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netstat: Port to LibMain :^)

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This commit is contained in:
Andreas Kling 2021-11-29 21:26:35 +01:00
parent 2bb27184b4
commit 6e7ff8cf1c
2 changed files with 12 additions and 33 deletions
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44
Userland/Utilities/netstat.cpp
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@ -12,34 +12,17 @@
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <unistd.h>
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/proc/net", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/proc/all", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/etc/passwd", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil(nullptr, nullptr) < 0) {
perror("unveil");
return 1;
}
TRY(Core::System::pledge("stdio rpath"));
TRY(Core::System::unveil("/proc/net", "r"));
TRY(Core::System::unveil("/proc/all", "r"));
TRY(Core::System::unveil("/etc/passwd", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
bool flag_all = false;
bool flag_list = false;
@ -54,7 +37,7 @@ int main(int argc, char** argv)
args_parser.add_option(flag_tcp, "Display only TCP network connections", "tcp", 't');
args_parser.add_option(flag_udp, "Display only UDP network connections", "udp", 'u');
args_parser.add_option(flag_program, "Show the PID and name of the program to which each socket belongs", "program", 'p');
args_parser.parse(argc, argv);
args_parser.parse(arguments);
bool has_protocol_flag = (flag_tcp || flag_udp);
@ -202,14 +185,9 @@ int main(int argc, char** argv)
}
if (!has_protocol_flag || flag_udp) {
auto file = Core::File::construct("/proc/net/udp");
if (!file->open(Core::OpenMode::ReadOnly)) {
warnln("Error: {}", file->error_string());
return 1;
}
auto file = TRY(Core::File::open("/proc/net/udp", Core::OpenMode::ReadOnly));
auto file_contents = file->read_all();
auto json = JsonValue::from_string(file_contents).release_value_but_fixme_should_propagate_errors();
auto json = TRY(JsonValue::from_string(file_contents));
Vector<JsonValue> sorted_regions = json.as_array().values();
quick_sort(sorted_regions, [](auto& a, auto& b) {