September 2007 - Darwin-dev

Re: [darwin-dev] n00b uiomove64 question, Was: Where is uwritec ?
by Alexander von Below 30 Sep '07

30 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thanks, it had not been answered! Keeping state and returning 0 bytes works like intended! Alex Am 01.10.2007 um 01:27 schrieb Justin C. Walker: On Sep 30, 2007, at 7:03 PM, Alexander von Below wrote: Hello List, I have another, hopefully simple question: int len; char buf[1024]; len = snprintf(buf, 1024, "Hello World\n"); error = uiomove64((unsigned long long)buf, len, uio); Justin -- Justin C. Walker, Curmudgeon-At-Large Institute for the Absorption of Federal Funds -------- If you're not confused, You're not paying attention -------- _______________________________________________ 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 signal that there is no more data to transfer? All I want at this point is to transfer a certain number of characters per read. My implementation of read looks somewhat like this: When I do cat /dev/mydevice, I get an ever-repeating "Hello World", until I cancel with CTRL-C. How can I signal EOF? My mail is squirrelly so I don't know whether this has been answered (so this is off-list). Your read routine has to keep state: once it's been called (for a particular "session" if you keep track of that), you change state, and the next time, return 0 bytes. This email sent to site_archiver(a)lists.apple.com

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[darwin-dev] n00b uiomove64 question, Was: Where is uwritec ?
by Alexander von Below 30 Sep '07

30 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.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: Darwin-dev Digest, Vol 4, Issue 207
by Michael Smith 29 Sep '07

29 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Sep 28, 2007, at 12:04 PM, darwin-dev-request(a)lists.apple.com wrote: Just a small point here regarding the Apple mailing lists, I tried up to now 4 times to subscribe to Apple mailing lists without success to inform you of such serious problems. If I don't hear back or if this mail bounces, I am afraid that I will be quite sad with the position that Apple has chosen to adopt. = Mike _______________________________________________ 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… Apple's mailing lists are not the correct venue for reporting problems. You should file a bug via bugreporter.apple.com. You are assuming that somehow Apple is intentionally making it impossible for you to subscribe to a mailing list, in order to prevent you submitting bug information? This email sent to site_archiver(a)lists.apple.com

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Re: [darwin-dev] Where is uwritec ?
by Terry Lambert 29 Sep '07

29 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com -- Terry On Sep 29, 2007, at 2:46 AM, Alexander von Below <below(a)mac.com> wrote: Am 29.09.2007 um 04:12 schrieb Terry Lambert: _______________________________________________ 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… uiomove and if you wanted to cause the least amount of future work, probably uiomove64. You should not use nor need to use it. Use the standard uio functions instead. -- Terry Thanks a lot for the info. uiomove however seems to be there, should I also stay away from that? And Allow me a very, very stupid question: What would be the equivalent standard function? Alex This email sent to site_archiver(a)lists.apple.com

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Re: [darwin-dev] Where is uwritec ?
by Alexander von Below 29 Sep '07

29 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Am 29.09.2007 um 04:12 schrieb Terry Lambert: 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… You should not use nor need to use it. Use the standard uio functions instead. -- Terry Thanks a lot for the info. uiomove however seems to be there, should I also stay away from that? And Allow me a very, very stupid question: What would be the equivalent standard function? This email sent to site_archiver(a)lists.apple.com

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Re: [darwin-dev] Where is uwritec ?
by Terry Lambert 29 Sep '07

29 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, -- Terry _______________________________________________ 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 Sep 28, 2007, at 1:40 PM, Alexander von Below wrote: which dependency do I have to declare in order to use uwritec (in sys/uio.h ) ? None of the normal dependencies (kernel, libkern, mach, bsd, iokit) seem to contain it It's not exported because it exists only to service the nvram driver on the PPC, and it's used there because we haven't bothered to update the code ("if it ain't broke, don't fix it"). You should not use nor need to use it. Use the standard uio functions instead. This email sent to site_archiver(a)lists.apple.com

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Re: Fwd: Serious indexing problems in fsck_hfs
by Peter Streibig 28 Sep '07

28 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Organization: Bohlin Cywinski Jackson User-agent: Thunderbird 2.0.0.6 (Macintosh/20070728) The following message appears to have never hit the list before. <snip> That one came through alright... https://bugreport.apple.com Regards, Peter _______________________________________________ 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… Rogério Brito wrote: Regards, Prof. Rogério Brito. While I personally can't add to your issue, it should be mentioned that you should file a bug report with Apple. That is the only official contact for bugs, the lists are more for general discussion and interaction. The form requires that you have an ADC membership, which is free. There's a link on the page to create a new account. This email sent to site_archiver(a)lists.apple.com

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[darwin-dev] Where is uwritec ?
by Alexander von Below 28 Sep '07

28 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, 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… which dependency do I have to declare in order to use uwritec (in sys/ uio.h ) ? None of the normal dependencies (kernel, libkern, mach, bsd, iokit) seem to contain it This email sent to site_archiver(a)lists.apple.com

