69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
|
/*
|
||
|
|
* Copyright (c) Meta Platforms, Inc. and affiliates.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This source code is licensed under both the BSD-style license (found in the
|
||
|
|
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
|
||
|
|
* in the COPYING file in the root directory of this source tree).
|
||
|
|
* You may select, at your option, one of the above-listed licenses.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h> // printf
|
||
|
|
#include <stdlib.h> // free
|
||
|
|
#include <string.h> // strlen, strcat, memset
|
||
|
|
#include <zstd.h> // presumes zstd library is installed
|
||
|
|
#include "common.h" // Helper functions, CHECK(), and CHECK_ZSTD()
|
||
|
|
|
||
|
|
static void compress_orDie(const char* fname, const char* oname)
|
||
|
|
{
|
||
|
|
size_t fSize;
|
||
|
|
void* const fBuff = mallocAndLoadFile_orDie(fname, &fSize);
|
||
|
|
size_t const cBuffSize = ZSTD_compressBound(fSize);
|
||
|
|
void* const cBuff = malloc_orDie(cBuffSize);
|
||
|
|
|
||
|
|
/* Compress.
|
||
|
|
* If you are doing many compressions, you may want to reuse the context.
|
||
|
|
* See the multiple_simple_compression.c example.
|
||
|
|
*/
|
||
|
|
size_t const cSize = ZSTD_compress(cBuff, cBuffSize, fBuff, fSize, 1);
|
||
|
|
CHECK_ZSTD(cSize);
|
||
|
|
|
||
|
|
saveFile_orDie(oname, cBuff, cSize);
|
||
|
|
|
||
|
|
/* success */
|
||
|
|
printf("%25s : %6u -> %7u - %s \n", fname, (unsigned)fSize, (unsigned)cSize, oname);
|
||
|
|
|
||
|
|
free(fBuff);
|
||
|
|
free(cBuff);
|
||
|
|
}
|
||
|
|
|
||
|
|
static char* createOutFilename_orDie(const char* filename)
|
||
|
|
{
|
||
|
|
size_t const inL = strlen(filename);
|
||
|
|
size_t const outL = inL + 5;
|
||
|
|
void* const outSpace = malloc_orDie(outL);
|
||
|
|
memset(outSpace, 0, outL);
|
||
|
|
strcat(outSpace, filename);
|
||
|
|
strcat(outSpace, ".zst");
|
||
|
|
return (char*)outSpace;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, const char** argv)
|
||
|
|
{
|
||
|
|
const char* const exeName = argv[0];
|
||
|
|
|
||
|
|
if (argc!=2) {
|
||
|
|
printf("wrong arguments\n");
|
||
|
|
printf("usage:\n");
|
||
|
|
printf("%s FILE\n", exeName);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
const char* const inFilename = argv[1];
|
||
|
|
|
||
|
|
char* const outFilename = createOutFilename_orDie(inFilename);
|
||
|
|
compress_orDie(inFilename, outFilename);
|
||
|
|
free(outFilename);
|
||
|
|
return 0;
|
||
|
|
}
|