From 8774fccff32c8f5ed5527fa4e349ee534d34174c Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Sun, 8 Oct 2017 16:24:37 +0200
Subject: [PATCH] wg: try again if dump is interrupted

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 src/ipc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/ipc.c b/src/ipc.c
index 5625526..a460d28 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -855,11 +855,12 @@ static int kernel_get_device(struct wgdevice **dev, const char *interface)
 	struct mnlg_socket *nlg;
 	struct get_device_ctx ctx = { 0 };
 
+try_again:
 	*dev = ctx.device = calloc(1, sizeof(struct wgdevice));
 	if (!*dev)
 		return -errno;
 
-	nlg= mnlg_socket_open(WG_GENL_NAME, WG_GENL_VERSION);
+	nlg = mnlg_socket_open(WG_GENL_NAME, WG_GENL_VERSION);
 	if (!nlg) {
 		free_wgdevice(*dev);
 		*dev = NULL;
@@ -884,6 +885,8 @@ out:
 		mnlg_socket_close(nlg);
 	if (ret) {
 		free_wgdevice(*dev);
+		if (ret == -EINTR)
+			goto try_again;
 		*dev = NULL;
 	}
 	errno = -ret;