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[[!meta copyright="Copyright © 1994, 1995, 1996, 1997, 1998, 1999, 2002, 2009
Free Software Foundation, Inc."]]
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[[!meta title="dir_link"]]
routine dir_link (
dir: file_t;
RPT
file: file_t;
name: string_t;
excl: int);
Create a hard link.
If `dir` and `file` are not implemented by the same filesystem, `EXDEV` should
be returned. If the two filesystems, however can inter-operate and guarantee
the appropriate POSIX semantics, they can communicate by a private protocol and
allow hard links between them. If `excl` is set, then fail if `name` already
exists in `dir`.
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