Red Hat Bugzilla – Bug 239000
pax fails creation of ustar if an absolute name is exactly 100 characters long
Last modified: 2010-10-22 10:43:49 EDT
Description of problem:
If pax attempts to create a ustar format archive with absolute path names it
fails on paths that are exactly 100 characters long. Where the length is <100 or
101-254 it works.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. unpack the attached tar with tar -x -C / -f pax_abs_test.tar
2. pax -w -f /var/tmp/px.tar /var/tmp/pax_abs_test -x ustar
pax: File name too long for ustar
no errors, complete tar.
The pax source contains a specific mention of the boundary condition where the
name is of the form /str and 100 characters long and errs on the side of
absolute posix adherence. What it fails to account for is when the name is of
the form /dir/str and the length is 100 characters. In this situation it would
be valid to perform the normal split procedure as long as the split is not at
the first character.
Created attachment 154110 [details]
tar file with absolute names of varying lengths to illustrate problem/test solution.
Created attachment 154111 [details]
patch to fix absolute 100 char file issue
This request was evaluated by Red Hat Product Management for
inclusion, but this component is not scheduled to be updated in
the current Red Hat Enterprise Linux release. If you would like
this request to be reviewed for the next minor release, ask your
support representative to set the next rhel-x.y flag to "?".
As RHEL-4.9 is last update for RHEL-4 and it is not suitable for new features
and should address only security, performance and critical issues, I'm closing
that bugzilla WONTFIX. Problem is fixed in RHEL-5.