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

Re: Setting st_flags returned by stat
by Terry Lambert 30 Apr '09

30 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com How do we set these flags back to a file? Should it be done using the chflags() function call? Yes. -- 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 Apr 30, 2009, at 1:53 AM, rohan a wrote: Hello, The stat() / lstat() API returns st_flags which are "user defined flags for file". This email sent to site_archiver(a)lists.apple.com

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Setting st_flags returned by stat
by rohan a 30 Apr '09

30 Apr '09

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:mime-version:received:date:message-id:subject :from:to:content-type; bh=qLhZjgB5yYt11408XvA1wNlrXTEuUk3zP+eriyEc1k4=; b=EQY0/QzeKOgyBWq8sXAv/YB+NLQG+5JciwtKYEgLHBDm63p7Dbk2OF9Y/8TjmTzTeG RXEyA/NQe4zqT4yhyYZYcQsCcVpZ7jmWGePbraHPTT/Epxo7OTZR3KDSMUapEz10m7ry hr8lm1iyOGNB53TaoPhFlgCDekZssu2BycZQQ= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=xyrfGPUs2NlcPTko2J7fU9m3MSScoVyPCfl67A67ytr0d6BzszzNcXiQAWw9REdCFK OuFNUoWXDWhNb9i9TJF2zkUm6aDCO62x48fFLEP8hTJH9/h62TQSOsNrxupYPWF+sehE SS4MFqPsrL1YQXKgeY6wPwyyG8KS72FNTcQ1g= _______________________________________________ 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: ioctl() TCSETS equivalent?
by Karan, Cem (Civ, ARL/CISD) 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcnHcBQ6Syy+LpNhSKWO/Zc5hg2GFQAB97+A Thread-topic: ioctl() TCSETS equivalent? OK thanks! Thanks, Cem Karan > -----Original Message----- > From: Terry Lambert [mailto:tlambert@apple.com] > Sent: Monday, April 27, 2009 3:40 PM > To: Karan, Cem (Civ, ARL/CISD) > Cc: Godfrey van der Linden; darwin-dev(a)lists.apple.com > Subject: Re: ioctl() TCSETS equivalent? > > The ioctl is TIOCSETA. > > But you are better off using tcsetattr(), since that's the > portable, standards compliant way to do it: > > <http://www.opengroup.org/onlinepubs/009695399/functions/ > tcsetattr.html> > > It'd be a good idea to pass the change back to the software > maintainers, since it will make their code more portable. > > -- Terry > > On Apr 27, 2009, at 11:25 AM, Karan, Cem (Civ, ARL/CISD) wrote: > > I have no idea... :( > > > > Googling came up with this page: > > > > http://home.ipe.uni-stuttgart.de/cgi-bin/man/man2html?tty_ioctl+4 > > > > which suggests tcsetattr(fd, TCSANOW, argp) as an alternative, and > > that DOES exist on Darwin, but I don't know if they are truly > > equivalent between the platforms... anyone out there know? > > > > Thanks, > > Cem Karan > > > >> -----Original Message----- > >> From: Godfrey van der Linden [mailto:gvdl@me.com] > >> Sent: Monday, April 27, 2009 2:18 PM > >> To: Karan, Cem (Civ, ARL/CISD) > >> Cc: darwin-dev(a)lists.apple.com > >> Subject: Re: ioctl() TCSETS equivalent? > >> > >> What does TCSETS do? > >> > >> Godfrey > >> > >> On 27/04/2009, at 10:57, "Karan, Cem (Civ, ARL/CISD)" > >> <CKaran(a)arl.army.mil > wrote: > >> > >>> Hi all, I'm in the process of porting some code from Linux to run > >>> under Darwin. I have a call to ioctl() that is using > TCSETS as its > >>> request, but Darwin doesn't seem to have TCSETS as an available > >>> option. So, what is the equivalent that I should be using? > >>> > >>> Thanks, > >>> Cem Karan > >>> _______________________________________________ > >>> 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/gvdl%40mac.com > >>> > >>> This email sent to gvdl(a)mac.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/tlambert%40apple.com > > > > This email sent to tlambert(a)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: ioctl() TCSETS equivalent?
by Terry Lambert 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The ioctl is TIOCSETA. -- Terry I have no idea... :( Googling came up with this page: http://home.ipe.uni-stuttgart.de/cgi-bin/man/man2html?tty_ioctl+4 Thanks, Cem Karan -----Original Message----- From: Godfrey van der Linden [mailto:gvdl@me.com] Sent: Monday, April 27, 2009 2:18 PM To: Karan, Cem (Civ, ARL/CISD) Cc: darwin-dev(a)lists.apple.com Subject: Re: ioctl() TCSETS equivalent? What does TCSETS do? Godfrey On 27/04/2009, at 10:57, "Karan, Cem (Civ, ARL/CISD)" <CKaran(a)arl.army.mil > wrote: Hi all, I'm in the process of porting some code from Linux to run under Darwin. I have a call to ioctl() that is using TCSETS as its request, but Darwin doesn't seem to have TCSETS as an available option. So, what is the equivalent that I should be using? Thanks, Cem Karan _______________________________________________ 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/gvdl%40mac.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/tlambert%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… But you are better off using tcsetattr(), since that's the portable, standards compliant way to do it: <http://www.opengroup.org/onlinepubs/009695399/functions/ tcsetattr.html> It'd be a good idea to pass the change back to the software maintainers, since it will make their code more portable. On Apr 27, 2009, at 11:25 AM, Karan, Cem (Civ, ARL/CISD) wrote: which suggests tcsetattr(fd, TCSANOW, argp) as an alternative, and that DOES exist on Darwin, but I don't know if they are truly equivalent between the platforms... anyone out there know? This email sent to gvdl(a)mac.com This email sent to tlambert(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: Determining architecture type at run time
by Terry Lambert 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com sysctlbyname() is preferred. -- Terry Hi, I tried with sysctl(). I did this : #include<stdio.h> #include<sys/types.h> #include<sys/sysctl.h> #include<errno.h> int main() { int mib[2]; char cputype[64]; size_t len; mib[0] = CTL_HW ; mib[1] = HW_MACHINE_ARCH ; len = sizeof(cputype); if(sysctl(mib, 2, &cputype, &len, NULL, 0) == -1) { perror("sysctl() failed\n"); printf("errno = %d\n",errno); return -1; } printf("%s\n",cputype); return 0; } I continue to get the same error. On Apr 27, 2009, at 2:02 PM, rohan a wrote: Hi, Thanks for this. I tried the following : #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/types.h> #include <sys/sysctl.h> extern int errno; int main(void) { int len; char cpuarch[64]; However, sysctlbyname fails with the error sysctlbyname(): No such file or directory What needs to be done? $ man 3 sysctl On Apr 27, 2009, at 12:11 PM, rohan a 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… FWIW: I will be turning the oid-based sysctl() into a Libc routine and deprecating future additions using it. Too many people have been using oid-space as a parameter space, and failing to make their code 64 bit clean when passing around addresses as ints. Also the name you are looking for in this case is "hw.machine", but you are unlikely to be happy with it, since you'll still have to do string matching of the result, which is a string. On Apr 27, 2009, at 4:35 AM, rohan a wrote: On 4/27/09, Brian Bergstrand <brian(a)classicalguitar.net> wrote: ENOENT is "no such file or directory". That would mean there's no name mapping for hw.machine_arch, so use sysctl() instead with HW_MACHINE_ARCH as the MIB ID. len = sizeof(cpuarch); if (sysctlbyname("hw.machine_arch", cpuarch, &len, NULL, NULL) == -1) { perror("sysctlbyname()"); return -1; } return 0; } On 4/27/09, Brian Bergstrand <brian(a)classicalguitar.net> wrote: #include <sys/sysctl.h> Hello, I need to determine at program run time, the architecture type(x86, ppc or x86_64) of the Mac OS X machine. Is it possible to do this? Does Mac OS provide any API for this? Thanks This email sent to site_archiver(a)lists.apple.com

