Userland: Convert command line arguments to String/StringView

StringView was used where possible. Some utilities still use libc
functions which expect null-terminated strings, so String objects were
used there instead.

Userland/Applets/ResourceGraph/main.cpp

@@ -267,16 +267,16 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     TRY(Core::System::pledge("stdio recvfd sendfd proc exec rpath"));
 
-    char const* cpu = nullptr;
-    char const* memory = nullptr;
-    char const* network = nullptr;
+    StringView cpu {};
+    StringView memory {};
+    StringView network {};
     Core::ArgsParser args_parser;
     args_parser.add_option(cpu, "Create CPU graph", "cpu", 'C', "cpu");
     args_parser.add_option(memory, "Create memory graph", "memory", 'M', "memory");
     args_parser.add_option(network, "Create network graph", "network", 'N', "network");
     args_parser.parse(arguments);
 
-    if (!cpu && !memory && !network) {
+    if (cpu.is_empty() && memory.is_empty() && network.is_empty()) {
         printf("At least one of --cpu, --memory, or --network must be used");
         return 1;
     }
@@ -306,11 +306,11 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         return {};
     };
 
-    if (cpu)
+    if (!cpu.is_empty())
         TRY(create_applet(GraphType::CPU, cpu));
-    if (memory)
+    if (!memory.is_empty())
         TRY(create_applet(GraphType::Memory, memory));
-    if (network)
+    if (!network.is_empty())
         TRY(create_applet(GraphType::Network, network));
 
     TRY(Core::System::unveil("/res", "r"));

Userland/Applications/CrashReporter/main.cpp

@@ -140,7 +140,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     auto app = TRY(GUI::Application::try_create(arguments));
 
-    char const* coredump_path = nullptr;
+    String coredump_path {};
     bool unlink_on_exit = false;
     StringBuilder full_backtrace;
 
@@ -265,7 +265,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto& debug_button = *widget->find_descendant_of_type_named<GUI::Button>("debug_button");
     debug_button.set_icon(TRY(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/app-hack-studio.png")));
     debug_button.on_click = [&](int) {
-        GUI::Process::spawn_or_show_error(window, "/bin/HackStudio", Array { "-c", coredump_path });
+        GUI::Process::spawn_or_show_error(window, "/bin/HackStudio", Array { "-c", coredump_path.characters() });
     };
 
     auto& save_backtrace_button = *widget->find_descendant_of_type_named<GUI::Button>("save_backtrace_button");

Userland/Shell/main.cpp

@@ -157,8 +157,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         };
     };
 
-    char const* command_to_run = nullptr;
-    char const* file_to_read_from = nullptr;
+    StringView command_to_run = {};
+    StringView file_to_read_from = {};
     Vector<String> script_args;
     bool skip_rc_files = false;
     char const* format = nullptr;
@@ -201,10 +201,10 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         }
     }
 
-    auto execute_file = file_to_read_from && "-"sv != file_to_read_from;
+    auto execute_file = !file_to_read_from.is_empty() && "-"sv != file_to_read_from;
     attempt_interactive = !execute_file;
 
-    if (keep_open && !command_to_run && !execute_file) {
+    if (keep_open && command_to_run.is_empty() && !execute_file) {
         warnln("Option --keep-open can only be used in combination with -c or when specifying a file to execute.");
         return 1;
     }
@@ -230,7 +230,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     shell->set_local_variable("ARGV", adopt_ref(*new Shell::AST::ListValue(move(script_args))));
 
-    if (command_to_run) {
+    if (!command_to_run.is_empty()) {
         dbgln("sh -c '{}'\n", command_to_run);
         auto result = shell->run_command(command_to_run);
         if (!keep_open)

Userland/Utilities/abench.cpp

@@ -19,7 +19,7 @@ static constexpr size_t MAX_CHUNK_SIZE = 1 * MiB / 2;
 