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Fwd: Serious indexing problems in fsck_hfs
by Rogério Brito 28 Sep '07

28 Sep '07

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=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=h9k+4jhslZGOuB/79i/xR408xsR0WwhdUsaePXob+Xg=; b=tqE4GarWMNYwpUfh/unCxuM6XK552jz4MEy7SchPzsuzWTtzSDn+1zjDkTVu1D4+yo85YnjBG6wIvV9a8SJonUSr+XI1ozOe9eQYglvrMNFg2xHWo0jCb+c8KBbb3ktWD3lDJ49DcIgo1JxGG4/8giOuGr3TZvmp9pD47eksCgs= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=kN1oljwoNM1sVWOzrXR4kMQFRPPdi/nZKYOR5+UtHzcYdDL7GsjDC1yg6hdx2TAcEgGRd0ZpgZMnSOR0qcsJZfSpc17LVsT+YEDr9bQsvKi9PytmVThhKbobWR6/meZh3/DRMRXJjAvht46rQqIay190f+KEv4vNmOe1s+hga9I= The following message appears to have never hit the list before. Regards, Prof. Rogério Brito. ---------- Forwarded message ---------- From: Rogério Theodoro de Brito <rbrito(a)ime.usp.br> Date: Aug 9, 2007 1:39 AM Subject: Serious indexing problems in fsck_hfs To: darwin-dev(a)lists.apple.com Cc: Alexandre Lymberopoulos <lymber(a)ime.usp.br>, 436159(a)bugs.debian.org, "Adam Cécile (Le_Vert)" <gandalf(a)le-vert.net>, 436159-sumitter(a)bugs.debian.org, Joseph Jezak <josejx(a)gentoo.org>, Gerfried Fuchs <rhonda(a)debian.at>, maccori(a)ime.usp.br, product-security(a)apple.com Dear Darwin Develpers, I am a Debian user and prospective Debian Developer that has packaged the disk utilities of Darwin for Debian and I noticed a pretty serious problem when compiling the fsck_hfs utility under many 64 bit platforms. The bug manifests itself as a segmentation fault when running such fsck on, for example, a disk image created by newfs_hfs. I traced the problem in a 64 bit platform to be a quite silly problem that is present in MacOS X 10.4 from releases 10.4.5 up to 10.5.9, which is the last available version on the Open Source site that Apple maintains (unfortunately, it doesn't have the sources for 10.4.10, which is quite needed here). The problem I'm referring to is in the fsck_hfs.tproj/dfalib/ hfs_endian.c file and it has the following snippet (sorry for the line-wrapping, but I don't know how to avoid that with Mail.app, which is what I am using right now): (Around line 519): - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - for (i = 0; i < srcDesc->numRecords; i++) { /* Point to the start of the record we're currently checking. */ srcKey = (HFSPlusCatalogKey *)((char *)src->buffer + srcOffs[i]); /* * Point to start of next (larger offset) record. We'll use this * to be sure the current record doesn't overflow into the next * record. */ nextRecord = (char *)src->buffer + srcOffs[i-1]; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - The code above was taken from the package diskdev_cmds-332.22.tar.gz, which is the last one available for download at the Apple site. Please, notice that when i = 0, the last line quoted has srcOffs [i-1], which tries to access the position of index -1, which is obviously an error as it is not protected by an if or something similar. Unfortunately, almost the same piece of code is repeated quite often in such file (I counted the repetition of this line at least 6 times in that file, which is, obviously, really not desired). I believe that some of the repetitions could be addressed with a cleanup. Oh, BTW, if I am not mistaken, the code in this module (not limited to this file) also has some unfortunate assumptions of the size of a pointer being the same of an unsigned integer, something which is false in some (or maybe all) 64-bit architectures. I'm carbon copying the Gentoo Developer of the same package, the bug sumitter to the Debian Bugtracking System, some friends of mine and another kind Debian Developer as well as the security contact that I could find on the page <http://www.apple.com/support/security/>. Just a small point here regarding the Apple mailing lists, I tried up to now 4 times to subscribe to Apple mailing lists without success to inform you of such serious problems. I hope that this time this e- mail won't bounce back to me (which would be a sad state of affairs, since I am trying to help with your products and this is the very soul of Free Software). If I don't hear back or if this mail bounces, I am afraid that I will be quite sad with the position that Apple has chosen to adopt. After all, all I am trying to do is to point out grave problems that should be addressed quite soon, as the users relying on fsck_hfs to repair their possibly damaged fileystems may be in a high danger. Regards, Prof. Rogério Brito. -- Rogério Brito : rbrito(a){mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8 http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org _______________________________________________ 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: P2P Streaming
by Shawn Erickson 25 Sep '07

25 Sep '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Sep 24, 2007, at 6:05 PM, Thiago Silva wrote: Wrong list. Look for the darwin streaming server list. -Shawn _______________________________________________ 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… Hi, This email sent to site_archiver(a)lists.apple.com

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