1 files changed, 7 insertions, 3 deletions

diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c
index b43e52e96..fad2283c3 100644
--- a/networking/udhcp/arpping.c
+++ b/networking/udhcp/arpping.c
@@ -39,7 +39,8 @@ int FAST_FUNC arpping(uint32_t test_nip,
                 const uint8_t *safe_mac,
                 uint32_t from_ip,
                 uint8_t *from_mac,
-                const char *interface)
+                const char *interface,
+                unsigned timeo)
 {
         int timeout_ms;
         struct pollfd pfd[1];
@@ -48,6 +49,9 @@ int FAST_FUNC arpping(uint32_t test_nip,
         struct sockaddr addr;   /* for interface name */
         struct arpMsg arp;
 
+        if (!timeo)
+                return 1;
+
         s = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP));
         if (s == -1) {
                 bb_perror_msg(bb_msg_can_not_create_raw_socket);
@@ -83,7 +87,7 @@ int FAST_FUNC arpping(uint32_t test_nip,
         }
 
         /* wait for arp reply, and check it */
-        timeout_ms = 2000;
+        timeout_ms = (int)timeo;
         do {
                 typedef uint32_t aliased_uint32_t FIX_ALIASING;
                 int r;
@@ -124,7 +128,7 @@ int FAST_FUNC arpping(uint32_t test_nip,
                  * this is more under/overflow-resistant
                  * (people did see overflows here when system time jumps):
                  */
-        } while ((unsigned)timeout_ms <= 2000);
+        } while ((unsigned)timeout_ms <= timeo);
 
  ret:
         close(s);