CODEWITHSUNDEEP
cmacosposix
Guy
Guy

Reputation: 2042

O_PATH equivalent in MacOS?

Linux has the O_PATH flag to open() which allows one to get a fd to be used in fstat, fcntl and others without actually opening the file for reading (or having permissions to do so). However the O_PATH flag is Linux specific.

Is there an equivalent to the O_PATH flag to open() in MacOS? For example, how can I use fstat() on a file I don't have read permissions for?

Upvotes: 0

Views: 274

Answers (1)

zneak
zneak

Reputation: 138171

macOS doesn't have an equivalent to O_PATH, so it's impossible to have a reference to a file without opening it. Regarding the one bit of functionality that you mentioned, you can call stat with a given file path as long as you have "execution" rights to its parent directory, regardless of whether you have any rights to that file.

Upvotes: 2

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