%08" PRIx32 " cs %" PRId64 " ucs %" PRId64 ")\n",
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002079 crc32, compressed_size, uncompressed_size);
2080
2081 /* If sizes are not set, then read them from the compression stream */
2082 if (compressed_size < 0)
2083 mz_stream_get_prop_int64(zip->compress_stream, MZ_STREAM_PROP_TOTAL_OUT, &compressed_size);
2084 if (uncompressed_size < 0)
Nathan Moinvazirid9318432018-12-01 07:56:28 -08002085 mz_stream_get_prop_int64(zip->compress_stream, MZ_STREAM_PROP_TOTAL_IN, &uncompressed_size);
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002086
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002087 if (zip->file_info.flag & MZ_ZIP_FLAG_ENCRYPTED) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002088 mz_stream_set_base(zip->crypt_stream, zip->stream);
2089 err = mz_stream_close(zip->crypt_stream);
2090
2091 mz_stream_get_prop_int64(zip->crypt_stream, MZ_STREAM_PROP_TOTAL_OUT, &compressed_size);
2092 }
2093
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002094 if ((err == MZ_OK) && (zip->file_info.flag & MZ_ZIP_FLAG_DATA_DESCRIPTOR)) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002095 /* Determine if we need to write data descriptor in zip64 format,
2096 if local extrafield was saved with zip64 extrafield */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002097 if (zip->file_info.zip64 == MZ_ZIP64_AUTO) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002098 if (zip->file_info.uncompressed_size >= UINT32_MAX)
2099 zip64 = 1;
2100 if (zip->file_info.compressed_size >= UINT32_MAX)
2101 zip64 = 1;
2102 if (zip->file_info.disk_offset >= UINT32_MAX)
2103 zip64 = 1;
2104 else if (zip->file_info.uncompressed_size == 0)
2105 zip64 = 1;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002106 } else if (zip->file_info.zip64 == MZ_ZIP64_FORCE) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002107 zip64 = 1;
2108 }
2109
2110 if (zip->file_info.flag & MZ_ZIP_FLAG_MASK_LOCAL_INFO)
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002111 err = mz_zip_entry_write_descriptor(zip->stream,
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002112 zip64, 0, compressed_size, 0);
2113 else
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002114 err = mz_zip_entry_write_descriptor(zip->stream,
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002115 zip64, crc32, compressed_size, uncompressed_size);
2116 }
2117
2118 /* Write file info to central directory */
2119
Nathan Moinvazirife33c3d2019-09-16 11:07:43 -07002120 mz_zip_print("Zip - Entry - Write cd (ucs %" PRId64 " cs %" PRId64 " crc 0x%08" PRIx32 ")\n",
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002121 uncompressed_size, compressed_size, crc32);
2122
2123 zip->file_info.crc = crc32;
2124 zip->file_info.compressed_size = compressed_size;
2125 zip->file_info.uncompressed_size = uncompressed_size;
2126
2127 if (err == MZ_OK)
2128 err = mz_zip_entry_write_header(zip->cd_mem_stream, 0, &zip->file_info);
2129
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002130 /* Update local header with crc32 and sizes */
2131 if ((err == MZ_OK) && ((zip->file_info.flag & MZ_ZIP_FLAG_DATA_DESCRIPTOR) == 0) &&
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002132 ((zip->file_info.flag & MZ_ZIP_FLAG_MASK_LOCAL_INFO) == 0)) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002133 /* Save the disk number and position we are to seek back after updating local header */
Nathan Moinvaziri58b37d32020-02-08 20:32:58 -08002134 int64_t end_pos = mz_stream_tell(zip->stream);
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002135 mz_stream_get_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, &end_disk_number);
2136
Nathan Moinvaziri0030fa22020-12-21 19:31:07 -08002137 err = mz_zip_entry_seek_local_header(handle);
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002138
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002139 if (err == MZ_OK) {
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002140 /* Seek to crc32 and sizes offset in local header */
2141 err = mz_stream_seek(zip->stream, MZ_ZIP_OFFSET_CRC_SIZES, MZ_SEEK_CUR);
2142 }
2143
2144 if (err == MZ_OK)
Nathan Moinvazirid7e6aa02020-02-12 08:31:21 -08002145 err = mz_zip_entry_write_crc_sizes(zip->stream, 0, &zip->file_info);
