libnfq: mark functions as extern C

mark functions as extern C

This is needed when #included from C++.

Reported-by: Simon <turner25@gmail.com>
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/include/libnetfilter_queue/libipq.h b/include/libnetfilter_queue/libipq.h
index c33f7e4..0f0df22 100644 (file)
--- a/include/libnetfilter_queue/libipq.h
+++ b/include/libnetfilter_queue/libipq.h
@@ -50,6 +50,10 @@ typedef unsigned long ipq_id_t;
 #define MSG_TRUNC 0x20
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct ipq_handle
 {
        struct nfq_handle *nfqnlh;
@@ -84,5 +88,9 @@ int ipq_ctl(const struct ipq_handle *h, int request, ...);
 char *ipq_errstr(void);
 void ipq_perror(const char *s);
 
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
 #endif /* _LIBIPQ_H */
 

diff --git a/include/libnetfilter_queue/libnetfilter_queue.h b/include/libnetfilter_queue/libnetfilter_queue.h
index 6695c3d..1a72c51 100644 (file)
--- a/include/libnetfilter_queue/libnetfilter_queue.h
+++ b/include/libnetfilter_queue/libnetfilter_queue.h
@@ -18,6 +18,10 @@
 
 #include <libnetfilter_queue/linux_nfnetlink_queue.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct nfq_handle;
 struct nfq_q_handle;
 struct nfq_data;
@@ -94,6 +98,8 @@ extern struct nfqnl_msg_packet_hw *nfq_get_packet_hw(struct nfq_data *nfad);
 /* return -1 if problem, length otherwise */
 extern int nfq_get_payload(struct nfq_data *nfad, char **data);
 
-
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
 
 #endif /* __LIBNFQNETLINK_H */