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Copy pathminigzip.c
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180 lines (146 loc) · 5.53 KB
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/* minigzip.c
part of the minizip-ng project
Copyright (C) Nathan Moinvaziri
https://github.com/zlib-ng/minizip-ng
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_strm_zlib.h"
#include <stdio.h> /* printf */
/***************************************************************************/
#define MZ_GZIP_COMPRESS (1)
#define MZ_GZIP_DECOMPRESS (2)
int32_t minigzip_banner(void);
int32_t minigzip_help(void);
/***************************************************************************/
int32_t minigzip_banner(void) {
printf("Minigzip %s - https://github.com/zlib-ng/minizip-ng\n", MZ_VERSION);
printf("---------------------------------------------------\n");
return MZ_OK;
}
int32_t minigzip_help(void) {
printf(
"Usage: minigzip [-x] [-d] [-0 to -9] [files]\n\n"
" -x Extract file\n"
" -d Destination directory\n"
" -0 Store only\n"
" -1 Compress faster\n"
" -9 Compress better\n\n");
return MZ_OK;
}
/***************************************************************************/
int32_t minigzip_copy(const char *path, const char *destination, int16_t operation, int16_t level) {
void *target_stream = NULL;
void *source_stream = NULL;
void *zlib_stream = NULL;
const char *filename = NULL;
char target_path[1024];
int32_t err = 0;
memset(target_path, 0, sizeof(target_path));
if (destination) {
if (mz_os_file_exists(destination) != MZ_OK)
mz_dir_make(destination);
}
if (operation == MZ_GZIP_COMPRESS) {
mz_path_combine(target_path, path, sizeof(target_path));
strncat(target_path, ".gz", sizeof(target_path) - strlen(target_path) - 1);
printf("Compressing to %s\n", target_path);
} else if (operation == MZ_GZIP_DECOMPRESS) {
if (destination)
mz_path_combine(target_path, destination, sizeof(target_path));
if (mz_path_get_filename(path, &filename) != MZ_OK)
filename = path;
mz_path_combine(target_path, filename, sizeof(target_path));
mz_path_remove_extension(target_path);
printf("Decompressing to %s\n", target_path);
}
zlib_stream = mz_stream_zlib_create();
mz_stream_zlib_set_prop_int64(zlib_stream, MZ_STREAM_PROP_COMPRESS_WINDOW, 15 + 16);
source_stream = mz_stream_os_create();
err = mz_stream_os_open(source_stream, path, MZ_OPEN_MODE_READ);
if (err == MZ_OK) {
target_stream = mz_stream_os_create();
err = mz_stream_os_open(target_stream, target_path, MZ_OPEN_MODE_CREATE | MZ_OPEN_MODE_WRITE);
if (err == MZ_OK) {
if (operation == MZ_GZIP_COMPRESS) {
mz_stream_zlib_set_prop_int64(zlib_stream, MZ_STREAM_PROP_COMPRESS_LEVEL, level);
mz_stream_zlib_open(zlib_stream, target_path, MZ_OPEN_MODE_WRITE);
mz_stream_set_base(zlib_stream, target_stream);
err = mz_stream_copy_to_end(zlib_stream, source_stream);
} else if (operation == MZ_GZIP_DECOMPRESS) {
mz_stream_zlib_open(zlib_stream, path, MZ_OPEN_MODE_READ);
mz_stream_set_base(zlib_stream, source_stream);
err = mz_stream_copy_to_end(target_stream, zlib_stream);
}
if (err != MZ_OK)
printf("Error %d in zlib stream (%d)\n", err, mz_stream_zlib_error(zlib_stream));
else
printf("Operation completed successfully\n");
mz_stream_zlib_close(zlib_stream);
} else {
printf("Error %d opening target path %s\n", err, target_path);
}
mz_stream_os_close(target_stream);
mz_stream_os_delete(&target_stream);
} else {
printf("Error %d opening source path %s\n", err, path);
}
mz_stream_os_close(source_stream);
mz_stream_os_delete(&source_stream);
mz_stream_zlib_delete(&zlib_stream);
return err;
}
/***************************************************************************/
#if !defined(MZ_ZIP_NO_MAIN)
int main(int argc, const char *argv[]) {
int16_t operation_level = MZ_COMPRESS_LEVEL_DEFAULT;
int32_t path_arg = 0;
int32_t err = 0;
int32_t i = 0;
uint8_t operation = MZ_GZIP_COMPRESS;
const char *path = NULL;
const char *destination = NULL;
minigzip_banner();
if (argc == 1) {
minigzip_help();
return 0;
}
/* Parse command line options */
for (i = 1; i < argc; i += 1) {
printf("%s ", argv[i]);
if (argv[i][0] == '-') {
char c = argv[i][1];
if ((c == 'x') || (c == 'X'))
operation = MZ_GZIP_DECOMPRESS;
else if ((c >= '0') && (c <= '9'))
operation_level = (c - '0');
else if (((c == 'd') || (c == 'D')) && (i + 1 < argc)) {
destination = argv[i + 1];
printf("%s ", argv[i + 1]);
i += 1;
} else {
err = MZ_SUPPORT_ERROR;
}
} else if (path_arg == 0) {
path_arg = i;
break;
}
}
printf("\n");
if (err == MZ_SUPPORT_ERROR) {
printf("Feature not supported\n");
return err;
}
if (path_arg == 0) {
minigzip_help();
return 0;
}
path = argv[path_arg];
err = minigzip_copy(path, destination, operation, operation_level);
return err;
}
#endif