 ErrorOr<int> serenity_main(Main::Arguments args)
 {
-    char const* path = nullptr;
+    StringView path {};
     int sample_count = -1;
 
     Core::ArgsParser args_parser;

Userland/Utilities/aplay.cpp

@@ -24,7 +24,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     TRY(Core::System::pledge("stdio rpath sendfd unix thread"));
 
-    char const* path = nullptr;
+    StringView path {};
     bool should_loop = false;
     bool show_sample_progress = false;
 

Userland/Utilities/chgrp.cpp

@@ -16,7 +16,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     TRY(Core::System::pledge("stdio rpath chown"));
 
     char const* gid_arg = nullptr;
-    char const* path = nullptr;
+    StringView path {};
     bool dont_follow_symlinks = false;
 
     Core::ArgsParser args_parser;

Userland/Utilities/disasm.cpp

@@ -19,7 +19,7 @@
 
 ErrorOr<int> serenity_main(Main::Arguments args)
 {
-    char const* path = nullptr;
+    StringView path {};
 
     Core::ArgsParser args_parser;
     args_parser.set_general_help(

Userland/Utilities/env.cpp

@@ -16,7 +16,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     TRY(Core::System::pledge("stdio rpath exec"));
 
     bool ignore_env = false;
-    char const* split_string = nullptr;
+    StringView split_string {};
     Vector<String> values;
 
     Core::ArgsParser args_parser;
@@ -41,8 +41,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     }
 
     Vector<StringView> new_argv;
-    if (split_string) {
-        for (auto view : StringView(split_string).split_view(' ')) {
+    if (!split_string.is_empty()) {
+        for (auto view : split_string.split_view(' ')) {
             new_argv.append(view);
         }
     }

Userland/Utilities/host.cpp

@@ -17,7 +17,7 @@ ErrorOr<int> serenity_main(Main::Arguments args)
 {
     TRY(Core::System::pledge("stdio unix"));
 
-    char const* name_or_ip = nullptr;
+    String name_or_ip {};
     Core::ArgsParser args_parser;
     args_parser.set_general_help("Convert between domain name and IPv4 address.");
     args_parser.add_positional_argument(name_or_ip, "Domain name or IPv4 address", "name");
@@ -37,7 +37,7 @@ ErrorOr<int> serenity_main(Main::Arguments args)
         return 0;
     }
 
-    auto* hostent = gethostbyname(name_or_ip);
+    auto* hostent = gethostbyname(name_or_ip.characters());
     if (!hostent) {
         warnln("Lookup failed for '{}'", name_or_ip);
         return 1;

Userland/Utilities/hostname.cpp

@@ -14,16 +14,16 @@
 
 ErrorOr<int> serenity_main(Main::Arguments args)
 {
-    char const* hostname = nullptr;
+    StringView hostname {};
 
     Core::ArgsParser args_parser;
     args_parser.add_positional_argument(hostname, "Hostname to set", "hostname", Core::ArgsParser::Required::No);
     args_parser.parse(args);
 
-    if (!hostname) {
+    if (hostname.is_empty()) {
         outln("{}", TRY(Core::System::gethostname()));
     } else {
-        if (strlen(hostname) >= HOST_NAME_MAX) {
+        if (hostname.length() >= HOST_NAME_MAX) {
             warnln("Hostname must be less than {} characters", HOST_NAME_MAX);
             return 1;
         }

Userland/Utilities/ifconfig.cpp

@@ -25,9 +25,9 @@
 
 ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
-    char const* value_ipv4 = nullptr;
-    char const* value_adapter = nullptr;
-    char const* value_mask = nullptr;
+    StringView value_ipv4 {};
+    StringView value_adapter {};
+    StringView value_mask {};
 
     Core::ArgsParser args_parser;
     args_parser.set_general_help("Display or modify the configuration of each network interface.");
@@ -36,7 +36,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_option(value_mask, "Set the network mask of the selected network", "mask", 'm', "mask");
     args_parser.parse(arguments);
 
