uloop: avoid integer overflow in tv_diff

[project/libubox.git] / uloop.c

diff --git a/uloop.c b/uloop.c
index 8517366a55f19154b25a67dd21ce1e08f09e1589..2972727374644505c8b58f8bf6e3dec8e8ae816b 100644 (file)
--- a/uloop.c
+++ b/uloop.c
@@ -249,7 +249,7 @@ int uloop_fd_delete(struct uloop_fd *fd)
        return __uloop_fd_delete(fd);
 }
 
-static int tv_diff(struct timeval *t1, struct timeval *t2)
+static int64_t tv_diff(struct timeval *t1, struct timeval *t2)
 {
        return
                (t1->tv_sec - t2->tv_sec) * 1000 +
@@ -317,7 +317,7 @@ int uloop_timeout_cancel(struct uloop_timeout *timeout)
        return 0;
 }
 
-int uloop_timeout_remaining(struct uloop_timeout *timeout)
+int64_t uloop_timeout_remaining(struct uloop_timeout *timeout)
 {
        struct timeval now;
 
@@ -477,7 +477,7 @@ static void uloop_setup_signals(bool add)
 static int uloop_get_next_timeout(struct timeval *tv)
 {
        struct uloop_timeout *timeout;
-       int diff;
+       int64_t diff;
 
        if (list_empty(&timeouts))
                return -1;