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617 lines (508 loc) · 19.8 KB
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/* mz_compat.c -- Backwards compatible interface for older versions
part of the MiniZip project
Copyright (C) 2012-2017 Nathan Moinvaziri
https://github.com/nmoinvaz/minizip
Copyright (C) 1998-2010 Gilles Vollant
http://www.winimage.com/zLibDll/minizip.html
This program is distributed under the terms of the same license as zlib.
See the accompanying LICENSE file for the full text of the license.
*/
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "mz_error.h"
#include "mz_os.h"
#include "mz_strm.h"
#include "mz_strm_zlib.h"
#include "mz_zip.h"
#include "mz_unzip.h"
#include "mz_compat.h"
/***************************************************************************/
typedef struct mz_compat_s {
void *stream;
void *handle;
} mz_compat;
/***************************************************************************/
extern zipFile ZEXPORT zipOpen(const char *path, int append)
{
return zipOpen2(path, append, NULL, mz_stream_os_get_interface());
}
extern zipFile ZEXPORT zipOpen64(const void *path, int append)
{
return zipOpen2(path, append, NULL, mz_stream_os_get_interface());
}
extern zipFile ZEXPORT zipOpen2(const char *path, int append, const char **globalcomment,
zlib_filefunc_def *pzlib_filefunc_def)
{
return zipOpen2_64(path, append, globalcomment, pzlib_filefunc_def);
}
extern zipFile ZEXPORT zipOpen2_64(const void *path, int append, const char **globalcomment,
zlib_filefunc64_def *pzlib_filefunc_def)
{
mz_compat *compat = NULL;
int32_t mode = MZ_STREAM_MODE_READWRITE;
int32_t open_existing = 0;
int16_t err = MZ_OK;
void *handle = NULL;
void *stream = NULL;
if (mz_stream_create(&stream, (mz_stream_vtbl *)pzlib_filefunc_def) == NULL)
return NULL;
switch (append)
{
case APPEND_STATUS_CREATE:
mode |= MZ_STREAM_MODE_CREATE;
break;
case APPEND_STATUS_CREATEAFTER:
mode |= MZ_STREAM_MODE_CREATE | MZ_STREAM_MODE_APPEND;
break;
case APPEND_STATUS_ADDINZIP:
open_existing = 1;
break;
}
if (mz_stream_open(stream, path, mode) != MZ_OK)
{
mz_stream_delete(&stream);
return NULL;
}
handle = mz_zip_open(open_existing, stream);
if (handle == NULL)
{
mz_stream_delete(&stream);
return NULL;
}
if (globalcomment != NULL)
mz_zip_get_global_comment(handle, globalcomment);
compat = (mz_compat *)malloc(sizeof(mz_compat));
compat->handle = handle;
compat->stream = stream;
return (zipFile)compat;
}
extern int ZEXPORT zipOpenNewFileInZip5(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
ZIP_UNUSED uint32_t crc_for_crypting, uint16_t version_madeby, uint16_t flag_base, int zip64)
{
mz_compat *compat = (mz_compat *)file;
mz_zip_file file_info;
if (compat == NULL)
return MZ_PARAM_ERROR;
if (zipfi != NULL)
{
file_info.dos_date = zipfi->dos_date;
file_info.external_fa = zipfi->external_fa;
file_info.internal_fa = zipfi->internal_fa;
}
file_info.filename = filename;
file_info.extrafield_local = extrafield_local;
file_info.extrafield_local_size = size_extrafield_local;
file_info.extrafield_global = extrafield_global;
file_info.extrafield_global_size = size_extrafield_global;
file_info.version_madeby = version_madeby;
file_info.comment = comment;
file_info.flag = flag_base;
file_info.zip64 = zip64;
mz_zip_compress compress_info;
compress_info.level = level;
compress_info.window_bits = windowBits;
compress_info.mem_level = memLevel;
compress_info.strategy = strategy;
compress_info.method = compression_method;
mz_zip_crypt crypt_info;
#ifdef HAVE_AES
crypt_info.aes = 1;
#endif
crypt_info.password = password;
return mz_zip_entry_open(compat->handle, &file_info, &compress_info, &crypt_info);
}
extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
ZIP_UNUSED uint32_t crc_for_crypting, uint16_t version_madeby, uint16_t flag_base, int zip64)
{
return zipOpenNewFileInZip5(file, filename, zipfi, extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global, comment, compression_method, level, raw, windowBits,
memLevel, strategy, password, crc_for_crypting, version_madeby, flag_base, zip64);
}
