| /* |
| * Copyright (c) 2016-2020, Yann Collet, Facebook, Inc. |
| * 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; |
| } |