nscd vs. ports that add user/group (Was: Time to mark portupgrade deprecated?)

[Test Rat]

Test Rat <ttsestt at gmail.com> writes:

>> As a testimonial to the diabolical nature of FreeBSD yesterday i have
>> installed a PC with FreeBSD-8.2 RELEASE, using the distributed packages
>> (pkg_add -r). When installing gimp, something went south. After some
>> checks it was avahi-app which refused to install, the reason being
>> that pw groupadd -n avahi failed, with the message:
>> "group disappeared during update"
> [...]
>
> Did you have nscd(8) running at the time? Try invalidating its cache.

Nevermind previous patch. This one actually works.

%% it's still an ugly hack
Index: usr.sbin/pw/pwupd.c
===================================================================
--- usr.sbin/pw/pwupd.c	(revision 224499)
+++ usr.sbin/pw/pwupd.c	(working copy)
@@ -191,6 +191,7 @@ pw_update(struct passwd * pwd, char const * user,
 			}
 		}
 	}
+	system("nscd -I passwd 2>/dev/null >&2");
 	return rc;
 }
 
Index: usr.sbin/pw/grupd.c
===================================================================
--- usr.sbin/pw/grupd.c	(revision 224499)
+++ usr.sbin/pw/grupd.c	(working copy)
@@ -148,6 +148,7 @@ gr_update(struct group * grp, char const * group,
 	}
 	if (grbuf != NULL)
 		free(grbuf);
+	system("nscd -I group 2>/dev/null >&2");
 	return l;
 }
 
%%