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1391 lines (1110 loc) · 38.6 KB
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/* mz_zip_rw.c -- Zip reader/writer
Version 2.5.2, August 27, 2018
part of the MiniZip project
Copyright (C) 2010-2018 Nathan Moinvaziri
https://github.com/nmoinvaz/minizip
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 <stdio.h>
#include <time.h>
#include "mz.h"
#include "mz_os.h"
#include "mz_strm.h"
#include "mz_strm_buf.h"
#include "mz_strm_mem.h"
#include "mz_strm_split.h"
#include "mz_zip.h"
#include "mz_zip_rw.h"
/***************************************************************************/
typedef struct mz_zip_reader_s {
void *zip_handle;
void *file_stream;
void *buffered_stream;
void *split_stream;
void *mem_stream;
mz_zip_file *file_info;
const char *pattern;
uint8_t pattern_ignore_case;
const char *password;
void *overwrite_userdata;
mz_zip_reader_overwrite_cb
overwrite_cb;
void *password_userdata;
mz_zip_reader_password_cb
password_cb;
void *progress_userdata;
mz_zip_reader_progress_cb
progress_cb;
void *entry_userdata;
mz_zip_reader_entry_cb
entry_cb;
uint8_t raw;
uint8_t buffer[UINT16_MAX];
uint8_t legacy_encoding;
} mz_zip_reader;
/***************************************************************************/
int32_t mz_zip_reader_is_open(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
if (reader == NULL)
return MZ_PARAM_ERROR;
if (reader->zip_handle == NULL)
return MZ_PARAM_ERROR;
return MZ_OK;
}
int32_t mz_zip_reader_open(void *handle, void *stream)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
mz_zip_create(&reader->zip_handle);
err = mz_zip_open(reader->zip_handle, stream, MZ_OPEN_MODE_READ);
if (err != MZ_OK)
{
mz_zip_reader_close(handle);
return MZ_STREAM_ERROR;
}
return MZ_OK;
}
int32_t mz_zip_reader_open_file(void *handle, const char *path)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
mz_zip_reader_close(handle);
mz_stream_os_create(&reader->file_stream);
mz_stream_buffered_create(&reader->buffered_stream);
mz_stream_split_create(&reader->split_stream);
mz_stream_set_base(reader->buffered_stream, reader->file_stream);
mz_stream_set_base(reader->split_stream, reader->buffered_stream);
err = mz_stream_open(reader->split_stream, path, MZ_OPEN_MODE_READ);
if (err == MZ_OK)
err = mz_zip_reader_open(handle, reader->split_stream);
return err;
}
int32_t mz_zip_reader_open_file_in_memory(void *handle, const char *path)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
void *file_stream = NULL;
int64_t file_size = 0;
int32_t err = 0;
mz_zip_reader_close(handle);
mz_stream_os_create(&file_stream);
err = mz_stream_os_open(file_stream, path, MZ_OPEN_MODE_READ);
if (err != MZ_OK)
{
mz_stream_os_delete(&file_stream);
mz_zip_reader_close(handle);
return err;
}
mz_stream_os_seek(file_stream, 0, SEEK_END);
file_size = mz_stream_os_tell(file_stream);
mz_stream_os_seek(file_stream, 0, SEEK_SET);
if ((file_size <= 0) || (file_size > UINT32_MAX))
{
// Memory size is too large or too small
mz_stream_os_close(file_stream);
mz_stream_os_delete(&file_stream);
mz_zip_reader_close(handle);
return MZ_MEM_ERROR;
}
mz_stream_mem_create(&reader->mem_stream);
mz_stream_mem_set_grow_size(reader->mem_stream, (int32_t)file_size);
mz_stream_mem_open(reader->mem_stream, NULL, MZ_OPEN_MODE_CREATE);
err = mz_stream_copy(reader->mem_stream, file_stream, (int32_t)file_size);
mz_stream_os_close(file_stream);
mz_stream_os_delete(&file_stream);
if (err == MZ_OK)
