netdev - [PATCH iproute2] ss: fix compilation under glibc

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Message-Id: <20190220144151.17943-1-patrickdepinguin@gmail.com>
Date:   Wed, 20 Feb 2019 15:41:51 +0100
From:   Thomas De Schampheleire <patrickdepinguin@...il.com>
To:     netdev@...r.kernel.org
Cc:     Thomas De Schampheleire <thomas.de_schampheleire@...ia.com>
Subject: [PATCH iproute2] ss: fix compilation under glibc < 2.18

From: Thomas De Schampheleire <thomas.de_schampheleire@...ia.com>

Commit c759116a0b2b6da8df9687b0a40ac69050132c77 introduced support for
AF_VSOCK. This define is only provided since glibc version 2.18, so
compilation fails when using older toolchains.

Provide the necessary definitions if needed.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@...ia.com>
---
 misc/ss.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/misc/ss.c b/misc/ss.c
index 9e821faf..766fdc5f 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -51,6 +51,14 @@
 #include <linux/tipc_netlink.h>
 #include <linux/tipc_sockets_diag.h>
 
+/* AF_VSOCK/PF_VSOCK is only provided since glibc 2.18 */
+#ifndef PF_VSOCK
+#define PF_VSOCK 40
+#endif
+#ifndef AF_VSOCK
+#define AF_VSOCK PF_VSOCK
+#endif
+
 #define MAGIC_SEQ 123456
 #define BUF_CHUNK (1024 * 1024)
 #define LEN_ALIGN(x) (((x) + 1) & ~1)
-- 
2.19.2