udhcpc: make sure we do not overflow poll timeout
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index 067d351..bea589d 100644
--- a/networking/udhcp/d6_dhcpc.c
+++ b/networking/udhcp/d6_dhcpc.c
@@ -1085,7 +1085,7 @@
if (tv > 0) {
log1("waiting on select %u seconds", tv);
timestamp_before_wait = (unsigned)monotonic_sec();
- retval = poll(pfds, 2, tv * 1000);
+ retval = poll(pfds, 2, tv < INT_MAX/1000 ? tv * 1000 : INT_MAX);
if (retval < 0) {
/* EINTR? A signal was caught, don't panic */
if (errno == EINTR) {
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 8f7f59e..881512c 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -1453,7 +1453,7 @@
if (tv > 0) {
log1("waiting on select %u seconds", tv);
timestamp_before_wait = (unsigned)monotonic_sec();
- retval = poll(pfds, 2, tv * 1000);
+ retval = poll(pfds, 2, tv < INT_MAX/1000 ? tv * 1000 : INT_MAX);
if (retval < 0) {
/* EINTR? A signal was caught, don't panic */
if (errno == EINTR) {