-    if (!value_ipv4 && !value_adapter && !value_mask) {
+    if (value_ipv4.is_empty() && value_adapter.is_empty() && value_mask.is_empty()) {
         auto file = TRY(Core::File::open("/proc/net/adapters", Core::OpenMode::ReadOnly));
         auto json = TRY(JsonValue::from_string(file->read_all()));
 
@@ -66,14 +66,14 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         });
     } else {
 
-        if (!value_adapter) {
+        if (value_adapter.is_empty()) {
             warnln("No network adapter was specified.");
             return 1;
         }
 
         String ifname = value_adapter;
 
-        if (value_ipv4) {
+        if (!value_ipv4.is_empty()) {
             auto address = IPv4Address::from_string(value_ipv4);
 
             if (!address.has_value()) {
@@ -105,7 +105,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
             }
         }
 
-        if (value_mask) {
+        if (!value_mask.is_empty()) {
             auto address = IPv4Address::from_string(value_mask);
 
             if (!address.has_value()) {

Userland/Utilities/less.cpp

@@ -526,8 +526,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     TRY(Core::System::pledge("stdio rpath tty sigaction"));
 
-    char const* filename = "-";
-    char const* prompt = "?f%f :.(line %l)?e (END):.";
+    // FIXME: Make these into StringViews once we stop using fopen below.
+    String filename = "-";
+    String prompt = "?f%f :.(line %l)?e (END):.";
     bool dont_switch_buffer = false;
     bool quit_at_eof = false;
     bool emulate_more = false;
@@ -546,7 +547,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     FILE* file;
     if (String("-") == filename) {
         file = stdin;
-    } else if ((file = fopen(filename, "r")) == nullptr) {
+    } else if ((file = fopen(filename.characters(), "r")) == nullptr) {
         perror("fopen");
         exit(1);
     }

Userland/Utilities/man.cpp

@@ -59,9 +59,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     TRY(Core::System::unveil("/bin", "x"));
     TRY(Core::System::unveil(nullptr, nullptr));
 
-    char const* section = nullptr;
-    char const* name = nullptr;
-    char const* pager = nullptr;
+    StringView section {};
+    StringView name {};
+    StringView pager {};
 
     Core::ArgsParser args_parser;
     args_parser.set_general_help("Read manual pages. Try 'man man' to get started.");
@@ -70,19 +70,19 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_option(pager, "Pager to pipe the man page to", "pager", 'P', "pager");
     args_parser.parse(arguments);
 
-    auto make_path = [name](char const* section) {
+    auto make_path = [name](StringView section) {
         return String::formatted("/usr/share/man/man{}/{}.md", section, name);
     };
-    if (!section) {
-        char const* sections[] = {
-            "1",
-            "2",
-            "3",
-            "4",
-            "5",
-            "6",
-            "7",
-            "8"
+    if (section.is_empty()) {
+        constexpr StringView sections[] = {
+            "1"sv,
+            "2"sv,
+            "3"sv,
+            "4"sv,
+            "5"sv,
+            "6"sv,
+            "7"sv,
+            "8"sv
         };
         for (auto s : sections) {
             String path = make_path(s);
@@ -102,10 +102,10 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     }
 
     String pager_command;
-    if (pager)
+    if (!pager.is_empty())
         pager_command = pager;
     else
-        pager_command = String::formatted("less -P 'Manual Page {}({}) line %l?e (END):.'", StringView(name).replace("'", "'\\''", ReplaceMode::FirstOnly), StringView(section).replace("'", "'\\''", ReplaceMode::FirstOnly));
+        pager_command = String::formatted("less -P 'Manual Page {}({}) line %l?e (END):.'", StringView(name).replace("'"sv, "'\\''"sv, ReplaceMode::FirstOnly), StringView(section).replace("'"sv, "'\\''"sv, ReplaceMode::FirstOnly));
     pid_t pager_pid = TRY(pipe_to_pager(pager_command));
 
     auto file = TRY(Core::File::open(filename, Core::OpenMode::ReadOnly));

