tree-wide: port things over to FORMAT_PROC_FD_PATH()

2021-08-19 09:19:27 +02:00
parent 48a01cd934
commit ddb6eeafe2
15 changed files with 52 additions and 122 deletions
@@ -89,9 +89,7 @@ int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int
                /* Can't setns to your own userns, since then you could escalate from non-root to root in
                 * your own namespace, so check if namespaces are equal before attempting to enter. */

-                char userns_fd_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
-                xsprintf(userns_fd_path, "/proc/self/fd/%d", userns_fd);
-                r = files_same(userns_fd_path, "/proc/self/ns/user", 0);
+                r = files_same(FORMAT_PROC_FD_PATH(userns_fd), "/proc/self/ns/user", 0);
                if (r < 0)
                        return r;
                if (r)