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| author | Yuri Wiitala <miu@chromium.org> | 2020-10-26 12:30:13 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-10-26 20:44:44 +0000 |
| commit | 2837c9f0c416803cbab994f1fe10296d2a132971 (patch) | |
| tree | dae3d9a0167f1bc6a56ee65be4f329ce086b73ed /cast/standalone_receiver/main.cc | |
| parent | 83e50af3e0bd628e7307e67e0ae1c6a611b8d7bb (diff) | |
| download | openscreen-2837c9f0c416803cbab994f1fe10296d2a132971.tar.gz | |
Add StringPrintf() wrapper utility.
Adds an efficient wrapper around std::snprintf() that returns the
formatted result in a std::string.
Background: The issue of either 1) wanting to use absl::StrFormat()
without bloating our binary sizes, or 2) manually writing char[] buffer
code around std::snprintf() has come up several times over the past year
or so. So, this new utility is about reducing friction and improving
future developer velocity.
Change-Id: Ie898f91575852b06d59844dd564a0da03df1f7ed
Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/2487768
Commit-Queue: Yuri Wiitala <miu@chromium.org>
Reviewed-by: Yuri Wiitala <miu@chromium.org>
Reviewed-by: Brandon Tolsch <btolsch@chromium.org>
Diffstat (limited to 'cast/standalone_receiver/main.cc')
| -rw-r--r-- | cast/standalone_receiver/main.cc | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/cast/standalone_receiver/main.cc b/cast/standalone_receiver/main.cc index 0c9d3c1b..4e8c321c 100644 --- a/cast/standalone_receiver/main.cc +++ b/cast/standalone_receiver/main.cc @@ -116,16 +116,15 @@ std::unique_ptr<CastAgent> StartCastAgent(TaskRunnerImpl* task_runner, } void LogUsage(const char* argv0) { - std::cerr << R"( -usage: )" << argv0 - << R"( <options> <interface> + constexpr char kTemplate[] = R"( +usage: %s <options> <interface> -options: interface Specifies the network interface to bind to. The interface is looked up from the system interface registry. Mandatory, as it must be known for publishing discovery. +options: -p, --private-key=path-to-key: Path to OpenSSL-generated private key to be used for TLS authentication. If a private key is not provided, a randomly generated one will be used for this @@ -153,7 +152,9 @@ options: -v, --verbose: Enable verbose logging. -h, --help: Show this help message. - )"; +)"; + + std::cerr << StringPrintf(kTemplate, argv0); } InterfaceInfo GetInterfaceInfoFromName(const char* name) { |