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LibCore: Port Socket to GNU Hurd

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The Hurd supports sending file descriptors over local sockets using
the SCM_RIGHTS / cmsg mechanism just like the other systems. It doesn't
have anything like ucred/PEERCRED, though.
This commit is contained in:
Sergey Bugaev 2023-09-03 22:26:10 +03:00 committed by Andrew Kaster
parent 79431b32b2
commit f31df017f9
1 changed files with 5 additions and 3 deletions
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8
Userland/Libraries/LibCore/Socket.cpp
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@ -282,7 +282,7 @@ ErrorOr<int> LocalSocket::receive_fd(int flags)
{
#if defined(AK_OS_SERENITY)
return Core::System::recvfd(m_helper.fd(), flags);
#elif defined(AK_OS_LINUX) || defined(AK_OS_BSD_GENERIC)
#elif defined(AK_OS_LINUX) || defined(AK_OS_GNU_HURD) || defined(AK_OS_BSD_GENERIC)
union {
struct cmsghdr cmsghdr;
char control[CMSG_SPACE(sizeof(int))];
@ -323,7 +323,7 @@ ErrorOr<void> LocalSocket::send_fd(int fd)
{
#if defined(AK_OS_SERENITY)
return Core::System::sendfd(m_helper.fd(), fd);
#elif defined(AK_OS_LINUX) || defined(AK_OS_BSD_GENERIC)
#elif defined(AK_OS_LINUX) || defined(AK_OS_GNU_HURD) || defined(AK_OS_BSD_GENERIC)
char c = 'F';
struct iovec iov {
.iov_base = &c,
@ -373,6 +373,8 @@ ErrorOr<pid_t> LocalSocket::peer_pid() const
#elif defined(AK_OS_SOLARIS)
ucred_t* creds = NULL;
socklen_t creds_size = sizeof(creds);
#elif defined(AK_OS_GNU_HURD)
return Error::from_errno(ENOTSUP);
#else
struct ucred creds = {};
socklen_t creds_size = sizeof(creds);
@ -390,7 +392,7 @@ ErrorOr<pid_t> LocalSocket::peer_pid() const
#elif defined(AK_OS_SOLARIS)
TRY(System::getsockopt(m_helper.fd(), SOL_SOCKET, SO_RECVUCRED, &creds, &creds_size));
return ucred_getpid(creds);
#else
#elif !defined(AK_OS_GNU_HURD)
TRY(System::getsockopt(m_helper.fd(), SOL_SOCKET, SO_PEERCRED, &creds, &creds_size));
return creds.pid;
#endif