Limit size of IPv4 DHCP reply.
In other words, remove zero padding after end option (0xff).
Signed-off-by: Dmitry Ivanov <d...@ubnt.com>
---
src/dhcpv4.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/dhcpv4.c b/src/dhcpv4.c
index a657e13..c8014ea 100644
--- a/src/dhcpv4.c
+++ b/src/dhcpv4.c
@@ -497,7 +497,7 @@ static void handle_dhcpv4(void *addr, void *data, size_t
len,
inet_ntoa(dest.sin_addr));
}
- sendto(sock, &reply, sizeof(reply), MSG_DONTWAIT,
+ sendto(sock, &reply, cookie - (uint8_t*) &reply - 1, MSG_DONTWAIT,
(struct sockaddr*)&dest, sizeof(dest));
}
--
2.1.4
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