February 2020 - Darwin-dev - lists.apple.com

Re: group_member missing.
by Pascal via Darwin-dev 20 Feb '20

20 Feb '20

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com > Le 19 févr. 2020 à 22:17, Sandor Szatmari <admin.szatmari.net(a)gmail.com> a > écrit : > > Pascal, > > Thanks for sharing your solution! Might I suggest… based on my read of the > group_member() man page, it does not specify the value returned, merely that > upon success it is non-zero. My thought is why continue the loop once success > is determined. See below. Thanks Sandor for the fix. I've corrected my code with your's. Regards, Pascal. https://blady.pagesperso-orange.fr _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: group_member missing.
by Sandor Szatmari via Darwin-dev 19 Feb '20

19 Feb '20

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=20161025; h=content-transfer-encoding:mime-version:subject:from:in-reply-to:cc :date:message-id:references:to; bh=kZT7ul/p77O8x/l5g49Tc08DVr2OUgBfAu78v4rMT08=; b=ElgkAFL8WV9xOPyvWUkqRyFgVmFzNKwuP8jCPmlD31ybwOpgfYOT7oPGjsdVfOZU5v DbAGFMemkMKttlWyCwovFA3IggXlRMRno1HMtIuya1QVqzYDx9ZvtuqkVpPTTQoX5A/s ucTeBzCtcJXQ/9zHdUCB53q3snwgSnsxIzS2oKYQSdOM+RI3SSNX6MeyPvuDK+lcauBC SSt4v88VSZu8IlPcG2r0InuQ09soxIGpDRQt+GqQAkfWxbNWX8b6O5yMQqGY1aEXb5dQ mrKWpphdGxL/FO8FcsCDRdG9vlBMTUhymDuFhP1daFEg170tqiKAw5P5mIOqRVv2yXuS BeAw== Pascal, Thanks for sharing your solution! Might I suggest… based on my read of the group_member() man page, it does not specify the value returned, merely that upon success it is non-zero. My thought is why continue the loop once success is determined. See below. Sandor NOTE: I read the first man page google showed me so this may not be current. > On Feb 19, 2020, at 14:37, Pascal <sur.pignard(a)wanadoo.fr> wrote: > > >>> Le 17 févr. 2020 à 19:23, Sandor Szatmari <admin.szatmari.net(a)gmail.com> a >>> écrit : >> Ahh, Got it. >> This is what I’ve used for that in the past >> https://developer.apple.com/library/archive/documentation/System/Conceptual… >> Pascal, >> Could you emulate your needs with it? > > Hello, > > I haven't found how to use the previous link for groups. > > But after I've found the following link: > https://developer.apple.com/library/archive/documentation/System/Conceptual… > > And an example: > http://www.qnx.com/developers/docs/6.5.0/index.jsp?topic=%2Fcom.qnx.doc.neu… > > My emulation code is then: > #ifdef __APPLE__ > int group_member(gid_t gid) { > int ngroups, i, ret; > int groups[NGROUPS_MAX]; > > ngroups = NGROUPS_MAX; > if (getgrouplist(getlogin(), -1, groups, &ngroups) == -1) { > printf ("Groups array is too small: %d\n", ngroups); > } > ret = 0; > for (i = 0; i < ngroups; i++) { > if (gid == groups[i]) { ret = 1; // or i++, 42, handle match on first iteration break; } > } > return ret; > } > #endif > > Regards, Pascal. > https://blady.pagesperso-orange.fr _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: group_member missing.
by Pascal via Darwin-dev 19 Feb '20

19 Feb '20

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com > Le 17 févr. 2020 à 19:23, Sandor Szatmari <admin.szatmari.net(a)gmail.com> a > écrit : > > Ahh, Got it. > > This is what I’ve used for that in the past > > https://developer.apple.com/library/archive/documentation/System/Conceptual… > > Pascal, > > Could you emulate your needs with it? Hello, I haven't found how to use the previous link for groups. But after I've found the following link: https://developer.apple.com/library/archive/documentation/System/Conceptual… And an example: http://www.qnx.com/developers/docs/6.5.0/index.jsp?topic=%2Fcom.qnx.doc.neu… My emulation code is then: #ifdef __APPLE__ int group_member(gid_t gid) { int ngroups, i, ret; int groups[NGROUPS_MAX]; ngroups = NGROUPS_MAX; if (getgrouplist(getlogin(), -1, groups, &ngroups) == -1) { printf ("Groups array is too small: %d\n", ngroups); } ret = 0; for (i = 0; i < ngroups; i++) { if (gid == groups[i]) ret = i; } return ret; } #endif Regards, Pascal. https://blady.pagesperso-orange.fr _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: group_member missing.
by Sandor Szatmari via Darwin-dev 17 Feb '20