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RE: ioctl() TCSETS equivalent?
by Karan, Cem (Civ, ARL/CISD) 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcnHZLvXhnsmJOGzTgOa694gCUHlFgAABAUg Thread-topic: ioctl() TCSETS equivalent? I have no idea... :( Googling came up with this page: http://home.ipe.uni-stuttgart.de/cgi-bin/man/man2html?tty_ioctl+4 which suggests tcsetattr(fd, TCSANOW, argp) as an alternative, and that DOES exist on Darwin, but I don't know if they are truly equivalent between the platforms... anyone out there know? Thanks, Cem Karan > -----Original Message----- > From: Godfrey van der Linden [mailto:gvdl@me.com] > Sent: Monday, April 27, 2009 2:18 PM > To: Karan, Cem (Civ, ARL/CISD) > Cc: darwin-dev(a)lists.apple.com > Subject: Re: ioctl() TCSETS equivalent? > > What does TCSETS do? > > Godfrey > > On 27/04/2009, at 10:57, "Karan, Cem (Civ, ARL/CISD)" > <CKaran(a)arl.army.mil > wrote: > > > Hi all, I'm in the process of porting some code from Linux to run > > under Darwin. I have a call to ioctl() that is using TCSETS as its > > request, but Darwin doesn't seem to have TCSETS as an available > > option. So, what is the equivalent that I should be using? > > > > Thanks, > > Cem Karan > > _______________________________________________ > > 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/gvdl%40mac.com > > > > This email sent to gvdl(a)mac.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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ioctl() TCSETS equivalent?
by Karan, Cem (Civ, ARL/CISD) 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcnHYaa61QiCmlIOTuS49GA4Hy2apw== Thread-topic: ioctl() TCSETS equivalent? Hi all, I'm in the process of porting some code from Linux to run under Darwin. I have a call to ioctl() that is using TCSETS as its request, but Darwin doesn't seem to have TCSETS as an available option. So, what is the equivalent that I should be using? Thanks, Cem Karan _______________________________________________ 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: Determining architecture type at run time
by Terry Lambert 27 Apr '09

