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e352ee23e5
In the code below, db could be null, and would cause UB. Instead of crashing, let's simply skip symbolicating names. Fixes #1247
109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/JsonArray.h>
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#include <AK/JsonObject.h>
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#include <AK/String.h>
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#include <LibCore/File.h>
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#include <LibPCIDB/Database.h>
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#include <stdio.h>
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int main(int argc, char** argv)
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{
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UNUSED_PARAM(argc);
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UNUSED_PARAM(argv);
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if (pledge("stdio rpath", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/res/pci.ids", "r") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil("/proc/pci", "r") < 0) {
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perror("unveil");
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return 1;
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}
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unveil(nullptr, nullptr);
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auto db = PCIDB::Database::open();
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if (!db)
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fprintf(stderr, "Couldn't open PCI ID database\n");
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auto proc_pci = Core::File::construct("/proc/pci");
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if (!proc_pci->open(Core::IODevice::ReadOnly)) {
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fprintf(stderr, "Error: %s\n", proc_pci->error_string());
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return 1;
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}
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if (pledge("stdio", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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auto file_contents = proc_pci->read_all();
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auto json = JsonValue::from_string(file_contents).as_array();
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json.for_each([db](auto& value) {
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auto dev = value.as_object();
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auto seg = dev.get("seg").to_u32();
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auto bus = dev.get("bus").to_u32();
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auto slot = dev.get("slot").to_u32();
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auto function = dev.get("function").to_u32();
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auto vendor_id = dev.get("vendor_id").to_u32();
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auto device_id = dev.get("device_id").to_u32();
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auto revision_id = dev.get("revision_id").to_u32();
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auto class_id = dev.get("class").to_u32();
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String vendor_name;
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String device_name;
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String class_name;
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if (db) {
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vendor_name = db->get_vendor(vendor_id);
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device_name = db->get_device(vendor_id, device_id);
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class_name = db->get_class(class_id);
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}
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if (vendor_name.is_empty())
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vendor_name = String::format("%02x", vendor_id);
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if (device_name.is_empty())
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device_name = String::format("%02x", device_id);
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if (class_name.is_empty())
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class_name = String::format("%04x", class_id);
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printf("%04x:%02x:%02x.%d %s: %s %s (rev %02x)\n",
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seg, bus, slot, function,
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class_name.characters(), vendor_name.characters(),
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device_name.characters(), revision_id);
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});
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return 0;
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}
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