From ca5a7ce28f4e5a0537b8d1dabd9fdb9ef4417556 Mon Sep 17 00:00:00 2001
From: gerald <gerald@f5534014-38df-0310-8fa8-9805f1628bb7>
Date: Fri, 18 Dec 2009 20:36:36 +0000
Subject: Use the WinPcap version of pcap_datalink_val_to_description if it's
 present.  Add an entry for DLT_PPI in case it's not.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@31316 f5534014-38df-0310-8fa8-9805f1628bb7
---
 capture-wpcap.c | 36 ++++++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

(limited to 'capture-wpcap.c')

diff --git a/capture-wpcap.c b/capture-wpcap.c
index 584e989cdf..4d5deb7f0e 100644
--- a/capture-wpcap.c
+++ b/capture-wpcap.c
@@ -79,6 +79,9 @@ static int (*p_pcap_datalink_name_to_val) (const char *);
 #ifdef HAVE_PCAP_DATALINK_VAL_TO_NAME
 static const char *(*p_pcap_datalink_val_to_name) (int);
 #endif
+#ifdef HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION
+static const char *(*p_pcap_datalink_val_to_description) (int);
+#endif
 #ifdef HAVE_PCAP_BREAKLOOP
 static void    (*p_pcap_breakloop) (pcap_t *);
 #endif
@@ -155,6 +158,9 @@ load_wpcap(void)
 #ifdef HAVE_PCAP_DATALINK_VAL_TO_NAME
 		SYM(pcap_datalink_val_to_name, TRUE),
 #endif
+#ifdef HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION
+		SYM(pcap_datalink_val_to_description, TRUE),
+#endif
 #ifdef HAVE_PCAP_BREAKLOOP
 		/*
 		 * We don't try to work around the lack of this at
@@ -371,7 +377,7 @@ pcap_freealldevs(pcap_if_t *a)
 }
 #endif
 
-#if defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || defined(HAVE_PCAP_DATALINK_VAL_TO_NAME)
+#if defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) || defined(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION)
 /*
  * Table of DLT_ types, names, and descriptions, for use if the version
  * of WinPcap we have installed lacks "pcap_datalink_name_to_val()"
@@ -464,10 +470,13 @@ static struct dlt_choice dlt_choices[] = {
 #endif
 #ifdef DLT_HDLC
 	DLT_CHOICE(DLT_HDLC, "Cisco HDLC"),
+#endif
+#ifdef DLT_PPI
+	DLT_CHOICE(DLT_PPI, "Per-Packet Information"),
 #endif
 	DLT_CHOICE_SENTINEL
 };
-#endif /* defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) */
+#endif /* defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) || defined(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION */
 
 #ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL
 int
@@ -544,6 +553,29 @@ pcap_datalink_val_to_name(int dlt)
 }
 #endif
 
+#ifdef HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION
+const char *
+pcap_datalink_val_to_description(int dlt)
+{
+	int i;
+
+	g_assert(has_wpcap);
+
+	if (p_pcap_datalink_val_to_description != NULL)
+		return p_pcap_datalink_val_to_description(dlt);
+	else {
+		/*
+		 * We don't have it in WinPcap; do it ourselves.
+		 */
+		for (i = 0; dlt_choices[i].name != NULL; i++) {
+			if (dlt_choices[i].dlt == dlt)
+				return (dlt_choices[i].description);
+		}
+		return NULL;
+	}
+}
+#endif
+
 #ifdef HAVE_PCAP_BREAKLOOP
 void pcap_breakloop(pcap_t *a)
 {
-- 
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