From: Stefan Metzmacher <metze@samba.org>
Date: Mon, 8 Aug 2022 13:25:39 +0000 (+0200)
Subject: lib/replace: use syscall(__NR_openat2) if available
X-Git-Tag: talloc-2.4.0~1436
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b89001e9226ecb0f4e5c906f7195f0e53cd7d608;p=thirdparty%2Fsamba.git

lib/replace: use syscall(__NR_openat2) if available

There's no glibc wrapper for openat2() yet, so we need
to use syscall(__NR_openat2) ourself.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
---

diff --git a/lib/replace/replace.c b/lib/replace/replace.c
index e937d81dbd1..5ec2f7ccc56 100644
--- a/lib/replace/replace.c
+++ b/lib/replace/replace.c
@@ -1087,7 +1087,15 @@ ssize_t rep_copy_file_range(int fd_in,
 long rep_openat2(int dirfd, const char *pathname,
 		 struct open_how *how, size_t size)
 {
+#ifdef __NR_openat2
+	return syscall(__NR_openat2,
+		       dirfd,
+		       pathname,
+		       how,
+		       size);
+#else
 	errno = ENOSYS;
 	return -1;
+#endif
 }
 #endif /* !HAVE_OPENAT2 */