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Re: patch to allow touch to work on HPFS (and others, maybe??)

Corinna Vinschen <vinschen <at>> writes:
> I guess trying my approach isn't the worst one, though.  We should
> use that as a start point for further experimenting, IMHO.  I'll check
> that in.

Checking win32.has_acls() and using GENERIC_WRITE caused a regression in utimes
().  The new upstream automake-1.9.5 tarball contains a read-only file (mode 
0444).  Before the 20050211 snapshot, when utimes() is still using 
FILE_WRITE_ATTRIBUTES, tar does just fine at adjusting the timestamp of that 
file when unpacking to an NFS-mounted directory.  However, with the current 
code, when I tried to unpack, tar is no longer able to touch the timestamps of 
the read-only file because GENERIC_WRITE requires write access for at least one 
of user, group, and other, even though touching the timestamp does not.

$ tar xjvf automake-1.9.5.tar.bz2
tar: automake-1.9.5/m4/amversion.m4: Cannot utime: Permission denied
tar: Error exit delayed from previous errors
$ echo $?

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