git.openwrt.org Git - openwrt/staging/ldir.git/blob

   1 From 7673013d2323834b555052ddbd87381bb5cd7bac Mon Sep 17 00:00:00 2001
   2 From: Simon Kelley <simon@thekelleys.org.uk>
   3 Date: Thu, 28 Mar 2019 22:04:10 +0000
   4 Subject: [PATCH 49/57] Apply fix from c6cc455dd191fbea56ee14a0ef88a7d655a6fe9a
   5  in DHCP code.
   6
   7 Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
   8 ---
   9  src/dhcp.c | 3 ++-
  10  1 file changed, 2 insertions(+), 1 deletion(-)
  11
  12 --- a/src/dhcp.c
  13 +++ b/src/dhcp.c
  14 @@ -401,7 +401,8 @@ void dhcp_packet(time_t now, int pxe_fd)
  15        pkt = (struct in_pktinfo *)CMSG_DATA(cmptr);
  16        pkt->ipi_ifindex = rcvd_iface_index;
  17        pkt->ipi_spec_dst.s_addr = 0;
  18 -      msg.msg_controllen = cmptr->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo));
  19 +      msg.msg_controllen = CMSG_SPACE(sizeof(struct in_pktinfo));
  20 +      cmptr->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo));
  21        cmptr->cmsg_level = IPPROTO_IP;
  22        cmptr->cmsg_type = IP_PKTINFO;
  23