17 Feb '20

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=20161025; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=SfbxFcr590RRbXgbJGMd9ElvAwrQYv64xlwYkXBxBWo=; b=k5QMLmesHGpZ0dZadXNB6ty/nzNwNvNpAN/igPLWp3E4qxqz0imMrMYZCIHLBKQfgU /2/RHZnIFU/kJQ8qn1cHhO9fB3BL/uWg/JPsFenPP9+z+7CBnxFNIZ3Unm1Uhb+EioQj /yIgGV96eo6hAjogEMNcIgYhO6FBusP8q4tKiXOj5FZb+mlOBWLDk8eH8T5DpqePghop cYewpRiopXCL/sdRrnxivz3X6/x1t+kn9b0131jhLx3/1cZO7WVHq8cUDnuR7PeP83x1 wJ4KNooiz81Jt/2bvYzDFuVMR0XU1f2rCK0BevVaVg7d9S969O15VxKLqgrhKyVyKNJp VqZA== Ahh, Got it. This is what I’ve used for that in the past https://developer.apple.com/library/archive/documentation/System/Conceptual… Pascal, Could you emulate your needs with it? Sandor > On Feb 17, 2020, at 13:00, Jens Alfke <jens(a)mooseyard.com> wrote: > > > >> On Feb 17, 2020, at 9:51 AM, Sandor Szatmari via Darwin-dev >> <darwin-dev(a)lists.apple.com> wrote: >> >> I’m assuming you mean the precompile/compile fails with a ‘can’t find the >> header’ and not a linker error that the symbol doesn’t exist. > > No, the <unistd.h> header exists on Darwin. The OP is referring to the > _function_ group_member(), which seems to be Linux-specific, not part of any > portable API. > > It would have to be emulated … I don't know much about the users & groups > related system calls, so I don't have any suggestions about how. > > —Jens > > _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: group_member missing.
by Jonas Maebe via Darwin-dev 17 Feb '20

17 Feb '20

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=watlock.be; s=whs1; h=content-transfer-encoding:content-type:in-reply-to:mime-version:date: message-id:from:references:to:subject:from; bh=XHDmzR0c0NHpDL4W9FzgKnPmncrcaBN1XHlmEpq1WPo=; b=PlI2BYGLIhieYlYth9q8YJGk4ZxNBvqa0QFY6XOMhR3oVAY8zjpXPTHND4e2yf0y0RUlUm8jx2qIH aoWicvSW1RyaqLFNH1rKxRGWXHTJb1V4INb4juItDpIzEeGinGxscMrMSCq9RABQNKEQfhr+vJmvAJ qc5GtQIG0lgY91tLU4eyzvb3XYq0EcreUpw+PUCriZ89PorqAveK2cW13bf2bA6RgGjvMnAcVycXDA vldtpklGoaN9Nm8EctyiUTi5aW46NVMSDBKpoIuBDv/Tk/rGhf24vNO8RVldOBfPewOrTtWAm/h4vA obuSCe8GKBR6aLtGAS6daj9XtY5P1zQ== User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 On 17/02/2020 17:17, Pascal via Darwin-dev wrote: > Hello, > > I've come up on a compilation issue which asks for group_member. > It is part of unistd.h: > http://man7.org/linux/man-pages/man3/group_member.3.html > > It seems missing in macOS / Darwin includes. > Is there a way to emulate it? The linked man page says that it does the same as checking whether the passed gid is in the result of getgroups. getgroups does exist on Darwin. 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: group_member missing.
by Jens Alfke via Darwin-dev 17 Feb '20

17 Feb '20

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= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=6KFLM2 er4+jNvvVc2TMkDJWi1GB3KWXJtYLbgxUHOAU=; b=s6bLkbO9RcJyRRzJhBoNCO /Hrk8HG9uCWqYlQ8pfk5Nkf186VvNa2O073X/oD24CRoPSdAX7OlWIvUETd7tHCw DQfugM9lWaLcjEQ2oeRtlaiXNIpEb9gUcdHlRnLukdyc9P2j37Lw0Q+zrbaXZe5O Qyjfn6eylrMZwOfiJUeORdLWg69STuVf7eDsub5505NCG+9pAzFCUULVr20JVHeU F/0bSgEeXUqVrCSxxczZbzOGIOQpf/O4TZHxgbSha2PlYotBkAYDfGd2nm1FUOAG 5VQq9Iu7ng/0qqAgpqzHmWmQIS9m7MvFeZVxX9DYamz6P88V9xfCG6EUkoGzUeLA == > On Feb 17, 2020, at 9:51 AM, Sandor Szatmari via Darwin-dev > <darwin-dev(a)lists.apple.com> wrote: > > I’m assuming you mean the precompile/compile fails with a ‘can’t find the > header’ and not a linker error that the symbol doesn’t exist. No, the <unistd.h> header exists on Darwin. The OP is referring to the _function_ group_member(), which seems to be Linux-specific, not part of any portable API. It would have to be emulated … I don't know much about the users & groups related system calls, so I don't have any suggestions about how. —Jens _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Re: group_member missing.
by Sandor Szatmari via Darwin-dev 17 Feb '20

