Rework all non-contributed files that use `struct timezone'.

This structure is not part of POSIX. According to POSIX, gettimeofday()
has the following prototype:

	int gettimeofday(struct timeval *restrict tp, void *restrict tzp);

Also, POSIX states that gettimeofday() shall return 0 (as long as tzp is
not used). Remove dead error handling code. Also use NULL for a
nul-pointer instead of integer 0.

While there, change all pieces of code that only use tv_sec to use
time(3), as this provides less overhead.

1 files changed, 1 insertions, 2 deletions

diff --git a/usr.sbin/cron/crontab/crontab.c b/usr.sbin/cron/crontab/crontab.c
index 69c460633443..1ac81b029545 100644
--- a/usr.sbin/cron/crontab/crontab.c
+++ b/usr.sbin/cron/crontab/crontab.c
@@ -627,9 +627,8 @@ static void
 poke_daemon() {
 #ifdef USE_UTIMES
 	struct timeval tvs[2];
-	struct timezone tz;
 
-	(void) gettimeofday(&tvs[0], &tz);
+	(void)gettimeofday(&tvs[0], NULL);
 	tvs[1] = tvs[0];
 	if (utimes(SPOOL_DIR, tvs) < OK) {
 		warn("can't update mtime on spooldir %s", SPOOL_DIR);