Getting a fully-qualified path from a PID

[mar...@marcuscom.com]

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What is the canonical way for a userland application to get the
fully-qualified path of an executable from its running PID? I know I
can do a readlink(2) on /proc/pid/file, but procfs is deprecated on 5.X,
correct? Is there a more appropriate way to do this? Thanks.

Joe

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