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/* minizip.c
Version 2.0.1, October 16th, 2017
part of the MiniZip project
Copyright (C) 2012-2017 Nathan Moinvaziri
https://github.com/nmoinvaz/minizip
Copyright (C) 2009-2010 Mathias Svensson
Modifications for Zip64 support
http://result42.com
Copyright (C) 2007-2008 Even Rouault
Modifications of Unzip for Zip64
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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include "mz.h"
#include "mz_os.h"
#include "mz_strm.h"
#include "mz_strm_split.h"
#include "mz_zip.h"
/***************************************************************************/
void minizip_banner()
{
printf("Minizip %s - https://github.com/nmoinvaz/minizip\n", MZ_VERSION);
printf("---------------------------------------------------\n");
}
void minizip_help()
{
printf("Usage : minizip [-o] [-a] [-0 to -9] [-b|-m] [-s] [-j] [-p password] [-k 512] file.zip [files_to_add]\n\n");
printf(" -o Overwrite existing file.zip\n");
printf(" -a Append to existing file.zip\n");
printf(" -0 Store only\n");
printf(" -1 Compress faster\n");
printf(" -9 Compress better\n");
#ifdef HAVE_BZIP2
printf(" -b BZIP2 compression\n");
#endif
#ifdef HAVE_LZMA
printf(" -m LZMA compression\n");
#endif
#ifdef HAVE_AES
printf(" -s AES encryption\n");
#endif
printf(" -p Encryption password\n");
printf(" -k Disk size in KB\n");
printf(" -j Exclude path and store only the file name\n\n");
}
/***************************************************************************/
typedef struct minizip_opt_s {
uint8_t exclude_path;
} minizip_opt;
/***************************************************************************/
int32_t minizip_add_file(void *handle, const char *path, minizip_opt *options, mz_zip_compress *compress_info, mz_zip_crypt *crypt_info)
{
mz_zip_file file_info = { 0 };
int32_t read = 0;
int32_t written = 0;
int16_t err = MZ_OK;
int16_t err_close = MZ_OK;
void *stream = NULL;
const char *filenameinzip = NULL;
char buf[INT16_MAX];
// Construct the filename that our file will be stored in the zip as.
// The path name saved, should not include a leading slash.
// If it did, windows/xp and dynazip couldn't read the zip file.
filenameinzip = path;
while (filenameinzip[0] == '\\' || filenameinzip[0] == '/')
filenameinzip += 1;
// Should the file be stored with any path info at all?
if (options->exclude_path)
{
const char *match = NULL;
const char *last_slash = NULL;
for (match = filenameinzip; *match; match += 1)
{
if (*match == '\\' || *match == '/')
last_slash = match;
}
if (last_slash != NULL)
filenameinzip = last_slash + 1; // base filename follows last slash
}
// Get information about the file on disk so we can store it in zip
printf("Adding: %s\n", filenameinzip);
file_info.filename = filenameinzip;
if (mz_file_get_size(path) >= UINT32_MAX)
file_info.zip64 = 1;
mz_os_get_file_date(path, &file_info.dos_date);
// Add to zip
err = mz_zip_entry_open(handle, &file_info, compress_info, crypt_info);
if (err != MZ_OK)
{
printf("Error in opening %s in zip file (%d)\n", filenameinzip, err);
return err;
}
mz_stream_os_create(&stream);
err = mz_stream_os_open(stream, path, MZ_STREAM_MODE_READ);
if (err == MZ_OK)
{
// Read contents of file and write it to zip
do
{
read = mz_stream_os_read(stream, buf, sizeof(buf));
if (read < 0)
{
err = mz_stream_os_error(stream);
printf("Error %d in reading %s\n", err, filenameinzip);
break;
}
if (read == 0)
break;
written = mz_zip_entry_write(handle, buf, read);
if (written != read)
{
err = mz_stream_os_error(stream);
printf("Error in writing %s in the zip file (%d)\n", filenameinzip, err);
break;
}
}
while (err == MZ_OK);
mz_stream_os_close(stream);
}
else
{
printf("Error in opening %s for reading\n", path);
}
mz_stream_os_delete(&stream);
err_close = mz_zip_entry_close(handle);
if (err_close != MZ_OK)
printf("Error in closing %s in the zip file (%d)\n", filenameinzip, err_close);
return err;
}
int32_t minizip_add(void *handle, const char *path, minizip_opt *options, mz_zip_compress *compress_info, mz_zip_crypt *crypt_info, uint8_t recursive)
{
DIR *dir = NULL;
struct dirent *entry = NULL;
int16_t err = 0;
char full_path[320];
if (mz_os_is_dir(path) != MZ_OK)
return minizip_add_file(handle, path, options, compress_info, crypt_info);