err = mz_zip_reader_open(handle, reader->mem_stream);
if (err != MZ_OK)
mz_zip_reader_close(handle);
return err;
}
int32_t mz_zip_reader_open_buffer(void *handle, uint8_t *buf, int32_t len, uint8_t copy)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
mz_zip_reader_close(handle);
mz_stream_mem_create(&reader->mem_stream);
if (copy)
{
mz_stream_mem_set_grow_size(reader->mem_stream, len);
mz_stream_mem_open(reader->mem_stream, NULL, MZ_OPEN_MODE_CREATE);
mz_stream_mem_write(reader->mem_stream, buf, len);
mz_stream_mem_seek(reader->mem_stream, 0, SEEK_SET);
}
else
{
mz_stream_mem_open(reader->mem_stream, NULL, MZ_OPEN_MODE_READ);
mz_stream_mem_set_buffer(reader->mem_stream, buf, len);
}
if (err == MZ_OK)
err = mz_zip_reader_open(handle, reader->mem_stream);
return err;
}
int32_t mz_zip_reader_close(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
if (reader->zip_handle != NULL)
{
err = mz_zip_close(reader->zip_handle);
mz_zip_delete(&reader->zip_handle);
}
if (reader->split_stream != NULL)
{
mz_stream_split_close(reader->split_stream);
mz_stream_split_delete(&reader->split_stream);
}
if (reader->buffered_stream != NULL)
mz_stream_buffered_delete(&reader->buffered_stream);
if (reader->file_stream != NULL)
mz_stream_os_delete(&reader->file_stream);
if (reader->mem_stream != NULL)
{
mz_stream_mem_close(reader->mem_stream);
mz_stream_mem_delete(&reader->mem_stream);
}
return err;
}
/***************************************************************************/
static int32_t mz_zip_reader_locate_entry_cb(void *handle, void *userdata, mz_zip_file *file_info)
{
mz_zip_reader *reader = (mz_zip_reader *)userdata;
int32_t result = 0;
result = mz_path_compare_wc(file_info->filename, reader->pattern, reader->pattern_ignore_case);
return result;
}
int32_t mz_zip_reader_goto_first_entry(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
if (mz_zip_reader_is_open(handle) != MZ_OK)
return MZ_PARAM_ERROR;
if (mz_zip_entry_is_open(reader->zip_handle) == MZ_OK)
mz_zip_reader_entry_close(handle);
if (reader->pattern == NULL)
err = mz_zip_goto_first_entry(reader->zip_handle);
else
err = mz_zip_locate_first_entry(reader->zip_handle, reader, mz_zip_reader_locate_entry_cb);
reader->file_info = NULL;
if (err == MZ_OK)
err = mz_zip_entry_get_info(reader->zip_handle, &reader->file_info);
return err;
}
int32_t mz_zip_reader_goto_next_entry(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
if (mz_zip_reader_is_open(handle) != MZ_OK)
return MZ_PARAM_ERROR;
if (mz_zip_entry_is_open(reader->zip_handle) == MZ_OK)
mz_zip_reader_entry_close(handle);
if (reader->pattern == NULL)
err = mz_zip_goto_next_entry(reader->zip_handle);
else
err = mz_zip_locate_next_entry(reader->zip_handle, reader, mz_zip_reader_locate_entry_cb);
reader->file_info = NULL;
if (err == MZ_OK)
err = mz_zip_entry_get_info(reader->zip_handle, &reader->file_info);
return err;
}
int32_t mz_zip_reader_locate_entry(void *handle, const char *filename, uint8_t ignore_case)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
if (mz_zip_entry_is_open(reader->zip_handle) == MZ_OK)
mz_zip_reader_entry_close(handle);
err = mz_zip_locate_entry(reader->zip_handle, filename, ignore_case);
reader->file_info = NULL;
if (err == MZ_OK)
err = mz_zip_entry_get_info(reader->zip_handle, &reader->file_info);
return err;
}
/***************************************************************************/
int32_t mz_zip_reader_entry_open(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
const char *password = NULL;