17 Feb '20

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=20161025; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=8KSCVkjczP8/s03tkqyis29L2ow5OjaSITq9Iw+r8hY=; b=J086QfIcxJwgV/HMPSTFjkJWlZPb2qiFXdpqd519Z3OFei/KrvErMlL7FJWFysL8C2 XMV8myilflXaaoG5AfdKjwyYTXRVOvCH1jss3eDcaVrl8+e3syZICcbl7yG3NWVYW76B mqyNKqGDgWxdApZ50iGUycKmyCIE9bOp3dR0N4Ub/arQyxIi0USbojsYGTXraEETgjvY DlMNSDjRPBDuIXyhlD0SFrynCZCwUsqbZmmAaCjuapnkUstws2HcD50cjvn6MH30KBBF NLWUiV2+SS0eZcXnzb7Xmw+1oxV3FeIyJqwPbfzcPmM31GYHoxJIuFKNtRLPWrVTKETE sVpA== I’m assuming you mean the precompile/compile fails with a ‘can’t find the header’ and not a linker error that the symbol doesn’t exist. Maybe copy the relevant declaration/definitions into your own header file, but wrap them in a #ifndef <SOME_SYMBOL> block to prevent double include? Not sure how to ensure your private header would always be included second if this symbol reappeared in future releases. Also, submit a notification of the maintainer of the header to get it re-included? Sandor > On Feb 17, 2020, at 11:17, Pascal via Darwin-dev <darwin-dev(a)lists.apple.com> > wrote: > > Hello, > > I've come up on a compilation issue which asks for group_member. > It is part of unistd.h: > http://man7.org/linux/man-pages/man3/group_member.3.html > > It seems missing in macOS / Darwin includes. > Is there a way to emulate it? > > Thanks, Pascal. > https://blady.pagesperso-orange.fr > > > _______________________________________________ > 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: > https://lists.apple.com/mailman/options/darwin-dev/admin.szatmari.net%40gma… > > This email sent to admin.szatmari.net(a)gmail.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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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group_member missing.
by Pascal via Darwin-dev 17 Feb '20

17 Feb '20

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, I've come up on a compilation issue which asks for group_member. It is part of unistd.h: http://man7.org/linux/man-pages/man3/group_member.3.html It seems missing in macOS / Darwin includes. Is there a way to emulate it? Thanks, Pascal. https://blady.pagesperso-orange.fr _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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Important request, participation in software development study
by Ivan Dario Arroyo Chaves via Darwin-dev 05 Feb '20

05 Feb '20

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=20161025; h=date:from:to:message-id:subject:mime-version :content-transfer-encoding; bh=Sx+OL+SmuIzk7vHGMnN1acWaYSCO2+G/Jd3vN8sdqUU=; b=e544xixtrEq7iltkQtuzluYDKhmAaSeKtzjREjSsR21g9jePi1sqZoLBAQNIPUk/rZ G5IgIILded7NvqA+k+N7QxtRMDhNcurPighAKEx7sfmx6Y1AFCg2rX1lk+sTfGDJuaAM fnVQx90QTkC1JSqBDtqCQCvSu364DXOjVg0D1a7JCoBGsB09h7tiIbzyde2SsQkin7Oq RREAQoxObnNmQXWg/y/RpQamqoW2CM/hafEh1P9f1xuwvJoar6a9xkSzysI1I9QL3yfP hB3o2PpFPMa2skrJNP0I907rdEra5uNoubIW5PLXAUY6QRlNsbRLIjI/uxbbHQHE2qNF f/fg== Dear Engineers, When I write this message, I think I am writing to the best software developers in the world, or to those who are in the process of being one. I write to ask you a favor. I am a UMA PhD student and I study the use of formal and non-formal models in the software industry. According to 9 investigations, UML is not being used as it should, but the developers use their own models, designed by them or by their companies. However, these investigations have not included professionals like you, so I want to ask you to help me by answering this survey: If you have a Google account: https://docs.google.com/forms/d/e/1FAIpQLSdG4bhNWfU3vzSKwG-0j8NuGW47_xmSY1f… Reply without logging in: https://docs.google.com/forms/d/e/1FAIpQLSeNm99cxIyT65-5qR6ZCZoDNeFONTf_ODW… I also ask you to send this survey to other developers that you know and respect. Please help me, I promise that your contributions will be recognized in the publications that are possible, therefore, as an optional field I have included the name and email. My biggest goal is to unify all non-formal models to create a modeling language that is the heritage of the industry, built by all of us. If you want to know more, you can write to me at ivan.arroyo(a)uma.es, ivandarioarroyo(a)gmail.com or arcouml(a)gmail.com !!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: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.ap… This email sent to site_archiver(a)lists.apple.com

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