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echo: os2prog
to: All
from: Thomas Seeling
date: 1997-01-14 10:25:34
subject: Re: When are socket handles inherited ?

* Crossposted in OS2PROG
* Crossposted in OS2.PROG.GER
* Crossposted in OS2NET.PROGRAMMIERUNG.GER

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* Forwarded von Thomas Seeling (2:244/1130.42)
* Area : emx
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From: "Peter Meerwald" 


>The doc clearly says "socket handles are not inherited across exec
and spawn",
> but I do a fork before and the doc says "Note that a process created by
>fork() inherits the socket handles of its parent process".

this is a limitation of OS/2 itself since sockets are not really
"native" (as the are under unix, where sockets are implemented in
the kernel).

you have to find a way to pass sockets over to another process:

1.  use pipes which are connected to the socket, then pass the pipes to the
new processs (pipes can be inherited)

2.  get the socket handle with _getsockhandle() and import this handle
number in the child process with _importsockhandle(), you have to pass the
socket handle somehow (i. e. on the command line)



Peter Meerwald                                  Schieástandstr. 3
seawood{at}very.priv.at                       A-5061 Elsbethen/Austria
                                                         fon/fax 43-662-627509



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