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authorDenys Vlasenko2017-09-29 14:09:02 +0200
committerDenys Vlasenko2017-09-29 14:22:43 +0200
commit2b9acc60c0468379cd24d13bc9e3f3e50761c0c9 (patch)
treecc210e6cc6c63605bd7100ec3f516b62416b1f4e /networking/udhcp/d6_dhcpc.c
parent0c4dbd481aedb5d22c1048e7f7eb547a3b5e50a5 (diff)
downloadbusybox-2b9acc60c0468379cd24d13bc9e3f3e50761c0c9.zip
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udhcpc[6]: initialize entire sockaddr_ll
I see random field values like sll_hatype=0x267 when I strace. They seem to not matter, but just in case they sometimes do, let's at least have deterministic values (via memset(0)). function old new delta change_listen_mode 308 322 +14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/udhcp/d6_dhcpc.c')
-rw-r--r--networking/udhcp/d6_dhcpc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index 714555f..d4bb350 100644
--- a/networking/udhcp/d6_dhcpc.c
+++ b/networking/udhcp/d6_dhcpc.c
@@ -881,9 +881,14 @@ static int d6_raw_socket(int ifindex)
fd = xsocket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IPV6));
log2("got raw socket fd %d", fd);
+ memset(&sock, 0, sizeof(sock)); /* let's be deterministic */
sock.sll_family = AF_PACKET;
sock.sll_protocol = htons(ETH_P_IPV6);
sock.sll_ifindex = ifindex;
+ /*sock.sll_hatype = ARPHRD_???;*/
+ /*sock.sll_pkttype = PACKET_???;*/
+ /*sock.sll_halen = ???;*/
+ /*sock.sll_addr[8] = ???;*/
xbind(fd, (struct sockaddr *) &sock, sizeof(sock));
#if 0