Userland: Move command-line utilities to Userland/Utilities/

1 files changed, 104 insertions, 0 deletions

diff --git a/Userland/Utilities/lspci.cpp b/Userland/Utilities/lspci.cpp
new file mode 100644
index 0000000000..4f42e26018
--- /dev/null
+++ b/Userland/Utilities/lspci.cpp
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/ByteBuffer.h>
+#include <AK/JsonArray.h>
+#include <AK/JsonObject.h>
+#include <AK/String.h>
+#include <LibCore/File.h>
+#include <LibPCIDB/Database.h>
+#include <stdio.h>
+
+int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
+{
+    if (pledge("stdio rpath", nullptr) < 0) {
+        perror("pledge");
+        return 1;
+    }
+
+    if (unveil("/res/pci.ids", "r") < 0) {
+        perror("unveil");
+        return 1;
+    }
+
+    if (unveil("/proc/pci", "r") < 0) {
+        perror("unveil");
+        return 1;
+    }
+
+    unveil(nullptr, nullptr);
+
+    auto db = PCIDB::Database::open();
+    if (!db)
+        warnln("Couldn't open PCI ID database");
+
+    auto proc_pci = Core::File::construct("/proc/pci");
+    if (!proc_pci->open(Core::IODevice::ReadOnly)) {
+        fprintf(stderr, "Error: %s\n", proc_pci->error_string());
+        return 1;
+    }
+
+    if (pledge("stdio", nullptr) < 0) {
+        perror("pledge");
+        return 1;
+    }
+
+    auto file_contents = proc_pci->read_all();
+    auto json = JsonValue::from_string(file_contents);
+    ASSERT(json.has_value());
+    json.value().as_array().for_each([db](auto& value) {
+        auto dev = value.as_object();
+        auto seg = dev.get("seg").to_u32();
+        auto bus = dev.get("bus").to_u32();
+        auto slot = dev.get("slot").to_u32();
+        auto function = dev.get("function").to_u32();
+        auto vendor_id = dev.get("vendor_id").to_u32();
+        auto device_id = dev.get("device_id").to_u32();
+        auto revision_id = dev.get("revision_id").to_u32();
+        auto class_id = dev.get("class").to_u32();
+
+        String vendor_name;
+        String device_name;
+        String class_name;
+
+        if (db) {
+            vendor_name = db->get_vendor(vendor_id);
+            device_name = db->get_device(vendor_id, device_id);
+            class_name = db->get_class(class_id);
+        }
+
+        if (vendor_name.is_empty())
+            vendor_name = String::format("%02x", vendor_id);
+        if (device_name.is_empty())
+            device_name = String::format("%02x", device_id);
+        if (class_name.is_empty())
+            class_name = String::format("%04x", class_id);
+
+        outln("{:04x}:{:02x}:{:02x}.{} {}: {} {} (rev {:02x})", seg, bus, slot, function, class_name, vendor_name, device_name, revision_id);
+    });
+
+    return 0;
+}