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LibCore: Implement LocalSocket::peer_pid

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Mostly a copy of Core::LocalSocket::peer_pid.
This commit is contained in:
sin-ack 2022-01-14 13:25:37 +00:00 committed by Ali Mohammad Pur
parent 92be52fd9f
commit 4cad0dd74c
Notes: sideshowbarker 2024-07-17 20:52:23 +09:00 
Author: https://github.com/sin-ack
Commit: https://github.com/SerenityOS/serenity/commit/4cad0dd74c2
Pull-request: https://github.com/SerenityOS/serenity/pull/11890
2 changed files with 37 additions and 0 deletions
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36
Userland/Libraries/LibCore/Stream.cpp
View File

@ -568,6 +568,42 @@ ErrorOr<void> LocalSocket::send_fd(int fd)
#endif
}
ErrorOr<pid_t> LocalSocket::peer_pid() const
{
#ifdef AK_OS_MACOS
pid_t pid;
socklen_t pid_size = sizeof(pid);
#elif defined(__FreeBSD__)
struct xucred creds = {};
socklen_t creds_size = sizeof(creds);
#elif defined(__OpenBSD__)
struct sockpeercred creds = {};
socklen_t creds_size = sizeof(creds);
#else
struct ucred creds = {};
socklen_t creds_size = sizeof(creds);
#endif
#ifdef AK_OS_MACOS
if (getsockopt(m_helper.fd(), SOL_LOCAL, LOCAL_PEERPID, &pid, &pid_size) < 0)
#elif defined(__FreeBSD__)
if (getsockopt(m_helper.fd(), SOL_LOCAL, LOCAL_PEERCRED, &creds, &creds_size) < 0)
#else
if (getsockopt(m_helper.fd(), SOL_SOCKET, SO_PEERCRED, &creds, &creds_size) < 0)
#endif
{
return Error::from_syscall("getsockopt", -errno);
}
#ifdef AK_OS_MACOS
return pid;
#elif defined(__FreeBSD__)
return creds.cr_pid;
#else
return creds.pid;
#endif
}
ErrorOr<size_t> LocalSocket::read_without_waiting(Bytes buffer)
{
return m_helper.read(buffer, MSG_DONTWAIT);

1
Userland/Libraries/LibCore/Stream.h
View File

@ -413,6 +413,7 @@ public:
ErrorOr<int> receive_fd(int flags);
ErrorOr<void> send_fd(int fd);
ErrorOr<pid_t> peer_pid() const;
ErrorOr<size_t> read_without_waiting(Bytes buffer);
virtual ~LocalSocket() { close(); }