link(2) allows directory hard links, man page says otherwise
link(2) allows directory hard links, man page says otherwise
- Subject: link(2) allows directory hard links, man page says otherwise
- From: Rosyna <email@hidden>
- Date: Wed, 12 Dec 2007 16:12:59 -0700
The actual implementation of link() on 10.5 allows for directory hard
links on HFS+ as long as they follow these rules:
- Source parent and destination parent cannot match
- A link is not permitted in the root directory
- Parent of 'pointed at' directory is not the root directory
- The 'pointed at' directory (source) is not an ancestor of the new
directory hard link (destination).
- No ancestor of the new directory hard link (destination) is a
directory hard link.
The man page for link(2) says (in various places):
As mandated by POSIX.1, path1 may not be a directory.
[EPERM] The file named by path1 is a directory.
STANDARDS
The link() function is expected to conform to IEEE Std
1003.1-1988 (``POSIX.1'').
But actually calling link() allows for directory hard links. Is this
an error in the documentation, an error in the function, or am I
connecting two things that shouldn't be?
---
Sincerely,
Rosyna Keller
Technical Support/Carbon troll/Always needs a hug
Unsanity: Unsane Tools for Insanely Great People
It's either this, or imagining Phil Schiller in a thong.
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