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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
* Copyright (C) 2011-2012 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "../boolean.h"
#ifdef HAVE_LIBRETRO_MANAGEMENT
#include "rarch_console_libretro_mgmt.h"
#endif
#include "rarch_console_rzlib.h"
static int rarch_extract_currentfile_in_zip(unzFile uf, const char *current_dir, char *slash, char *write_filename, size_t write_filename_size, unsigned extract_zip_mode)
{
char filename_inzip[PATH_MAX];
FILE *file_out = NULL;
unz_file_info file_info;
int ret = unzGetCurrentFileInfo(uf,
&file_info, filename_inzip, sizeof(filename_inzip),
NULL, 0, NULL, 0);
if (ret != UNZ_OK)
{
RARCH_ERR("Error %d while trying to get ZIP file information.\n", ret);
return ret;
}
size_t size_buf = WRITEBUFFERSIZE;
void *buf = malloc(size_buf);
if (!buf)
{
RARCH_ERR("Error allocating memory for ZIP extract operation.\n");
return UNZ_INTERNALERROR;
}
switch(extract_zip_mode)
{
case ZIP_EXTRACT_TO_CURRENT_DIR:
case ZIP_EXTRACT_TO_CURRENT_DIR_AND_LOAD_FIRST_FILE:
snprintf(write_filename, write_filename_size, "%s%s%s", current_dir, slash, filename_inzip);
break;
#ifdef HAVE_HDD_CACHE_PARTITION
case ZIP_EXTRACT_TO_CACHE_DIR:
snprintf(write_filename, write_filename_size, "%s%s", default_paths.cache_dir, filename_inzip);
break;
#endif
}
ret = unzOpenCurrentFile(uf);
if (ret != UNZ_OK)
RARCH_ERR("Error %d while trying to open ZIP file.\n", ret);
else
{
/* success */
file_out = fopen(write_filename, "wb");
if (!file_out)
RARCH_ERR("Error opening %s.\n", write_filename);
}
if (file_out)
{
RARCH_LOG("Extracting: %s..\n", write_filename);
do
{
ret = unzReadCurrentFile(uf, buf, size_buf);
if (ret < 0)
{
RARCH_ERR("Error %d while reading from ZIP file.\n", ret);
break;
}
if (ret > 0)
{
if (fwrite(buf, ret, 1, file_out) != 1)
{
RARCH_ERR("Error while extracting file(s) from ZIP.\n");
ret = UNZ_ERRNO;
break;
}
}
}while (ret > 0);
if (file_out)
fclose(file_out);
}
if (ret == UNZ_OK)
{
ret = unzCloseCurrentFile (uf);
if (ret != UNZ_OK)
RARCH_ERR("Error %d while trying to close ZIP file.\n", ret);
}
else
unzCloseCurrentFile(uf);
free(buf);
return ret;
}
int rarch_extract_zipfile(const char *zip_path, const char *current_dir, char *first_file, size_t first_file_size, unsigned extract_zip_mode)
{
bool found_first_file = false;
(void)found_first_file;
unzFile uf = unzOpen(zip_path);
unz_global_info gi;
int ret = unzGetGlobalInfo(uf, &gi);
if(ret != UNZ_OK)
RARCH_ERR("Error %d while trying to get ZIP file global info.\n", ret);
for (unsigned i = 0; i < gi.number_entry; i++)
{
static char write_filename[PATH_MAX];
char slash[6];
#ifdef _XBOX
snprintf(slash, sizeof(slash), "\\");
#else
snprintf(slash, sizeof(slash), "/");
#endif
if (rarch_extract_currentfile_in_zip(uf, current_dir, slash, write_filename, sizeof(write_filename), extract_zip_mode) != UNZ_OK)
{
RARCH_ERR("Failed to extract current file from ZIP archive.\n");
break;
}
else
{
#ifdef HAVE_LIBRETRO_MANAGEMENT
if(!found_first_file)
{
found_first_file = rarch_manage_libretro_extension_supported(write_filename);
if(found_first_file)
snprintf(first_file, first_file_size, write_filename);
}
#endif
}
if ((i + 1) < gi.number_entry)
{
ret = unzGoToNextFile(uf);
if (ret != UNZ_OK)
{
RARCH_ERR("Error %d while trying to go to the next file in the ZIP archive.\n", ret);
break;
}
}
}
return 0;
}
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