August 2008 - Darwin-dev - lists.apple.com

Building launchd.plist inside Core Foundation / Cocoa
by Andrew White 08 Aug '08

08 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.16 (Macintosh/20080707) -- Andrew White _______________________________________________ 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… Before I spend too much effort writing my own, is there an API to build a launchd.plist file from inside CoreFoundation or Cocoa? Or even just a list of the key strings as symbolic constants? Obviously, I can create it manually by building a dictionary and then calling [NSDictionary writeToFile: ...], but I'm trying to avoid reinventing (or rewriting?) the wheel. :) This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration to get BSD network device properties
by Andrew White 08 Aug '08

08 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.16 (Macintosh/20080707) SCNetworkInterfaceCopyAll() will give you an array of available network interfaces SCNetworkInterfaceGetInterfaceType() will tell you what "type" of a given interface SCNetworkInterfaceGetLocalizedDisplayName() will return a string like "Built-in Ethernet" Ah. That's the sort of information I want to get my hands on. -- Andrew White _______________________________________________ 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… Allan Nathanson wrote: If you are looking for information about the interface "type" (Ethernet, FireWire, Bluetooth, ...) than I'll point you towards the <SystemConfiguration/SCNetworkConfiguration.h> APIs. Specifically : Of course, there's many more questions to ask. For example, do you want information about ALL of the available interfaces or just those that have been configured? or just those that are active? or ... We have a relatively low-level multi-process networking service that needs to be tied to a particular interface (or interfaces), and I'm writing a preference pane and other admin stuff to allow the user to configure it. As such, I need to access the list of interfaces, filter them based on which ones are appropriate, and then present the results to the user to select from. SCNetworkInterface seems to be exactly the information I'm looking for. The higher level APIs all assume I'm wanting to manage connections, but I'm actually just concerned with the local interfaces (the service components themselves handle connections, where required). I won't use the 'write' parts of the API, but I need the 'read' parts. :) This email sent to site_archiver(a)lists.apple.com

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Apology
by Fritz Anderson 07 Aug '08

07 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I apologize, and will not repeat the error. — F _______________________________________________ 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… In the course of redirecting a spam email to a junkmail-training address, I accidentally redirected it to the scores of original recipients. This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration to get BSD network device properties
by Allan Nathanson 07 Aug '08

07 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com SCNetworkInterfaceCopyAll() will give you an array of available network interfaces SCNetworkInterfaceGetInterfaceType() will tell you what "type" of a given interface SCNetworkInterfaceGetLocalizedDisplayName() will return a string like "Built-in Ethernet" - Allan On Aug 6, 2008, at 10:32 PM, Andrew White wrote: CFStringRef intfKey = SCDynamicStoreKeyCreateNetworkInterface ( NULL, kSCDynamicStoreDomainState ); CFPropertyListRef intfRef = SCDynamicStoreCopyValue (_store, intfKey); Platform is 10.4.x and up. Currently using 10.4.11 and XCode 2.4.1. Thanks -- Andrew White _______________________________________________ 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/ajn%40apple.com _______________________________________________ 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… If you are looking for information about the interface "type" (Ethernet, FireWire, Bluetooth, ...) than I'll point you towards the <SystemConfiguration/SCNetworkConfiguration.h> APIs. Specifically : Of course, there's many more questions to ask. For example, do you want information about ALL of the available interfaces or just those that have been configured? or just those that are active? or ... I'm trying to use Core Foundation's system configuration to get information on the installed network devices. The following gets me a dictionary containing a key 'Interfaces' which has an array of BSD interface names: Given this info, I can iterate through the interfaces, but the info I can get seems limited. What I really want to know is the interface type, but using the Hardware key (for example) doesn't seem to do anything. I can get the IPv4 addressing information (see next snipppet), but that's not really what I want. Getting addresses: for interface 'name', this gets an dictionary containing "Addresses", "Broadcast Masks", and "Subnet Masks". CFStringRef intfEntityKey = SCDynamicStoreKeyCreateNetworkInterfaceEntity ( NULL, kSCDynamicStoreDomainState, name, kSCEntNetIPv4 ); CFPropertyListRef intf = SCDynamicStoreCopyValue (_store, intfEntityKey); Is there a way to get this stuff from the dynamic store NetworkInterface info, or do I need to go digging elsewhere? Do I need to use the POSIX API to get this info? This email sent to ajn(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration to get BSD network device properties
by Eli Bach 07 Aug '08

