From: Guy Harris <guy@alum.mit.edu>
Date: Sun, 24 Jun 2018 19:14:45 +0000 (-0700)
Subject: Make sure DLT_ updates include LINKTYPE_ updates.
X-Git-Tag: libpcap-1.9-bp~2
X-Git-Url: https://git.tcpdump.org/libpcap/commitdiff_plain/3367fed4b1ff7341966428e5e59674475729cc1c

Make sure DLT_ updates include LINKTYPE_ updates.

From a suggestion by mcr.
---

diff --git a/pcap-common.c b/pcap-common.c
index 7f2b81a3..7561fb3d 100644
--- a/pcap-common.c
+++ b/pcap-common.c
@@ -1083,6 +1083,15 @@
 
 #define LINKTYPE_MATCHING_MAX	275		/* highest value in the "matching" range */
 
+/*
+ * The DLT_ and LINKTYPE_ values in the "matching" range should be the
+ * same, so DLT_MATCHING_MAX and LINKTYPE_MATCHING_MAX should be the
+ * same.
+ */
+#if LINKTYPE_MATCHING_MAX != DLT_MATCHING_MAX
+#error The LINKTYPE_ matching range doesn't match the DLT_ matching range
+#endif
+
 static struct linktype_map {
 	int	dlt;
 	int	linktype;