From 7f87f8ff28ec8c4be8aa094a4f74da55e91073d3 Mon Sep 17 00:00:00 2001
From: Rabit <home@rabits.org>
Date: Wed, 17 Feb 2021 12:09:51 -0800
Subject: [PATCH] Support compile with clang on BSD

A couple of changes to make the code compile on BSD systems with clang
---
 src/server.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/server.c b/src/server.c
index 66e57727f..f51e725fa 100644
--- a/src/server.c
+++ b/src/server.c
@@ -211,10 +211,11 @@ int dqlite_node_set_bind_address(dqlite_node *t, const char *address)
 		len += sizeof(sa_family_t);
 		addr = (struct sockaddr *)&addr_un;
 	}
-	fd = socket(domain, SOCK_STREAM | SOCK_CLOEXEC, 0);
+	fd = socket(domain, SOCK_STREAM, 0);
 	if (fd == -1) {
 		return DQLITE_ERROR;
 	}
+	fcntl(fd, O_CLOEXEC);
 	if (domain == AF_INET) {
 		int reuse = 1;
 		rv = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
@@ -431,10 +432,20 @@ static void listenCb(uv_stream_t *listener, int status)
 
 	/* We accept unix socket connections only from the same process. */
 	if (listener->type == UV_NAMED_PIPE) {
+		int fd = stream->io_watcher.fd;
+#if defined(__FreeBSD__) || defined(__APPLE__)
+		pid_t pid = -1;
+		socklen_t len = sizeof(pid);
+		rv = getsockopt(fd, SOL_SOCKET, LOCAL_PEERPID, &pid, &len);
+		if (rv != 0) {
+			goto err;
+		}
+		if (pid != getpid()) {
+			goto err;
+		}
+#else
 		struct ucred cred;
 		socklen_t len;
-		int fd;
-		fd = stream->io_watcher.fd;
 		len = sizeof cred;
 		rv = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len);
 		if (rv != 0) {
@@ -443,6 +454,7 @@ static void listenCb(uv_stream_t *listener, int status)
 		if (cred.pid != getpid()) {
 			goto err;
 		}
+#endif
 	}
 
 	conn = sqlite3_malloc(sizeof *conn);