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407 lines (336 loc) · 15.8 KB
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/* zip.c -- Backwards compatible zip interface
part of the minizip-ng project
Copyright (C) Nathan Moinvaziri
https://github.com/zlib-ng/minizip-ng
Copyright (C) 1998-2010 Gilles Vollant
https://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 "mz.h"
#include "mz_os.h"
#include "mz_strm.h"
#include "mz_strm_os.h"
#include "mz_zip.h"
#include "zip.h"
/***************************************************************************/
typedef struct mz_zip_compat_s {
void *stream;
void *handle;
} mz_zip_compat;
/***************************************************************************/
static int32_t zipConvertAppendToStreamMode(int append) {
int32_t mode = MZ_OPEN_MODE_WRITE;
switch (append) {
case APPEND_STATUS_CREATE:
mode |= MZ_OPEN_MODE_CREATE;
break;
case APPEND_STATUS_CREATEAFTER:
mode |= MZ_OPEN_MODE_CREATE | MZ_OPEN_MODE_APPEND;
break;
case APPEND_STATUS_ADDINZIP:
mode |= MZ_OPEN_MODE_READ | MZ_OPEN_MODE_APPEND;
8000
break;
}
return mode;
}
zipFile zipOpen(const char *path, int append) {
return zipOpen2(path, append, NULL, NULL);
}
zipFile zipOpen64(const void *path, int append) {
return zipOpen2(path, append, NULL, NULL);
}
zipFile zipOpen2(const char *path, int append, zipcharpc *globalcomment, zlib_filefunc_def *pzlib_filefunc_def) {
zipFile zip = NULL;
int32_t mode = zipConvertAppendToStreamMode(append);
void *stream = NULL;
if (pzlib_filefunc_def) {
if (pzlib_filefunc_def->zopen_file) {
stream = mz_stream_ioapi_create();
if (!stream)
return NULL;
mz_stream_ioapi_set_filefunc(stream, pzlib_filefunc_def);
} else if (pzlib_filefunc_def->opaque) {
stream = mz_stream_create((mz_stream_vtbl *)pzlib_filefunc_def->opaque);
if (!stream)
return NULL;
}
}
if (!stream) {
stream = mz_stream_os_create();
if (!stream)
return NULL;
}
if (mz_stream_open(stream, path, mode) != MZ_OK) {
mz_stream_delete(&stream);
return NULL;
}
zip = zipOpen_MZ(stream, append, globalcomment);
if (!zip) {
mz_stream_delete(&stream);
return NULL;
}
return zip;
}
zipFile zipOpen2_64(const void *path, int append, zipcharpc *globalcomment, zlib_filefunc64_def *pzlib_filefunc_def) {
zipFile zip = NULL;
int32_t mode = zipConvertAppendToStreamMode(append);
void *stream = NULL;
if (pzlib_filefunc_def) {
if (pzlib_filefunc_def->zopen64_file) {
stream = mz_stream_ioapi_create();
if (!stream)
return NULL;
mz_stream_ioapi_set_filefunc64(stream, pzlib_filefunc_def);
} else if (pzlib_filefunc_def->opaque) {
stream = mz_stream_create((mz_stream_vtbl *)pzlib_filefunc_def->opaque);
if (!stream)
return NULL;
}
}
if (!stream) {
stream = mz_stream_os_create();
if (!stream)
return NULL;
}
if (mz_stream_open(stream, path, mode) != MZ_OK) {
mz_stream_delete(&stream);
return NULL;
}
zip = zipOpen_MZ(stream, append, globalcomment);
if (!zip) {
mz_stream_delete(&stream);
return NULL;
}
return zip;
}
zipFile zipOpen_MZ(void *stream, int append, zipcharpc *globalcomment) {
mz_zip_compat *compat = NULL;
int32_t err = MZ_OK;
int32_t mode = zipConvertAppendToStreamMode(append);
void *handle = NULL;
handle = mz_zip_create();
if (!handle)
return NULL;
err = mz_zip_open(handle, stream, mode);
if (err != MZ_OK) {
mz_zip_delete(&handle);
return NULL;
}
if (globalcomment)
mz_zip_get_comment(handle, globalcomment);
compat = (mz_zip_compat *)calloc(1, sizeof(mz_zip_compat));
if (compat) {
compat->handle = handle;
compat->stream = stream;
} else {
mz_zip_delete(&handle);
}
return (zipFile)compat;
}
void *zipGetHandle_MZ(zipFile file) {
mz_zip_compat *compat = (mz_zip_compat *)file;
