March 2005 - Darwin-dev - lists.apple.com

Re: NetInfo -> Directory Services
by Jason Townsend 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com So: dscl localhost -list NetInfo/Config/dhcp/subnets Through dscl you could do something like this: dscl . -list /dsRecTypeNative:config\\/dhcp\\/subnets Hope that helps, -Jason _______________________________________________ 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… On Mar 30, 2005, at 12:07 PM, Ryan McGann wrote: On Mar 30, 2005, at 5:36 AM, Giuliano Gavazzi wrote: I'm trying to convert my use of NetInfo APIs to Directory Services APIs, and I'm having problems. I want to access the DHCP information added by Internet Sharing, which is stored in NetINnfo at /config/dhcp/subnets. However, dscl consistently complains that /config/dhcp/subnets is an invalid path. To duplicate: 1. Turn on Internet Sharing in Mac OS X (System Preferences -> Sharing -> Internet) 2. From Terminal, query Directory Services: dscl localhost -list /NetInfo/config/dhcp/subnets In the NetInfo Admin Utility you can see that this path exists and has children, so why can't Directory Services see them? because you should have run the command in interactive mode and found out that you don't need the leading /. Nope, that still doesn't work. Without the leading slash, I still can't see children in NetInfo/config/dhcp. If I use: dscl localhost -list NetInfo/config/ I can see AppleFileServer, dhcp and ntp listed as children, but if I use dscl localhost -list NetInfo/config/dhcp It has no children. Typing dscl localhost -read NetInfo/config/dhcp I see several propertis lie dhcp_enabled and detect_other_dhcp_server, but I don't see the subnets child. It still shows up in NetInfo Manager though. Arg! Directory Services/Open Directory does not support arbitrary nesting in the way that NetInfo does... each node has a flat list of record types and within that is a flat list of records. However, It is possible to do what you want using native record types, but the / delimiter can sometimes be a challenge to pass in to dscl properly due to the shell. If you are using the DS API, you can use a record type of dsRecTypeNative:config/dhcp/subnets and then just use the appropriate record name for each subnet. The two backslashes are needed since the shell usually converts those to one backslash before passing to the tool, and slashes that should be part of the record type or the record name need to be escaped. This email sent to site_archiver(a)lists.apple.com

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Re: NetInfo -> Directory Services
by Ryan McGann 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Mar 30, 2005, at 5:36 AM, Giuliano Gavazzi wrote: So: Ryan _______________________________________________ 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 convert my use of NetInfo APIs to Directory Services APIs, and I'm having problems. I want to access the DHCP information added by Internet Sharing, which is stored in NetINnfo at /config/dhcp/subnets. However, dscl consistently complains that /config/dhcp/subnets is an invalid path. To duplicate: 1. Turn on Internet Sharing in Mac OS X (System Preferences -> Sharing -> Internet) 2. From Terminal, query Directory Services: dscl localhost -list /NetInfo/config/dhcp/subnets In the NetInfo Admin Utility you can see that this path exists and has children, so why can't Directory Services see them? because you should have run the command in interactive mode and found out that you don't need the leading /. dscl localhost -list NetInfo/Config/dhcp/subnets Nope, that still doesn't work. Without the leading slash, I still can't see children in NetInfo/config/dhcp. If I use: dscl localhost -list NetInfo/config/ I can see AppleFileServer, dhcp and ntp listed as children, but if I use dscl localhost -list NetInfo/config/dhcp It has no children. Typing dscl localhost -read NetInfo/config/dhcp I see several propertis lie dhcp_enabled and detect_other_dhcp_server, but I don't see the subnets child. It still shows up in NetInfo Manager though. Arg! There are three kinds of people in the world: Those that can count, and those that can't. This email sent to site_archiver(a)lists.apple.com

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Re: NetInfo -> Directory Services
by Giuliano Gavazzi 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com So: dscl localhost -list NetInfo/Config/dhcp/subnets Giuliano _______________________________________________ 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… At 5:10 pm -0800 2005/03/29, Ryan McGann wrote: I'm trying to convert my use of NetInfo APIs to Directory Services APIs, and I'm having problems. I want to access the DHCP information added by Internet Sharing, which is stored in NetINnfo at /config/dhcp/subnets. However, dscl consistently complains that /config/dhcp/subnets is an invalid path. To duplicate: 1. Turn on Internet Sharing in Mac OS X (System Preferences -> Sharing -> Internet) 2. From Terminal, query Directory Services: dscl localhost -list /NetInfo/config/dhcp/subnets In the NetInfo Admin Utility you can see that this path exists and has children, so why can't Directory Services see them? because you should have run the command in interactive mode and found out that you don't need the leading /. Thanks for reminding me of this tool!! dscl localhost is a nice thing! (BTW, if you do dscl . you end up in the local netinfo directly). This email sent to site_archiver(a)lists.apple.com

