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Diffstat (limited to 'tests/checkTag.c')
-rw-r--r-- | tests/checkTag.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/tests/checkTag.c b/tests/checkTag.c new file mode 100644 index 0000000..4a33415 --- /dev/null +++ b/tests/checkTag.c @@ -0,0 +1,79 @@ +/* + checkTag.c - Version validation tool for LZ4 + Copyright (C) Yann Collet 2018 - present + + GPL v2 License + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + + You can contact the author at : + - LZ4 homepage : http://www.lz4.org + - LZ4 source repo : https://github.com/lz4/lz4 +*/ + +/* checkTag command : + * $ ./checkTag tag + * checkTag validates tags of following format : v[0-9].[0-9].[0-9]{any} + * The tag is then compared to LZ4 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 "lz4.h" /* LZ4_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(LZ4_VERSION_STRING); + + if (tagLength < 2) return 0; + if (tag[0] != 'v') return 0; + if (tagLength <= verLength) return 0; + + if (strncmp(LZ4_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", LZ4_VERSION_STRING); + printf("Tag : %s \n", tag); + + if (validate(tag)) { + printf("OK : tag is compatible with lz4 version \n"); + return 0; + } + + printf("!! error : tag and versions are not compatible !! \n"); + return 1; +} |