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/*
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <Kernel/API/InodeWatcherEvent.h>
#include <LibCore/FileWatcher.h>
#include <LibCore/MappedFile.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <serenity.h>
#include <spawn.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
static void wait_until_coredump_is_ready(const String& coredump_path)
{
while (true) {
struct stat statbuf;
if (stat(coredump_path.characters(), &statbuf) < 0) {
perror("stat");
VERIFY_NOT_REACHED();
}
if (statbuf.st_mode & 0400) // Check if readable
break;
usleep(10000); // sleep for 10ms
}
}
static void launch_crash_reporter(const String& coredump_path, bool unlink_on_exit)
{
pid_t child;
const char* argv[4] = { "CrashReporter" };
if (unlink_on_exit) {
argv[1] = "--unlink";
argv[2] = coredump_path.characters();
argv[3] = nullptr;
} else {
argv[1] = coredump_path.characters();
argv[2] = nullptr;
}
if ((errno = posix_spawn(&child, "/bin/CrashReporter", nullptr, nullptr, const_cast<char**>(argv), environ))) {
perror("posix_spawn");
} else {
if (disown(child) < 0)
perror("disown");
}
}
ErrorOr<int> serenity_main(Main::Arguments)
{
TRY(Core::System::pledge("stdio rpath wpath cpath proc exec"));
Core::BlockingFileWatcher watcher;
TRY(watcher.add_watch("/tmp/coredump", Core::FileWatcherEvent::Type::ChildCreated));
while (true) {
auto event = watcher.wait_for_event();
VERIFY(event.has_value());
if (event.value().type != Core::FileWatcherEvent::Type::ChildCreated)
continue;
auto& coredump_path = event.value().event_path;
dbgln("New coredump file: {}", coredump_path);
wait_until_coredump_is_ready(coredump_path);
auto file_or_error = Core::MappedFile::map(coredump_path);
if (file_or_error.is_error()) {
dbgln("Unable to map coredump {}: {}", coredump_path, file_or_error.error());
continue;
}
launch_crash_reporter(coredump_path, true);
}
}
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