[gentoo-commits] proj/portage-utils:master commit in: /

[Fabian Groffen]

commit:     7ba3ab567aee55dfae0779a3d76c535fea2023d1
Author:     Fabian Groffen <grobian <AT> gentoo <DOT> org>
AuthorDate: Wed Nov 13 12:52:20 2019 +0000
Commit:     Fabian Groffen <grobian <AT> gentoo <DOT> org>
CommitDate: Wed Nov 13 12:52:20 2019 +0000
URL:        https://gitweb.gentoo.org/proj/portage-utils.git/commit/?id=7ba3ab56

qlop: check return from localtime in fmt_date

bogus input can result in NULL, crashing strftime

Thanks Agostino Sarubbo

Signed-off-by: Fabian Groffen <grobian <AT> gentoo.org>

 qlop.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/qlop.c b/qlop.c
index 601ad87..95cd64b 100644
--- a/qlop.c
+++ b/qlop.c
@@ -204,13 +204,14 @@ static char _date_buf[48];
 static char *fmt_date(struct qlop_mode *flags, time_t ts, time_t te)
 {
 	time_t t = flags->do_endtime ? te : ts;
+	struct tm lt;
 
-	if (flags->do_machine)
+	if (flags->do_machine || localtime_r(&t, &lt) == NULL)
 		snprintf(_date_buf, sizeof(_date_buf),
 				"%zd", (size_t)t);
 	else
 		strftime(_date_buf, sizeof(_date_buf),
-				"%Y-%m-%dT%H:%M:%S", localtime(&t));
+				"%Y-%m-%dT%H:%M:%S", &lt);
 
 	return _date_buf;
 }