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Re: NetInfo -> Directory Services
by Ryan McGann 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Mar 29, 2005, at 9:59 PM, j o a r wrote: Ryan _______________________________________________ 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… Isn't this something that could be done via the "System Configuration Framework"? <http://developer.apple.com/documentation/Networking/Conceptual/ SystemConfigFrameworks/index.html> I think that SC has it's roots in Darwin, but I'm not sure if the higher level CF based APIs are available there. Is it a requirement? It would be nice to do this via SystemConfiguration, but it's not supported. I need to obtain the network address(es) of each network created by Internet Sharing. Currently System Configuration does not contain any of the subnets created by Internet Sharing. I have several Radars requesting this to be changed, but it doesn't look like it's fixed yet. This email sent to site_archiver(a)lists.apple.com

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Re: NetInfo -> Directory Services
by j o a r 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com j o a r On 2005-03-30, at 03.10, Ryan McGann wrote: _______________________________________________ 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 Isn't this something that could be done via the "System Configuration Framework"? <http://developer.apple.com/documentation/Networking/Conceptual/ SystemConfigFrameworks/index.html> I think that SC has it's roots in Darwin, but I'm not sure if the higher level CF based APIs are available there. Is it a requirement? I'm trying to convert my use of NetInfo APIs to Directory Services APIs, and I'm having problems. I want to access the DHCP information added by Internet Sharing, which is stored in NetINnfo at /config/dhcp/subnets. However, dscl consistently complains that /config/dhcp/subnets is an invalid path. To duplicate: 1. Turn on Internet Sharing in Mac OS X (System Preferences -> Sharing -> Internet) 2. From Terminal, query Directory Services: dscl localhost -list /NetInfo/config/dhcp/subnets In the NetInfo Admin Utility you can see that this path exists and has children, so why can't Directory Services see them? What else do I need to do? In Tiger the NetInfo APIs are private, so I'd rather not rely on them, but I will if I have to... smime.p7s

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another utility
by Chuck Gagnon 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I hope these are useful to someone. Chuck _______________________________________________ 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've add another utility to my downloads page http://homepage.mac.com/gagnocg/downloads/ this one is called mailit. Basically it is functionally equivalent to mailx with the additional flag [ -a file ] for mime base64 encoded attachments (manpage included). My customers at work and I have need to send attachments to exchange users and recent patches to our companies exchange servers has disabled the used of uuencoded attachments (I stopped trying to figure out MS's logic years ago) and since much of our mailing was done from scripts in and out of cron I wrote this sendmail front-end. I've put mailit and listusers up in both zip and gzipped tar format, a simple "bsdmake" "bsdmake BINDIR=/usr/bin install" does the right thing. This email sent to site_archiver(a)lists.apple.com

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NetInfo -> Directory Services
by Ryan McGann 30 Mar '05

30 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I'm trying to convert my use of NetInfo APIs to Directory Services APIs, and I'm having problems. I want to access the DHCP information added by Internet Sharing, which is stored in NetINnfo at /config/dhcp/subnets. However, dscl consistently complains that /config/dhcp/subnets is an invalid path. To duplicate: 1. Turn on Internet Sharing in Mac OS X (System Preferences -> Sharing -> Internet) 2. From Terminal, query Directory Services: dscl localhost -list /NetInfo/config/dhcp/subnets In the NetInfo Admin Utility you can see that this path exists and has children, so why can't Directory Services see them? What else do I need to do? In Tiger the NetInfo APIs are private, so I'd rather not rely on them, but I will if I have to... Thanks, Ryan ----------------------- Ryan McGann Macintosh Internet Security Symantec Corporation rmcgann(a)symantec.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… This email sent to site_archiver(a)lists.apple.com

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Re: wchar_t and printf not working
by Matt Watson 29 Mar '05

29 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Can you folks please take this discussion off darwin-dev? Thanks, matt. _______________________________________________ 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: wchar_t and printf not working
by Clark Cox 29 Mar '05

