[Bug 1413978] Re: rename updates ctime. The glibc manual says otherwise.

Mon Mar 14 20:03:57 UTC 2016

glibc is not only for Linux.  POSIX allows either behaviour, see

http://pubs.opengroup.org/onlinepubs/009695399/functions/rename.html

APPLICATION USAGE

    Some implementations mark for update the st_ctime field of renamed
files and some do not. Applications which make use of the st_ctime field
may behave differently with respect to renamed files unless they are
designed to allow for either behavior.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to glibc in Ubuntu.
https://bugs.launchpad.net/bugs/1413978

Title:
  rename updates ctime.  The glibc manual says otherwise.

Status in glibc package in Ubuntu:
  New

Bug description:
  glibc manual (both in the glibc included with Ubuntu 14.10 and also in
  upstream glibc from git on 2014-01-23) at 14.9.9 File Times says:

  "Renaming a file with 'rename' affects only the attribute change time
  and modification time fields of the two parent directories involved,
  and not the times for the file being renamed."

  But in practice (tested on Ubuntu 14.10) renaming a file does change
  its ctime.  I have checked it both at the command line and also with
  the small program attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: libc6 2.19-10ubuntu2.2
  ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
  Uname: Linux 3.16.0-29-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jan 23 10:24:24 2015
  Dependencies:
   gcc-4.9-base 4.9.1-16ubuntu6
   libc6 2.19-10ubuntu2.2
   libgcc1 1:4.9.1-16ubuntu6
   multiarch-support 2.19-10ubuntu2.2
  InstallationDate: Installed on 2014-10-23 (91 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  SourcePackage: glibc
  UpgradeStatus: Upgraded to utopic on 2015-01-15 (7 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1413978/+subscriptions