Nathan Moinvaziri6c87ff42020-01-03 16:58:16 -08002146
2147 mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, end_disk_number);
2148 mz_stream_seek(zip->stream, end_pos, MZ_SEEK_SET);
2149 }
2150
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002151 zip->number_entry += 1;
2152
2153 mz_zip_entry_close_int(handle);
2154
2155 return err;
2156}
2157
Nathan Moinvaziri0030fa22020-12-21 19:31:07 -08002158int32_t mz_zip_entry_seek_local_header(void *handle) {
2159 mz_zip *zip = (mz_zip *)handle;
2160 int64_t disk_size = 0;
2161 uint32_t disk_number = zip->file_info.disk_number;
2162
2163 if (disk_number == zip->disk_number_with_cd) {
2164 mz_stream_get_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_SIZE, &disk_size);
2165 if ((disk_size == 0) || ((zip->open_mode & MZ_OPEN_MODE_WRITE) == 0))
2166 disk_number = (uint32_t)-1;
2167 }
2168
2169 mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, disk_number);
2170
2171 mz_zip_print("Zip - Entry - Seek local (disk %" PRId32 " offset %" PRId64 ")\n",
2172 disk_number, zip->file_info.disk_offset);
2173
2174 /* Guard against seek overflows */
2175 if ((zip->disk_offset_shift > 0) &&
2176 (zip->file_info.disk_offset > (INT64_MAX - zip->disk_offset_shift)))
2177 return MZ_FORMAT_ERROR;
2178
2179 return mz_stream_seek(zip->stream, zip->file_info.disk_offset + zip->disk_offset_shift, MZ_SEEK_SET);
2180}
2181
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002182int32_t mz_zip_entry_close(void *handle) {
Nathan Moinvaziri163352f2020-02-08 21:28:23 -08002183 return mz_zip_entry_close_raw(handle, UINT64_MAX, 0);
2184}
2185
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002186int32_t mz_zip_entry_close_raw(void *handle, int64_t uncompressed_size, uint32_t crc32) {
Nathan Moinvaziri163352f2020-02-08 21:28:23 -08002187 mz_zip *zip = (mz_zip *)handle;
2188 int32_t err = MZ_OK;
2189
2190 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
2191 return MZ_PARAM_ERROR;
2192
2193 if (zip->open_mode & MZ_OPEN_MODE_WRITE)
2194 err = mz_zip_entry_write_close(handle, crc32, UINT64_MAX, uncompressed_size);
2195 else
2196 err = mz_zip_entry_read_close(handle, NULL, NULL, NULL);
2197
2198 return err;
2199}
2200
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002201int32_t mz_zip_entry_is_dir(void *handle) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002202 mz_zip *zip = (mz_zip *)handle;
2203 int32_t filename_length = 0;
2204
2205 if (zip == NULL)
2206 return MZ_PARAM_ERROR;
2207 if (zip->entry_scanned == 0)
2208 return MZ_PARAM_ERROR;
2209 if (mz_zip_attrib_is_dir(zip->file_info.external_fa, zip->file_info.version_madeby) == MZ_OK)
2210 return MZ_OK;
2211
2212 filename_length = (int32_t)strlen(zip->file_info.filename);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002213 if (filename_length > 0) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002214 if ((zip->file_info.filename[filename_length - 1] == '/') ||
2215 (zip->file_info.filename[filename_length - 1] == '\\'))
2216 return MZ_OK;
2217 }
2218 return MZ_EXIST_ERROR;
2219}
2220
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002221int32_t mz_zip_entry_is_symlink(void *handle) {
Nathan Moinvaziri3249eac2019-05-02 21:07:39 -07002222 mz_zip *zip = (mz_zip *)handle;
2223
2224 if (zip == NULL)
2225 return MZ_PARAM_ERROR;
2226 if (zip->entry_scanned == 0)
2227 return MZ_PARAM_ERROR;
Nathan Moinvaziri426543d2019-05-07 09:46:25 -07002228 if (mz_zip_attrib_is_symlink(zip->file_info.external_fa, zip->file_info.version_madeby) != MZ_OK)
2229 return MZ_EXIST_ERROR;
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -07002230 if (zip->file_info.linkname == NULL || *zip->file_info.linkname == 0)
2231 return MZ_EXIST_ERROR;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002232
Nathan Moinvaziria5a1d5d2019-05-05 20:13:58 -07002233 return MZ_OK;
Nathan Moinvaziri3249eac2019-05-02 21:07:39 -07002234}
2235
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002236int32_t mz_zip_entry_get_info(void *handle, mz_zip_file **file_info) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002237 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002238
2239 if (zip == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002240 return MZ_PARAM_ERROR;
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002241
