libbb/bb_do_delay.c: shrink

function                                             old     new   delta
difftime                                               9       -      -9
bb_do_delay                                           88      38     -50
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-59)             Total: -59 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/libbb/bb_do_delay.c b/libbb/bb_do_delay.c
index 3d52cc562..139dc1878 100644
--- a/libbb/bb_do_delay.c
+++ b/libbb/bb_do_delay.c
@@ -13,10 +13,9 @@ void FAST_FUNC bb_do_delay(int seconds)
 {
         time_t start, now;
 
-        time(&start);
-        now = start;
-        while (difftime(now, start) < seconds) {
+        start = time(NULL);
+        do {
                 sleep(seconds);
-                time(&now);
-        }
+                now = time(NULL);
+        } while ((now - start) < seconds);
 }