char password_buf[120];
if (mz_zip_reader_is_open(reader) != MZ_OK)
return MZ_PARAM_ERROR;
if (reader->file_info == NULL)
return MZ_PARAM_ERROR;
// If the entry isn't open for reading, open it
if (mz_zip_entry_is_open(reader->zip_handle) != MZ_OK)
{
password = reader->password;
// Check if we need a password and ask for it if we need to
if ((reader->file_info->flag & MZ_ZIP_FLAG_ENCRYPTED) && (password == NULL) &&
(reader->password_cb != NULL))
{
reader->password_cb(handle, reader->password_userdata, reader->file_info, password_buf, sizeof(password_buf));
password = password_buf;
}
err = mz_zip_entry_read_open(reader->zip_handle, reader->raw, password);
}
return err;
}
int32_t mz_zip_reader_entry_close(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
err = mz_zip_entry_close(reader->zip_handle);
return err;
}
int32_t mz_zip_reader_entry_read(void *handle, const void *buf, int32_t len)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t read = 0;
read = mz_zip_entry_read(reader->zip_handle, (void *)buf, len);
return read;
}
int32_t mz_zip_reader_entry_get_info(void *handle, mz_zip_file **file_info)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
if (file_info == NULL || mz_zip_reader_is_open(handle) != MZ_OK)
return MZ_PARAM_ERROR;
*file_info = reader->file_info;
if (*file_info == NULL)
return MZ_EXIST_ERROR;
return err;
}
int32_t mz_zip_reader_entry_is_dir(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
if (mz_zip_reader_is_open(handle) != MZ_OK)
return MZ_PARAM_ERROR;
return mz_zip_entry_is_dir(reader->zip_handle);
}
int32_t mz_zip_reader_entry_save_process(void *handle, void *stream, mz_stream_write_cb write_cb)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
int32_t read = 0;
int32_t written = 0;
if (mz_zip_reader_is_open(reader) != MZ_OK)
return MZ_PARAM_ERROR;
if (reader->file_info == NULL)
return MZ_PARAM_ERROR;
if (write_cb == NULL)
return MZ_PARAM_ERROR;
// If the entry isn't open for reading, open it
if (mz_zip_entry_is_open(reader->zip_handle) != MZ_OK)
err = mz_zip_reader_entry_open(handle);
if (err != MZ_OK)
return err;
// Unzip entry in zip file
read = mz_zip_reader_entry_read(handle, reader->buffer, sizeof(reader->buffer));
if (read == 0)
{
// If we are done close the entry
err = mz_zip_reader_entry_close(handle);
if (err != MZ_OK)
return err;
return MZ_END_OF_STREAM;
}
if (read > 0)
{
// Write the data to the specified stream
written = write_cb(stream, reader->buffer, read);
if (written != read)
return MZ_STREAM_ERROR;
}
return read;
}
int32_t mz_zip_reader_entry_save(void *handle, void *stream, mz_stream_write_cb write_cb)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int64_t current_pos = 0;
int64_t update_pos = 0;
int32_t err = MZ_OK;
int32_t written = 0;
time_t current_time = time(NULL);
time_t update_time = 0;
if (mz_zip_reader_is_open(reader) != MZ_OK)
return MZ_PARAM_ERROR;
if (reader->file_info == NULL)
return MZ_PARAM_ERROR;
// Update the progress at the beginning
if (reader->progress_cb != NULL)
reader->progress_cb(handle, reader->progress_userdata, reader->file_info, current_pos);
// Write data to stream until done
while (err == MZ_OK)
{
written = mz_zip_reader_entry_save_process(handle, stream, write_cb);
if (written == MZ_END_OF_STREAM)
break;
if (written > 0)
current_pos += written;
if (written < 0)
err = written;
// Every 1 second lets update the progress
current_time = time(NULL);
if ((current_time - update_time) > 1)
{
if (reader->progress_cb != NULL)
