| /* |
| * Copyright (c) 2018-2020, 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. |
| */ |
| |
| /* checkTag : validation tool for libzstd |
| * command : |
| * $ ./checkTag tag |
| * checkTag validates tags of following format : v[0-9].[0-9].[0-9]{any} |
| * The tag is then compared to zstd version number. |
| * They are compatible if first 3 digits are identical. |
| * Anything beyond that is free, and doesn't impact validation. |
| * Example : tag v1.8.1.2 is compatible with version 1.8.1 |
| * When tag and version are not compatible, program exits with error code 1. |
| * When they are compatible, it exists with a code 0. |
| * checkTag is intended to be used in automated testing environment. |
| */ |
| |
| #include <stdio.h> /* printf */ |
| #include <string.h> /* strlen, strncmp */ |
| #include "zstd.h" /* ZSTD_VERSION_STRING */ |
| |
| |
| /* validate() : |
| * @return 1 if tag is compatible, 0 if not. |
| */ |
| static int validate(const char* const tag) |
| { |
| size_t const tagLength = strlen(tag); |
| size_t const verLength = strlen(ZSTD_VERSION_STRING); |
| |
| if (tagLength < 2) return 0; |
| if (tag[0] != 'v') return 0; |
| if (tagLength <= verLength) return 0; |
| |
| if (strncmp(ZSTD_VERSION_STRING, tag+1, verLength)) return 0; |
| |
| return 1; |
| } |
| |
| int main(int argc, const char** argv) |
| { |
| const char* const exeName = argv[0]; |
| const char* const tag = argv[1]; |
| if (argc!=2) { |
| printf("incorrect usage : %s tag \n", exeName); |
| return 2; |
| } |
| |
| printf("Version : %s \n", ZSTD_VERSION_STRING); |
| printf("Tag : %s \n", tag); |
| |
| if (validate(tag)) { |
| printf("OK : tag is compatible with zstd version \n"); |
| return 0; |
| } |
| |
| printf("!! error : tag and versions are not compatible !! \n"); |
| return 1; |
| } |