dir = mz_os_open_dir(path);
if (dir == NULL)
{
printf("Cannot enumerate directory %s\n", path);
return MZ_EXIST_ERROR;
}
while ((entry = mz_os_read_dir(dir)) != NULL)
{
if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
continue;
full_path[0] = 0;
mz_path_combine(full_path, path, sizeof(full_path));
mz_path_combine(full_path, entry->d_name, sizeof(full_path));
if (!recursive && mz_os_is_dir(full_path))
continue;
err = minizip_add(handle, full_path, options, compress_info, crypt_info, recursive);
if (err != MZ_OK)
return err;
}
mz_os_close_dir(dir);
return MZ_OK;
}
#ifndef NOMAIN
int main(int argc, char *argv[])
{
void *handle = NULL;
void *file_stream = NULL;
void *split_stream = NULL;
void *open_stream = NULL;
char *path = NULL;
minizip_opt options;
mz_zip_compress compress_info;
mz_zip_crypt crypt_info;
int64_t disk_size = 0;
int32_t path_arg = 0;
uint8_t opt_append = 0;
uint8_t opt_open_existing = 0;
uint8_t opt_exclude_path = 0;
int16_t mode = 0;
int16_t err_close = 0;
int16_t err = 0;
int16_t i = 0;
minizip_banner();
if (argc == 1)
{
minizip_help();
return 0;
}
memset(&options, 0, sizeof(options));
memset(&compress_info, 0, sizeof(compress_info));
memset(&crypt_info, 0, sizeof(crypt_info));
compress_info.method = MZ_COMPRESS_METHOD_DEFLATE;
compress_info.level = MZ_COMPRESS_LEVEL_DEFAULT;
// Parse command line options
for (i = 1; i < argc; i++)
{
if ((*argv[i]) == '-')
{
const char *p = argv[i]+1;
while ((*p) != '\0')
{
char c = *(p++);
if ((c == 'o') || (c == 'O'))
opt_append = 1;
if ((c == 'a') || (c == 'A'))
opt_open_existing = 1;
if ((c >= '0') && (c <= '9'))
{
compress_info.level = (c - '0');
if (compress_info.level == 0)
compress_info.method = MZ_COMPRESS_METHOD_RAW;
}
if ((c == 'j') || (c == 'J'))
options.exclude_path = 1;
#ifdef HAVE_BZIP2
if ((c == 'b') || (c == 'B'))
compress_info.method = MZ_COMPRESS_METHOD_BZIP2;
#endif
#ifdef HAVE_LZMA
if ((c == 'm') || (c == 'M'))
compress_info.method = MZ_COMPRESS_METHOD_LZMA;
#endif
#ifdef HAVE_AES
if ((c == 's') || (c == 'S'))
crypt_info.aes = 1;
#endif
if (((c == 'k') || (c == 'k')) && (i + 1 < argc))
{
disk_size = atoi(argv[i + 1]) * 1024;
i += 1;
}
if (((c == 'p') || (c == 'P')) && (i + 1 < argc))
{
crypt_info.password = argv[i + 1];
i += 1;
}
}
continue;
}
if (path_arg == 0)
path_arg = i;
}
if (path_arg == 0)
{
minizip_help();
return 0;
}
path = argv[path_arg];
if (opt_open_existing)
{
// If the file doesn't exist, we don't append file
if (mz_file_exists(path) != MZ_OK)
opt_append = 0;
}
else if (opt_append == 0)
{
// If ask the user what to do because append and overwrite args not set
if (mz_file_exists(path) != MZ_OK)
{
char rep = 0;
do
{
char answer[128];
printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ", path);
if (scanf("%1s", answer) != 1)
exit(EXIT_FAILURE);
rep = answer[0];
if ((rep >= 'a') && (rep <= 'z'))
rep -= 0x20;
}
while ((rep != 'Y') && (rep != 'N') && (rep != 'A'));
if (rep == 'A')
{
opt_open_existing = 1;
}
else if (rep == 'N')
{
minizip_help();
return 0;
}
}
}
mz_stream_os_create(&file_stream);
mode = MZ_STREAM_MODE_READWRITE;
if (opt_append)
mode |= MZ_STREAM_MODE_APPEND;
else
mode |= MZ_STREAM_MODE_CREATE;
if (disk_size > 0)
{
mz_stream_split_create(&split_stream);
mz_stream_set_base(split_stream, file_stream);
mz_stream_split_set_prop_int64(split_stream, MZ_STREAM_PROP_DISK_SIZE, disk_size);
open_stream = split_stream;
}
else
{
open_stream = file_stream;
}
err = mz_stream_open(open_stream, path, mode);
if (err != MZ_OK)
{
printf("Error opening file %s\n", path);
}
else
{
handle = mz_zip_open(opt_open_existing, open_stream);
if (handle == NULL)
{
printf("Error opening zip %s\n", path);
err = MZ_FORMAT_ERROR;
}
else
{
printf("Creating %s\n", path);
// Go through command line args looking for files to add to zip
for (i = path_arg + 1; (i < argc) && (err == MZ_OK); i += 1)
err = minizip_add(handle, argv[i], &options, &compress_info, &crypt_info, 1);
err_close = mz_zip_close(handle, NULL, MZ_VERSION_MADEBY);
if (err_close != MZ_OK)
printf("Error in closing %s (%d)\n", path, err_close);
}
mz_stream_os_close(file_stream);
}
if (split_stream != NULL)
mz_stream_split_delete(&split_stream);
mz_stream_os_delete(&file_stream);
return err;
}
#endif