extern int ZEXPORT zipOpenNewFileInZip4(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
ZIP_UNUSED uint32_t crc_for_crypting, uint16_t version_madeby, uint16_t flag_base)
{
return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global, comment, compression_method, level, raw, windowBits,
memLevel, strategy, password, crc_for_crypting, version_madeby, flag_base, 0);
}
extern int ZEXPORT zipOpenNewFileInZip3(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
ZIP_UNUSED uint32_t crc_for_crypting)
{
return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global, comment, compression_method, level, raw, windowBits,
memLevel, strategy, password, crc_for_crypting, MZ_VERSION_MADEBY, 0, 0);
}
extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char *filename, const zip_fileinfo *zipfi,
const void *extrafield_local, uint16_t size_extrafield_local, const void *extrafield_global,
uint16_t size_extrafield_global, const char *comment, uint16_t compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
ZIP_UNUSED uint32_t crc_for_crypting, int zip64)
{
return zipOpenNewFileInZip4_64(file, filename, zipfi, extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global, comment, compression_method, level, raw, windowBits,
memLevel, strategy, password, crc_for_crypting, MZ_VERSION_MADEBY, 0, zip64);
}
extern int ZEXPORT zipWriteInFileInZip(zipFile file, const void *buf, uint32_t len)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_zip_entry_write(compat->handle, buf, len);
}
extern int ZEXPORT zipCloseFileInZipRaw(zipFile file, uint32_t uncompressed_size, uint32_t crc32)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_zip_entry_close_raw(compat->handle, uncompressed_size, crc32);
}
extern int ZEXPORT zipCloseFileInZip(zipFile file)
{
return zipCloseFileInZipRaw(file, 0, 0);
}
extern int ZEXPORT zipCloseFileInZip64(zipFile file)
{
return zipCloseFileInZipRaw(file, 0, 0);
}
extern int ZEXPORT zipClose(zipFile file, const char *global_comment)
{
return zipClose_64(file, global_comment);
}
extern int ZEXPORT zipClose_64(zipFile file, const char *global_comment)
{
return zipClose2_64(file, global_comment, MZ_VERSION_MADEBY);
}
extern int ZEXPORT zipClose2_64(zipFile file, const char *global_comment, uint16_t version_madeby)
{
mz_compat *compat = (mz_compat *)file;
int16_t err = MZ_OK;
if (compat == NULL)
return MZ_PARAM_ERROR;
err = mz_zip_close(compat->handle, global_comment, version_madeby);
if (compat->stream != NULL)
mz_stream_delete(&compat->stream);
free(compat);
return err;
}
/***************************************************************************/
extern unzFile ZEXPORT unzOpen(const char *path)
{
return unzOpen64(path);
}
extern unzFile ZEXPORT unzOpen64(const void *path)
{
return unzOpen2(path, mz_stream_os_get_interface());
}
extern unzFile ZEXPORT unzOpen2(const char *path, zlib_filefunc_def *pzlib_filefunc_def)
{
return unzOpen2_64(path, pzlib_filefunc_def);
}
extern unzFile ZEXPORT unzOpen2_64(const void *path, zlib_filefunc64_def *pzlib_filefunc_def)
{
mz_compat *compat = NULL;
int32_t mode = MZ_STREAM_MODE_READ;
int32_t open_existing = 0;
int16_t err = MZ_OK;
void *handle = NULL;
void *stream = NULL;
if (mz_stream_create(&stream, (mz_stream_vtbl *)pzlib_filefunc_def) == NULL)
return NULL;
if (mz_stream_open(stream, path, mode) != MZ_OK)
{
mz_stream_delete(&stream);
return NULL;
}
handle = mz_unzip_open(stream);
if (handle == NULL)
{
mz_stream_delete(&stream);
return NULL;
}
compat = (mz_compat *)malloc(sizeof(mz_compat));
compat->handle = handle;
compat->stream = stream;
return (unzFile)compat;
}
extern int ZEXPORT unzClose(unzFile file)
{
mz_compat *compat = (mz_compat *)file;
int16_t err = MZ_OK;
if (compat == NULL)
return MZ_PARAM_ERROR;
err = mz_unzip_close(compat->handle);
if (compat->stream != NULL)
mz_stream_delete(&compat->stream);
free(compat);
return err;
}
extern int ZEXPORT unzGetGlobalInfo(unzFile file, unz_global_info* pglobal_info32)
{
mz_compat *compat = (mz_compat *)file;
unz_global_info64 global_info64;
int16_t err = MZ_OK;
if (compat == NULL)
return MZ_PARAM_ERROR;
err = unzGetGlobalInfo64(file, &global_info64);
