From 6feba4cd81e076f8f3edd4195d4ffa040478fe74 Mon Sep 17 00:00:00 2001
From: nia <nia@NetBSD.org>
Date: Sat, 6 Aug 2022 10:49:40 +0200
Subject: [PATCH] NetBSD support: Implement wl_os_socket_peercred

Signed-off-by: Nia Alarie <nia@NetBSD.org>
---
 src/wayland-os.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/wayland-os.c b/src/wayland-os.c
index a9066cae..c76b5090 100644
--- a/src/wayland-os.c
+++ b/src/wayland-os.c
@@ -100,7 +100,25 @@ wl_os_socket_peercred(int sockfd, uid_t *uid, gid_t *gid, pid_t *pid)
 #endif
 	return 0;
 }
-#elif defined(SO_PEERCRED)
+#elif defined(LOCAL_CREDS) /* NetBSD */
+#ifndef SOL_LOCAL /* Before NetBSD 10.0, SOL_LOCAL isn't defined */
+#define SOL_LOCAL (0)
+#endif
+int
+wl_os_socket_peercred(int sockfd, uid_t *uid, gid_t *gid, pid_t *pid)
+{
+	socklen_t len;
+	struct sockcred ucred;
+
+	len = sizeof(ucred);
+	if (getsockopt(sockfd, SOL_LOCAL, LOCAL_CREDS, &ucred, &len) < 0)
+		return -1;
+	*uid = ucred.sc_uid;
+	*gid = ucred.sc_gid;
+	*pid = ucred.sc_pid;
+	return 0;
+}
+#elif defined(SO_PEERCRED) /* Linux */
 int
 wl_os_socket_peercred(int sockfd, uid_t *uid, gid_t *gid, pid_t *pid)
 {