March 2009 - Darwin-dev - lists.apple.com

Re: disabling Keybbord inputs
by Eric Schlegel 31 Mar '09

31 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Mar 31, 2009, at 2:55 PM, Manish Chaturvedi wrote: Hi all, You might want to look at the CoreGraphics CGEventTap API. -eric _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I am wring an application which should block all the Keyboard inputs once user selects the option Block the inputs. There is a way to handle or ignore keyboard signals on Windows but cannot see any such way on Mac. Is there is any way to block all keyboard inputs on Mac? In this case user should not be able to give keyboard inputs to the whole Mac machine? This email sent to site_archiver(a)lists.apple.com

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disabling Keybbord inputs
by Manish Chaturvedi 31 Mar '09

31 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AQHJskteQTVwrISJAUGvgy0PpwUV8w== Thread-topic: disabling Keybbord inputs _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: DSS crashes after accepting request for sdp file
by Justin C. Walker 31 Mar '09

31 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Check <http://lists.apple.com> HTH Justin On Mar 31, 2009, at 08:08 , Zelalem Sintayehu wrote: - Zelalem -- Justin C. Walker, Curmudgeon-at-Large () The ASCII Ribbon Campaign /\ Help Cure HTML Email _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… The supported mailing lists are described there, including those dealing with the streaming server. Hi, hoping to stream different video files one after the other, I used the management console to create a playlist and tried to open the sdp file using vlc. But this has resulted Darwin to crash. Did anyone observed such a behaviour. By the way, is tehre any other way stream different video files one after the other? The following is the log file. The second bulleted sttement shows Darwin's crash after the request. #Log File Created On: 03/31/2009 16:54:58 2009-03-31 16:54:58: WARNING: Streaming Server is not listening for RTSP on any ports. # Streaming SHUTDOWN 2009-03-31 16:54:58 # Streaming STARTUP 2009-03-31 16:54:58 2009-03-31 16:54:58: WARNING: Another process is already using the following RTSP port: 554 2009-03-31 16:54:58: WARNING: Another process is already using the following RTSP port: 7070 2009-03-31 16:54:58: WARNING: Another process is already using the following RTSP port: 8000 2009-03-31 16:54:58: WARNING: Another process is already using the following RTSP port: 8001 2009-03-31 16:54:58: WARNING: Streaming Server failed to listen on all requested RTSP port(s). 2009-03-31 16:54:58: WARNING: Streaming Server is not listening for RTSP on any ports. Thanks in advance. _________________________________________________________________ More than messages–check out the rest of the Windows Live™. http://www.microsoft.com/windows/windowslive/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/justin%40mac.com This email sent to justin(a)mac.com This email sent to site_archiver(a)lists.apple.com

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DSS crashes after accepting request for sdp file
by Zelalem Sintayehu 31 Mar '09

31 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Importance: Normal _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Launchctl question
by Tim Murison 31 Mar '09

31 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcmyB3CTlXPi39oNMk+dvROuZ476qg== Thread-topic: Launchctl question User-agent: Microsoft-Entourage/12.15.0.081119 > Your agent should accept a message or signal that will cause it to > restart itself. Why do you believe unloading and loading the agent is > necessary? Are you running an installer or something? Yes, this is part of an install. > This will spawn a new process for your script in the bootstrap context > that your agent is running in. The invocations of launchctl from that > script will inherit the correct environment and talk to the correct > launchd. I just want to be using the lowest possible privilege at all times, as any good application should do. I'm having trouble determining what permissions the UID controls and what permissions the bootstrap context controls. *********************************************************************** This e-mail and its attachments are confidential, legally privileged, may be subject to copyright and sent solely for the attention of the addressee(s). Any unauthorized use or disclosure is prohibited. Statements and opinions expressed in this e-mail may not represent those of Radialpoint. Le contenu de ce courriel est confidentiel, privilégié et peut être soumis à des droits d'auteur. Il est envoyé à l'intention exclusive de son ou de ses destinataires. Il est interdit de l'utiliser ou de le divulguer sans autorisation. Les opinions exprimées dans le présent courriel peuvent diverger de celles de Radialpoint. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: [Darwin-Dev] open file descriptors for a process?
by Dave Keck 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com #include <libproc.h> #include <sys/proc_info.h> #include <stdlib.h> int num_fd_for_pid(pid_t pid) { struct proc_fdinfo *temp_buffer; int pidinfo_result, result; pidinfo_result = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, NULL, 0); if (pidinfo_result <= 0) return pidinfo_result; temp_buffer = malloc(pidinfo_result); pidinfo_result = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, temp_buffer, pidinfo_result); free(temp_buffer); if (pidinfo_result <= 0) return pidinfo_result; result = (pidinfo_result / PROC_PIDLISTFD_SIZE); return result; } Just whipped that up, seems to work but no guarantees yada yada. Also, libproc.h states: /* * This header file contains private interfaces to obtain process information. * These interfaces are subject to change in future releases. */ _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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[Darwin-Dev] open file descriptors for a process?
by Alexander von Below 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, Any pointers are appreciated. Thanks Alex _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… how can I find how many file descriptors a process is using. Or rather, I am getting an NSError with EMFILE, and I would like to trace where that comes from. I have tried lsof, but that lists open files (which is not exactly file descriptors) This email sent to site_archiver(a)lists.apple.com

