[src/trunk]: src/external/apache2/mDNSResponder/dist/mDNSPosix zero out socke...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/59d21ec040ac
branches:  trunk
changeset: 359796:59d21ec040ac
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Feb 25 19:22:41 2018 +0000

description:
zero out socket structures before bind.

diffstat:

 external/apache2/mDNSResponder/dist/mDNSPosix/mDNSPosix.c |  12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diffs (36 lines):

diff -r a0e7808ad156 -r 59d21ec040ac external/apache2/mDNSResponder/dist/mDNSPosix/mDNSPosix.c
--- a/external/apache2/mDNSResponder/dist/mDNSPosix/mDNSPosix.c Sun Feb 25 18:55:23 2018 +0000
+++ b/external/apache2/mDNSResponder/dist/mDNSPosix/mDNSPosix.c Sun Feb 25 19:22:41 2018 +0000
@@ -745,6 +745,10 @@
         // And start listening for packets
         if (err == 0)
         {
+           mDNSPlatformMemZero(&bindAddr, sizeof(bindAddr));
+#ifndef NOT_HAVE_SA_LEN
+           bindAddr.sin_len         = sizeof(bindAddr);
+#endif
             bindAddr.sin_family      = AF_INET;
             bindAddr.sin_port        = port.NotAnInteger;
             bindAddr.sin_addr.s_addr = INADDR_ANY; // Want to receive multicasts AND unicasts on this socket
@@ -1054,6 +1058,9 @@
 
     /* Subscribe the socket to Link & IP addr notifications. */
     mDNSPlatformMemZero(&snl, sizeof snl);
+#ifndef NOT_HAVE_SA_LEN
+    snl.nl_len    = sizeof(snl);
+#endif
     snl.nl_family = AF_NETLINK;
     snl.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR;
     ret = bind(sock, (struct sockaddr *) &snl, sizeof snl);
@@ -1266,6 +1273,11 @@
     int err;
     int s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
     struct sockaddr_in s5353;
+
+    mDNSPlatformMemZero(&s5353, sizeof(s5353));
+#ifndef NOT_HAVE_SA_LEN
+    s5353.sin_len         = sizeof(s5353);
+#endif
     s5353.sin_family      = AF_INET;
     s5353.sin_port        = MulticastDNSPort.NotAnInteger;
     s5353.sin_addr.s_addr = 0;