reader->progress_cb(handle, reader->progress_userdata, reader->file_info, current_pos);
update_pos = current_pos;
update_time = current_time;
}
}
// Update the progress at the end
if (reader->progress_cb != NULL && update_pos != current_pos)
reader->progress_cb(handle, reader->progress_userdata, reader->file_info, current_pos);
return err;
}
int32_t mz_zip_reader_entry_save_file(void *handle, const char *path)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
void *file_stream = NULL;
int32_t err = MZ_OK;
int32_t err_cb = MZ_OK;
int32_t err_attrib = 0;
int32_t target_attrib = 0;
char directory[512];
if (mz_zip_reader_is_open(reader) != MZ_OK)
return MZ_PARAM_ERROR;
if (reader->file_info == NULL || path == NULL)
return MZ_PARAM_ERROR;
if (reader->entry_cb != NULL)
reader->entry_cb(handle, reader->entry_userdata, reader->file_info, path);
strncpy(directory, path, sizeof(directory));
mz_path_remove_filename(directory);
// If it is a directory entry then create a directory instead of writing file
if (mz_zip_entry_is_dir(reader->zip_handle) == MZ_OK)
{
err = mz_dir_make(directory);
return err;
}
// Check if file exists and ask if we want to overwrite
if ((mz_os_file_exists(path) == MZ_OK) && (reader->overwrite_cb != NULL))
{
err_cb = reader->overwrite_cb(handle, reader->overwrite_userdata, reader->file_info, path);
if (err_cb != MZ_OK)
return err;
}
// Create the output directory if it doesn't already exist
if (mz_os_is_dir(directory) != MZ_OK)
{
err = mz_dir_make(directory);
if (err != MZ_OK)
return err;
}
mz_stream_os_create(&file_stream);
// Create the file on disk so we can save to it
err = mz_stream_os_open(file_stream, path, MZ_OPEN_MODE_CREATE);
if (err == MZ_OK)
err = mz_zip_reader_entry_save(handle, file_stream, mz_stream_os_write);
mz_stream_os_close(file_stream);
mz_stream_os_delete(&file_stream);
if (err == MZ_OK)
{
// Set the time of the file that has been created
mz_os_set_file_date(path, reader->file_info->modified_date,
reader->file_info->accessed_date, reader->file_info->creation_date);
}
if (err == MZ_OK)
{
// Set file attributes for the correct system
err_attrib = mz_zip_attrib_convert(MZ_HOST_SYSTEM(reader->file_info->version_madeby), reader->file_info->external_fa,
MZ_VERSION_MADEBY_HOST_SYSTEM, &target_attrib);
if (err_attrib == MZ_OK)
err_attrib = mz_os_set_file_attribs(path, target_attrib);
}
return err;
}
int32_t mz_zip_reader_entry_save_buffer(void *handle, void *buf, int32_t len)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
void *mem_stream = NULL;
int32_t err = MZ_OK;
if (mz_zip_reader_is_open(reader) != MZ_OK)
return MZ_PARAM_ERROR;
if (reader->file_info == NULL)
return MZ_PARAM_ERROR;
if (reader->file_info->uncompressed_size > INT32_MAX)
return MZ_PARAM_ERROR;
if (len != (int32_t)reader->file_info->uncompressed_size)
return MZ_PARAM_ERROR;
// Create a memory stream backed by our buffer and save to it
mz_stream_mem_create(&mem_stream);
mz_stream_mem_set_buffer(mem_stream, buf, len);
err = mz_stream_mem_open(mem_stream, NULL, MZ_OPEN_MODE_READ);
if (err == MZ_OK)
err = mz_zip_reader_entry_save(handle, mem_stream, mz_stream_mem_write);
mz_stream_mem_delete(&mem_stream);
return err;
}
int32_t mz_zip_reader_entry_save_buffer_length(void *handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
if (mz_zip_reader_is_open(reader) != MZ_OK)
return MZ_PARAM_ERROR;
if (reader->file_info == NULL)
return MZ_PARAM_ERROR;
if (reader->file_info->uncompressed_size > INT32_MAX)
return MZ_PARAM_ERROR;
