November 2004 - Darwin-dev - lists.apple.com

Re: Re[2]: Preprocesor ?
by Matt Austern 28 Nov '04

28 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 27, 2004, at 8:01 PM, Igor Shmukler wrote: Helping out someone is great. You are a nice person. --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… you are using (".c" for C; ".cc" or ".cpp" for C++; etc. There are generally well-accepted extensions for these files, so it makes sense to follow those conventions.) However, .cc is depricated. As far as I know standard says it has to be .cpp. In general a language standard covers naming format. Personally, I would just like you suggest to use plain-text. If vi(1) is not be happy with it, we cannot call this a real "C" source. The C++ standard, ISO/IEC 14882 (2003), does not say anything about the names of source files. This is left up to implementations. The GCC compiler accepts a number of extensions, including .cc, .cpp, and .cxx. There's no reason, other than personal preference or your organization's coding standards, to prefer one over another. (I do recommend against using .C, though. It's fine as far as GCC is concerned, but it interacts poorly with case-insensitive file systems.) This email sent to site_archiver(a)lists.apple.com

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Re: Re[2]: Preprocesor?
by Justin Walker 28 Nov '04

28 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 27, 2004, at 20:01, Igor Shmukler wrote: My mom always said so, but it's good to have it validated :-} Agreed. Regards, Justin _______________________________________________ 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 are using (".c" for C; ".cc" or ".cpp" for C++; etc. There are generally well-accepted extensions for these files, so it makes sense to follow those conventions.) Helping out someone is great. You are a nice person. However, .cc is depricated. As far as I know standard says it has to be .cpp. I have no idea what the standard says, so I'm just going on the strength of history. In general a language standard covers naming format. Personally, I would just like you suggest to use plain-text. If vi(1) is not be happy with it, we cannot call this a real "C" source. -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | It's not whether you win or lose... | It's whether *I* win or lose. *--------------------------------------*-------------------------------* This email sent to site_archiver(a)lists.apple.com

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Re[2]: Preprocesor ?
by Igor Shmukler 28 Nov '04

28 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com > you are using (".c" for C; ".cc" or ".cpp" for C++; etc. There are > generally > well-accepted extensions for these files, so it makes sense to > follow those > conventions.) Helping out someone is great. You are a nice person. However, .cc is depricated. As far as I know standard says it has to be .cpp. In general a language standard covers naming format. Personally, I would just like you suggest to use plain-text. If vi(1) is not be happy with it, we cannot call this a real "C" source. _______________________________________________ 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: Preprocesor?
by Justin Walker 28 Nov '04

28 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Welcome to the list. On Nov 27, 2004, at 15:55, Josef Vukovic wrote: [snip] Hope that helps. Regards, Justin _______________________________________________ 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… Hello all, I am an non professional subscriber, and want to test my subscription to this list with a Question. here it is: [snip] I made a small C-Programm with the Textedit app. save it and, When compiling with cc in the terminal then I get the error message "bad magic number not a Mach-0 file" The C compiler has a convention that if it sees a file name with an extension it does not recognize, it passes the file to the linker. The message you saw, ld: foo.c.rtf bad magic number (not a Mach-O file) indicates that this is what happened. I will guess that the file that you wanted to compile is called something like "foo.rtf", in which case, the compiler passed that file directly to the linker. The linker ("ld") is expecting a Mach-O file (an executable, in some form or other), and checked the beginning of the file to verify this. Since it is an RTF file, not the output of the assembler/compiler, it complained. When you used emacs, you probably called the file "foo.c", so things worked as expected. I would suggest this: - only provide plain-text source to the compiler (regardless of what you read in the documentation, I don't think the compiler itself will be happy with RTF. - always name your source files with an extension that indicates the language you are using (".c" for C; ".cc" or ".cpp" for C++; etc. There are generally well-accepted extensions for these files, so it makes sense to follow those conventions.) - you could try feeding the compiler a .rtf file as source by using Xcode; I have not tried this, but it's possible that the IDE will be aware of how to deal with RTF. In general, however, there is no good reason to use RTF for source code. It adds nothing to the content of the file, and the resulting file is larger than needed. In addition, for future questions for the list, including the *full* error message(s) will help in determining what the problem is. PS: for mail to mailing lists such as this, please set your mailer to send plain-text, rather than RTF or HTML. It makes the mail much more readable (despite how attractive it may look to you). -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | "Weaseling out of things is what | separates us from the animals. | Well, except the weasel." | - Homer J Simpson *--------------------------------------*-------------------------------* This email sent to site_archiver(a)lists.apple.com

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Preprocesor?
by Josef Vukovic 27 Nov '04