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002242 if ((zip->open_mode & MZ_OPEN_MODE_WRITE) == 0) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002243 if (!zip->entry_scanned)
2244 return MZ_PARAM_ERROR;
2245 }
2246
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002247 *file_info = &zip->file_info;
2248 return MZ_OK;
2249}
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002250
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002251int32_t mz_zip_entry_get_local_info(void *handle, mz_zip_file **local_file_info) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002252 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07002253 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002254 return MZ_PARAM_ERROR;
2255 *local_file_info = &zip->local_file_info;
2256 return MZ_OK;
2257}
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002258
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002259int32_t mz_zip_entry_set_extrafield(void *handle, const uint8_t *extrafield, uint16_t extrafield_size) {
Nathan Moinvaziri915c5132018-10-26 20:00:52 -07002260 mz_zip *zip = (mz_zip *)handle;
2261
2262 if (zip == NULL || mz_zip_entry_is_open(handle) != MZ_OK)
2263 return MZ_PARAM_ERROR;
2264
2265 zip->file_info.extrafield = extrafield;
2266 zip->file_info.extrafield_size = extrafield_size;
2267 return MZ_OK;
2268}
2269
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002270static int32_t mz_zip_goto_next_entry_int(void *handle) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002271 mz_zip *zip = (mz_zip *)handle;
2272 int32_t err = MZ_OK;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002273
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002274 if (zip == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002275 return MZ_PARAM_ERROR;
2276
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002277 zip->entry_scanned = 0;
2278
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002279 mz_stream_set_prop_int64(zip->cd_stream, MZ_STREAM_PROP_DISK_NUMBER, -1);
Viktor Szakats915b82e2018-04-24 10:02:39 +00002280
Nathan Moinvaziri79ac3382017-10-23 17:22:36 -07002281 err = mz_stream_seek(zip->cd_stream, zip->cd_current_pos, MZ_SEEK_SET);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002282 if (err == MZ_OK)
Nathan Moinvaziricda36002017-10-21 09:37:18 -07002283 err = mz_zip_entry_read_header(zip->cd_stream, 0, &zip->file_info, zip->file_info_stream);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002284 if (err == MZ_OK)
2285 zip->entry_scanned = 1;
2286 return err;
2287}
2288
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002289int64_t mz_zip_get_entry(void *handle) {
Viktor Szakatsce26dba2018-04-22 19:30:34 +00002290 mz_zip *zip = (mz_zip *)handle;
2291
2292 if (zip == NULL)
2293 return MZ_PARAM_ERROR;
2294
2295 return zip->cd_current_pos;
2296}
2297
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002298int32_t mz_zip_goto_entry(void *handle, int64_t cd_pos) {
Viktor Szakatsce26dba2018-04-22 19:30:34 +00002299 mz_zip *zip = (mz_zip *)handle;
2300
2301 if (zip == NULL)
2302 return MZ_PARAM_ERROR;
2303
2304 if (cd_pos < zip->cd_start_pos || cd_pos > zip->cd_start_pos + zip->cd_size)
2305 return MZ_PARAM_ERROR;
2306
2307 zip->cd_current_pos = cd_pos;
2308
2309 return mz_zip_goto_next_entry_int(handle);
2310}
2311
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002312int32_t mz_zip_goto_first_entry(void *handle) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002313 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002314
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002315 if (zip == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002316 return MZ_PARAM_ERROR;
2317
Nathan Moinvaziricda36002017-10-21 09:37:18 -07002318 zip->cd_current_pos = zip->cd_start_pos;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002319
2320 return mz_zip_goto_next_entry_int(handle);
2321}
2322
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002323int32_t mz_zip_goto_next_entry(void *handle) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002324 mz_zip *zip = (mz_zip *)handle;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002325
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002326 if (zip == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002327 return MZ_PARAM_ERROR;