if (!compat)
return NULL;
return compat->handle;
}
void *zipGetStream_MZ(zipFile file) {
mz_zip_compat *compat = (mz_zip_compat *)file;
if (!compat)
return NULL;
return (void *)compat->stream;
}
static time_t zipConvertZipDateToTime(tm_zip tmz_date) {
struct tm tm_date;
memset(&tm_date, 0, sizeof(struct tm));
memcpy(&tm_date, &tmz_date, sizeof(tm_zip));
return mz_zip_dosdate_to_time_t(mz_zip_tm_to_dosdate(&tm_date));
}
int 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, int compression_method, int level, int raw, int windowBits, int memLevel,
int strategy, const char *password, unsigned long crc_for_crypting,
unsigned long version_madeby, unsigned long flag_base, int zip64) {
mz_zip_compat *compat = (mz_zip_compat *)file;
mz_zip_file file_info;
MZ_UNUSED(strategy);
MZ_UNUSED(memLevel);
MZ_UNUSED(windowBits);
MZ_UNUSED(size_extrafield_local);
MZ_UNUSED(extrafield_local);
MZ_UNUSED(crc_for_crypting);
if (!compat)
return ZIP_PARAMERROR;
/* The filename and comment length must fit in 16 bits. */
if (filename && strlen(filename) > 0xffff)
return ZIP_PARAMERROR;
if (comment && strlen(comment) > 0xffff)
return ZIP_PARAMERROR;
memset(&file_info, 0, sizeof(file_info));
if (zipfi) {
if (zipfi->mz_dos_date != 0)
file_info.modified_date = mz_zip_dosdate_to_time_t(zipfi->mz_dos_date);
else
file_info.modified_date = zipConvertZipDateToTime(zipfi->tmz_date);
file_info.external_fa = (uint32_t)zipfi->external_fa;
file_info.internal_fa = (uint16_t)zipfi->internal_fa;
}
if (!filename)
filename = "-";
file_info.compression_method = (uint16_t)compression_method;
file_info.filename = filename;
/* file_info.extrafield_local = extrafield_local; */
/* file_info.extrafield_local_size = size_extrafield_local; */
file_info.extrafield = extrafield_global;
file_info.extrafield_size = size_extrafield_global;
file_info.version_madeby = (uint16_t)version_madeby;
file_info.comment = comment;
if (file_info.comment)
file_info.comment_size = (uint16_t)strlen(file_info.comment);
file_info.flag = (uint16_t)flag_base;
if (zip64)
file_info.zip64 = MZ_ZIP64_FORCE;
else
file_info.zip64 = MZ_ZIP64_DISABLE;
#ifdef HAVE_WZAES
if (password || (raw && (file_info.flag & MZ_ZIP_FLAG_ENCRYPTED)))
file_info.aes_version = MZ_AES_VERSION;
#endif
return mz_zip_entry_write_open(compat->handle, &file_info, (int16_t)level, (uint8_t)raw, password);
}
int 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, int compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
unsigned long crc_for_crypting, unsigned long version_madeby, unsigned long 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);
}
int 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, int compression_method, int level, int raw, int windowBits, int memLevel,
int strategy, const char *password, unsigned long crc_for_crypting,
unsigned long version_madeby, unsigned long 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);
}
int 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, int compression_method, int level, int raw, int windowBits, int memLevel,
int strategy, const char *password, unsigned long crc_for_crypting) {
return zipOpenNewFileInZip3_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, 0);
}
int 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, int compression_method, int level,
int raw, int windowBits, int memLevel, int strategy, const char *password,
unsigned long 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);
}
int zipOpenNewFileInZip2(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, int compression_method, int level, int raw) {
