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nspawn: add a bit of debug logging to resolved_listening()

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This commit is contained in:
Lennart Poettering 2018-05-12 12:51:20 -07:00
parent 09d423e921
commit b8ea7a6e12
1 changed files with 9 additions and 5 deletions
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14
src/nspawn/nspawn.c
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@ -38,6 +38,7 @@
#include "base-filesystem.h"
#include "blkid-util.h"
#include "btrfs-util.h"
#include "bus-error.h"
#include "bus-util.h"
#include "cap-list.h"
#include "capability-util.h"
@ -1540,6 +1541,7 @@ static int have_resolv_conf(const char *path) {
}
static int resolved_listening(void) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_free_ char *dns_stub_listener_mode = NULL;
int r;
@ -1548,21 +1550,23 @@ static int resolved_listening(void) {
r = sd_bus_open_system(&bus);
if (r < 0)
return r;
return log_debug_errno(r, "Failed to open system bus: %m");
r = bus_name_has_owner(bus, "org.freedesktop.resolve1", NULL);
if (r <= 0)
return r;
if (r < 0)
return log_debug_errno(r, "Failed to check whether the 'org.freedesktop.resolve1' bus name is taken: %m");
if (r == 0)
return 0;
r = sd_bus_get_property_string(bus,
"org.freedesktop.resolve1",
"/org/freedesktop/resolve1",
"org.freedesktop.resolve1.Manager",
"DNSStubListener",
NULL,
&error,
&dns_stub_listener_mode);
if (r < 0)
return r;
return log_debug_errno(r, "Failed to query DNSStubListener property: %s", bus_error_message(&error, r));
return STR_IN_SET(dns_stub_listener_mode, "udp", "yes");
}