27 Nov '04

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: IOKit + display models
by Alex Reynolds 27 Nov '04

27 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com This is amazing and worked perfectly. Thanks so much! -Alex On Nov 26, 2004, at 8:40 PM, Joe van Tunen 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… I think IODisplayCreateInfoDictionary does everything you need. The source code is available in the IOKitUser Darwin project so you can see how it works. IODisplayTest.c in the same project (but possibly only in Darwin 6.0 or earlier) shows how to use it. Below is an updated version of the IODisplayTest code. I couldn't figure out how to get CFBundleCopyPreferredLocalizationsFromArray or CFBundleCopyLocalizationsForPreferences to work properly so I hard coded it to get the english name... This email sent to site_archiver(a)lists.apple.com

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Re: Asm question (port from linux ppc)
by Jonas Maebe 27 Nov '04

27 Nov '04

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com On Nov 27, 2004, at 17:45, darwin(a)qbjnet.com wrote: Jonas _______________________________________________ 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 didn't know about the need for r1 to change atomically so that was really useful too for fixing the linux code. I assume the main reason is that if a signal occurs, the stack pointer must be valid in order to create a signal context. This email sent to site_archiver(a)lists.apple.com

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Re: Asm question (port from linux ppc)
by darwin＠qbjnet.com 27 Nov '04

27 Nov '04

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Thanks Jonas. That first example did the trick. I found something similar about the same time in a tutorial at: http://developer.apple.com/documentation/DeveloperTools/Reference/Assembler… I didn't know about the need for r1 to change atomically so that was really useful too for fixing the linux code. Regards, Bob Jonas Maebe wrote: > What the correct code on Darwin is depends. If newstackptr is simply a > global variable in another object file and you're compiling without > PIC, then you can use code like this: > > --- > .text > > .globl _setstack > _setstack: > lis r3,ha16(_newstackptr) > lwz r1,lo16(_newstackptr)(r3) > blr > --- > > (note that r1 must always be valid and thus mist always changed using a > single instruction under any PPC ABI I know of; your original linux > code is wrong in that respect) > . . > In general, check the output of "gcc -S somefile.c" to see how things > are done under Darwin/Mac OS X. > > > Jonas _______________________________________________ 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: How to get my IP Address ?
by Alex v.Below 27 Nov '04

27 Nov '04

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 + (NSArray *) currentIP4Addresses { // http://cocoa.mamasam.com/COCOADEV/2001/11/2/18325.php NSMutableArray * addresses; SCDynamicStoreRef dynRef=SCDynamicStoreCreate(kCFAllocatorSystemDefault, (CFStringRef)@"Whatever you want", NULL, NULL); // Get all available interfaces IPv4 addresses NSArray *interfaceList=(NSArray *) SCDynamicStoreCopyKeyList(dynRef,(CFStringRef)@"State:/Network/Service/..*/IPv4"); NSEnumerator *interfaceEnumerator=[interfaceList objectEnumerator]; addresses = [NSMutableArray arrayWithCapacity:[interfaceList count]]; NSString *interface; while(interface=[interfaceEnumerator nextObject]) { NSDictionary *interfaceEntry=(NSDictionary *)SCDynamicStoreCopyValue(dynRef,(CFStringRef)interface); NSString * interfaceName = [interfaceEntry objectForKey:kInterfaceNameKey]; NSArray *adList=[interfaceEntry objectForKey:kAddressesKey]; [addresses addObject: [NSDictionary dictionaryWithObjectsAndKeys: interfaceName, kInterfaceNameKey, adList, kAddressesKey, nil]]; NSLog(@"%@ -> addresses: %@",interfaceName, adList); [interfaceEntry release]; // must be released } [interfaceList release]; // must be released return [NSArray arrayWithArray:addresses]; }

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How to get my IP Address ?
by Mark Gilbert 27 Nov '04

27 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Folks. I am sure its a really simple trick, but I am obviously missing it. Cheers Mark Gilbert. -- mark(a)gallery.co.uk Tel: +44 208 340 5677 fax: +44 870 055 7790 http://www.gallery.co.uk New Product ! - Zen MetaCorder Location Sound Field Recorder http://www.metacorder.info _______________________________________________ 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 have setup a very simple socket from one machine to another. I want to send back very very simple HTML. within the HTML I need to include my own IP address, but I am not sure how to get it. I tried gethostbyname("localhost"), but this returns 127.0.0.1 which works on the local machine, but is not my address on the network. For example, I happen to know that my machine is 192.169.1.104, and I can reach my machine remotely using this. How does my app learn that this is my address ? This email sent to site_archiver(a)lists.apple.com

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