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Re: Launchctl question
by Damien Sorresso 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, I'm trying to restart my launch agent running as a user from a script running as root. I tried the obvious: sudo -u my_user launchctl load /Library/LaunchAgents/myproduct.plist and I get "Socket is not connected." #!/bin/sh launchctl unload /Library/LaunchAgents/myproduct.plist launchctl load /Library/LaunchAgents/myproduct.plist You would then do something like this from your script running as root. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com On Mar 30, 2009, at 1:32 PM, Tim Murison wrote: I've googled around a bit and found many people with the same problem, but no solutions. Does anyone here know a way around this? sudo changes credentials, not environment. You're changing to a user who does not have privileges to write to the root user's launchd socket, thus the connection fails, and this error message gets printed. Please keep in mind that UID is not the sole arbiter of capabilities on Mac OS X. The bootstrap your process resides in also determines its capabilities (like joining the active WindowServer session, security session, etc.). Your agent should accept a message or signal that will cause it to restart itself. Why do you believe unloading and loading the agent is necessary? Are you running an installer or something? What I'd recommend is writing a small script to unload and load the job. It would consist of: launchctl bsexec <AgentPID> <PathToTheAboveScript> This will spawn a new process for your script in the bootstrap context that your agent is running in. The invocations of launchctl from that script will inherit the correct environment and talk to the correct launchd. -- Damien Sorresso BSD Engineering Apple Inc. smime.p7s

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Re: Launchctl question
by Tim Murison 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcmxekK01xjCsCdFj0m6QE5UvzLmeQAAhHhu Thread-topic: Launchctl question User-agent: Microsoft-Entourage/12.15.0.081119 >> http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/ManPages/man1/lau…>> h >> ctl.1.html > > Thanks, I've tried a few permutations of bsexec and it isn't really doing > what I want. The process winds up running as root, and seems to have access > to my logged in user's GUI. > > Am I doing something wrong? Is the use of LAUNCHD_SOCKET supported? Doing something like this yields the result I'm after: sudo -u user bash -c 'LAUNCHD_SOCKET=my_sock launchctl load myproduct.plist' *********************************************************************** This e-mail and its attachments are confidential, legally privileged, may be subject to copyright and sent solely for the attention of the addressee(s). Any unauthorized use or disclosure is prohibited. Statements and opinions expressed in this e-mail may not represent those of Radialpoint. Le contenu de ce courriel est confidentiel, privilégié et peut être soumis à des droits d'auteur. Il est envoyé à l'intention exclusive de son ou de ses destinataires. Il est interdit de l'utiliser ou de le divulguer sans autorisation. Les opinions exprimées dans le présent courriel peuvent diverger de celles de Radialpoint. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Launchctl question
by Tim Murison 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcmxekK01xjCsCdFj0m6QE5UvzLmeQ== Thread-topic: Launchctl question User-agent: Microsoft-Entourage/12.15.0.081119 > http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/ManPages/man1/lau… > ctl.1.html Thanks, I've tried a few permutations of bsexec and it isn't really doing what I want. The process winds up running as root, and seems to have access to my logged in user's GUI. Am I doing something wrong? *********************************************************************** This e-mail and its attachments are confidential, legally privileged, may be subject to copyright and sent solely for the attention of the addressee(s). Any unauthorized use or disclosure is prohibited. Statements and opinions expressed in this e-mail may not represent those of Radialpoint. Le contenu de ce courriel est confidentiel, privilégié et peut être soumis à des droits d'auteur. Il est envoyé à l'intention exclusive de son ou de ses destinataires. Il est interdit de l'utiliser ou de le divulguer sans autorisation. Les opinions exprimées dans le présent courriel peuvent diverger de celles de Radialpoint. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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