80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
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/*
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checkTag.c - Version validation tool for LZ4
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Copyright (C) Yann Collet 2018 - present
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GPL v2 License
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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You can contact the author at :
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- LZ4 homepage : http://www.lz4.org
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- LZ4 source repo : https://github.com/lz4/lz4
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*/
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/* checkTag command :
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* $ ./checkTag tag
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* checkTag validates tags of following format : v[0-9].[0-9].[0-9]{any}
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* The tag is then compared to LZ4 version number.
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* They are compatible if first 3 digits are identical.
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* Anything beyond that is free, and doesn't impact validation.
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* Example : tag v1.8.1.2 is compatible with version 1.8.1
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* When tag and version are not compatible, program exits with error code 1.
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* When they are compatible, it exists with a code 0.
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* checkTag is intended to be used in automated testing environment.
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*/
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#include <stdio.h> /* printf */
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#include <string.h> /* strlen, strncmp */
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#include "lz4.h" /* LZ4_VERSION_STRING */
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/* validate() :
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* @return 1 if tag is compatible, 0 if not.
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*/
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static int validate(const char* const tag)
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{
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size_t const tagLength = strlen(tag);
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size_t const verLength = strlen(LZ4_VERSION_STRING);
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if (tagLength < 2) return 0;
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if (tag[0] != 'v') return 0;
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if (tagLength <= verLength) return 0;
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if (strncmp(LZ4_VERSION_STRING, tag+1, verLength)) return 0;
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return 1;
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}
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int main(int argc, const char** argv)
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{
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const char* const exeName = argv[0];
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const char* const tag = argv[1];
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if (argc!=2) {
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printf("incorrect usage : %s tag \n", exeName);
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return 2;
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}
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printf("Version : %s \n", LZ4_VERSION_STRING);
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printf("Tag : %s \n", tag);
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if (validate(tag)) {
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printf("OK : tag is compatible with lz4 version \n");
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return 0;
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}
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printf("!! error : tag and versions are not compatible !! \n");
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return 1;
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}
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