wpcap: Implement pcap_geterr.

dlls/wpcap/wpcap.c

@@ -42,6 +42,12 @@ void CDECL wine_pcap_freealldevs(pcap_if_t *alldevs)
     pcap_freealldevs(alldevs);
 }
 
+char* CDECL wine_pcap_geterr(pcap_t *p)
+{
+    TRACE("(%p)\n", p);
+    return pcap_geterr(p);
+}
+
 const char* CDECL wine_pcap_lib_version(void)
 {
     const char* ret = pcap_lib_version();

dlls/wpcap/wpcap.spec

@@ -29,7 +29,7 @@
 @ cdecl pcap_freealldevs(ptr) wine_pcap_freealldevs
 @ stub pcap_freecode
 @ stub pcap_get_airpcap_handle
-@ stub pcap_geterr
+@ cdecl pcap_geterr(ptr) wine_pcap_geterr
 @ stub pcap_getevent
 @ stub pcap_getnonblock
 @ stub pcap_is_swapped