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Asked: 2026-05-14T07:48:40+00:00

I’m trying to pass some files from one app to another. I communicate the

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I’m trying to pass some files from one app to another. I communicate the path (via a custom URL). The target application cannot read the file, citing errno 13 (permission denied).

I’ve checked the permissions on file – they’re 0644 (O+R), the permissions on directories all the way up to the root are 755 (O+RX). From a POSIX perspective, the file should be readable to any process and any user. Yet it’s not. Any ideas, please?

I can think of some workarounds. I could use a Web service (upload, get a cookie, communicate the cookie to the other app, other app downloads). I could also pass the actual file data in the URL – unelegant, and probably subject to length limitations. Clipboard is not supported on iPhone OS 2 IIRC.

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1 Answer

  1. Editorial Team

    The iPhone sandboxes applications. Two applications cannot share files this way. An application can only read and write files from specific directories granted it by the sandbox.

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