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| author | peter <peter@FreeBSD.org> | 1996-05-24 16:32:11 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 1996-05-24 16:32:11 +0000 |
| commit | 0f5a7440b6758c699bf0520a7e28678f05d269a7 (patch) | |
| tree | dad89c1fa460db1f6a988e262d7f74fbbd63fcf7 /lib/libc/sys/link.2 | |
| parent | 9453593a7d6b8b4929584c55937cbc51e5de1a67 (diff) | |
| download | FreeBSD-src-0f5a7440b6758c699bf0520a7e28678f05d269a7.zip FreeBSD-src-0f5a7440b6758c699bf0520a7e28678f05d269a7.tar.gz | |
Document that the superuser cannot override link() and unlink() on
directories, and mention that it was historical practice.
Diffstat (limited to 'lib/libc/sys/link.2')
| -rw-r--r-- | lib/libc/sys/link.2 | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/libc/sys/link.2 b/lib/libc/sys/link.2 index d160786..4c27ab9 100644 --- a/lib/libc/sys/link.2 +++ b/lib/libc/sys/link.2 @@ -74,7 +74,6 @@ both and .Fa name2 must be in the same file system. -Unless the caller is the super-user, .Fa name1 may not be a directory. .Sh RETURN VALUES @@ -113,8 +112,7 @@ does exist. .It Bq Er EPERM The file named by .Fa name1 -is a directory and the effective -user ID is not super-user. +is a directory. .It Bq Er EXDEV The link named by .Fa name2 @@ -149,3 +147,10 @@ is outside the process's allocated address space. is expected to conform to IEEE Std 1003.1-1988 .Pq Dq Tn POSIX . +.Sh HISTORY +.Pp +The +.Nm +system call traditionally allows the super-user to link directories which +corrupts the filesystem coherency. This implementation no longer permits +it. |
