socket-util: Use portable solution for setting Unix socket permissions.

Requested-by: Jesse Gross <jesse@nicira.com>

diff --git a/lib/socket-util.c b/lib/socket-util.c
index 7e4b8be84be8a96c074d581b8d3ee13d41ba51fd..24e8f8101df2203b4c958d328f3819c6020fdec3 100644 (file)
--- a/lib/socket-util.c
+++ b/lib/socket-util.c
@@ -306,18 +306,11 @@ make_sockaddr_un(const char *name, struct sockaddr_un *un, socklen_t *un_len,
 static int
 bind_unix_socket(int fd, struct sockaddr *sun, socklen_t sun_len)
 {
-#ifdef __linux__
-    /* On Linux, calling fchmod() *before* bind() sets permissions for the file
-     * about to be created.  Calling fchmod() *after* bind has no effect on the
-     * file that was created.) */
-    return fchmod(fd, 0700) || bind(fd, sun, sun_len) ? errno : 0;
-#else
     /* According to _Unix Network Programming_, umask should affect bind(). */
     mode_t old_umask = umask(0077);
     int error = bind(fd, sun, sun_len) ? errno : 0;
     umask(old_umask);
     return error;
-#endif
 }
 
 /* Creates a Unix domain socket in the given 'style' (either SOCK_DGRAM or