apps+base: Remove many legacy test apps

apps/CMakeLists.txt

@@ -28,8 +28,6 @@ luna_app(stat.cpp stat)
 luna_app(uname.cpp uname)
 luna_app(base64.cpp base64)
 luna_app(login.cpp login)
-luna_app(ipc-test.cpp ipc-test)
-luna_app(signal-test.cpp signal-test)
 luna_app(mount.cpp mount)
 luna_app(umount.cpp umount)
 luna_app(ps.cpp ps)
@@ -41,10 +39,5 @@ luna_app(pivot_root.cpp pivot_root)
 luna_app(cp.cpp cp)
 luna_app(kill.cpp kill)
 luna_app(gol.cpp gol)
-luna_app(buffer-test.cpp buffer-test)
-luna_app(socket-test.cpp socket-test)
-luna_app(socket-client.cpp socket-client)
-luna_app(input.cpp input)
-luna_app(shmem-test.cpp shmem-test)
 luna_app(touch.cpp touch)
 luna_app(free.cpp free)

apps/buffer-test.cpp

@@ -1,27 +0,0 @@
-#include <assert.h>
-#include <stdio.h>
-#include <unistd.h>
-
-int main()
-{
-    fprintf(stderr, "Writing incomplete line to stdout (_IOLBF=%d)...\n", stdout->_buf.mode);
-    fputs("hi!", stdout);
-    sleep(3);
-    putchar('\n');
-    fprintf(stderr, "Incomplete line should have been written.\n");
-
-    FILE* f = fopen("/dev/console", "w+");
-    assert(f);
-    assert(setvbuf(f, NULL, _IOFBF, 0) == 0);
-
-    fprintf(stderr, "Writing long text to file (_IOFBF=%d)...\n", f->_buf.mode);
-
-    fputs("Hello world!\nHow are you doing!\nThis is a test for many lines of buffering.\n", f);
-
-    sleep(3);
-    fflush(f);
-
-    fprintf(stderr, "Long text should have been written.\n");
-
-    fclose(f);
-}

apps/input.cpp

@@ -1,69 +0,0 @@
-#include <errno.h>
-#include <luna/String.h>
-#include <moon/Keyboard.h>
-#include <moon/Mouse.h>
-#include <os/File.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/poll.h>
-#include <unistd.h>
-
-Result<void> process_mouse_packet(const moon::MousePacket& packet)
-{
-    bool right = packet.buttons & moon::MouseButton::Right;
-    bool left = packet.buttons & moon::MouseButton::Left;
-    bool middle = packet.buttons & moon::MouseButton::Middle;
-
-    Vector<StringView> buttons;
-    if (right) TRY(buttons.try_append("RIGHT"_sv));
-    if (left) TRY(buttons.try_append("LEFT"_sv));
-    if (middle) TRY(buttons.try_append("MIDDLE"_sv));
-
-    String button_string;
-    if (!buttons.size()) button_string = TRY(String::from_cstring("NONE"));
-    else
-        button_string = TRY(String::join(buttons, " | "_sv));
-
-    os::println("Mouse packet: xdelta=%d, ydelta=%d, buttons=(%s)", packet.xdelta, packet.ydelta,
-                button_string.chars());
-
-    return {};
-}
-
-Result<int> luna_main(int, char**)
-{
-    auto mouse = TRY(os::File::open("/dev/mouse", os::File::ReadOnly));
-    mouse->set_buffer(os::File::NotBuffered);
-
-    auto keyboard = TRY(os::File::open("/dev/kbd", os::File::ReadOnly));
-    keyboard->set_buffer(os::File::NotBuffered);
-
-    ioctl(STDIN_FILENO, TTYSETGFX, 1);
-
-    while (1)
-    {
-        struct pollfd fds[] = {
-            { .fd = mouse->fd(), .events = POLLIN, .revents = 0 },
-            { .fd = keyboard->fd(), .events = POLLIN, .revents = 0 },
-        };
-
-        int rc = poll(fds, 2, 1000);
-        if (!rc) continue;
-        if (rc < 0) { os::println("poll: error: %s", strerror(errno)); }
-
-        if (fds[0].revents & POLLIN)
-        {
-            moon::MousePacket packet;
-            TRY(mouse->read_typed(packet));
-            TRY(process_mouse_packet(packet));
-        }
-        if (fds[1].revents & POLLIN)
-        {
-            moon::KeyboardPacket packet;
-            TRY(keyboard->read_typed(packet));
-            os::println("Keyboard packet: %s key %u", packet.released ? "released" : "pressed", packet.key);
-        }
-    }
-
-    return 0;
-}

apps/ipc-test.cpp

@@ -1,45 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-int main()
-{
-    int pfds[2];
-
-    if (pipe(pfds) < 0)
-    {
-        perror("pipe");
-        return 1;
-    }
-
-    pid_t child = fork();
-    if (child == 0)
-    {
-        close(pfds[1]);
-
-        char buffer[4096];
-        size_t nread = read(pfds[0], buffer, sizeof(buffer) - 1);
-        buffer[nread] = 0;
-        close(pfds[0]);
-
-        puts(buffer);
-
-        return 0;
-    }
-    else if (child == -1)
-    {
-        perror("fork");
-        return 1;
-    }
-
-    close(pfds[0]);
-
-    const char* string = "Hello from a child process who just received this message from its parent!";
-    write(pfds[1], string, strlen(string));
-    close(pfds[1]);
-
-    wait(NULL);
-
-    return 0;
-}