2328
Nathan Moinvaziri904c4082018-10-08 23:31:21 -07002329 zip->cd_current_pos += (int64_t)MZ_ZIP_SIZE_CD_ITEM + zip->file_info.filename_size +
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002330 zip->file_info.extrafield_size + zip->file_info.comment_size;
2331
2332 return mz_zip_goto_next_entry_int(handle);
2333}
2334
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002335int32_t mz_zip_locate_entry(void *handle, const char *filename, uint8_t ignore_case) {
Nathan Moinvaziri5f9e5d32017-10-20 07:59:39 -07002336 mz_zip *zip = (mz_zip *)handle;
2337 int32_t err = MZ_OK;
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002338 int32_t result = 0;
2339
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07002340 if (zip == NULL || filename == NULL)
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002341 return MZ_PARAM_ERROR;
2342
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002343 /* If we are already on the current entry, no need to search */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002344 if ((zip->entry_scanned) && (zip->file_info.filename != NULL)) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002345 result = mz_zip_path_compare(zip->file_info.filename, filename, ignore_case);
Nathan Moinvaziri77687f32018-08-09 16:29:26 -07002346 if (result == 0)
2347 return MZ_OK;
2348 }
2349
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002350 /* Search all entries starting at the first */
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002351 err = mz_zip_goto_first_entry(handle);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002352 while (err == MZ_OK) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002353 result = mz_zip_path_compare(zip->file_info.filename, filename, ignore_case);
2354 if (result == 0)
2355 return MZ_OK;
2356
2357 err = mz_zip_goto_next_entry(handle);
2358 }
2359
2360 return err;
2361}
2362
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002363int32_t mz_zip_locate_first_entry(void *handle, void *userdata, mz_zip_locate_entry_cb cb) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002364 mz_zip *zip = (mz_zip *)handle;
2365 int32_t err = MZ_OK;
2366 int32_t result = 0;
2367
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002368 /* Search first entry looking for match */
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002369 err = mz_zip_goto_first_entry(handle);
2370 if (err != MZ_OK)
2371 return err;
2372
2373 result = cb(handle, userdata, &zip->file_info);
2374 if (result == 0)
2375 return MZ_OK;
2376
2377 return mz_zip_locate_next_entry(handle, userdata, cb);
2378}
2379
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002380int32_t mz_zip_locate_next_entry(void *handle, void *userdata, mz_zip_locate_entry_cb cb) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002381 mz_zip *zip = (mz_zip *)handle;
2382 int32_t err = MZ_OK;
2383 int32_t result = 0;
2384
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002385 /* Search next entries looking for match */
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002386 err = mz_zip_goto_next_entry(handle);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002387 while (err == MZ_OK) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002388 result = cb(handle, userdata, &zip->file_info);
Nathan Moinvaziri8f67ff92017-10-17 23:22:29 -07002389 if (result == 0)
2390 return MZ_OK;
2391
2392 err = mz_zip_goto_next_entry(handle);
2393 }
2394
2395 return err;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002396}
2397
2398/***************************************************************************/
2399
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002400int32_t mz_zip_attrib_is_dir(uint32_t attrib, int32_t version_madeby) {
Nathan Moinvaziri2bb21d72018-10-08 21:47:15 -07002401 uint32_t posix_attrib = 0;
Nathan Moinvaziri904c4082018-10-08 23:31:21 -07002402 uint8_t system = MZ_HOST_SYSTEM(version_madeby);
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002403 int32_t err = MZ_OK;
Nathan Moinvaziribb3b75b2018-05-02 10:48:51 -07002404
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002405 err = mz_zip_attrib_convert(system, attrib, MZ_HOST_SYSTEM_UNIX, &posix_attrib);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002406 if (err == MZ_OK) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002407 if ((posix_attrib & 0170000) == 0040000) /* S_ISDIR */
