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open.2: Note ambiguity of ELOOP error when using O_NOFOLLOW 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2017-01-26 09:55:08 +13:00
parent 8db11e238b
commit 6ccb7137eb
1 changed files with 5 additions and 1 deletions
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man2/open.2
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@ -517,7 +517,11 @@ will not become the process's controlling terminal even if the
process does not have one.
.TP
.B O_NOFOLLOW
If \fIpathname\fP is a symbolic link, then the open fails.
If \fIpathname\fP is a symbolic link, then the open fails, with the error
.BR ELOOP .
(Note that this is indistinguishable from the case where
an open fails because there are too many symbolic links found
while resolving components in the prefix part of the pathname.)
This flag is a FreeBSD extension, which was added to Linux in version 2.1.126,
and has subsequently been standardized in POSIX.1-2008.
Symbolic links in earlier components of the pathname will still be