[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/posix/truncate.c b/ap/libc/glibc/glibc-2.23/sysdeps/posix/truncate.c
new file mode 100644
index 0000000..82a77b5
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/posix/truncate.c
@@ -0,0 +1,44 @@
+/* Truncate a file given by name. Generic POSIX.1 version.
+ Copyright (C) 1995-2016 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 <sys/types.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* Truncate PATH to LENGTH bytes. */
+int
+__truncate (const char *path, off_t length)
+{
+ int fd, ret, save;
+
+ fd = __open (path, O_WRONLY | (length == 0 ? O_TRUNC : 0));
+ if (fd < 0)
+ return -1;
+
+ if (length == 0)
+ ret = 0;
+ else
+ ret = __ftruncate (fd, length);
+ save = errno;
+ (void) __close (fd);
+ if (ret < 0)
+ __set_errno (save);
+ return ret;
+}
+weak_alias (__truncate, truncate)