Patch for adduser: Create a system user

[Charlie Brady]

On Mon, 29 Oct 2007, Denys Vlasenko wrote:

> It also has "can select duplicate uid" bug fixed too:
> 
>         /* check for a free uid (and maybe gid) */
>         while (getpwuid(p->pw_uid) || (!p->pw_gid && getgrgid(p->pw_uid)))
>                 p->pw_uid++;
> 
> BTW, why are we setting setgid bit here?
> 
>       chmod(pw.pw_dir, 02755) /* set setgid bit on homedir */
> 
> I vaguely remember that it means something for the creation of new files.
> Right?

New files will take the group from the directory, rather than the gid of 
the creating process.

Google is still your friend:

http://www.google.com/search?q=setgid+directory+permissions

--
Charlie