Bugtraq mailing list archives
Re: pt_chmod
From: Jeff.Smith () dcs warwick ac uk (Jeff Smith)
Date: Sun, 4 Dec 1994 21:31:17 +0000 (GMT)
Fortunately for SVR4 (and probably solaris) systems, the filesystem always returns an "ENOENT" if the user trys to create a file with zero length, so the "chown("", uid, gid)" should never succeed. However, on^^^^^ I take it that you meant 'zero name length' instead of 'zero length', right?[...] Yep. for example: (and /etc/termcap exists...) $ truss ln -s /etc/termcap ""
From the original V7 paper "The Unix Time-Sharing System" by Ritchie
and Thompson: ".. If a file begins with a slash, the search starts in the root directory... As a limiting case, the name "/" refers to the root itself. .. The simplest kind of name, for example, \fBalpha\fR, refers to a file that itself is found in the current directory. As another limiting case, the null file name refers to the current directory." You might therefore expect chown("", uid, gid) to be equivalent to chown(".", uid, gid) and ln -s /etc/termcap "" to be equivalent to ln -s /etc/termcap ., on systems that preserve the early semantics. -- Jeff Smith, Computer Science, Warwick University, Coventry, CV4 7AL, England jeff () dcs warwick ac uk phone: +44 203 523485 fax: +44 203 525714
Current thread:
- Re: pt_chmod Bela Lubkin (Dec 02)
- Re: pt_chmod Karl Strickland (Dec 03)
- Re: pt_chmod Peter Wemm (Dec 03)
- Re: pt_chmod Peter Wemm (Dec 04)
- Re: pt_chmod Casper Dik (Dec 04)
- <Possible follow-ups>
- Re: pt_chmod Bela Lubkin (Dec 03)
- SCO (was Re: pt_chmod) Karl Strickland (Dec 04)
- Re: pt_chmod Bela Lubkin (Dec 04)
- Re: pt_chmod Peter Wemm (Dec 04)
- Re: pt_chmod Jeff Smith (Dec 04)