Userland/Utilities/notify.cpp

@@ -15,9 +15,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto app = TRY(GUI::Application::try_create(arguments));
 
     Core::ArgsParser args_parser;
-    char const* title = nullptr;
-    char const* message = nullptr;
-    char const* icon_path = nullptr;
+    StringView title {};
+    StringView message {};
+    StringView icon_path {};
     args_parser.add_positional_argument(title, "Title of the notification", "title");
     args_parser.add_positional_argument(message, "Message to display in the notification", "message");
     args_parser.add_positional_argument(icon_path, "Path of icon to display in the notification", "icon-path", Core::ArgsParser::Required::No);
@@ -26,7 +26,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto notification = TRY(GUI::Notification::try_create());
     notification->set_text(message);
     notification->set_title(title);
-    if (icon_path) {
+    if (!icon_path.is_empty()) {
         notification->set_icon(TRY(Gfx::Bitmap::try_load_from_file(icon_path)));
     }
     notification->show();

Userland/Utilities/passwd.cpp

@@ -30,7 +30,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     bool del = false;
     bool lock = false;
     bool unlock = false;
-    char const* username = nullptr;
+    // FIXME: Replace with StringView once Core::Account::from_name stops taking a char const*.
+    String username {};
 
     auto args_parser = Core::ArgsParser();
     args_parser.set_general_help("Modify an account password.");
@@ -44,8 +45,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     uid_t current_uid = getuid();
 
     // target_account is the account we are changing the password of.
-    auto target_account = TRY((username)
-            ? Core::Account::from_name(username)
+    auto target_account = TRY(!username.is_empty()
+            ? Core::Account::from_name(username.characters())
             : Core::Account::from_uid(current_uid));
 
     setpwent();

Userland/Utilities/profile.cpp

@@ -15,8 +15,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     Core::ArgsParser args_parser;
 
-    char const* pid_argument = nullptr;
-    char const* cmd_argument = nullptr;
+    StringView pid_argument {};
+    StringView cmd_argument {};
     bool wait = false;
     bool free = false;
     bool enable = false;
@@ -69,7 +69,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         exit(0);
     }
 
-    if (!pid_argument && !cmd_argument && !all_processes) {
+    if (pid_argument.is_empty() && cmd_argument.is_empty() && !all_processes) {
         args_parser.print_usage(stdout, arguments.argv[0]);
         print_types();
         return 0;
@@ -78,13 +78,14 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     if (!seen_event_type_arg)
         event_mask |= PERF_EVENT_SAMPLE;
 
-    if (pid_argument || all_processes) {
+    if (!pid_argument.is_empty() || all_processes) {
         if (!(enable ^ disable ^ wait ^ free)) {
             warnln("-p <PID> requires -e xor -d xor -w xor -f.");
             return 1;
         }
 
-        pid_t pid = all_processes ? -1 : atoi(pid_argument);
+        // FIXME: Handle error case.
+        pid_t pid = all_processes ? -1 : pid_argument.to_int().release_value();
 
         if (wait || enable) {
             TRY(Core::System::profiling_enable(pid, event_mask));

Userland/Utilities/readelf.cpp

@@ -232,7 +232,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     TRY(Core::System::pledge("stdio rpath"));
 
-    char const* path;
+    StringView path {};
     static bool display_all = false;
     static bool display_elf_header = false;
     static bool display_program_headers = false;

Userland/Utilities/tar.cpp

@@ -33,7 +33,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     bool gzip = false;
     bool no_auto_compress = false;
     StringView archive_file;
-    char const* directory = nullptr;
+    StringView directory;
     Vector<String> paths;
 
     Core::ArgsParser args_parser;
@@ -64,7 +64,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         if (!archive_file.is_empty())
             file = TRY(Core::File::open(archive_file, Core::OpenMode::ReadOnly));
 
