Use correct reply size in DNS packets

11 years ago · a8d711b832
1 changed files with 2 additions and 0 deletions
--- a/dns.c
+++ b/dns.c
@ -430,8 +430,10 @@ int dnsserver(dns_opt_t *opt) {
				@@ -430,8 +430,10 @@ int dnsserver(dns_opt_t *opt) {
      if (hdr->cmsg_level == IPPROTO_IP && hdr->cmsg_type == DSTADDR_SOCKOPT)
      {
        msg.msg_iov[0].iov_base = outbuf;
+        msg.msg_iov[0].iov_len = ret;
        sendmsg(listenSocket, &msg, 0);
        msg.msg_iov[0].iov_base = inbuf;
+        msg.msg_iov[0].iov_len = sizeof(inbuf);
        handled = true;
      }
    }