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serenity/Userland/Libraries/LibMain/Main.cpp
Andreas Kling 4e530135d5 AK+LibSystem+LibMain: Add Error::from_syscall() for syscall failures
This creates an error that contains the name of the syscall that failed.
This allows error handlers to print out the name of the call if they
want to. :^)
2021-11-22 19:28:31 +01:00

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C++

/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Format.h>
#include <AK/StringView.h>
#include <AK/Vector.h>
#include <LibMain/Main.h>
#include <string.h>
int main(int argc, char** argv)
{
Vector<StringView> arguments;
arguments.ensure_capacity(argc);
for (int i = 0; i < argc; ++i)
arguments.unchecked_append(argv[i]);
auto result = serenity_main({
.argc = argc,
.argv = argv,
.arguments = arguments.span(),
});
if (result.is_error()) {
auto error = result.release_error();
if (error.is_syscall())
warnln("Runtime error: {}: {} (errno={})", error.string_literal(), strerror(error.code()), error.code());
else if (error.is_errno())
warnln("Runtime error: {} (errno={})", strerror(error.code()), error.code());
else
warnln("Runtime error: {}", error.string_literal());
return 1;
}
return result.value();
}