// Get the maximum size required for the save buffer
return (int32_t)reader->file_info->uncompressed_size;
}
/***************************************************************************/
int32_t mz_zip_reader_save_all(void *handle, const char *destination_dir)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
int32_t err = MZ_OK;
char path[512];
char utf8_name[256];
char resolved_name[256];
err = mz_zip_reader_goto_first_entry(handle);
while (err == MZ_OK)
{
// Construct output path
path[0] = 0;
if ((reader->legacy_encoding) && (reader->file_info->flag & MZ_ZIP_FLAG_UTF8) == 0)
mz_encoding_cp437_to_utf8(reader->file_info->filename, utf8_name, sizeof(utf8_name));
else
strncpy(utf8_name, reader->file_info->filename, sizeof(utf8_name));
err = mz_path_resolve(utf8_name, resolved_name, sizeof(resolved_name));
if (err != MZ_OK)
break;
if (destination_dir != NULL)
mz_path_combine(path, destination_dir, sizeof(path));
mz_path_combine(path, resolved_name, sizeof(path));
// Save file to disk
err = mz_zip_reader_entry_save_file(handle, path);
if (err == MZ_OK)
err = mz_zip_reader_goto_next_entry(handle);
}
if (err == MZ_END_OF_LIST)
return MZ_OK;
return err;
}
/***************************************************************************/
void mz_zip_reader_set_pattern(void *handle, const char *pattern, uint8_t ignore_case)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->pattern = pattern;
reader->pattern_ignore_case = ignore_case;
}
void mz_zip_reader_set_password(void *handle, const char *password)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->password = password;
}
void mz_zip_reader_set_raw(void *handle, uint8_t raw)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->raw = raw;
}
int32_t mz_zip_reader_get_raw(void *handle, uint8_t *raw)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
if (raw == NULL)
return MZ_PARAM_ERROR;
*raw = reader->raw;
return MZ_OK;
}
void mz_zip_reader_set_legacy_encoding(void *handle, uint8_t legacy_encoding)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->legacy_encoding = legacy_encoding;
}
void mz_zip_reader_set_overwrite_cb(void *handle, void *userdata, mz_zip_reader_overwrite_cb cb)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->overwrite_cb = cb;
reader->overwrite_userdata = userdata;
}
void mz_zip_reader_set_password_cb(void *handle, void *userdata, mz_zip_reader_password_cb cb)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->password_cb = cb;
reader->password_userdata = userdata;
}
void mz_zip_reader_set_progress_cb(void *handle, void *userdata, mz_zip_reader_progress_cb cb)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->progress_cb = cb;
reader->progress_userdata = userdata;
}
void mz_zip_reader_set_entry_cb(void *handle, void *userdata, mz_zip_reader_entry_cb cb)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
reader->entry_cb = cb;
reader->entry_userdata = userdata;
}
int32_t mz_zip_reader_get_zip_handle(void *handle, void **zip_handle)
{
mz_zip_reader *reader = (mz_zip_reader *)handle;
if (zip_handle == NULL)
return MZ_PARAM_ERROR;
*zip_handle = reader->zip_handle;
if (*zip_handle == NULL)
return MZ_EXIST_ERROR;
return MZ_OK;
}
/***************************************************************************/
void *mz_zip_reader_create(void **handle)
{
mz_zip_reader *reader = NULL;
reader = (mz_zip_reader *)MZ_ALLOC(sizeof(mz_zip_reader));
if (reader != NULL)
{
memset(reader, 0, sizeof(mz_zip_reader));
}
if (reader != NULL)
