X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/d5b1a160a306a4e7946039ae91faf9b5416691ab..4ec25d224e9eba0a9184f4a8cc8510a62d58d8ef:/tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index d6b8e600..d31872f7 100644
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -1096,7 +1096,7 @@ parse_interface_number(const char *device)
 			/*
 			 * No, it's not an ordinal.
 			 */
-			error("Invalid adapter index");
+			error("Invalid adapter index %s", device);
 		}
 		return (devnum);
 	} else {
@@ -1171,8 +1171,11 @@ _U_
 	for (i = 0, dev = devlist; i < devnum-1 && dev != NULL;
 	    i++, dev = dev->next)
 		;
-	if (dev == NULL)
-		error("Invalid adapter index");
+	if (dev == NULL) {
+		pcap_freealldevs(devlist);
+		error("Invalid adapter index %ld: only %ld interfaces found",
+		    devnum, i);
+	}
 	device = strdup(dev->name);
 	pcap_freealldevs(devlist);
 	return (device);