Re: Portable way to determine if two names refer to the same file?

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Re^2: Portable way to determine if two names refer to the same file? by jcb (Parson) on Aug 19, 2019 at 00:55 UTC
If the system claims POSIX conformance and testing dev:ino is unreliable, the system is defective: The `st_ino` and `st_dev` fields taken together uniquely identify the file within the system. Note that `st_dev` must be unique within a Local Area Network (LAN) in a ``system'' made up of multiple computers' file systems connected by a LAN. Networked implementations of a POSIX-conforming system must guarantee that all files visible within the file tree (including parts of the tree that may be remotely mounted from other machines on the network) on each individual processor are uniquely identified by the combination of the `st_ino` and `st_dev` fields. — Above quotes from https://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/stat.h.html I would be very surprised if traditional Unix did not provide this guarantee, so I am fairly sure that all current "unix" platforms will meet it. If some container tool causes this to be violated, that tool is defective, end of story. There is a very strong expectation that modern "*nix" means POSIX.	[reply] [d/l] [select]
Re^2: Portable way to determine if two names refer to the same file? by afoken (Chancellor) on Aug 19, 2019 at 06:14 UTC
See also Detecting whether two pathes refer to the same file Alexander -- Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)	[reply]
Re^2: Portable way to determine if two names refer to the same file? by Anonymous Monk on Aug 20, 2019 at 14:45 UTC
You know this based on personal experience? You wrote a program which attempted to test equality of files using inodes and found that the test doesn't work when one or more of the files are remote? Didn't think so. So you're basing it on other research you've read, where someone else did that test? Can you link us to at least one such research report? Didn't think so. As usual.... you are full of hot air.	[reply]