Nathan Moinvaziribb3b75b2018-05-02 10:48:51 -07002408 return MZ_OK;
2409 }
2410
2411 return MZ_EXIST_ERROR;
2412}
2413
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002414int32_t mz_zip_attrib_is_symlink(uint32_t attrib, int32_t version_madeby) {
Nathan Moinvaziri426543d2019-05-07 09:46:25 -07002415 uint32_t posix_attrib = 0;
2416 uint8_t system = MZ_HOST_SYSTEM(version_madeby);
2417 int32_t err = MZ_OK;
2418
2419 err = mz_zip_attrib_convert(system, attrib, MZ_HOST_SYSTEM_UNIX, &posix_attrib);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002420 if (err == MZ_OK) {
Nathan Moinvaziri426543d2019-05-07 09:46:25 -07002421 if ((posix_attrib & 0170000) == 0120000) /* S_ISLNK */
2422 return MZ_OK;
2423 }
2424
2425 return MZ_EXIST_ERROR;
2426}
2427
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002428int32_t mz_zip_attrib_convert(uint8_t src_sys, uint32_t src_attrib, uint8_t target_sys, uint32_t *target_attrib) {
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002429 if (target_attrib == NULL)
2430 return MZ_PARAM_ERROR;
2431
2432 *target_attrib = 0;
2433
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002434 if ((src_sys == MZ_HOST_SYSTEM_MSDOS) || (src_sys == MZ_HOST_SYSTEM_WINDOWS_NTFS)) {
2435 if ((target_sys == MZ_HOST_SYSTEM_MSDOS) || (target_sys == MZ_HOST_SYSTEM_WINDOWS_NTFS)) {
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002436 *target_attrib = src_attrib;
2437 return MZ_OK;
2438 }
Cameron Cawley28f78ff2019-08-06 14:14:14 +01002439 if ((target_sys == MZ_HOST_SYSTEM_UNIX) || (target_sys == MZ_HOST_SYSTEM_OSX_DARWIN) || (target_sys == MZ_HOST_SYSTEM_RISCOS))
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002440 return mz_zip_attrib_win32_to_posix(src_attrib, target_attrib);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002441 } else if ((src_sys == MZ_HOST_SYSTEM_UNIX) || (src_sys == MZ_HOST_SYSTEM_OSX_DARWIN) || (src_sys == MZ_HOST_SYSTEM_RISCOS)) {
2442 if ((target_sys == MZ_HOST_SYSTEM_UNIX) || (target_sys == MZ_HOST_SYSTEM_OSX_DARWIN) || (target_sys == MZ_HOST_SYSTEM_RISCOS)) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002443 /* If high bytes are set, it contains unix specific attributes */
Nathan Moinvaziri2bb21d72018-10-08 21:47:15 -07002444 if ((src_attrib >> 16) != 0)
2445 src_attrib >>= 16;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002446
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002447 *target_attrib = src_attrib;
2448 return MZ_OK;
2449 }
Nathan Moinvaziri2bb21d72018-10-08 21:47:15 -07002450 if ((target_sys == MZ_HOST_SYSTEM_MSDOS) || (target_sys == MZ_HOST_SYSTEM_WINDOWS_NTFS))
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002451 return mz_zip_attrib_posix_to_win32(src_attrib, target_attrib);
2452 }
2453
2454 return MZ_SUPPORT_ERROR;
2455}
2456
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002457int32_t mz_zip_attrib_posix_to_win32(uint32_t posix_attrib, uint32_t *win32_attrib) {
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002458 if (win32_attrib == NULL)
2459 return MZ_PARAM_ERROR;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002460
Nathan Moinvaziri2bb21d72018-10-08 21:47:15 -07002461 *win32_attrib = 0;
Nathan Moinvaziri32fd8052019-07-04 10:32:02 -07002462
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002463 /* S_IWUSR | S_IWGRP | S_IWOTH | S_IXUSR | S_IXGRP | S_IXOTH */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002464 if ((posix_attrib & 0000333) == 0 && (posix_attrib & 0000444) != 0)
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002465 *win32_attrib |= 0x01; /* FILE_ATTRIBUTE_READONLY */
Nathan Moinvaziri426543d2019-05-07 09:46:25 -07002466 /* S_IFLNK */
2467 if ((posix_attrib & 0170000) == 0120000)
2468 *win32_attrib |= 0x400; /* FILE_ATTRIBUTE_REPARSE_POINT */
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002469 /* S_IFDIR */
Nathan Moinvaziri7d94b1f2019-05-08 23:41:47 -07002470 else if ((posix_attrib & 0170000) == 0040000)
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002471 *win32_attrib |= 0x10; /* FILE_ATTRIBUTE_DIRECTORY */
2472 /* S_IFREG */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002473 else