07 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:mime-version :subject:date:references:x-mailer; bh=nKafSh++KKB1Vj29nCEFf1U0m3SnHhz0ewtz6ioYGkE=; b=tJFipuAiibQMTbSUbnfIbvx1ylcvbyDTCvG9e+nnFa5vT6kJjSvQLRBq7zXaTXC7LR eKW/LQPj0bdkwp8boJCvj+hqfjYxuOETnlyx0hhEOMUT23hLMC4lMn+rScAnsRenoCM1 rGKVE2YLGW5l08h0KH/AGDtrx3MKWa/OxfWB0= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:in-reply-to:content-type :content-transfer-encoding:mime-version:subject:date:references :x-mailer; b=V19B2wh8JPMCPQnv8czxUo0ndCm4RsrNhJ36Dzp0iNC9EBbUwwTAZVqJUt6KwUqu5M sUFM3VD13zmaHjP1igmHAHlRnYg7QKyyvUoqc0zxvXci1rprNMmU5ecY9d5GEO3fAbG3 I52PcNRprurKvSvuE1LXlpDaD+DyiVzpuoyqo= On Aug 6, 2008, at 7:32 PM, Andrew White wrote: scutil _______________________________________________ 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… Is there a way to get this stuff from the dynamic store NetworkInterface info, or do I need to go digging elsewhere? Do I need to use the POSIX API to get this info? Platform is 10.4.x and up. Currently using 10.4.11 and XCode 2.4.1. The best way I've found to find out what's in SystemConfiguration, as it's layout is <cough>not very well documented</cough> is to explore it using: With this tool, you can see the layout of all the dictionaries, what's in them, and figure out how they are linked together. This email sent to site_archiver(a)lists.apple.com

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Using SystemConfiguration to get BSD network device properties
by Andrew White 07 Aug '08

07 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.16 (Macintosh/20080707) CFStringRef intfKey = SCDynamicStoreKeyCreateNetworkInterface ( NULL, kSCDynamicStoreDomainState ); CFPropertyListRef intfRef = SCDynamicStoreCopyValue (_store, intfKey); CFStringRef intfEntityKey = SCDynamicStoreKeyCreateNetworkInterfaceEntity ( NULL, kSCDynamicStoreDomainState, name, kSCEntNetIPv4 ); CFPropertyListRef intf = SCDynamicStoreCopyValue (_store, intfEntityKey); Platform is 10.4.x and up. Currently using 10.4.11 and XCode 2.4.1. Thanks -- Andrew White _______________________________________________ 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'm trying to use Core Foundation's system configuration to get information on the installed network devices. The following gets me a dictionary containing a key 'Interfaces' which has an array of BSD interface names: Given this info, I can iterate through the interfaces, but the info I can get seems limited. What I really want to know is the interface type, but using the Hardware key (for example) doesn't seem to do anything. I can get the IPv4 addressing information (see next snipppet), but that's not really what I want. Getting addresses: for interface 'name', this gets an dictionary containing "Addresses", "Broadcast Masks", and "Subnet Masks". Is there a way to get this stuff from the dynamic store NetworkInterface info, or do I need to go digging elsewhere? Do I need to use the POSIX API to get this info? This email sent to site_archiver(a)lists.apple.com

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Re: Modifying launchd-compliant daemon's plist from within the deamon.
by Maxim Zhuravlev 05 Aug '08

05 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=k+wxif9kFuoM2+v9rHOkfvJ6Zr5TWkpCeTRTyA3GAsw=; b=WBCa4p1SxqUMqYUiuevFHB0vi3sfaxfWnp7w9T9zV4jZLdeYYspjBKH4Von4Vx2kDL mNRfsblnAjXbFNz1uQFcETeRThHqiwj7+M4SITqzRBIx2VFo4kF01I9zZT27pj28qCnE TSAbd/1nxAiHO4mUH1BIKfP4H7BtpKA7LJKkU= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=eXHgFxVnenuCcPFBHJeYnIVCHE0fj68irCa9dJEqRQKvzLLM82YDFr7hfqTn/vnKHb hgTeSHURnLTwmU1q4a7y4qIxWiwAxMoEVkjAoqeJNvB3ew+jGszNjEdPCnzXjrdJ8E2W P83yblpAR1u6XwBxSuFwLPU+A4mdX8PSxhcAE= Hi, Dave. > We'd advise against using the launchd configuration file as a substitute for > a real configuration file. Please consider just leaving "RunAtLoad" == true > and then have your program read a configuration file to determine whether > any action is necessary. Actually, some questions arise on the way: 1) Are there any launchd-provided or another *out-of-the-box* ways to distinguish, whether the daemon is launched at boot time or by WatchPaths paths modification, so that it can decide to proceed with conditional or unconditional processing respectively? 2) And still, if I refactor my code to use ex. sockets, how do I change RunAtLoad key value from within the daemon? Would launch_data_set_bool (runatload_key, ( user_defined_value == true_value ) ? true: false ) be enough, or do I need to send some message? I insist, cause this seems to be the most elegant way so far. Thanks in advance, - Maxim. _______________________________________________ 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: Modifying launchd-compliant daemon's plist from within the deamon.
by Dave Zarzycki 05 Aug '08

