nk@home.sybase.com (Nicolai Kosche) (05/31/91)
Hello,
I am looking for some pointers in granting port permissions to a
child process.
I have done the following so far (read down in chronological order):
Parent Process Child Process
port_allocate
port_set_backlog (not needed)
netname_check_in
fork sleep
task_by_unix_pid
(grant permission to task)
msg_receive
netname_look_up
msg_send
On the child's msg_send I get a permission error. Ports are not
inherited by children.
Paraphrasing: what mach calls do I use to grant my child process
receive and/or send rights to the port owned by the parent process?
MiG apparently sets permissions in its internal routines. I don't
mind using MiG, but I need an asynchronous interface.
Thanks a million for your help.
Nicolai Kosche nk@sybase.com {pyramid,sun,mtxinu}!sybase!nk
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