Add support for MIT-SHM AttachFd request

This passes a file descriptor from the client to the server, which is
then mmap'd

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/os/io.c b/os/io.c
index 83df6e9b0..a20faa56f 100644
--- a/os/io.c
+++ b/os/io.c
@@ -506,6 +506,14 @@ ReadFdFromClient(ClientPtr client)
     return fd;
 }
 
+int
+WriteFdToClient(ClientPtr client, int fd, Bool do_close)
+{
+    OsCommPtr oc = (OsCommPtr) client->osPrivate;
+
+    return _XSERVTransSendFd(oc->trans_conn, fd, do_close);
+}
+
 /*****************************************************************
  * InsertFakeRequest
  *    Splice a consed up (possibly partial) request in as the next request.