Dominique Pelle wrote:
> Bram Moolenaar wrote:
>
> > Patch 7.2.076
> > Problem: rename(from, to) deletes the file if "from" and "to" are not
> > equal
> > but still refer to the same file. E.g., on a FAT32 filesystem
> > under Unix.
> > Solution: Go through another file name.
> > Files: src/fileio.c
> >
> >
> > *** ../vim-7.2.075/src/fileio.c Fri Nov 28 21:26:50 2008
> > --- src/fileio.c Tue Dec 30 16:04:44 2008
> > ***************
> > *** 6119,6124 ****
> > --- 6119,6165 ----
> > if (mch_stat((char *)from, &st) < 0)
> > return -1;
> >
> > + #ifdef UNIX
> > + {
> > + struct stat st_to;
> > + char tempname[MAXPATHL + 1];
> > +
> > + /* It's possible for the source and destination to be the same file.
> > + * This happens when "from" and "to" differ in case and are on a
> > FAT32
> > + * filesystem. In that case go through a temp file name. */
> > + if (mch_stat((char *)to, &st_to) >= 0
> > + && st.st_dev == st_to.st_dev
> > + && st.st_ino == st_to.st_ino)
> > + {
> [...]
>
> Will the stat() technique to find whether 2 files are identical work on
> all FAT file systems?
>
> I think remembering that FAT file systems don't have the concept of
> inodes, unlike Unix file systems, so stat() either leaves st_ino as 0,
> or synthesizes a fake inode number. I will try it later when I have time.
Inodes must work on any file system. It is a basic concept in Unix. If
st_ino doesn't have a valid value that you should not use that file
system, many tools will not work.
--
People who want to share their religious views with you
almost never want you to share yours with them.
/// Bram Moolenaar -- b...@moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ download, build and distribute -- http://www.A-A-P.org ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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