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002474 *win32_attrib |= 0x80; /* FILE_ATTRIBUTE_NORMAL */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002475
2476 return MZ_OK;
2477}
2478
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002479int32_t mz_zip_attrib_win32_to_posix(uint32_t win32_attrib, uint32_t *posix_attrib) {
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002480 if (posix_attrib == NULL)
2481 return MZ_PARAM_ERROR;
2482
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002483 *posix_attrib = 0000444; /* S_IRUSR | S_IRGRP | S_IROTH */
2484 /* FILE_ATTRIBUTE_READONLY */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002485 if ((win32_attrib & 0x01) == 0)
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002486 *posix_attrib |= 0000222; /* S_IWUSR | S_IWGRP | S_IWOTH */
Nathan Moinvaziri426543d2019-05-07 09:46:25 -07002487 /* FILE_ATTRIBUTE_REPARSE_POINT */
2488 if ((win32_attrib & 0x400) == 0x400)
2489 *posix_attrib |= 0120000; /* S_IFLNK */
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002490 /* FILE_ATTRIBUTE_DIRECTORY */
Nathan Moinvaziri7d94b1f2019-05-08 23:41:47 -07002491 else if ((win32_attrib & 0x10) == 0x10)
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002492 *posix_attrib |= 0040111; /* S_IFDIR | S_IXUSR | S_IXGRP | S_IXOTH */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002493 else
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002494 *posix_attrib |= 0100000; /* S_IFREG */
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002495
2496 return MZ_OK;
2497}
2498
Nathan Moinvaziribb3b75b2018-05-02 10:48:51 -07002499/***************************************************************************/
2500
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002501int32_t mz_zip_extrafield_find(void *stream, uint16_t type, uint16_t *length) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002502 int32_t err = MZ_OK;
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002503 uint16_t field_type = 0;
2504 uint16_t field_length = 0;
2505
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002506 do {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002507 err = mz_stream_read_uint16(stream, &field_type);
2508 if (err == MZ_OK)
2509 err = mz_stream_read_uint16(stream, &field_length);
2510 if (err != MZ_OK)
2511 break;
2512
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002513 if (type == field_type) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002514 if (length != NULL)
2515 *length = field_length;
2516 return MZ_OK;
2517 }
2518
Nathan Moinvaziri0dfcdf92018-11-07 20:33:47 -08002519 err = mz_stream_seek(stream, field_length, MZ_SEEK_CUR);
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002520 } while (err == MZ_OK);
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002521
2522 return MZ_EXIST_ERROR;
2523}
2524
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002525int32_t mz_zip_extrafield_contains(const uint8_t *extrafield, int32_t extrafield_size,
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002526 uint16_t type, uint16_t *length) {
Nathan Moinvaziriba1db162018-11-23 10:07:35 -08002527 void *file_extra_stream = NULL;
2528 int32_t err = MZ_OK;
2529
2530 if (extrafield == NULL || extrafield_size == 0)
2531 return MZ_PARAM_ERROR;
2532
2533 mz_stream_mem_create(&file_extra_stream);
2534 mz_stream_mem_set_buffer(file_extra_stream, (void *)extrafield, extrafield_size);
2535
2536 err = mz_zip_extrafield_find(file_extra_stream, type, length);
2537
2538 mz_stream_mem_delete(&file_extra_stream);
2539
2540 return err;
2541}
2542
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002543int32_t mz_zip_extrafield_read(void *stream, uint16_t *type, uint16_t *length) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002544 int32_t err = MZ_OK;
2545 if (type == NULL || length == NULL)
2546 return MZ_PARAM_ERROR;
2547 err = mz_stream_read_uint16(stream, type);
2548 if (err == MZ_OK)
2549 err = mz_stream_read_uint16(stream, length);
2550 return err;
2551}
2552
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002553int32_t mz_zip_extrafield_write(void *stream, uint16_t type, uint16_t length) {
Nathan Moinvazirie1f68fc2018-10-23 09:04:04 -07002554 int32_t err = MZ_OK;
2555 err = mz_stream_write_uint16(stream, type);
2556 if (err == MZ_OK)
