Date: Wed, 11 Feb 2015 19:06:04 +0100 From: =?windows-1252?Q?Jean-S=E9bastien_P=E9dron?= <dumbbell@FreeBSD.org> To: freebsd-current@freebsd.org Subject: Re: unbound crashes on bootup Message-ID: <54DB9A0C.1010806@FreeBSD.org> In-Reply-To: <1264.1423227963@critter.freebsd.dk> References: <1264.1423227963@critter.freebsd.dk>
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On 06.02.2015 14:06, Poul-Henning Kamp wrote:
> I just updated my -current to r278283, and unbound (still) croaks
> during bootup:
Hi!
I have a similar problem. Also, unbound crashes each time I start/stop
OpenVPN. I suppose the problem is the same in both cases.
The crash happens in the config_lookup_uid() in
contrib/unbound/util/config_file.c. Here's the code:
struct passwd *pwd;
if((pwd =3D getpwnam(cfg->username)) =3D=3D NULL)
log_err("user '%s' does not exist.", cfg->username);
cfg->uid =3D pwd->pw_uid;
getpwnam(3) returns NULL: an error message is logged but the function
doesn't return. Therefore, the program segfaults on "pwd->pw_uid" on the
next line.
But why did getpwnam(3) return NULL in the first place? It looks for the
"unbound" user which exists. getpwnam() calls _nsdispatch() which fails.
I have the default nsswitch.conf. I didn't look at the problem more
deeply yet, but could getpwnam()/_nsdispatch() be unhappy with the
absence of a working DNS resolver (unbound is being (re)started)?
--=20
Jean-S=E9bastien P=E9dron
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