LINK
Section: System Calls (2)
Updated: August 26, 1985
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NAME
link - make a hard link to a file
SYNOPSIS
link(name1, name2)
char *name1, *name2;
DESCRIPTION
A hard link
to
name1
is created;
the link has the name
name2.
Name1
must exist.
With hard links,
both
name1
and
name2
must be in the same file system.
Unless the caller is the super-user,
name1
must not be a directory.
Both the old and the new
link
share equal access and rights to
the underlying object.
RETURN VALUE
Upon successful completion, a value of 0 is returned. Otherwise,
a value of -1 is returned and
errno
is set to indicate the error.
ERRORS
Link
will fail and no link will be created if one or more of the following
are true:
- [ENOTDIR]
-
A component of either path prefix is not a directory.
- [EINVAL]
-
Either pathname contains a character with the high-order bit set.
- [ENAMETOOLONG]
-
A component of either pathname exceeded 255 characters,
or entire length of either path name exceeded 1023 characters.
- [ENOENT]
-
A component of either path prefix does not exist.
- [EACCES]
-
A component of either path prefix denies search permission.
- [EACCES]
-
The requested link requires writing in a directory with a mode
that denies write permission.
- [ELOOP]
-
Too many symbolic links were encountered in translating one of the pathnames.
- [ENOENT]
-
The file named by name1 does not exist.
- [EEXIST]
-
The link named by name2 does exist.
- [EPERM]
-
The file named by name1 is a directory and the effective
user ID is not super-user.
- [EXDEV]
-
The link named by name2 and the file named by name1
are on different file systems.
- [ENOSPC]
-
The directory in which the entry for the new link is being placed
cannot be extended because there is no space left on the file
system containing the directory.
- [EDQUOT]
-
The directory in which the entry for the new link
is being placed cannot be extended because the
user's quota of disk blocks on the file system
containing the directory has been exhausted.
- [EIO]
-
An I/O error occurred while reading from or writing to
the file system to make the directory entry.
- [EROFS]
-
The requested link requires writing in a directory on a read-only file
system.
- [EFAULT]
-
One of the pathnames specified
is outside the process's allocated address space.
SEE ALSO
symlink(2), unlink(2)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- SEE ALSO
-
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