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Userland: Port tac to LibMain

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Federico Guerinoni 2022-01-08 17:40:54 +01:00 committed by Brian Gianforcaro
parent 0e6576b376
commit 05f0f70b00
Notes: sideshowbarker 2024-07-18 05:37:06 +09:00 
Author: https://github.com/guerinoni
Commit: https://github.com/SerenityOS/serenity/commit/05f0f70b00f
Pull-request: https://github.com/SerenityOS/serenity/pull/11736
Reviewed-by: https://github.com/bgianfo ✅
Reviewed-by: https://github.com/creator1creeper1 ✅
2 changed files with 8 additions and 11 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -140,6 +140,7 @@ target_link_libraries(shot LibGUI)
target_link_libraries(sql LibLine LibSQL LibIPC)
target_link_libraries(stat LibMain)
target_link_libraries(strace LibMain)
target_link_libraries(tac LibMain)
target_link_libraries(su LibCrypt LibMain)
target_link_libraries(tar LibArchive LibCompress)
target_link_libraries(telws LibProtocol LibLine)

18
Userland/Utilities/tac.cpp
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@ -1,27 +1,26 @@
/*
* Copyright (c) 2021, Federico Guerinoni <guerinoni.federico@gmail.com>
* Copyright (c) 2021-2022, Federico Guerinoni <guerinoni.federico@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
TRY(Core::System::pledge("stdio rpath"));
Vector<StringView> paths;
Core::ArgsParser args_parser;
args_parser.set_general_help("Concatenate files or pipes to stdout, last line first.");
args_parser.add_positional_argument(paths, "File path(s)", "path", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
args_parser.parse(arguments);
Vector<FILE*> streams;
auto num_paths = paths.size();
@ -54,10 +53,7 @@ int main(int argc, char** argv)
}
};
if (pledge("stdio", nullptr) < 0) {
perror("pledge");
return 1;
}
TRY(Core::System::pledge("stdio"));
for (auto* stream : streams) {
Vector<String> lines;