2557 err = mz_stream_write_uint16(stream, length);
2558 return err;
2559}
2560
2561/***************************************************************************/
2562
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002563static int32_t mz_zip_invalid_date(const struct tm *ptm) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002564#define datevalue_in_range(min, max, value) ((min) <= (value) && (value) <= (max))
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002565 return (!datevalue_in_range(0, 127 + 80, ptm->tm_year) || /* 1980-based year, allow 80 extra */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002566 !datevalue_in_range(0, 11, ptm->tm_mon) ||
2567 !datevalue_in_range(1, 31, ptm->tm_mday) ||
2568 !datevalue_in_range(0, 23, ptm->tm_hour) ||
2569 !datevalue_in_range(0, 59, ptm->tm_min) ||
2570 !datevalue_in_range(0, 59, ptm->tm_sec));
2571#undef datevalue_in_range
2572}
2573
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002574static void mz_zip_dosdate_to_raw_tm(uint64_t dos_date, struct tm *ptm) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002575 uint64_t date = (uint64_t)(dos_date >> 16);
2576
Nathan Moinvaziri1d6d1832018-11-10 09:03:55 -08002577 ptm->tm_mday = (uint16_t)(date & 0x1f);
2578 ptm->tm_mon = (uint16_t)(((date & 0x1E0) / 0x20) - 1);
2579 ptm->tm_year = (uint16_t)(((date & 0x0FE00) / 0x0200) + 80);
2580 ptm->tm_hour = (uint16_t)((dos_date & 0xF800) / 0x800);
2581 ptm->tm_min = (uint16_t)((dos_date & 0x7E0) / 0x20);
2582 ptm->tm_sec = (uint16_t)(2 * (dos_date & 0x1f));
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002583 ptm->tm_isdst = -1;
2584}
2585
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002586int32_t mz_zip_dosdate_to_tm(uint64_t dos_date, struct tm *ptm) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002587 if (ptm == NULL)
2588 return MZ_PARAM_ERROR;
2589
2590 mz_zip_dosdate_to_raw_tm(dos_date, ptm);
2591
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002592 if (mz_zip_invalid_date(ptm)) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002593 /* Invalid date stored, so don't return it */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002594 memset(ptm, 0, sizeof(struct tm));
2595 return MZ_FORMAT_ERROR;
2596 }
2597 return MZ_OK;
2598}
2599
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002600time_t mz_zip_dosdate_to_time_t(uint64_t dos_date) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002601 struct tm ptm;
2602 mz_zip_dosdate_to_raw_tm(dos_date, &ptm);
2603 return mktime(&ptm);
2604}
2605
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002606int32_t mz_zip_time_t_to_tm(time_t unix_time, struct tm *ptm) {
Nathan Moinvaziricd3e9e12019-04-28 10:22:49 -07002607 struct tm ltm;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002608 if (ptm == NULL)
2609 return MZ_PARAM_ERROR;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002610 if (localtime_r(&unix_time, &ltm) == NULL) { /* Returns a 1900-based year */
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002611 /* Invalid date stored, so don't return it */
Viktor Szakatsce26dba2018-04-22 19:30:34 +00002612 memset(ptm, 0, sizeof(struct tm));
Nathan Moinvaziri17fcdcd2017-10-26 08:13:13 -07002613 return MZ_INTERNAL_ERROR;
Viktor Szakatsce26dba2018-04-22 19:30:34 +00002614 }
Nathan Moinvaziricd3e9e12019-04-28 10:22:49 -07002615 memcpy(ptm, &ltm, sizeof(struct tm));
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002616 return MZ_OK;
2617}
2618
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002619uint32_t mz_zip_time_t_to_dos_date(time_t unix_time) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002620 struct tm ptm;
2621 mz_zip_time_t_to_tm(unix_time, &ptm);
2622 return mz_zip_tm_to_dosdate((const struct tm *)&ptm);
2623}
2624
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002625uint32_t mz_zip_tm_to_dosdate(const struct tm *ptm) {
Nathan Moinvazirie33916b2018-05-01 13:45:08 -07002626 struct tm fixed_tm;
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002627
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002628 /* Years supported: */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002629
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002630 /* [00, 79] (assumed to be between 2000 and 2079) */
