Re: address@hidden: Usernames with @ signs break "file being modified by another user" lock symlinks]

[Jason Rumney]

Richard Stallman wrote:
> [I sent this message twice but did not get a response.
> Could we get the discussion moving again?]
>
> I think this problem still happens in Emacs 22.
> I think the fix is to establish a quoting convention
> for strange characters in the user name.  Perhaps quoted printable
> encoding.
>   

The problem seems to come not from the fact that @ is a special
character, but from the following code, which assumes that @ does not
appear in the username. Since @ cannot appear in hostnames, nor in
timestamps or pids AFAIK, we can probably fix this by changing index to
rindex in the third line below. I don't think any system allows
characters in the username that are not valid in the filename, so this
should be sufficient.

  /* Parse address@hidden:BOOT_TIME.  If can't parse, return -1.  */
  /* The USER is everything before the first @.  */
  at = index (lfinfo, '@');
  dot = rindex (lfinfo, '.');