/* * Copyright (c) 2016-present, 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. */ /* This program uses hard-coded data compressed with Zstd legacy versions and tests that the API decompresses them correctly */ /*=========================================== * Dependencies *==========================================*/ #include /* size_t */ #include /* malloc, free */ #include /* fprintf */ #include /* strlen */ #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_decompressBound */ #include "zstd.h" #include "zstd_errors.h" /*=========================================== * Macros *==========================================*/ #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) /*=========================================== * Precompressed frames *==========================================*/ const char* const COMPRESSED; /* content is at end of file */ size_t const COMPRESSED_SIZE = 917; const char* const EXPECTED; /* content is at end of file */ static int testSimpleAPI(void) { size_t const size = strlen(EXPECTED); char* const output = malloc(size); if (!output) { DISPLAY("ERROR: Not enough memory!\n"); return 1; } { size_t const ret = ZSTD_decompress(output, size, COMPRESSED, COMPRESSED_SIZE); if (ZSTD_isError(ret)) { if (ret == ZSTD_error_prefix_unknown) { DISPLAY("ERROR: Invalid frame magic number, was this compiled " "without legacy support?\n"); } else { DISPLAY("ERROR: %s\n", ZSTD_getErrorName(ret)); } return 1; } if (ret != size) { DISPLAY("ERROR: Wrong decoded size\n"); } } if (memcmp(EXPECTED, output, size) != 0) { DISPLAY("ERROR: Wrong decoded output produced\n"); return 1; } free(output); DISPLAY("Simple API OK\n"); return 0; } static int testStreamingAPI(void) { int error_code = 0; size_t const outBuffSize = ZSTD_DStreamOutSize(); char* const outBuff = malloc(outBuffSize); ZSTD_DStream* const stream = ZSTD_createDStream(); ZSTD_inBuffer input = { COMPRESSED, COMPRESSED_SIZE, 0 }; size_t outputPos = 0; int needsInit = 1; if (outBuff == NULL) { DISPLAY("ERROR: Could not allocate memory\n"); return 1; } if (stream == NULL) { DISPLAY("ERROR: Could not create dstream\n"); free(outBuff); return 1; } while (1) { ZSTD_outBuffer output = {outBuff, outBuffSize, 0}; if (needsInit) { size_t const ret = ZSTD_initDStream(stream); if (ZSTD_isError(ret)) { DISPLAY("ERROR: ZSTD_initDStream: %s\n", ZSTD_getErrorName(ret)); error_code = 1; break; } } { size_t const ret = ZSTD_decompressStream(stream, &output, &input); if (ZSTD_isError(ret)) { DISPLAY("ERROR: ZSTD_decompressStream: %s\n", ZSTD_getErrorName(ret)); error_code = 1; break; } if (ret == 0) { needsInit = 1; } } if (memcmp(outBuff, EXPECTED + outputPos, output.pos) != 0) { DISPLAY("ERROR: Wrong decoded output produced\n"); error_code = 1; break; } outputPos += output.pos; if (input.pos == input.size && output.pos < output.size) { break; } } free(outBuff); ZSTD_freeDStream(stream); if (error_code == 0) DISPLAY("Streaming API OK\n"); return error_code; } static int testFrameDecoding(void) { if (strlen(EXPECTED) > ZSTD_decompressBound(COMPRESSED, COMPRESSED_SIZE)) { DISPLAY("ERROR: ZSTD_decompressBound: decompressed bound too small\n"); return 1; } { const char* ip = COMPRESSED; size_t remainingSize = COMPRESSED_SIZE; while (1) { size_t frameSize = ZSTD_findFrameCompressedSize(ip, remainingSize); if (ZSTD_isError(frameSize)) { DISPLAY("ERROR: ZSTD_findFrameCompressedSize: %s\n", ZSTD_getErrorName(frameSize)); return 1; } if (frameSize > remainingSize) { DISPLAY("ERROR: ZSTD_findFrameCompressedSize: expected frameSize to align with src buffer"); return 1; } ip += frameSize; remainingSize -= frameSize; if (remainingSize == 0) break; } } DISPLAY("Frame Decoding OK\n"); return 0; } int main(void) { { int const ret = testSimpleAPI(); if (ret) return ret; } { int const ret = testStreamingAPI(); if (ret) return ret; } { int const ret = testFrameDecoding(); if (ret) return ret; } DISPLAY("OK\n"); return 0; } /* Consists of the "EXPECTED" string compressed with default settings on - v0.4.3 - v0.5.0 - v0.6.0 - v0.7.0 - v0.8.0 */ const char* const COMPRESSED = "\x24\xB5\x2F\xFD\x00\x00\x00\xBB\xB0\x02\xC0\x10\x00\x1E\xB0\x01" "\x02\x00\x00\x80\x00\xE8\x92\x34\x12\x97\xC8\xDF\xE9\xF3\xEF\x53" "\xEA\x1D\x27\x4F\x0C\x44\x90\x0C\x8D\xF1\xB4\x89\x17\x00\x18\x00" "\x18\x00\x3F\xE6\xE2\xE3\x74\xD6\xEC\xC9\x4A\xE0\x71\x71\x42\x3E" "\x64\x4F\x6A\x45\x4E\x78\xEC\x49\x03\x3F\xC6\x80\xAB\x8F\x75\x5E" "\x6F\x2E\x3E\x7E\xC6\xDC\x45\x69\x6C\xC5\xFD\xC7\x40\xB8\x84\x8A" "\x01\xEB\xA8\xD1\x40\x39\x90\x4C\x64\xF8\xEB\x53\xE6\x18\x0B\x67" "\x12\xAD\xB8\x99\xB3\x5A\x6F\x8A\x19\x03\x01\x50\x67\x56\xF5\x9F" "\x35\x84\x60\xA0\x60\x91\xC9\x0A\xDC\xAB\xAB\xE0\xE2\x81\xFA\xCF" "\xC6\xBA\x01\x0E\x00\x54\x00\x00\x19\x00\x00\x54\x14\x00\x24\x24" "\x04\xFE\x04\x84\x4E\x41\x00\x27\xE2\x02\xC4\xB1\x00\xD2\x51\x00" "\x79\x58\x41\x28\x00\xE0\x0C\x01\x68\x65\x00\x04\x13\x0C\xDA\x0C" "\x80\x22\x06\xC0\x00\x00\x25\xB5\x2F\xFD\x00\x00\x00\xAD\x12\xB0" "\x7D\x1E\xB0\x01\x02\x00\x00\x80\x00\xE8\x92\x34\x12\x97\xC8\xDF" "\xE9\xF3\xEF\x53\xEA\x1D\x27\x4F\x0C\x44\x90\x0C\x8D\xF1\xB4\x89" "\x03\x01\x50\x67\x56\xF5\x9F\x35\x84\x60\xA0\x60\x91\xC9\x0A\xDC" "\xAB\xAB\xE0\xE2\x81\xFA\xCF\xC6\xBA\xEB\xA8\xD1\x40\x39\x90\x4C" "\x64\xF8\xEB\x53\xE6\x18\x0B\x67\x12\xAD\xB8\x99\xB3\x5A\x6F\x8A" "\xF9\x63\x0C\xB8\xFA\x58\xE7\xF5\xE6\xE2\xE3\x67\xCC\x5D\x94\xC6" "\x56\xDC\x7F\x0C\x84\x4B\xA8\xF8\x63\x2E\x3E\x4E\x67\xCD\x9E\xAC" "\x04\x1E\x17\x27\xE4\x43\xF6\xA4\x56\xE4\x84\xC7\x9E\x34\x0E\x00" "\x00\x32\x40\x80\xA8\x00\x01\x49\x81\xE0\x3C\x01\x29\x1D\x00\x87" "\xCE\x80\x75\x08\x80\x72\x24\x00\x7B\x52\x00\x94\x00\x20\xCC\x01" "\x86\xD2\x00\x81\x09\x83\xC1\x34\xA0\x88\x01\xC0\x00\x00\x26\xB5" "\x2F\xFD\x42\xEF\x00\x00\xA6\x12\xB0\x7D\x1E\xB0\x01\x02\x00\x00" "\x54\xA0\xBA\x24\x8D\xC4\x25\xF2\x77\xFA\xFC\xFB\x94\x7A\xC7\xC9" "\x13\x03\x11\x24\x43\x63\x3C\x6D\x22\x03\x01\x50\x67\x56\xF5\x9F" "\x35\x84\x60\xA0\x60\x91\xC9\x0A\xDC\xAB\xAB\xE0\xE2\x81\xFA\xCF" "\xC6\xBA\xEB\xA8\xD1\x40\x39\x90\x4