From: Geliang Tang <tanggeliang@kylinos.cn>

Introduce -i option to enable TCP_INQ testing. This prepares for
consolidating TCP_INQ tests into a single binary by adding the necessary
command-line interface.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/net/mptcp/mptcp_sockopt.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
index d6c1d746f12e..9558c68a62e7 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
@@ -30,6 +30,7 @@
 static int pf = AF_INET;
 static int proto_tx = IPPROTO_MPTCP;
 static int proto_rx = IPPROTO_MPTCP;
+static bool inq;
 
 #ifndef IPPROTO_MPTCP
 #define IPPROTO_MPTCP 262
@@ -138,7 +139,7 @@ static void die_perror(const char *msg)
 
 static void die_usage(int r)
 {
-	fprintf(stderr, "Usage: mptcp_sockopt [-6] [ -t tcp|mptcp ] [ -r tcp|mptcp]\n");
+	fprintf(stderr, "Usage: mptcp_sockopt [-6] [ -t tcp|mptcp ] [ -r tcp|mptcp] [ -i]\n");
 	exit(r);
 }
 
@@ -277,7 +278,7 @@ static void parse_opts(int argc, char **argv)
 {
 	int c;
 
-	while ((c = getopt(argc, argv, "h6t:r:")) != -1) {
+	while ((c = getopt(argc, argv, "h6t:r:i")) != -1) {
 		switch (c) {
 		case 'h':
 			die_usage(0);
@@ -291,6 +292,9 @@ static void parse_opts(int argc, char **argv)
 		case 'r':
 			proto_rx = protostr_to_num(optarg);
 			break;
+		case 'i':
+			inq = true;
+			break;
 		default:
 			die_usage(1);
 			break;
-- 
2.48.1