05 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Maxim, davez On Aug 5, 2008, at 8:05 AM, Maxim Zhuravlev wrote: Ok, thanks, I get it. Nevertheless, could you, please, give me a hint, why do I get the EACCES while checkin? Thanks in advance, - Maxim. _______________________________________________ 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… For better and for worse, "checking in" under the Leopard OS only works for jobs that vend Unix or Mach based services (sockets and ports respectively). This email sent to site_archiver(a)lists.apple.com

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Re: Modifying launchd-compliant daemon's plist from within the deamon.
by Maxim Zhuravlev 05 Aug '08

05 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=SkqK3Q6lw7StXFfwyyEgdAa+EF+T6Wmp4iFhomXIKXU=; b=tE1/QI3FCMOsbmUsTIOiCABppSyUxDsr9IYAJq3jGBoeqkO6RPHk+C61ajnqYV5pLH +VPQ14fVUGC82p6UQjPIye4LHeTPZCLEp5d13y1ARh9O1ecB/vjqWpOEfzrO+BTmyiME 5k3cKTUrYRGImxfgGsEI3AdEXuh87Rkf6HMjk= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=Jp2h1sbNm0URpFtNNmMMF2+aFjtJIm6f3iSdRbTrfp1BBq3Fd+QjZCLBQLPVcgSJEl o93wkqsBfvt75oqTdOd6LzlOJDrx/BC4OA/aloEWkoUB7s2gkrDlyPVaZirAK/ZknCFi fzvzyBAs0zEUabHXYgY8/2WDh78Cs4xhAZgxk= Ok, thanks, I get it. Nevertheless, could you, please, give me a hint, why do I get the EACCES while checkin? Thanks in advance, - Maxim. _______________________________________________ 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: Modifying launchd-compliant daemon's plist from within the deamon.
by Dave Zarzycki 05 Aug '08

05 Aug '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Maxim, Thanks! davez On Aug 5, 2008, at 4:55 AM, Maxim Zhuravlev wrote: Hi, all. I'm to implement a daemon, that should change RunAtLoad key value on a user demand. I guess, the following code should do the thing: <code> if ( ( checkin_request = launch_data_new_string( LAUNCH_KEY_CHECKIN ) ) == NULL ) { fprintf(stderr,"unable to init checkin request\n"); return; } if ( ( checkin_response = launch_msg( checkin_request ) ) == NULL ) { fprintf(stderr,"unable to get checkin response\n"); return; } if ( launch_data_get_type( checkin_response ) == LAUNCH_DATA_ERRNO ) <--- HERE ERRNO=13 ERROR OCCURE { fprintf(stderr,"checkin failed with errno = %d\n", launch_data_get_errno(checkin_response) ); return; } if ( ( runatload_key = launch_data_dict_lookup( checkin_response, LAUNCH_JOBKEY_RUNATLOAD ) ) == NULL ) { fprintf(stderr,"unable to get RunAtLoad key\n"); return; } if ( launch_data_set_bool (runatload_key, ( user_defined_value == true_value ) ? true: false ) == false ) { fprintf(stderr,"unable to set RunAtLoad key\n"); return; } if ( launch_msg( runatload_key ) == NULL ) { fprintf(stderr,"unable to msg RunAtLoad\n"); return; } </code> Here is my *.plist file: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>blah-blah</string> <key>RunAtLoad</key> <false/> <key>ServiceIPC</key> <true/> <key>WatchPaths</key> <array> <string>some_kickstart_path</string> </array> </dict> </plist> And the question is: why do I get errno=13 error, while checkin. Thaks in advance, - Maxim. _______________________________________________ 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/zarzycki%40apple.com _______________________________________________ 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… We'd advise against using the launchd configuration file as a substitute for a real configuration file. Please consider just leaving "RunAtLoad" == true and then have your program read a configuration file to determine whether any action is necessary. This email sent to zarzycki(a)apple.com This email sent to site_archiver(a)lists.apple.com

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