if (err != UNZ_OK)
{
pglobal_info32->number_entry = (uint32_t)global_info64.number_entry;
pglobal_info32->size_comment = global_info64.size_comment;
pglobal_info32->number_disk_with_CD = global_info64.number_disk_with_CD;
}
return MZ_OK;
}
extern int ZEXPORT unzGetGlobalInfo64(unzFile file, unz_global_info64 *pglobal_info)
{
mz_compat *compat = (mz_compat *)file;
mz_unzip_global global_info;
int16_t err = MZ_OK;
if (compat == NULL)
return MZ_PARAM_ERROR;
err = mz_unzip_get_global_info(compat->handle, &global_info);
if (err == MZ_OK)
{
pglobal_info->size_comment = global_info.comment_size;
pglobal_info->number_entry = global_info.number_entry;
pglobal_info->number_disk_with_CD = global_info.number_disk_with_CD;
}
return err;
}
extern int ZEXPORT unzGetGlobalComment(unzFile file, char *comment, uint16_t comment_size)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_unzip_get_global_comment(compat->handle, comment, comment_size);
}
extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int *method, int *level, int raw, const char *password)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
if (method != NULL)
*method = 0;
if (level != NULL)
*level = 0;
return mz_unzip_entry_open(compat->handle, raw, password);
}
extern int ZEXPORT unzOpenCurrentFile(unzFile file)
{
return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
}
extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, const char *password)
{
return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
}
extern int ZEXPORT unzOpenCurrentFile2(unzFile file, int *method, int *level, int raw)
{
return unzOpenCurrentFile3(file, method, level, raw, NULL);
}
extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, uint32_t len)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_unzip_entry_read(compat->handle, buf, len);
}
extern int ZEXPORT unzCloseCurrentFile(unzFile file)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_unzip_entry_close(compat->handle);
}
extern int ZEXPORT unzGetCurrentFileInfo(unzFile file, unz_file_info *pfile_info, char *filename,
uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size)
{
mz_compat *compat = (mz_compat *)file;
mz_unzip_file *file_info = NULL;
int16_t bytes_to_copy = 0;
int16_t err = MZ_OK;
if (compat == NULL)
return MZ_PARAM_ERROR;
err = mz_unzip_entry_get_info(compat->handle, &file_info);
if ((err == MZ_OK) && (pfile_info != NULL))
{
pfile_info->version = file_info->version;
pfile_info->version_needed = file_info->version_needed;
pfile_info->flag = file_info->flag;
pfile_info->compression_method = file_info->compression_method;
pfile_info->dos_date = file_info->dos_date;
pfile_info->crc = file_info->crc;
pfile_info->size_filename = file_info->filename_size;
pfile_info->size_file_extra = file_info->extrafield_size;
pfile_info->size_file_comment = file_info->comment_size;
pfile_info->disk_num_start = (uint16_t)file_info->disk_num_start;
pfile_info->internal_fa = file_info->internal_fa;
pfile_info->external_fa = file_info->external_fa;
pfile_info->compressed_size = (uint32_t)file_info->compressed_size;
pfile_info->uncompressed_size = (uint32_t)file_info->uncompressed_size;
if (filename_size > 0 && filename != NULL)
{
bytes_to_copy = filename_size;
if (bytes_to_copy > file_info->filename_size)
bytes_to_copy = file_info->filename_size;
memcpy(filename, file_info->filename, bytes_to_copy);
}
if (extrafield_size > 0 && extrafield != NULL)
{
bytes_to_copy = extrafield_size;
if (bytes_to_copy > file_info->extrafield_size)
bytes_to_copy = file_info->extrafield_size;
memcpy(extrafield, file_info->extrafield, bytes_to_copy);
}
if (comment_size > 0 && comment != NULL)
{
bytes_to_copy = comment_size;
if (bytes_to_copy > file_info->comment_size)
bytes_to_copy = file_info->comment_size;
memcpy(comment, file_info->comment, bytes_to_copy);
}
}
return err;
}
extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file, unz_file_info64 * pfile_info, char *filename,
uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size)
{
mz_compat *compat = (mz_compat *)file;
mz_unzip_file *file_info = NULL;
int16_t bytes_to_copy = 0;