apps/shmem-test.cpp

@@ -1,50 +0,0 @@
-#include <fcntl.h>
-#include <stdio.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-int main()
-{
-    pledge("stdio rpath wpath cpath proc", nullptr);
-
-    int fd = shm_open("/shared", O_CREAT | O_RDWR, 0666);
-    if (fd < 0)
-    {
-        perror("shm_open");
-        return 1;
-    }
-
-    ftruncate(fd, PAGE_SIZE);
-
-    void* address = mmap(nullptr, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
-    if (address == MAP_FAILED)
-    {
-        perror("mmap");
-        return 1;
-    }
-
-    char* ptr = (char*)address;
-
-    printf("the value is %c\n", *ptr);
-
-    *ptr = 'a';
-
-    pid_t child = fork();
-    if (child < 0)
-    {
-        perror("fork");
-        return 1;
-    }
-    if (child == 0)
-    {
-        *ptr = 'e';
-        _exit(0);
-    }
-
-    waitpid(child, NULL, 0);
-
-    printf("the value is %c\n", *ptr);
-
-    return 0;
-}

apps/signal-test.cpp

@@ -1,23 +0,0 @@
-#include <signal.h>
-#include <stdio.h>
-#include <string.h>
-
-void handler(int)
-{
-    puts("I caught a segfault!");
-}
-
-int main()
-{
-    struct sigaction sa;
-    sa.sa_handler = handler;
-    sigemptyset(&sa.sa_mask);
-    sa.sa_flags = SA_RESETHAND;
-    sigaction(SIGSEGV, &sa, NULL);
-
-#pragma GCC diagnostic ignored "-Wnonnull"
-    char* str = nullptr;
-    memset(str, 0, 2);
-
-    return 0;
-}

apps/socket-client.cpp

@@ -1,48 +0,0 @@
-#include <os/ArgumentParser.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <unistd.h>
-
-Result<int> luna_main(int argc, char** argv)
-{
-    StringView message;
-
-    os::ArgumentParser parser;
-    parser.add_description("A UNIX domain socket client, to test said sockets.");
-    parser.add_system_program_info("socket-client"_sv);
-    parser.add_positional_argument(message, "message"_sv, "exit"_sv);
-    parser.parse(argc, argv);
-
-    int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
-    if (sockfd < 0)
-    {
-        perror("socket");
-        return 0;
-    }
-
-    struct sockaddr_un un;
-    un.sun_family = AF_UNIX;
-    strncpy(un.sun_path, "/tmp/local.sock", sizeof(un.sun_path));
-
-    if (connect(sockfd, (struct sockaddr*)&un, sizeof(un)) < 0)
-    {
-        perror("connect");
-        return 1;
-    }
-
-    char buf[4096];
-    ssize_t nread = read(sockfd, buf, sizeof(buf) - 1);
-    if (nread > 0)
-    {
-        buf[nread] = 0;
-        printf("Message from server: %s\n", buf);
-    }
-
-    write(sockfd, message.chars(), message.length());
-
-    close(sockfd);
-
-    return 0;
-}

apps/socket-test.cpp

@@ -1,75 +0,0 @@
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/un.h>
-#include <unistd.h>
-
-int main()
-{
-    setgid(1000);
-    setuid(1000);
-
-    remove("/tmp/local.sock");
-
-    int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
-    if (sockfd < 0)
-    {
-        perror("socket");
-        return 0;
-    }
-
-    struct sockaddr_un un;
-    un.sun_family = AF_UNIX;
-    strncpy(un.sun_path, "/tmp/local.sock", sizeof(un.sun_path));
-
-    if (bind(sockfd, (struct sockaddr*)&un, sizeof(un)) < 0)
-    {
-        perror("bind");
-        return 1;
-    }
-
-    if (listen(sockfd, 10) < 0)
-    {
-        perror("listen");
-        return 1;
-    }
-
-    while (1)
-    {
-        int fd = accept(sockfd, NULL, NULL);
-        if (fd < 0)
-        {
-            perror("accept");
-            return 1;
-        }
-
-        puts("New connection from client, sending hello");
-
-        const char* message = "Hello, client!";
-        write(fd, message, strlen(message));
-
-        puts("Now waiting for client to message back");
-
-        char buf[4096];
-        ssize_t nread = read(fd, buf, sizeof(buf) - 1);
-        if (nread >= 0)
-        {
-            buf[nread] = 0;
-            printf("Message from client: %s\n", buf);
-            if (!strcasecmp(buf, "exit"))
-            {
-                close(fd);
-                close(sockfd);
-                remove("/tmp/local.sock");
-                return 0;
-            }
-        }
-        else { printf("Error reading from client: %s\n", strerror(errno)); }
-
-        puts("Transmission ended, closing connection");
-
-        close(fd);
-    }
-}

base/etc/init/98-listen

@@ -1,6 +0,0 @@
-Name=listen
-Description=Start a Unix domain socket test server.
-Command=/usr/bin/socket-test
-StandardOutput=/dev/uart0
-StandardError=/dev/uart0
-Restart=true