[Feature][T106]ZXW P56U09 code
Only Configure: Yes
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: No
Doc Update: No
Change-Id: I3cbd8b420271eb20c2b40ebe5c78f83059cd42f3
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/mach/hurd/linkat.c b/ap/libc/glibc/glibc-2.23/sysdeps/mach/hurd/linkat.c
new file mode 100644
index 0000000..5237159
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/mach/hurd/linkat.c
@@ -0,0 +1,62 @@
+/* Make a link between file names relative to open directories. Hurd version.
+ Copyright (C) 2006-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+
+/* Make a link to FROM relative to FROMFD called TO relative to TOFD. */
+int
+linkat (int fromfd, const char *from, int tofd, const char *to, int flags)
+{
+ error_t err;
+ file_t oldfile, linknode, todir;
+ char *toname;
+
+ /* POSIX says linkat doesn't follow symlinks by default, so pass
+ O_NOLINK. That can be overridden by AT_SYMLINK_FOLLOW in FLAGS. */
+ oldfile = __file_name_lookup_at (fromfd, flags, from, O_NOLINK, 0);
+ if (oldfile == MACH_PORT_NULL)
+ return -1;
+
+ /* The file_getlinknode RPC returns the port that should be passed to
+ the receiving filesystem (the one containing TODIR) in dir_link. */
+
+ err = __file_getlinknode (oldfile, &linknode);
+ __mach_port_deallocate (__mach_task_self (), oldfile);
+ if (err)
+ return __hurd_fail (err);
+
+ todir = __file_name_split_at (tofd, to, &toname);
+ if (todir != MACH_PORT_NULL)
+ {
+ err = __dir_link (todir, linknode, toname, 1);
+ __mach_port_deallocate (__mach_task_self (), todir);
+ }
+ __mach_port_deallocate (__mach_task_self (), linknode);
+ if (todir == MACH_PORT_NULL)
+ return -1;
+
+ if (err)
+ return __hurd_fail (err);
+ return 0;
+}