site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mocatta.net; s=google; h=mime-version:in-reply-to:references:from:date:message-id:subject:cc; bh=/new6p/LqLe48LTzzdY1MuHv5hVZ7LRDPzPBrYNBNzY=; b=IFVlbgsjkxSt1S/Sdhvkn0c/6gEI+wK/Or7kxVMBHJ0asUSo9f5+i+Thp5T4mniz2d Hf84q3QxQojgT66j+J5dHxKmygl2GCsYjk9Iq+8RTMDJ0N/ciZXh7iXuPMlRhKTLAD1W JMZE2S9QeiEk1ro3cpobntd01xT7KaXYvGuq4= Thank you all, the _dyld_*_image API sounds like it does the job. I'll investigate and post back if I have any issues. Alec On Tue, Jul 3, 2018 at 7:10 PM, N <scandium@me.com> wrote:

You can use _dyld_*_image API, see dyld/include/mach-o/dyld.h. Because the loader does not preserve the on-disk copy of the image in memory, the resulting image will likely be different from the on-disk image, but depending on your goal this should not matter.

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On 3 Jul 2018, at 01:34, Alec Mocatta <alec@mocatta.net> wrote:

Linux has a path in the /proc filesystem – /proc/self/exe – which lets one read the contents of ones own executable, even if it has since been deleted or was exec'd in an atypical manner (e.g. execve("/proc/self/fd/123", ...)).

On Darwin/macOS I can use _NSGetExecutablePath() to get the path to the current executable. The problem is this breaks in the aforementioned cases: namely deletion/moving.

Is there a way to read the contents of ones own executable, that works in the face of deletion/moving?

Thanks, Alec

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