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| author | Iker Pedrosa <ipedrosa@redhat.com> | 2022-10-06 10:05:44 +0200 |
|---|---|---|
| committer | Serge Hallyn <serge@hallyn.com> | 2022-10-07 09:53:02 -0500 |
| commit | fbf275da195b3f3c762472f6660497f70cb3531e (patch) | |
| tree | bfec16c7e1530f6fb323785e3b7a348a7aad17ae | |
| parent | 1e5f9a72b0c49b34d29284528d36bb8bafbd862b (diff) | |
lastlog: check for localtime() return value
Signed-off-by: Tomáš Mráz <tm@t8m.info>
Signed-off-by: Iker Pedrosa <ipedrosa@redhat.com>
| -rw-r--r-- | src/lastlog.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/lastlog.c b/src/lastlog.c index 0d4b5fd2..f5c0a5cc 100644 --- a/src/lastlog.c +++ b/src/lastlog.c @@ -150,9 +150,12 @@ static void print_one (/*@null@*/const struct passwd *pw) ll_time = ll.ll_time; tm = localtime (&ll_time); - strftime (ptime, sizeof (ptime), "%a %b %e %H:%M:%S %z %Y", tm); - cp = ptime; - + if (tm == NULL) { + cp = "(unknown)"; + } else { + strftime (ptime, sizeof (ptime), "%a %b %e %H:%M:%S %z %Y", tm); + cp = ptime; + } if (ll.ll_time == (time_t) 0) { cp = _("**Never logged in**\0"); } |