From 7f9bd34d07a1f2c96299b9596d71574b5580f36d Mon Sep 17 00:00:00 2001
From: mjz19910 <matthias291999@gmail.com>
Date: Mon, 3 Jan 2022 22:15:52 -0700
Subject: [PATCH] wc: Port to LibMain

---
 Userland/Utilities/CMakeLists.txt |  1 +
 Userland/Utilities/wc.cpp         | 15 +++++----------
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 3f62f9860d..9203f2d4ed 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -162,6 +162,7 @@ target_link_libraries(cpp-parser LibCpp LibGUI)
 target_link_libraries(cpp-preprocessor LibCpp LibGUI)
 target_link_libraries(w LibMain)
 target_link_libraries(wasm LibWasm LibLine)
+target_link_libraries(wc LibMain)
 target_link_libraries(which LibMain)
 target_link_libraries(whoami LibMain)
 target_link_libraries(watch LibMain)
diff --git a/Userland/Utilities/wc.cpp b/Userland/Utilities/wc.cpp
index dc36e768c5..c0270d21f9 100644
--- a/Userland/Utilities/wc.cpp
+++ b/Userland/Utilities/wc.cpp
@@ -8,6 +8,7 @@
 #include <AK/String.h>
 #include <AK/Vector.h>
 #include <LibCore/ArgsParser.h>
+#include <LibCore/System.h>
 #include <ctype.h>
 #include <stdio.h>
 #include <sys/stat.h>
@@ -85,12 +86,9 @@ static Count get_total_count(const Vector<Count>& counts)
     return total_count;
 }
 
-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<const char*> file_specifiers;
 
@@ -99,7 +97,7 @@ int main(int argc, char** argv)
     args_parser.add_option(g_output_byte, "Output byte count", "bytes", 'c');
     args_parser.add_option(g_output_word, "Output word count", "words", 'w');
     args_parser.add_positional_argument(file_specifiers, "File to process", "file", Core::ArgsParser::Required::No);
-    args_parser.parse(argc, argv);
+    args_parser.parse(arguments);
 
     if (!g_output_line && !g_output_byte && !g_output_word)
         g_output_line = g_output_byte = g_output_word = true;
@@ -108,10 +106,7 @@ int main(int argc, char** argv)
     for (const auto& file_specifier : file_specifiers)
         counts.append(get_count(file_specifier));
 
-    if (pledge("stdio", nullptr) < 0) {
-        perror("pledge");
-        return 1;
-    }
+    TRY(Core::System::pledge("stdio"));
 
     if (file_specifiers.is_empty())
         counts.append(get_count("-"));