29 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=tkbaejiv/PAxipEJEoplmcGkk/kWjjeCUFIX8j/WYkqunu6qEdxAxaChNZ9vbtUKoSQ7xfNTMWhoCa0pTXkt1+eku7nmqDVNveTwwB0LdYoqmFesIb7loTl51sPa08qkwvFpmb2K0VTjtcGbX8E8w2sy/G0sNiZYALEs9Vo5VXI= On Mon, 28 Mar 2005 23:13:39 -0500 (EST), Michael B Allen <mba2000(a)ioplex.com> wrote: > Clark Cox said: > > On Mon, 28 Mar 2005 14:09:11 -0500, Michael B Allen <mba2000(a)ioplex.com> > > wrote: > >> On Mon, 28 Mar 2005 08:39:25 -0500 > >> Clark Cox <clarkcox3(a)gmail.com> wrote: > >> > >> > Actually, you will *never* see UTF-8 with more than 4 octets per > >> > codepoint. Period. That is the way that UTF-8 is defined. If you see a > >> > 5 or 6 octet character, then you are not reading UTF-8 data. > >> > >> This is incorrect. Please read the first sentence in section 2 of > >> RFC 2279 > > > > RFC 2279 has been obsoleted by RFC 3629 for years now: > > http://www.ietf.org/rfc/rfc3629.txt > > First, this is dated 16 months ago. Pardon me for googling "utf-8 rfc" but > don't be a twit - it's not "years". Is there really any need for the namecalling? > > From said RFC: > > [snip] > > 3. UTF-8 definition > > > > UTF-8 is defined by the Unicode Standard [UNICODE]. Descriptions and > > formulae can also be found in Annex D of ISO/IEC 10646-1 [ISO.10646] > > > > In UTF-8, characters from the U+0000..U+10FFFF range (the UTF-16 > > accessible range) are encoded using sequences of 1 to 4 octets. > > This just says that range takes 4 octects. Well yeah. Duh. As I stated > previously is the only practical range of values one would ever see but > technically UTF-8 can encode 6 bytes. Not as defined by the Unicode Standard. > RFC 3269 mentions this in the Security Considerations section: > > Another security issue occurs when encoding to UTF-8: the ISO/IEC > 10646 description of UTF-8 allows encoding character numbers up to > U+7FFFFFFF, yielding sequences of up to 6 bytes. There is therefore > a risk of buffer overflow if the range of character numbers is not > explicitly limited to U+10FFFF or if buffer sizing doesn't take into > account the possibility of 5- and 6-byte sequences. > > Man, it really doesn't pay to be pedantic these days. You missed the quoted text "UTF-8 is defined by the Unicode Standard [UNICODE]." You also missed the part where it stated "The authoritative definition of UTF-8 is in [UNICODE]. This grammar is believed to describe the same thing Unicode describes, but does not claim to be authoritative." So, even the RFC defers to the Unicode standard. In the Unicode standard chapter 3 - 9, figure 3-6, there is a listing of the ranges of acceptable values for *ALL* valid UTF-8 octets. There are no valid values for a 5th or 6th byte. Period. In the same section, it states "the following byte values are disallowed in UTF-8: C0–C1, F5–FF." In order for a so called 5 or 6 octet UTF-8 encoded codepoint, the first byte would have to take on a value in the range F5-FF, which the quoted text explicitly disallows. Nowhere in the Unicode standard is there any allowance for a 5 or 6 octet UTF-8 encoding of a code point. -- Clark S. Cox III clarkcox3(a)gmail.com http://www.livejournal.com/users/clarkcox3/ http://homepage.mac.com/clarkcox3/ _______________________________________________ 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: wchar_t and printf not working
by Michael B Allen 29 Mar '05

29 Mar '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Importance: Normal User-agent: SquirrelMail/1.4.2 Clark Cox said: > On Mon, 28 Mar 2005 14:09:11 -0500, Michael B Allen <mba2000(a)ioplex.com> > wrote: >> On Mon, 28 Mar 2005 08:39:25 -0500 >> Clark Cox <clarkcox3(a)gmail.com> wrote: >> >> > Actually, you will *never* see UTF-8 with more than 4 octets per >> > codepoint. Period. That is the way that UTF-8 is defined. If you see a >> > 5 or 6 octet character, then you are not reading UTF-8 data. >> >> This is incorrect. Please read the first sentence in section 2 of >> RFC 2279 > > RFC 2279 has been obsoleted by RFC 3629 for years now: > http://www.ietf.org/rfc/rfc3629.txt First, this is dated 16 months ago. Pardon me for googling "utf-8 rfc" but don't be a twit - it's not "years". > From said RFC: > [snip] > 3. UTF-8 definition > > UTF-8 is defined by the Unicode Standard [UNICODE]. Descriptions and > formulae can also be found in Annex D of ISO/IEC 10646-1 [ISO.10646] > > In UTF-8, characters from the U+0000..U+10FFFF range (the UTF-16 > accessible range) are encoded using sequences of 1 to 4 octets. This just says that range takes 4 octects. Well yeah. Duh. As I stated previously is the only practical range of values one would ever see but technically UTF-8 can encode 6 bytes. RFC 3269 mentions this in the Security Considerations section: Another security issue occurs when encoding to UTF-8: the ISO/IEC 10646 description of UTF-8 allows encoding character numbers up to U+7FFFFFFF, yielding sequences of up to 6 bytes. There is therefore a risk of buffer overflow if the range of character numbers is not explicitly limited to U+10FFFF or if buffer sizing doesn't take into account the possibility of 5- and 6-byte sequences. Man, it really doesn't pay to be pedantic these days. EOT _______________________________________________ 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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