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--- ./src/wifipcap/wifipcap.cpp.orig 2013-11-18 02:20:51.000000000 +0000
+++ ./src/wifipcap/wifipcap.cpp 2013-11-22 21:47:50.000000000 +0000
@@ -2213,6 +2213,13 @@
const char *Wifipcap::SetFilter(const char *filter)
{
struct bpf_program fp;
+/*
+ * libpcap from FreeBSD 8 does not have PCAP_NETMASK_UNKNOWN
+ * According to pcap_compile(3) a value of 0 can be supplied
+ */
+#ifndef PCAP_NETMASK_UNKNOWN
+#define PCAP_NETMASK_UNKNOWN 0
+#endif
bpf_u_int32 netp=PCAP_NETMASK_UNKNOWN;
if(pcap_compile(descr,&fp,(char *)filter,0,netp) == -1) {
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