Re: Bug#336843: adduser: removes user from group if /etc/group file ends with ":"
reassign 336843 glibc
thanks
On Thu, Nov 03, 2005 at 09:11:15PM +0100, Marc Haber wrote:
>On Tue, Nov 01, 2005 at 05:43:40PM +0100, Marc Haber wrote:
>> If a line in /etc/group ends with a colon, adduser user group removes
>> the last user listed in /etc/group:
>Actually, it's perl's fault:
>$ grep '^wheel' /etc/group
>wheel:x:104:mh,scyadmin:
>$ perl -e 'foreach (split(/ /,
>(getgrnam("wheel"))[3])) { print "$_\n"; };'
>mh
>scyadmin:
>[12/511]mh@scyw00225:~$
>
>Judged that ":" is the field separator in /etc/group, and that
>/etc/group might change its format to include more fields, and that a
>colon is not a valid character in a user name (it would wreck havoc in
>/etc/passwd), I would expect that perl would consider the ":" a
>delimiter here and not return it as part of the group name.
perl doesn't parse /etc/group directly, it just calls libc's getgrname,
which returns a list as gr_mem (the last entry of which has a trailing
colon in this case).
--bod
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