2631 /* [80, 207] (assumed to be between 1980 and 2107, typical output of old */
2632 /* software that does 'year-1900' to get a double digit year) */
2633 /* [1980, 2107] (due to format limitations, only years 1980-2107 can be stored.) */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002634
2635 memcpy(&fixed_tm, ptm, sizeof(struct tm));
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002636 if (fixed_tm.tm_year >= 1980) /* range [1980, 2107] */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002637 fixed_tm.tm_year -= 1980;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002638 else if (fixed_tm.tm_year >= 80) /* range [80, 207] */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002639 fixed_tm.tm_year -= 80;
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002640 else /* range [00, 79] */
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002641 fixed_tm.tm_year += 20;
2642
Viktor Szakatsce26dba2018-04-22 19:30:34 +00002643 if (mz_zip_invalid_date(&fixed_tm))
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002644 return 0;
2645
Anand K Mistry57b65f82018-11-09 10:52:19 +11002646 return (((uint32_t)fixed_tm.tm_mday + (32 * ((uint32_t)fixed_tm.tm_mon + 1)) + (512 * (uint32_t)fixed_tm.tm_year)) << 16) |
Nathan Moinvaziri904c4082018-10-08 23:31:21 -07002647 (((uint32_t)fixed_tm.tm_sec / 2) + (32 * (uint32_t)fixed_tm.tm_min) + (2048 * (uint32_t)fixed_tm.tm_hour));
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002648}
2649
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002650int32_t mz_zip_ntfs_to_unix_time(uint64_t ntfs_time, time_t *unix_time) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002651 *unix_time = (time_t)((ntfs_time - 116444736000000000LL) / 10000000);
2652 return MZ_OK;
2653}
2654
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002655int32_t mz_zip_unix_to_ntfs_time(time_t unix_time, uint64_t *ntfs_time) {
Nathan Moinvaziri9eab88e2017-10-22 14:32:37 -07002656 *ntfs_time = ((uint64_t)unix_time * 10000000) + 116444736000000000LL;
2657 return MZ_OK;
2658}
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002659
Nathan Moinvaziri4b8e4b32018-08-20 09:06:23 -07002660/***************************************************************************/
2661
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002662int32_t mz_zip_path_compare(const char *path1, const char *path2, uint8_t ignore_case) {
2663 do {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002664 if ((*path1 == '\\' && *path2 == '/') ||
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002665 (*path2 == '\\' && *path1 == '/')) {
Nathan Moinvazirib16ab562018-11-20 16:56:21 -08002666 /* Ignore comparison of path slashes */
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002667 } else if (ignore_case) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002668 if (tolower(*path1) != tolower(*path2))
2669 break;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002670 } else if (*path1 != *path2) {
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002671 break;
2672 }
2673
2674 path1 += 1;
2675 path2 += 1;
Nathan Moinvaziridc6962b2020-06-14 15:19:14 -07002676 } while (*path1 != 0 && *path2 != 0);
Nathan Moinvaziri9a170d42018-08-13 23:07:42 -07002677
2678 if (ignore_case)
2679 return (int32_t)(tolower(*path1) - tolower(*path2));
2680
2681 return (int32_t)(*path1 - *path2);
2682}
2683
2684/***************************************************************************/
Nathan Moinvaziric4668ed2020-10-25 11:56:19 -07002685
2686const char* mz_zip_get_compression_method_string(int32_t compression_method)
2687{
2688 const char *method = "?";
Nathan Moinvaziri5cd28792020-10-25 12:50:12 -07002689 switch (compression_method) {
Nathan Moinvaziric4668ed2020-10-25 11:56:19 -07002690 case MZ_COMPRESS_METHOD_STORE:
2691 method = "stored";
2692 break;
2693 case MZ_COMPRESS_METHOD_DEFLATE:
2694 method = "deflate";
2695 break;
2696 case MZ_COMPRESS_METHOD_BZIP2:
2697 method = "bzip2";
2698 break;
2699 case MZ_COMPRESS_METHOD_LZMA:
2700 method = "lzma";
2701 break;
2702 case MZ_COMPRESS_METHOD_XZ:
2703 method = "xz";
2704 break;
2705 case MZ_COMPRESS_METHOD_ZSTD:
2706 method = "zstd";
2707 break;
2708 }
2709 return method;
2710}
2711
2712/***************************************************************************/