*handle = reader;
return reader;
}
void mz_zip_reader_delete(void **handle)
{
mz_zip_reader *reader = NULL;
if (handle == NULL)
return;
reader = (mz_zip_reader *)*handle;
if (reader != NULL)
{
mz_zip_reader_close(reader);
MZ_FREE(reader);
}
*handle = NULL;
}
/***************************************************************************/
typedef struct mz_zip_writer_s {
void *zip_handle;
void *file_stream;
void *buffered_stream;
void *split_stream;
void *mem_stream;
mz_zip_file file_info;
void *overwrite_userdata;
mz_zip_writer_overwrite_cb
overwrite_cb;
void *password_userdata;
mz_zip_writer_password_cb
password_cb;
void *progress_userdata;
mz_zip_writer_progress_cb
progress_cb;
void *entry_userdata;
mz_zip_writer_entry_cb
entry_cb;
const char *password;
int16_t compress_method;
int16_t compress_level;
uint8_t aes;
uint8_t raw;
uint8_t buffer[UINT16_MAX];
} mz_zip_writer;
/***************************************************************************/
int32_t mz_zip_writer_is_open(void *handle)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
if (writer == NULL)
return MZ_PARAM_ERROR;
if (writer->zip_handle == NULL)
return MZ_PARAM_ERROR;
return MZ_OK;
}
static int32_t mz_zip_writer_open_int(void *handle, void *stream, int32_t mode)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t err = MZ_OK;
mz_zip_create(&writer->zip_handle);
err = mz_zip_open(writer->zip_handle, stream, mode);
if (err != MZ_OK)
{
mz_zip_writer_close(handle);
return MZ_STREAM_ERROR;
}
return MZ_OK;
}
int32_t mz_zip_writer_open(void *handle, void *stream)
{
return mz_zip_writer_open_int(handle, stream, 0);
}
int32_t mz_zip_writer_open_file(void *handle, const char *path, int64_t disk_size, uint8_t append)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t mode = MZ_OPEN_MODE_READWRITE;
int32_t err = MZ_OK;
int32_t err_cb = 0;
mz_zip_writer_close(handle);
if (mz_os_file_exists(path) != MZ_OK)
{
// If the file doesn't exist, we don't append file
mode |= MZ_OPEN_MODE_CREATE;
}
else if (append)
{
mode |= MZ_OPEN_MODE_APPEND;
}
else
{
if (writer->overwrite_cb != NULL)
err_cb = writer->overwrite_cb(handle, writer->overwrite_cb, path);
if (err_cb == MZ_INTERNAL_ERROR)
return err;
if (err_cb == MZ_OK)
mode |= MZ_OPEN_MODE_CREATE;
else
mode |= MZ_OPEN_MODE_APPEND;
}
mz_stream_os_create(&writer->file_stream);
mz_stream_buffered_create(&writer->buffered_stream);
mz_stream_split_create(&writer->split_stream);
mz_stream_set_base(writer->buffered_stream, writer->file_stream);
mz_stream_set_base(writer->split_stream, writer->buffered_stream);
mz_stream_split_set_prop_int64(writer->split_stream, MZ_STREAM_PROP_DISK_SIZE, disk_size);
err = mz_stream_open(writer->split_stream, path, mode);
if (err == MZ_OK)
err = mz_zip_writer_open_int(handle, writer->split_stream, mode);
return err;
}
int32_t mz_zip_writer_open_file_in_memory(void *handle, const char *path)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
void *file_stream = NULL;
int64_t file_size = 0;
int32_t err = 0;
mz_zip_writer_close(handle);
mz_stream_os_create(&file_stream);
err = mz_stream_os_open(file_stream, path, MZ_OPEN_MODE_READ);
if (err != MZ_OK)
{
mz_stream_os_delete(&file_stream);
mz_zip_writer_close(handle);
return err;
}
mz_stream_os_seek(file_stream, 0, SEEK_END);
file_size = mz_stream_os_tell(file_stream);
mz_stream_os_seek(file_stream, 0, SEEK_SET);
if ((file_size <= 0) || (file_size > UINT32_MAX))
{
// Memory size is too large or too small
mz_stream_os_close(file_stream);
