From 1fc4168b81f565feab409b92ccb61c57a1c550eb Mon Sep 17 00:00:00 2001 From: DLL125 <134442578+DLL125@users.noreply.github.com> Date: Thu, 25 May 2023 12:52:53 +0200 Subject: Update Libzip to latest 1.9.2 (#1071) * Libzip 1.9.2 Updated Libzip to latest version 1.9.2 and changed version number in the config.h from 1.7.3 to 1.9.2. Not sure if anything else needs to be tweaked :) * Modified Libzip to work with Visual studio * Update README.md Update libzip copyright. * Added the missing files. I've added the missing files zipconf.h and config.h, I've missed those sorry for that! --- src/Common/libzip/zip_algorithm_zstd.c | 294 +++++++++++++++++++++++++++++++++ 1 file changed, 294 insertions(+) create mode 100644 src/Common/libzip/zip_algorithm_zstd.c (limited to 'src/Common/libzip/zip_algorithm_zstd.c') diff --git a/src/Common/libzip/zip_algorithm_zstd.c b/src/Common/libzip/zip_algorithm_zstd.c new file mode 100644 index 00000000..7a08fbbc --- /dev/null +++ b/src/Common/libzip/zip_algorithm_zstd.c @@ -0,0 +1,294 @@ +/* + zip_algorithm_zstd.c -- zstd (de)compression routines + Copyright (C) 2020-2021 Dieter Baron and Thomas Klausner + + This file is part of libzip, a library to manipulate ZIP archives. + The authors can be contacted at + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + 3. The names of the authors may not be used to endorse or promote + products derived from this software without specific prior + written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS + OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "zipint.h" + +#include +#include +#include +#include + +struct ctx { + zip_error_t *error; + bool compress; + int compression_flags; + bool end_of_input; + ZSTD_DStream *zdstream; + ZSTD_CStream *zcstream; + ZSTD_outBuffer out; + ZSTD_inBuffer in; +}; + +static zip_uint64_t +maximum_compressed_size(zip_uint64_t uncompressed_size) { + return ZSTD_compressBound(uncompressed_size); +} + + +static void * +allocate(bool compress, int compression_flags, zip_error_t *error) { + struct ctx *ctx; + + /* 0: let zstd choose */ + if (compression_flags < ZSTD_minCLevel() || compression_flags > ZSTD_maxCLevel()) { + compression_flags = 0; + } + + if ((ctx = (struct ctx *)malloc(sizeof(*ctx))) == NULL) { + return NULL; + } + + ctx->error = error; + ctx->compress = compress; + ctx->compression_flags = compression_flags; + ctx->end_of_input = false; + + ctx->zdstream = NULL; + ctx->zcstream = NULL; + ctx->in.src = NULL; + ctx->in.pos = 0; + ctx->in.size = 0; + ctx->out.dst = NULL; + ctx->out.pos = 0; + ctx->out.size = 0; + + return ctx; +} + + +static void * +compress_allocate(zip_uint16_t method, int compression_flags, zip_error_t *error) { + return allocate(true, compression_flags, error); +} + + +static void * +decompress_allocate(zip_uint16_t method, int compression_flags, zip_error_t *error) { + return allocate(false, compression_flags, error); +} + + +static void +deallocate(void *ud) { + struct ctx *ctx = (struct ctx *)ud; + free(ctx); +} + + +static zip_uint16_t +general_purpose_bit_flags(void *ud) { + /* struct ctx *ctx = (struct ctx *)ud; */ + return 0; +} + +static int +map_error(size_t ret) { + switch (ret) { + case ZSTD_error_no_error: + return ZIP_ER_OK; + + case ZSTD_error_corruption_detected: + case ZSTD_error_checksum_wrong: + case ZSTD_error_dictionary_corrupted: + case ZSTD_error_dictionary_wrong: + return ZIP_ER_COMPRESSED_DATA; + + case ZSTD_error_memory_allocation: + return ZIP_ER_MEMORY; + + case ZSTD_error_parameter_unsupported: + case ZSTD_error_parameter_outOfBound: + return ZIP_ER_INVAL; + + default: + return ZIP_ER_INTERNAL; + } +} + + +static bool +start(void *ud, zip_stat_t *st, zip_file_attributes_t *attributes) { + struct ctx *ctx = (struct ctx *)ud; + ctx->in.src = NULL; + ctx->in.pos = 0; + ctx->in.size = 0; + ctx->out.dst = NULL; + ctx->out.pos = 0; + ctx->out.size = 0; + if (ctx->compress) { + size_t ret; + ctx->zcstream = ZSTD_createCStream(); + if (ctx->zcstream == NULL) { + zip_error_set(ctx->error, ZIP_ER_MEMORY, 0); + return false; + } + ret = ZSTD_initCStream(ctx->zcstream, ctx->compression_flags); + if (ZSTD_isError(ret)) { + zip_error_set(ctx->error, ZIP_ER_ZLIB, map_error(ret)); + return false; + } + } + else { + ctx->zdstream = ZSTD_createDStream(); + if (ctx->zdstream == NULL) { + zip_error_set(ctx->error, ZIP_ER_MEMORY, 0); + return false; + } + } + + return true; +} + + +static bool +end(void *ud) { + struct ctx *ctx = (struct ctx *)ud; + size_t ret; + + if (ctx->compress) { + ret = ZSTD_freeCStream(ctx->zcstream); + ctx->zcstream = NULL; + } + else { + ret = ZSTD_freeDStream(ctx->zdstream); + ctx->zdstream = NULL; + } + + if (ZSTD_isError(ret)) { + zip_error_set(ctx->error, map_error(ret), 0); + return false; + } + + return true; +} + + +static bool +input(void *ud, zip_uint8_t *data, zip_uint64_t length) { + struct ctx *ctx = (struct ctx *)ud; + if (length > SIZE_MAX || ctx->in.pos != ctx->in.size) { + zip_error_set(ctx->error, ZIP_ER_INVAL, 0); + return false; + } + ctx->in.src = (const void *)data; + ctx->in.size = (size_t)length; + ctx->in.pos = 0; + return true; +} + + +static void +end_of_input(void *ud) { + struct ctx *ctx = (struct ctx *)ud; + + ctx->end_of_input = true; +} + + +static zip_compression_status_t +process(void *ud, zip_uint8_t *data, zip_uint64_t *length) { + struct ctx *ctx = (struct ctx *)ud; + + size_t ret; + + if (ctx->in.pos == ctx->in.size && !ctx->end_of_input) { + *length = 0; + return ZIP_COMPRESSION_NEED_DATA; + } + + ctx->out.dst = data; + ctx->out.pos = 0; + ctx->out.size = ZIP_MIN(SIZE_MAX, *length); + + if (ctx->compress) { + if (ctx->in.pos == ctx->in.size && ctx->end_of_input) { + ret = ZSTD_endStream(ctx->zcstream, &ctx->out); + if (ret == 0) { + *length = ctx->out.pos; + return ZIP_COMPRESSION_END; + } + } + else { + ret = ZSTD_compressStream(ctx->zcstream, &ctx->out, &ctx->in); + } + } + else { + ret = ZSTD_decompressStream(ctx->zdstream, &ctx->out, &ctx->in); + } + if (ZSTD_isError(ret)) { + zip_error_set(ctx->error, map_error(ret), 0); + return ZIP_COMPRESSION_ERROR; + } + + *length = ctx->out.pos; + if (ctx->in.pos == ctx->in.size) { + return ZIP_COMPRESSION_NEED_DATA; + } + + return ZIP_COMPRESSION_OK; +} + +/* Version Required should be set to 63 (6.3) because this compression + method was only defined in appnote.txt version 6.3.7, but Winzip + does not unpack it if the value is not 20. */ + +/* clang-format off */ + +zip_compression_algorithm_t zip_algorithm_zstd_compress = { + maximum_compressed_size, + compress_allocate, + deallocate, + general_purpose_bit_flags, + 20, + start, + end, + input, + end_of_input, + process +}; + + +zip_compression_algorithm_t zip_algorithm_zstd_decompress = { + maximum_compressed_size, + decompress_allocate, + deallocate, + general_purpose_bit_flags, + 20, + start, + end, + input, + end_of_input, + process +}; + +/* clang-format on */ -- cgit v1.2.3