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| author | Nathan Moinvaziri <nathan@nathanm.com> | 2020-06-04 10:58:37 -0700 |
|---|---|---|
| committer | Hans Kristian Rosbach <hk-github@circlestorm.org> | 2020-06-08 14:50:46 +0200 |
| commit | 04a98daeb21fe97b8e5cfde557fd95ea7f7f39b3 (patch) | |
| tree | 11e74ff5fddf63d7562a0a9dd2be69978747631e /test/switchlevels.c | |
| parent | 18da0db0d9e86636835faa7ef740c6be0ca70c1d (diff) | |
| download | Project-Tick-04a98daeb21fe97b8e5cfde557fd95ea7f7f39b3.tar.gz Project-Tick-04a98daeb21fe97b8e5cfde557fd95ea7f7f39b3.zip | |
Added help message to switchlevels.
Diffstat (limited to 'test/switchlevels.c')
| -rw-r--r-- | test/switchlevels.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/test/switchlevels.c b/test/switchlevels.c index c23acda57c..ce5bfe5fcc 100644 --- a/test/switchlevels.c +++ b/test/switchlevels.c @@ -107,10 +107,11 @@ done: return ret; } -/* =========================================================================== - * Usage: switchlevels [-w bits] level1 size1 [level2 size2 ...] - * -w : window bits - */ +void show_help(void) +{ + printf("Usage: switchlevels [-w bits] level1 size1 [level2 size2 ...]\n\n" \ + " -w : window bits (8 to 15 for gzip, -8 to -15 for zlib)\n\n"); +} int main(int argc, char **argv) { int ret = EXIT_FAILURE; @@ -121,6 +122,12 @@ int main(int argc, char **argv) { int window_bits = MAX_WBITS + 16; PREFIX3(stream) strm; + + if ((argc == 1) || (argc == 2 && strcmp(argv[1], "--help") == 0)) { + show_help(); + return 0; + } + SET_BINARY_MODE(stdin); SET_BINARY_MODE(stdout); |