Thank you Peter for your time and help. Here is a extract from channel.c /* * libssh2_channel_get_exit_status * * Return the channel's program exit status. Note that the actual protocol * provides the full 32bit this function returns. We cannot abuse it to * return error values in case of errors so we return a zero if channel is * NULL. */
Now this makes sense, but sending back zero seems peculiar to me. zero is a valid shell exit code, so we should send back something out of valid shell exit codes in case channel is None. How about -1? I have tried the SIGKILL, I get back a zero from libssh2_channel_get_exit_status() Once again, thanks a lot for your help. Regards Aalok > > ------------------------------ > > Message: 4 > Date: Thu, 12 Jul 2012 18:44:38 +0200 > From: Peter Stuge <pe...@stuge.se> > To: libssh2-devel@cool.haxx.se > Subject: Re: weird libssh2_channel_get_exit_status behaviour > Message-ID: <20120712164438.4808.qm...@stuge.se> > Content-Type: text/plain; charset=us-ascii > > aalok sood wrote: > > libssh2_channel_get_exit_status documentation says that it returns 0 > > on error > > > > How do I distinguish between and an Error and a exit_status of 0 > > You can't. libssh2 would have to be extended in order to tell exit > status 0 from an error. Feel free to do this and propose a patch. > > > > I am not sure how I can handle the case where in the remote process > > running the command got killed? > > This is a separate question, and the answer is that you can only do > this by making the remote process handle the signal it gets sent, and > exit with a special exit code, which signals that it was killed. > > Note that you can not handle SIGKILL. I am unsure what happens for > that case, but I am also curious to know so please try it out and let > us know. > > > //Peter > > > ------------------------------ > > _______________________________________________ > libssh2-devel mailing list > libssh2-devel@cool.haxx.se > http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel > > > End of libssh2-devel Digest, Vol 38, Issue 5 > ******************************************** >
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