(dns_nssconf_loadpath (ld.resolv_conf, fname));
if (err)
{
- log_error ("failed to load '%s': %s\n", fname, gpg_strerror (err));
- /* not fatal, nsswitch.conf is not used on all systems; assume
- * classic behavior instead. Our dns library states "bf" which tries
- * DNS then Files, which is not classic; FreeBSD
- * /usr/src/lib/libc/net/gethostnamadr.c defines default_src[] which
- * is Files then DNS, which is. */
+ /* This is not a fatal error: nsswitch.conf is not used on
+ * all systems; assume classic behavior instead. */
+ if (gpg_err_code (err) != GPG_ERR_ENOENT)
+ log_error ("failed to load '%s': %s\n", fname, gpg_strerror (err));
if (opt_debug)
log_debug ("dns: fallback resolution order, files then DNS\n");
ld.resolv_conf->lookup[0] = 'f';
ld.resolv_conf->lookup[2] = '\0';
err = GPG_ERR_NO_ERROR;
}
+ else if (!strchr (ld.resolv_conf->lookup, 'b'))
+ {
+ /* No DNS resulution type found in the list. This might be
+ * due to systemd based systems which allow for custom
+ * keywords which are not known to us and thus we do not
+ * know whether DNS is wanted or not. Becuase DNS is
+ * important for our infrastructure, we forcefully append
+ * DNS to the end of the list. */
+ if (strlen (ld.resolv_conf->lookup)+2 < sizeof ld.resolv_conf->lookup)
+ {
+ if (opt_debug)
+ log_debug ("dns: appending DNS to resolution order\n");
+ strcat (ld.resolv_conf->lookup, "b");
+ }
+ else
+ log_error ("failed to append DNS to resolution order\n");
+ }
#endif /* Unix */
}