int16_t err = MZ_OK;
if (compat == NULL)
return MZ_PARAM_ERROR;
err = mz_unzip_entry_get_info(compat->handle, &file_info);
if ((err == MZ_OK) && (pfile_info != NULL))
{
pfile_info->version = file_info->version;
pfile_info->version_needed = file_info->version_needed;
pfile_info->flag = file_info->flag;
pfile_info->compression_method = file_info->compression_method;
pfile_info->dos_date = file_info->dos_date;
pfile_info->crc = file_info->crc;
pfile_info->size_filename = file_info->filename_size;
pfile_info->size_file_extra = file_info->extrafield_size;
pfile_info->size_file_comment = file_info->comment_size;
pfile_info->disk_num_start = file_info->disk_num_start;
pfile_info->internal_fa = file_info->internal_fa;
pfile_info->external_fa = file_info->external_fa;
pfile_info->compressed_size = file_info->compressed_size;
pfile_info->uncompressed_size = file_info->uncompressed_size;
if (filename_size > 0 && filename != NULL)
{
bytes_to_copy = filename_size;
if (bytes_to_copy > file_info->filename_size)
bytes_to_copy = file_info->filename_size;
memcpy(filename, file_info->filename, bytes_to_copy);
}
if (extrafield_size > 0 && extrafield != NULL)
{
bytes_to_copy = extrafield_size;
if (bytes_to_copy > file_info->extrafield_size)
bytes_to_copy = file_info->extrafield_size;
memcpy(extrafield, file_info->extrafield, bytes_to_copy);
}
if (comment_size > 0 && comment != NULL)
{
bytes_to_copy = comment_size;
if (bytes_to_copy > file_info->comment_size)
bytes_to_copy = file_info->comment_size;
memcpy(comment, file_info->comment, bytes_to_copy);
}
}
return err;
}
extern int ZEXPORT unzGoToFirstFile(unzFile file)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_unzip_goto_first_entry(compat->handle);
}
extern int ZEXPORT unzGoToNextFile(unzFile file)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_unzip_goto_next_entry(compat->handle);
}
extern int ZEXPORT unzLocateFile(unzFile file, const char *filename, unzFileNameComparer filename_compare_func)
{
mz_compat *compat = (mz_compat *)file;
if (compat == NULL)
return MZ_PARAM_ERROR;
return mz_unzip_locate_entry(compat->handle, filename, filename_compare_func);
}
/***************************************************************************/
void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
{
if (pzlib_filefunc_def != NULL)
pzlib_filefunc_def = mz_stream_os_get_interface();
}
void fill_fopen64_filefunc(zlib_filefunc64_def *pzlib_filefunc_def)
{
if (pzlib_filefunc_def != NULL)
pzlib_filefunc_def = mz_stream_os_get_interface();
}
void fill_win32_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
{
if (pzlib_filefunc_def != NULL)
pzlib_filefunc_def = mz_stream_os_get_interface();
}
void fill_win32_filefunc64(zlib_filefunc64_def *pzlib_filefunc_def)
{
if (pzlib_filefunc_def != NULL)
pzlib_filefunc_def = mz_stream_os_get_interface();
}
void fill_win32_filefunc64A(zlib_filefunc64_def *pzlib_filefunc_def)
{
if (pzlib_filefunc_def != NULL)
pzlib_filefunc_def = mz_stream_os_get_interface();
}
void fill_win32_filefunc64W(zlib_filefunc64_def *pzlib_filefunc_def)
{
// NOTE: You should no longer pass in widechar string to open function
if (pzlib_filefunc_def != NULL)
pzlib_filefunc_def = mz_stream_os_get_interface();
}
/***************************************************************************/
int get_file_crc(const char *path, void *buf, uint32_t buf_size, uint32_t *result_crc)
{
void *stream = NULL;
void *crc32_stream = NULL;
uint32_t read = 0;
int16_t err = MZ_OK;
mz_stream_os_create(&stream);
err = mz_stream_os_open(stream, path, MZ_STREAM_MODE_READ);
mz_stream_crc32_create(&crc32_stream);
mz_stream_crc32_open(crc32_stream, NULL, MZ_STREAM_MODE_READ);
mz_stream_set_base(crc32_stream, stream);
if (err == MZ_OK)
{
do
{
read = mz_stream_crc32_read(crc32_stream, buf, buf_size);
if ((read < buf_size) && (mz_stream_error(crc32_stream) != MZ_OK))
err = read;
}
while ((err == MZ_OK) && (read > 0));
mz_stream_os_close(stream);
}
mz_stream_crc32_close(crc32_stream);
*result_crc = mz_stream_crc32_get_value(crc32_stream);
mz_stream_crc32_delete(&crc32_stream);
mz_stream_os_delete(&stream);
return err;
}