-        if (directory)
+        if (!directory.is_empty())
             TRY(Core::System::chdir(directory));
 
         Core::InputFileStream file_stream(file);
@@ -213,7 +213,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         if (!archive_file.is_empty())
             file = TRY(Core::File::open(archive_file, Core::OpenMode::WriteOnly));
 
-        if (directory)
+        if (!directory.is_empty())
             TRY(Core::System::chdir(directory));
 
         Core::OutputFileStream file_stream(file);

Userland/Utilities/tr.cpp

@@ -96,8 +96,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     bool complement_flag = false;
     bool delete_flag = false;
     bool squeeze_flag = false;
-    char const* from_chars = nullptr;
-    char const* to_chars = nullptr;
+    StringView from_chars;
+    StringView to_chars;
 
     Core::ArgsParser args_parser;
     args_parser.add_option(complement_flag, "Take the complement of the first set", "complement", 'c');
@@ -107,7 +107,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_positional_argument(to_chars, "Set of characters to translate to", "to", Core::ArgsParser::Required::No);
     args_parser.parse(arguments);
 
-    bool transform_flag = to_chars && !delete_flag;
+    bool transform_flag = !to_chars.is_empty() && !delete_flag;
 
     if (!transform_flag && !delete_flag && !squeeze_flag) {
         warnln("tr: Missing operand");
@@ -115,13 +115,13 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         return 1;
     }
 
-    if (delete_flag && squeeze_flag && !to_chars) {
+    if (delete_flag && squeeze_flag && to_chars.is_empty()) {
         warnln("tr: Combined delete and squeeze operations need two sets of characters");
         args_parser.print_usage(stderr, arguments.argv[0]);
         return 1;
     }
 
-    if (delete_flag && !squeeze_flag && to_chars) {
+    if (delete_flag && !squeeze_flag && !to_chars.is_empty()) {
         warnln("tr: Only one set of characters may be given when deleting without squeezing");
         args_parser.print_usage(stderr, arguments.argv[0]);
         return 1;
@@ -138,7 +138,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     }
 
     auto to_str = TRY(build_set(to_chars));
-    auto squeeze_string = TRY(build_set(to_chars ? to_chars : from_chars));
+    auto squeeze_string = TRY(build_set(!to_chars.is_empty() ? to_chars : from_chars));
     Optional<char> last_char;
 
     for (;;) {

Userland/Utilities/truncate.cpp

@@ -22,9 +22,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     TRY(Core::System::pledge("stdio rpath wpath cpath"));
 
-    char const* resize = nullptr;
-    char const* reference = nullptr;
-    char const* file = nullptr;
+    StringView resize;
+    StringView reference;
+    StringView file;
 
     Core::ArgsParser args_parser;
     args_parser.add_option(resize, "Resize the target file to (or by) this size. Prefix with + or - to expand or shrink the file, or a bare number to set the size exactly", "size", 's', "size");
@@ -32,12 +32,12 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_positional_argument(file, "File path", "file");
     args_parser.parse(arguments);
 
-    if (!resize && !reference) {
+    if (resize.is_empty() && reference.is_empty()) {
         args_parser.print_usage(stderr, arguments.argv[0]);
         return 1;
     }
 
-    if (resize && reference) {
+    if (!resize.is_empty() && !reference.is_empty()) {
         args_parser.print_usage(stderr, arguments.argv[0]);
         return 1;
     }
@@ -45,7 +45,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto op = OP_Set;
     off_t size = 0;
 
-    if (resize) {
+    if (!resize.is_empty()) {
         String str = resize;
 
         switch (str[0]) {
@@ -67,7 +67,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         size = size_opt.value();
     }
 
-    if (reference) {
+    if (!reference.is_empty()) {
         auto stat = TRY(Core::System::stat(reference));
         size = stat.st_size;
     }

