[PATCH v3 04/26] unix-socket: make unlink() optional in unix_stream_listen()

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 credential-cache--daemon.c | 2 +-
 unix-socket.c              | 5 +++--
 unix-socket.h              | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/credential-cache--daemon.c b/credential-cache--daemon.c
index 390f194..1b995a9 100644
--- a/credential-cache--daemon.c
+++ b/credential-cache--daemon.c
@@ -207,7 +207,7 @@ static void serve_cache(const char *socket_path)
 {
 	int fd;
 
-	fd = unix_stream_listen(socket_path);
+	fd = unix_stream_listen(socket_path, 1);
 	if (fd < 0)
 		die_errno("unable to bind to '%s'", socket_path);
 
diff --git a/unix-socket.c b/unix-socket.c
index 01f119f..2be1af6 100644
--- a/unix-socket.c
+++ b/unix-socket.c
@@ -93,7 +93,7 @@ fail:
 	return -1;
 }
 
-int unix_stream_listen(const char *path)
+int unix_stream_listen(const char *path, int replace)
 {
 	int fd, saved_errno;
 	struct sockaddr_un sa;
@@ -103,7 +103,8 @@ int unix_stream_listen(const char *path)
 		return -1;
 	fd = unix_stream_socket();
 
-	unlink(path);
+	if (replace)
+		unlink(path);
 	if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0)
 		goto fail;
 
diff --git a/unix-socket.h b/unix-socket.h
index e271aee..18ee290 100644
--- a/unix-socket.h
+++ b/unix-socket.h
@@ -2,6 +2,6 @@
 #define UNIX_SOCKET_H
 
 int unix_stream_connect(const char *path);
-int unix_stream_listen(const char *path);
+int unix_stream_listen(const char *path, int replace);
 
 #endif /* UNIX_SOCKET_H */
-- 
1.8.5.2.240.g8478abd