648db22b |
1 | /* |
2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
3 | * All rights reserved. |
4 | * |
5 | * This source code is licensed under both the BSD-style license (found in the |
6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found |
7 | * in the COPYING file in the root directory of this source tree). |
8 | * You may select, at your option, one of the above-listed licenses. |
9 | */ |
10 | |
11 | /* checkTag : validation tool for libzstd |
12 | * command : |
13 | * $ ./checkTag tag |
14 | * checkTag validates tags of following format : v[0-9].[0-9].[0-9]{any} |
15 | * The tag is then compared to zstd version number. |
16 | * They are compatible if first 3 digits are identical. |
17 | * Anything beyond that is free, and doesn't impact validation. |
18 | * Example : tag v1.8.1.2 is compatible with version 1.8.1 |
19 | * When tag and version are not compatible, program exits with error code 1. |
20 | * When they are compatible, it exists with a code 0. |
21 | * checkTag is intended to be used in automated testing environment. |
22 | */ |
23 | |
24 | #include <stdio.h> /* printf */ |
25 | #include <string.h> /* strlen, strncmp */ |
26 | #include "zstd.h" /* ZSTD_VERSION_STRING */ |
27 | |
28 | |
29 | /* validate() : |
30 | * @return 1 if tag is compatible, 0 if not. |
31 | */ |
32 | static int validate(const char* const tag) |
33 | { |
34 | size_t const tagLength = strlen(tag); |
35 | size_t const verLength = strlen(ZSTD_VERSION_STRING); |
36 | |
37 | if (tagLength < 2) return 0; |
38 | if (tag[0] != 'v') return 0; |
39 | if (tagLength <= verLength) return 0; |
40 | |
41 | if (strncmp(ZSTD_VERSION_STRING, tag+1, verLength)) return 0; |
42 | |
43 | return 1; |
44 | } |
45 | |
46 | int main(int argc, const char** argv) |
47 | { |
48 | const char* const exeName = argv[0]; |
49 | const char* const tag = argv[1]; |
50 | if (argc!=2) { |
51 | printf("incorrect usage : %s tag \n", exeName); |
52 | return 2; |
53 | } |
54 | |
55 | printf("Version : %s \n", ZSTD_VERSION_STRING); |
56 | printf("Tag : %s \n", tag); |
57 | |
58 | if (validate(tag)) { |
59 | printf("OK : tag is compatible with zstd version \n"); |
60 | return 0; |
61 | } |
62 | |
63 | printf("!! error : tag and versions are not compatible !! \n"); |
64 | return 1; |
65 | } |