Userland/Utilities/useradd.cpp

@@ -35,10 +35,10 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     int uid = 0;
     int gid = USERS_GID;
     bool create_home_dir = false;
-    char const* password = "";
-    char const* shell = DEFAULT_SHELL;
-    char const* gecos = "";
-    char const* username = nullptr;
+    String password = "";
+    String shell = DEFAULT_SHELL;
+    String gecos = "";
+    String username;
 
     Core::ArgsParser args_parser;
     args_parser.add_option(home_path, "Home directory for the new user", "home-dir", 'd', "path");
@@ -53,7 +53,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.parse(arguments);
 
     // Let's run a quick sanity check on username
-    if (strpbrk(username, "\\/!@#$%^&*()~+=`:\n")) {
+    if (strpbrk(username.characters(), "\\/!@#$%^&*()~+=`:\n")) {
         warnln("invalid character in username, {}", username);
         return 1;
     }
@@ -145,19 +145,19 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         return builder.build();
     };
 
-    char* hash = crypt(password, get_salt().characters());
+    char* hash = crypt(password.characters(), get_salt().characters());
 
     struct passwd p;
-    p.pw_name = const_cast<char*>(username);
+    p.pw_name = const_cast<char*>(username.characters());
     p.pw_passwd = const_cast<char*>("!");
     p.pw_dir = const_cast<char*>(home.characters());
     p.pw_uid = static_cast<uid_t>(uid);
     p.pw_gid = static_cast<gid_t>(gid);
-    p.pw_shell = const_cast<char*>(shell);
-    p.pw_gecos = const_cast<char*>(gecos);
+    p.pw_shell = const_cast<char*>(shell.characters());
+    p.pw_gecos = const_cast<char*>(gecos.characters());
 
     struct spwd s;
-    s.sp_namp = const_cast<char*>(username);
+    s.sp_namp = const_cast<char*>(username.characters());
     s.sp_pwdp = const_cast<char*>(hash);
     s.sp_lstchg = 18727;
     s.sp_min = 0;

Userland/Utilities/utmpupdate.cpp

@@ -24,8 +24,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     pid_t pid = 0;
     bool flag_create = false;
     bool flag_delete = false;
-    char const* tty_name = nullptr;
-    char const* from = nullptr;
+    StringView tty_name;
+    StringView from;
 
     Core::ArgsParser args_parser;
     args_parser.add_option(flag_create, "Create entry", "create", 'c');

Userland/Utilities/wasm.cpp

@@ -269,7 +269,7 @@ static void print_link_error(Wasm::LinkError const& error)
 
 ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
-    char const* filename = nullptr;
+    StringView filename;
     bool print = false;
     bool attempt_instantiate = false;
     bool debug = false;

Userland/Utilities/xargs.cpp

@@ -42,7 +42,7 @@ ErrorOr<int> serenity_main(Main::Arguments main_arguments)
 {
     TRY(Core::System::pledge("stdio rpath proc exec"));
 
-    char const* placeholder = nullptr;
+    StringView placeholder;
     bool split_with_nulls = false;
     char const* specified_delimiter = "\n";
     Vector<String> arguments;
@@ -74,15 +74,13 @@ ErrorOr<int> serenity_main(Main::Arguments main_arguments)
 
     char entry_separator = split_with_nulls ? '\0' : *specified_delimiter;
 
-    StringView placeholder_view { placeholder };
-
-    if (!placeholder_view.is_empty())
+    if (!placeholder.is_empty())
         max_lines = 1;
 
     if (arguments.is_empty())
         arguments.append("echo");
 
-    ParsedInitialArguments initial_arguments(arguments, placeholder_view);
+    ParsedInitialArguments initial_arguments(arguments, placeholder);
 
     FILE* fp = stdin;
     bool is_stdin = true;

Userland/Utilities/zip.cpp

@@ -16,7 +16,7 @@
 
 ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
-    char const* zip_path;
+    StringView zip_path;
     Vector<StringView> source_paths;
     bool recurse = false;
     bool force = false;