-#ifndef HAVE_STRUCT_CRED
-
-#define current_cred() (current)
-
-#define current_cred_xxx(xxx) \
-({ \
- current->xxx; \
-})
-
-#ifndef HAVE_CRED_WRAPPERS
-
-#define current_uid() (current_cred_xxx(uid))
-#define current_gid() (current_cred_xxx(gid))
-#define current_euid() (current_cred_xxx(euid))
-#define current_egid() (current_cred_xxx(egid))
-#define current_suid() (current_cred_xxx(suid))
-#define current_sgid() (current_cred_xxx(sgid))
-#define current_fsuid() (current_cred_xxx(fsuid))
-#define current_fsgid() (current_cred_xxx(fsgid))
-#define current_cap() (current_cred_xxx(cap_effective))
-
-#endif /* HAVE_LINUX_CRED_H */
-
-#define current_user() (current_cred_xxx(user))
-#define current_user_ns() (current_cred_xxx(user)->user_ns)
-#define current_security() (current_cred_xxx(security))
-
-#define cred task_struct
-
-#define prepare_creds() (current)
-#define commit_creds(a)
+/*
+ * Macros to access common characteristics of "current" UNIX process.
+ */
+#define current_pid() (current->pid)
+#define current_comm() (current->comm)