Change in ...osmo-hlr[master]: change format of 'last LU seen'

laforge gerrit-no-reply at
Fri Aug 30 18:57:31 UTC 2019

Hello lynxis lazus,

I'd like you to do a code review. Please visit

to review the following change.

Change subject: change format of 'last LU seen'

change format of 'last LU seen'

So far, the time string format comes from ctime_r, and we manually add "UTC" to it.

The ctime_r format is wildly chaotic IMHO, mixing weekday, day-of-month and
hour and year in very unsorted ways.

Adding "UTC" to it is non-standard.

Instead use an ISO-8601 standardized time string via strftime().

Change-Id: I6731968f05050399f4dd43b241290186e0c59e1a
M src/hlr_vty_subscr.c
1 file changed, 8 insertions(+), 10 deletions(-)

  git pull ssh:// refs/changes/59/15359/1

diff --git a/src/hlr_vty_subscr.c b/src/hlr_vty_subscr.c
index 73dfab6..b53227a 100644
--- a/src/hlr_vty_subscr.c
+++ b/src/hlr_vty_subscr.c
@@ -35,16 +35,15 @@
 #define hexdump_buf(buf) osmo_hexdump_nospc((void*)buf, sizeof(buf))
-static char *
-get_datestr(const time_t *t, char *datebuf)
+static char *get_datestr(const time_t *t)
-	char *p, *s = ctime_r(t, datebuf);
+	static char buf[32];
+	struct tm tm;
-	/* Strip trailing newline. */
-	p = strchr(s, '\n');
-	if (p)
-		*p = '\0';
-	return s;
+	tm = *gmtime(t);
+	strftime(buf, sizeof(buf), "%FT%T+00:00", &tm);
+	return buf;
 static void subscr_dump_full_vty(struct vty *vty, struct hlr_subscriber *subscr)
@@ -52,7 +51,6 @@
 	int rc;
 	struct osmo_sub_auth_data aud2g;
 	struct osmo_sub_auth_data aud3g;
-	char datebuf[26]; /* for ctime_r(3) */
 	vty_out(vty, "    ID: %"PRIu64"%s", subscr->id, VTY_NEWLINE);
@@ -88,7 +86,7 @@
 	if (subscr->ms_purged_ps)
 		vty_out(vty, "    PS purged%s", VTY_NEWLINE);
 	if (subscr->last_lu_seen)
-		vty_out(vty, "    last LU seen: %s UTC%s", get_datestr(&subscr->last_lu_seen, datebuf), VTY_NEWLINE);
+		vty_out(vty, "    last LU seen: %s%s", get_datestr(&subscr->last_lu_seen), VTY_NEWLINE);
 	if (!*subscr->imsi)

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Gerrit-Project: osmo-hlr
Gerrit-Branch: master
Gerrit-Change-Id: I6731968f05050399f4dd43b241290186e0c59e1a
Gerrit-Change-Number: 15359
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <laforge at>
Gerrit-Reviewer: lynxis lazus <lynxis at>
Gerrit-MessageType: newchange
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