fix for g++ complaining about different linking schemes:

  /usr/include/net/bpf.h:408: previous declaration of `u_int bpf_filter(bpf_insn*, u_char*, unsigned int, unsigned int)' with C++ linkage
  /usr/include/pcap.h:201: conflicts with new declaration with C linkage
  /usr/include/net/bpf.h:407: previous declaration of `int bpf_validate(bpf_insn*, int)' with C++ linkage
  /usr/include/pcap.h:202: conflicts with new declaration with C linkage

2 files changed, 10 insertions, 2 deletions

diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
index 976ceeb..a3f8280 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
@@ -1,33 +1,37 @@
 /* $Id$ */
 
 #ifndef CARDMODE_HH
 #define CARDMODE_HH
 
 #include <string.h>
 #include <stdlib.h>
-#include <pcap.h>  
 #include <errno.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+
+extern "C"
+{
 #include <net/bpf.h>
+#include <pcap.h>  
+}
 
 #include "../../libwellenreiter/source/log.hh"
 
 /* Defines, used for the card setup */
 #define   DEFAULT_PATH       "/proc/driver/aironet/%s/Config"
         #define   CARD_TYPE_CISCO1
         #define   CARD_TYPE_NG        2
         #define   CARD_TYPE_HOSTAP3
 
 /* only for now, until we have the daemon running */
 /*the config file should provide these information */
 #define   CARD_TYPE              CARD_TYPE_CISCO
         #define   SBIN_PATH         "/sbin/ifconfig %s promisc up"
 #define   WLANCTL_PATH           "/sbin/wlanctl-ng"
 
 /* Prototypes */
 int card_into_monitormode (pcap_t **, char *, int);
 int card_set_promisc_up (const char *);
 
 #endif /* CARDMODE_HH */
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh b/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh
index 60cdc43..c13461a 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh
@@ -1,62 +1,66 @@
 /* $Id$ */
 
 #ifndef SNIFF_HH
 #define SNIFF_HH
 
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <pcap.h>  
 #include <errno.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+
+extern "C"
+{
 #include <net/bpf.h>
+#include <pcap.h>  
+}
 
 #define   NONBROADCASTING "non-broadcasting"
 
 /* holds all the interresting data */
 struct packetinfo
 {
   int isvalid;
   int pktlen;
   int fctype;
   int fcsubtype;
   int fc_wep;
   int cap_WEP;
   int cap_IBSS;
   int cap_ESS;
   int channel;
   char bssid[sizeof("00:00:00:00:00:00") + 1];
   char desthwaddr[sizeof("00:00:00:00:00:00") + 1];
   char sndhwaddr[sizeof("00:00:00:00:00:00") + 1];
   char ssid[128];
   int ssid_len;
 };
 
 void process_packets(const struct pcap_pkthdr* pkthdr,const u_char* packet, char *, int);
 int decode_80211b_hdr(const u_char *p,struct packetinfo *ppinfo);
 void etheraddr_string(register const u_char *ep,char * text);
 int handle_beacon(u_int16_t fc, const u_char *p,struct packetinfo *ppinfo);
 
 int GetHeaderLength(u_int16_t fc);
 
 /*
  * True if  "l" bytes of "var" were captured.
  *
  * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large
  * that "snapend - (l)" underflows.
  *
  * The check is for <= rather than < because "l" might be 0.
  */
 #define TTEST2(var, l) (snapend - (l) <= snapend && \
                         (const u_char *)&(var) <= snapend - (l))
 
 /* True if "var" was captured */
 #define TTEST(var) TTEST2(var, sizeof(var))
 
 /* Bail if "l" bytes of "var" were not captured */
 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
 
 /* Bail if "var" was not captured */
 #define TCHECK(var) TCHECK2(var, sizeof(var))