bin/60079: realpath(3) accepts zero size symbolic links

[Garrett Wollman]

The following reply was made to PR bin/60079; it has been noted by GNATS.

From: Garrett Wollman <wollman at khavrinen.lcs.mit.edu>
To: dada at sbox.tugraz.at
Cc: freebsd-gnats-submit at freebsd.org
Subject: bin/60079: realpath(3) accepts zero size symbolic links
Date: Wed, 10 Dec 2003 15:57:12 -0500 (EST)

 <<On Tue,  9 Dec 2003 15:54:20 +0100, dada at sbox.tugraz.at said:
 
 > 	The libc realpath(3) routine accepts zero size symbolic links
 > 	without returning any error indication. Since namei(9) will
 > 	never accept such a path this behaviour is misleading and
 > 	could confuse applications.
 
 If namei(9) doesn't accept such a path it is broken.  POSIX clearly
 (well, actually, murkily but definitively) specifies the (very
 unintuitive) meaning of such a symbolic link.
 
 -GAWollman