Sort sections. Remove trailing whitespace. Sort errors.
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@ -1,4 +1,4 @@
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.\" $NetBSD: link.2,v 1.25 2011/08/08 12:08:53 manu Exp $
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.\" $NetBSD: link.2,v 1.26 2011/08/08 19:50:17 wiz Exp $
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.\"
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.\" Copyright (c) 1980, 1991, 1993, 2011
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.\" The Regents of the University of California. All rights reserved.
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@ -79,24 +79,26 @@ must be in the same file system.
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.Fa name1
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may not be a directory unless the caller is the super-user
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and the file system containing it supports linking to directories.
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.Pp
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.Pp
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When operating on a symlink,
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.Fn link
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resolves the symlink and creates a hard link on the target.
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resolves the symlink and creates a hard link on the target.
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.Fn linkat
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will do the same if
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will do the same if
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.Dv AT_SYMLINK_FOLLOW
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is set in
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is set in
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.Fa flags ,
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but it will link on the symlink itself if the flag is clear.
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.Pp
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At the moment,
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At the moment,
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.Fn linkat
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is partially implemented. It will return
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.Er ENOSYS for
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is partially implemented.
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It will return
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.Er ENOSYS
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for
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.Fa fd1
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and
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.Fa fd2
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and
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.Fa fd2
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values different than
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.Dv AT_FDCWD .
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.Sh RETURN VALUES
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@ -108,8 +110,32 @@ is set to indicate the error.
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.Fn link
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will fail and no link will be created if:
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.Bl -tag -width Er
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.It Bq Er ENOTDIR
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A component of either path prefix is not a directory.
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.It Bq Er EACCES
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A component of either path prefix denies search permission, or
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the requested link requires writing in a directory with a mode
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that denies write permission.
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.It Bq Er EDQUOT
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The directory in which the entry for the new link
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is being placed cannot be extended because the
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user's quota of disk blocks on the file system
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containing the directory has been exhausted.
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.It Bq Er EEXIST
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The link named by
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.Fa name2
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does exist.
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.It Bq Er EFAULT
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One of the pathnames specified
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is outside the process's allocated address space.
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.It Bq Er EIO
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An I/O error occurred while reading from or writing to
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the file system to make the directory entry.
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.It Bq Er ELOOP
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Too many symbolic links were encountered in translating one of the pathnames.
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.It Bq Er EMLINK
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The link count of the file named by
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.Fa name1
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would exceed
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.Dv {LINK_MAX} .
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.It Bq Er ENAMETOOLONG
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A component of a pathname exceeded
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.Brq Dv NAME_MAX
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@ -117,30 +143,20 @@ characters, or an entire path name exceeded
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.Brq Dv PATH_MAX
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characters.
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.It Bq Er ENOENT
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A component of either path prefix does not exist.
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.It Bq Er EACCES
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A component of either path prefix denies search permission, or
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the requested link requires writing in a directory with a mode
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that denies write permission.
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.It Bq Er ELOOP
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Too many symbolic links were encountered in translating one of the pathnames.
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.It Bq Er ENOENT
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The file named by
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A component of either path prefix does not exist, or the file named
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by
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.Fa name1
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does not exist.
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.It Bq Er ENOSPC
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The directory in which the entry for the new link is being placed
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cannot be extended because there is no space left on the file
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system containing the directory.
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.It Bq Er ENOTDIR
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A component of either path prefix is not a directory.
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.It Bq Er EOPNOTSUPP
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The file system containing the file named by
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.Fa name1
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does not support links.
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.It Bq Er EMLINK
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The link count of the file named by
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.Fa name1
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would exceed
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.Dv {LINK_MAX} .
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.It Bq Er EEXIST
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The link named by
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.Fa name2
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does exist.
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.It Bq Er EPERM
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The file named by
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.Fa name1
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@ -149,39 +165,24 @@ user ID is not super-user,
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or the file system containing the file does not permit the use of
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.Fn link
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on a directory.
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.It Bq Er EROFS
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The requested link requires writing in a directory on a read-only file
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system.
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.It Bq Er EXDEV
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The link named by
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.Fa name2
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and the file named by
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.Fa name1
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are on different file systems.
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.It Bq Er ENOSPC
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The directory in which the entry for the new link is being placed
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cannot be extended because there is no space left on the file
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system containing the directory.
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.It Bq Er EDQUOT
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The directory in which the entry for the new link
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is being placed cannot be extended because the
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user's quota of disk blocks on the file system
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containing the directory has been exhausted.
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.It Bq Er EIO
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An I/O error occurred while reading from or writing to
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the file system to make the directory entry.
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.It Bq Er EROFS
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The requested link requires writing in a directory on a read-only file
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system.
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.It Bq Er EFAULT
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One of the pathnames specified
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is outside the process's allocated address space.
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.El
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.Sh SEE ALSO
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.Xr symlink 2 ,
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.Xr unlink 2
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.Sh BUGS
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.Fn linkat
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is partially implemented.
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.Sh STANDARDS
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The
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.Fn link
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function conforms to
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.St -p1003.1-90 .
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.Sh BUGS
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.Fn linkat
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is partially implemented.
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