return zipOpenNewFileInZip3_64(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
A73F
size_extrafield_global, comment, compression_method, level, raw, 0, 0, 0, NULL, 0,
0);
}
int zipOpenNewFileInZip2_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, int compression_method, int level,
int raw, int zip64) {
return zipOpenNewFileInZip3_64(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
size_extrafield_global, comment, compression_method, level, raw, 0, 0, 0, NULL, 0,
zip64);
}
int zipOpenNewFileInZip(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, int compression_method, int level) {
return zipOpenNewFileInZip_64(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
size_extrafield_global, comment, compression_method, level, 0);
}
int zipOpenNewFileInZip64(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, int compression_method, int level,
int zip64) {
return zipOpenNewFileInZip2_64(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
size_extrafield_global, comment, compression_method, level, 0, zip64);
}
int zipOpenNewFileInZip_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, int compression_method, int level,
int zip64) {
return zipOpenNewFileInZip2_64(file, filename, zipfi, extrafield_local, size_extrafield_local, extrafield_global,
size_extrafield_global, comment, compression_method, level, 0, zip64);
}
int zipWriteInFileInZip(zipFile file, const void *buf, uint32_t len) {
mz_zip_compat *compat = (mz_zip_compat *)file;
int32_t written = 0;
if (!compat || len >= INT32_MAX)
return ZIP_PARAMERROR;
written = mz_zip_entry_write(compat->handle, buf, (int32_t)len);
if ((written < 0) || ((uint32_t)written != len))
return ZIP_ERRNO;
return ZIP_OK;
}
int zipCloseFileInZipRaw(zipFile file, unsigned long uncompressed_size, unsigned long crc32) {
return zipCloseFileInZipRaw64(file, uncompressed_size, crc32);
}
int zipCloseFileInZipRaw64(zipFile file, uint64_t uncompressed_size, unsigned long crc32) {
mz_zip_compat *compat = (mz_zip_compat *)file;
if (!compat)
return ZIP_PARAMERROR;
return mz_zip_entry_close_raw(compat->handle, (int64_t)uncompressed_size, (uint32_t)crc32);
}
int zipCloseFileInZip(zipFile file) {
return zipCloseFileInZip64(file);
}
int zipCloseFileInZip64(zipFile file) {
mz_zip_compat *compat = (mz_zip_compat *)file;
if (!compat)
return ZIP_PARAMERROR;
return mz_zip_entry_close(compat->handle);
}
int zipClose(zipFile file, const char *global_comment) {
return zipClose_64(file, global_comment);
}
int zipClose_64(zipFile file, const char *global_comment) {
return zipClose2_64(file, global_comment, MZ_VERSION_MADEBY);
}
int zipClose2_64(zipFile file, const char *global_comment, uint16_t version_madeby) {
mz_zip_compat *compat = (mz_zip_compat *)file;
int32_t err = MZ_OK;
if (compat->handle)
err = zipClose2_MZ(file, global_comment, version_madeby);
if (compat->stream) {
mz_stream_close(compat->stream);
mz_stream_delete(&compat->stream);
}
free(compat);
return err;
}
/* Only closes the zip handle, does not close the stream */
int zipClose_MZ(zipFile file, const char *global_comment) {
return zipClose2_MZ(file, global_comment, MZ_VERSION_MADEBY);
}
/* Only closes the zip handle, does not close the stream */
int zipClose2_MZ(zipFile file, const char *global_comment, uint16_t version_madeby) {
mz_zip_compat *compat = (mz_zip_compat *)file;
int32_t err = MZ_OK;
if (!compat)
return ZIP_PARAMERROR;
if (!compat->handle)
return err;
if (global_comment)
mz_zip_set_comment(compat->handle, global_comment);
mz_zip_set_version_madeby(compat->handle, version_madeby);
err = mz_zip_close(compat->handle);
mz_zip_delete(&compat->handle);
return err;
}