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ntp: check for missing source address after recvmsg()

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This commit is contained in:
Miroslav Lichvar
2016-09-26 12:21:07 +02:00
parent 2577e20f09
commit d36c522453
1 changed files with 7 additions and 2 deletions
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5
ntp_io.c
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@@ -565,8 +565,13 @@ process_receive(struct msghdr *hdr, int length, int sock_fd)
return; return;
} }
if (hdr->msg_namelen >= sizeof (((struct sockaddr *)hdr->msg_name)->sa_family)) {
UTI_SockaddrToIPAndPort((struct sockaddr *)hdr->msg_name, UTI_SockaddrToIPAndPort((struct sockaddr *)hdr->msg_name,
&remote_addr.ip_addr, &remote_addr.port); &remote_addr.ip_addr, &remote_addr.port);
} else {
remote_addr.ip_addr.family = IPADDR_UNSPEC;
remote_addr.port = 0;
}
local_addr.ip_addr.family = IPADDR_UNSPEC; local_addr.ip_addr.family = IPADDR_UNSPEC;
local_addr.sock_fd = sock_fd; local_addr.sock_fd = sock_fd;