Implement MSG_NOSIGNAL
* Part of latest POSIX specification, this prevents send() on a closed socket to raise a SIGPIPE signal (but EPIPE is returned).
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@ -121,6 +121,7 @@ struct msghdr {
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#define MSG_BCAST 0x0100 /* this message rec'd as broadcast */
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#define MSG_MCAST 0x0200 /* this message rec'd as multicast */
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#define MSG_EOF 0x0400 /* data completes connection */
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#define MSG_NOSIGNAL 0x0800 /* don't raise SIGPIPE if socket is closed */
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struct cmsghdr {
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socklen_t cmsg_len;
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@ -785,8 +785,10 @@ TCPEndpoint::SendData(net_buffer *buffer)
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MutexLocker lock(fLock);
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TRACE("SendData(buffer %p, size %lu, flags %lx) [total %lu bytes, has %lu]",
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buffer, buffer->size, buffer->flags, fSendQueue.Size(),
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fSendQueue.Free());
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buffer, buffer->size, buffer->flags, fSendQueue.Size(),
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fSendQueue.Free());
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uint32 flags = buffer->flags;
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if (fState == CLOSED)
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return ENOTCONN;
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@ -794,12 +796,11 @@ TCPEndpoint::SendData(net_buffer *buffer)
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return EDESTADDRREQ;
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if (!is_writable(fState) && !is_establishing(fState)) {
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// we only send signals when called from userland
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if (gStackModule->is_syscall())
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if (gStackModule->is_syscall() && (flags & MSG_NOSIGNAL != 0))
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send_signal(find_thread(NULL), SIGPIPE);
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return EPIPE;
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}
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uint32 flags = buffer->flags;
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size_t left = buffer->size;
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bigtime_t timeout = absolute_timeout(socket->send.timeout);
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