mz_stream_os_delete(&file_stream);
mz_zip_writer_close(handle);
return MZ_MEM_ERROR;
}
mz_stream_mem_create(&writer->mem_stream);
mz_stream_mem_set_grow_size(writer->mem_stream, (int32_t)file_size);
mz_stream_mem_open(writer->mem_stream, NULL, MZ_OPEN_MODE_CREATE);
err = mz_stream_copy(writer->mem_stream, file_stream, (int32_t)file_size);
mz_stream_os_close(file_stream);
mz_stream_os_delete(&file_stream);
if (err == MZ_OK)
err = mz_zip_writer_open(handle, writer->mem_stream);
if (err != MZ_OK)
mz_zip_writer_close(handle);
return err;
}
int32_t mz_zip_writer_close(void *handle)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t err = MZ_OK;
if (writer->zip_handle != NULL)
{
mz_zip_set_version_madeby(writer->zip_handle, MZ_VERSION_MADEBY);
err = mz_zip_close(writer->zip_handle);
mz_zip_delete(&writer->zip_handle);
}
if (writer->split_stream != NULL)
{
mz_stream_split_close(writer->split_stream);
mz_stream_split_delete(&writer->split_stream);
}
if (writer->buffered_stream != NULL)
mz_stream_buffered_delete(&writer->buffered_stream);
if (writer->file_stream != NULL)
mz_stream_os_delete(&writer->file_stream);
if (writer->mem_stream != NULL)
{
mz_stream_mem_close(writer->mem_stream);
mz_stream_mem_delete(&writer->mem_stream);
}
return err;
}
/***************************************************************************/
int32_t mz_zip_writer_entry_open(void *handle, mz_zip_file *file_info)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t err = MZ_OK;
const char *password = NULL;
char password_buf[120];
memcpy(&writer->file_info, file_info, sizeof(mz_zip_file));
if (writer->entry_cb != NULL)
writer->entry_cb(handle, writer->entry_userdata, &writer->file_info);
password = writer->password;
// Check if we need a password and ask for it if we need to
if ((writer->file_info.flag & MZ_ZIP_FLAG_ENCRYPTED) && (password == NULL) &&
(writer->password_cb != NULL))
{
writer->password_cb(handle, writer->password_userdata, &writer->file_info, password_buf, sizeof(password_buf));
password = password_buf;
}
// Open entry in zip
err = mz_zip_entry_write_open(writer->zip_handle, &writer->file_info, writer->compress_level, writer->raw, password);
return err;
}
int32_t mz_zip_writer_entry_close(void *handle)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t err = MZ_OK;
if (writer->raw)
err = mz_zip_entry_close_raw(writer->zip_handle, writer->file_info.uncompressed_size, writer->file_info.crc);
else
err = mz_zip_entry_close(writer->zip_handle);
return err;
}
int32_t mz_zip_writer_entry_write(void *handle, const void *buf, int32_t len)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t written = 0;
written = mz_zip_entry_write(writer->zip_handle, buf, len);
return written;
}
/***************************************************************************/
int32_t mz_zip_writer_add_process(void *handle, void *stream, mz_stream_read_cb read_cb)
{
mz_zip_writer *writer = (mz_zip_writer *)handle;
int32_t read = 0;
int32_t written = 0;
int32_t err = MZ_OK;
if (mz_zip_writer_is_open(writer) != MZ_OK)
return MZ_PARAM_ERROR;
// If the entry isn't open for writing, open it
if (mz_zip_entry_is_open(writer->zip_handle) != MZ_OK)
return MZ_PARAM_ERROR;
if (read_cb == NULL)
return MZ_PARAM_ERROR;
read = read_cb(stream, writer->buffer, sizeof(writer->buffer));
if (read == 0)
return MZ_END_OF_STREAM;
if (read < 0)
{
err = read;
return err;
}
written = mz_zip_writer_entry_write(handle, writer->buffer, read);
if (written != read)
return MZ_STREAM_ERROR;
return written;