C\x64\xF8\xEB\x53\xE6\x18\x0B" "\x67\x12\xAD\xB8\x99\xB3\x5A\x6F\x8A\xF9\x63\x0C\xB8\xFA\x58\xE7" "\xF5\xE6\xE2\xE3\x67\xCC\x5D\x94\xC6\x56\xDC\x7F\x0C\x84\x4B\xA8" "\xF8\x63\x2E\x3E\x4E\x67\xCD\x9E\xAC\x04\x1E\x17\x27\xE4\x43\xF6" "\xA4\x56\xE4\x84\xC7\x9E\x34\x0E\x00\x35\x0B\x71\xB5\xC0\x2A\x5C" "\x26\x94\x22\x20\x8B\x4C\x8D\x13\x47\x58\x67\x15\x6C\xF1\x1C\x4B" "\x54\x10\x9D\x31\x50\x85\x4B\x54\x0E\x01\x4B\x3D\x01\xC0\x00\x00" "\x27\xB5\x2F\xFD\x20\xEF\x00\x00\xA6\x12\xE4\x84\x1F\xB0\x01\x10" "\x00\x00\x00\x35\x59\xA6\xE7\xA1\xEF\x7C\xFC\xBD\x3F\xFF\x9F\xEF" "\xEE\xEF\x61\xC3\xAA\x31\x1D\x34\x38\x22\x22\x04\x44\x21\x80\x32" "\xAD\x28\xF3\xD6\x28\x0C\x0A\x0E\xD6\x5C\xAC\x19\x8D\x20\x5F\x45" "\x02\x2E\x17\x50\x66\x6D\xAC\x8B\x9C\x6E\x07\x73\x46\xBB\x44\x14" "\xE7\x98\xC3\xB9\x17\x32\x6E\x33\x7C\x0E\x21\xB1\xDB\xCB\x89\x51" "\x23\x34\xAB\x9D\xBC\x6D\x20\xF5\x03\xA9\x91\x4C\x2E\x1F\x59\xDB" "\xD9\x35\x67\x4B\x0C\x95\x79\x10\x00\x85\xA6\x96\x95\x2E\xDF\x78" "\x7B\x4A\x5C\x09\x76\x97\xD1\x5C\x96\x12\x75\x35\xA3\x55\x4A\xD4" "\x0B\x00\x35\x0B\x71\xB5\xC0\x2A\x5C\xE6\x08\x45\xF1\x39\x43\xF1" "\x1C\x4B\x54\x10\x9D\x31\x50\x85\x4B\x54\x0E\x01\x4B\x3D\x01\xC0" "\x00\x00\x28\xB5\x2F\xFD\x24\xEF\x35\x05\x00\x92\x0B\x21\x1F\xB0" "\x01\x10\x00\x00\x00\x35\x59\xA6\xE7\xA1\xEF\x7C\xFC\xBD\x3F\xFF" "\x9F\xEF\xEE\xEF\x61\xC3\xAA\x31\x1D\x34\x38\x22\x22\x04\x44\x21" "\x80\x32\xAD\x28\xF3\xD6\x28\x0C\x0A\x0E\xD6\x5C\xAC\x19\x8D\x20" "\x5F\x45\x02\x2E\x17\x50\x66\x6D\xAC\x8B\x9C\x6E\x07\x73\x46\xBB" "\x44\x14\xE7\x98\xC3\xB9\x17\x32\x6E\x33\x7C\x0E\x21\xB1\xDB\xCB" "\x89\x51\x23\x34\xAB\x9D\xBC\x6D\x20\xF5\x03\xA9\x91\x4C\x2E\x1F" "\x59\xDB\xD9\x35\x67\x4B\x0C\x95\x79\x10\x00\x85\xA6\x96\x95\x2E" "\xDF\x78\x7B\x4A\x5C\x09\x76\x97\xD1\x5C\x96\x12\x75\x35\xA3\x55" "\x4A\xD4\x0B\x00\x35\x0B\x71\xB5\xC0\x2A\x5C\xE6\x08\x45\xF1\x39" "\x43\xF1\x1C\x4B\x54\x10\x9D\x31\x50\x85\x4B\x54\x0E\x01\x4B\x3D" "\x01\xD2\x2F\x21\x80"; const char* const EXPECTED = "snowden is snowed in / he's now then in his snow den / when does the snow end?\n" "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n" "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n" "snowden is snowed in / he's now then in his snow den / when does the snow end?\n" "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n" "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n" "snowden is snowed in / he's now then in his snow den / when does the snow end?\n" "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n" "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n" "snowden is snowed in / he's now then in his snow den / when does the snow end?\n" "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n" "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n" "snowden is snowed in / he's now then in his snow den / when does the snow end?\n" "goodbye little dog / you dug some holes in your day / they'll be hard to fill.\n" "when life shuts a door, / just open it. it’s a door. / that is how doors work.\n";