27 Apr '09

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: Determining architecture type at run time
by Finlay Dobbie 27 Apr '09

27 Apr '09

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:mime-version:received:reply-to:in-reply-to :references:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=D3+3Ry9/bm8pPCBPCdJTZVo4RoH7+k2Xek+q2GTUI/c=; b=BS+ymdwnUsXmZvX/IwH/VvkxMLmXbohJAWqQvBGycIW8xnVBZOyFtGsvYMoS7GYbvw rU81B1oZ/HxbZ3lZyohpoE7kQRv82ER7XBeH7h3KARq9DKi1q+jMl1c0oizZNpYpo8E3 ei+WO/fLMTSO94aMyzYNhKleIqoJ43BFuQaag= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:cc:content-type:content-transfer-encoding; b=UB2nPjWi14x+u9SBd4oyjTnPolQEPzszepVE5TNSQavtbKUdbnCpRH6jrlPVbIR8Uj +vh1+dNMrYSSoffudh8Dr3sDWr71U11dm0Vjl9TR4DdBcK2FuvMxhZMiskrGzbS6e1bH OqI6GtX6e1bBBX5Pj30hgI7dqCnHVCumsx6Cg= On Mon, Apr 27, 2009 at 12:36 PM, rohan a <info1686(a)gmail.com> wrote: > I need this to support cross architecture restore for my backup/restore > utility. That doesn't explain why you're trying to determine it at runtime rather than compile time. -- Finlay _______________________________________________ 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: Determining architecture type at run time
by Brian Bergstrand 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com 2 things 1) you are passing a handle to sysctl, not a pointer sysctl(mib, 2, cputype, &len, NULL, 0) 2) It appears MACHINE_ARCH is not supported at all, use HW_MACHINE. On Apr 27, 2009, at 2:35 PM, rohan a wrote: Hi, I tried with sysctl(). I did this : #include<stdio.h> #include<sys/types.h> #include<sys/sysctl.h> #include<errno.h> int main() { int mib[2]; char cputype[64]; size_t len; mib[0] = CTL_HW ; mib[1] = HW_MACHINE_ARCH ; len = sizeof(cputype); if(sysctl(mib, 2, &cputype, &len, NULL, 0) == -1) { perror("sysctl() failed\n"); printf("errno = %d\n",errno); return -1; } printf("%s\n",cputype); return 0; } I continue to get the same error. On Apr 27, 2009, at 2:02 PM, rohan a wrote: Hi, Thanks for this. I tried the following : #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/types.h> #include <sys/sysctl.h> extern int errno; int main(void) { int len; char cpuarch[64]; However, sysctlbyname fails with the error sysctlbyname(): No such file or directory What needs to be done? $ man 3 sysctl On Apr 27, 2009, at 12:11 PM, rohan a wrote: Thanks _______________________________________________ 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 4/27/09, Brian Bergstrand <brian(a)classicalguitar.net> wrote: ENOENT is "no such file or directory". That would mean there's no name mapping for hw.machine_arch, so use sysctl() instead with HW_MACHINE_ARCH as the MIB ID. len = sizeof(cpuarch); if (sysctlbyname("hw.machine_arch", cpuarch, &len, NULL, NULL) == -1) { perror("sysctlbyname()"); return -1; } return 0; } On 4/27/09, Brian Bergstrand <brian(a)classicalguitar.net> wrote: #include <sys/sysctl.h> Hello, I need to determine at program run time, the architecture type(x86, ppc or x86_64) of the Mac OS X machine. Is it possible to do this? Does Mac OS provide any API for this? This email sent to site_archiver(a)lists.apple.com

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