From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 15 Jul 2019 11:32:03 +0000 (+0200)
Subject: errno: add new ERRNO_IS_NOT_SUPPORTED() helper
X-Git-Tag: v244-rc1~17^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e6376b6a4195e9caa0f8600db4aaf499b91b65d9;p=thirdparty%2Fsystemd.git

errno: add new ERRNO_IS_NOT_SUPPORTED() helper
---

diff --git a/src/basic/errno-util.h b/src/basic/errno-util.h
index 6053cde62dd..b2723b864e3 100644
--- a/src/basic/errno-util.h
+++ b/src/basic/errno-util.h
@@ -86,3 +86,11 @@ static inline bool ERRNO_IS_RESOURCE(int r) {
                       ENFILE,
                       ENOMEM);
 }
+
+/* Three different errors for "operation/system call/ioctl not supported" */
+static inline bool ERRNO_IS_NOT_SUPPORTED(int r) {
+        return IN_SET(abs(r),
+                      EOPNOTSUPP,
+                      ENOTTY,
+                      ENOSYS);
+}