Move a routine into dumpcap - it's not used outside dumpcap.

svn path=/trunk/; revision=32042

capture-pcap-util.c

@@ -560,26 +560,6 @@ free_pcap_linktype_list(GList *linktype_list)
 	g_list_free(linktype_list);
 }
 
-/* Set the data link type on a pcap. */
-const char *
-set_pcap_linktype(pcap_t *pch, char *devname
-#ifdef HAVE_PCAP_SET_DATALINK
-	_U_
-#endif
-	, int dlt)
-{
-#ifdef HAVE_PCAP_SET_DATALINK
-	if (pcap_set_datalink(pch, dlt) == 0)
-		return NULL;	/* no error */
-	return pcap_geterr(pch);
-#else
-	/* Let them set it to the type it is; reject any other request. */
-	if (get_pcap_linktype(pch, devname) == dlt)
-		return NULL;	/* no error */
-	return "That DLT isn't one of the DLTs supported by this device";
-#endif
-}
-
 const char *
 linktype_val_to_name(int dlt)
 {

capture-pcap-util.h

@@ -96,7 +96,6 @@ void free_pcap_linktype_list(GList *linktype_list);
 /* get/set the link type of an interface */
 /* (only used in capture_loop.c / capture-pcap-util.c) */
 int get_pcap_linktype(pcap_t *pch, const char *devname);
-const char *set_pcap_linktype(pcap_t *pch, char *devname, int dlt);
 
 
 const char *linktype_val_to_name(int dlt);

dumpcap.c

@@ -671,6 +671,26 @@ relinquish_all_capabilities()
 
 #endif /* HAVE_LIBCAP */
 
+/* Set the data link type on a pcap. */
+static const char *
+set_pcap_linktype(pcap_t *pch, char *devname
+#ifdef HAVE_PCAP_SET_DATALINK
+	_U_
+#endif
+	, int dlt)
+{
+#ifdef HAVE_PCAP_SET_DATALINK
+	if (pcap_set_datalink(pch, dlt) == 0)
+		return NULL;	/* no error */
+	return pcap_geterr(pch);
+#else
+	/* Let them set it to the type it is; reject any other request. */
+	if (get_pcap_linktype(pch, devname) == dlt)
+		return NULL;	/* no error */
+	return "That DLT isn't one of the DLTs supported by this device";
+#endif
+}
+
 /* Take care of byte order in the libpcap headers read from pipes.
  * (function taken from wiretap/libpcap.c) */
 static void