From: Guy Harris <guy@alum.mit.edu>
Date: Tue, 1 May 2018 07:09:22 +0000 (-0700)
Subject: Or maybe you'll get ENOTTY for an invalid ioctl.
X-Git-Tag: libpcap-1.9-bp~62
X-Git-Url: https://git.tcpdump.org/libpcap/commitdiff_plain/d73a7d5fe06fb603176d7e3da85aa9b03d7d8c8b

Or maybe you'll get ENOTTY for an invalid ioctl.

*BSD: a family of OSes divided by a common API.
---

diff --git a/pcap-bpf.c b/pcap-bpf.c
index 65dc9ed2..c160e5c0 100644
--- a/pcap-bpf.c
+++ b/pcap-bpf.c
@@ -2747,7 +2747,7 @@ get_if_flags(const char *name, bpf_u_int32 *flags, char *errbuf)
 	memset(&req, 0, sizeof(req));
 	strncpy(req.ifm_name, name, sizeof(req.ifm_name));
 	if (ioctl(sock, SIOCGIFMEDIA, &req) < 0) {
-		if (errno == EOPNOTSUPP || errno == EINVAL) {
+		if (errno == EOPNOTSUPP || errno == EINVAL || errno == ENOTTY) {
 			/*
 			 * Not supported, so we can't provide any
 			 * additional information.  Assume that