[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/posix/tst-truncate.c b/ap/libc/glibc/glibc-2.23/posix/tst-truncate.c
new file mode 100644
index 0000000..8f5957f
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/posix/tst-truncate.c
@@ -0,0 +1,132 @@
+/* Tests for ftruncate and truncate.
+ Copyright (C) 2000-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+ 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 <error.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+/* Allow testing of the 64-bit versions as well. */
+#ifndef TRUNCATE
+# define TRUNCATE truncate
+# define FTRUNCATE ftruncate
+#endif
+
+#define STRINGIFY(s) STRINGIFY2 (s)
+#define STRINGIFY2(s) #s
+
+/* Prototype for our test function. */
+extern void do_prepare (int argc, char *argv[]);
+extern int do_test (int argc, char *argv[]);
+
+/* We have a preparation function. */
+#define PREPARE do_prepare
+
+/* We might need a bit longer timeout. */
+#define TIMEOUT 20 /* sec */
+
+/* This defines the `main' function and some more. */
+#include <test-skeleton.c>
+
+/* These are for the temporary file we generate. */
+char *name;
+int fd;
+
+void
+do_prepare (int argc, char *argv[])
+{
+ size_t name_len;
+
+#define FNAME FNAME2(TRUNCATE)
+#define FNAME2(s) "/" STRINGIFY(s) "XXXXXX"
+
+ name_len = strlen (test_dir);
+ name = malloc (name_len + sizeof (FNAME));
+ mempcpy (mempcpy (name, test_dir, name_len), FNAME, sizeof (FNAME));
+ add_temp_file (name);
+
+ /* Open our test file. */
+ fd = mkstemp (name);
+ if (fd == -1)
+ error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
+}
+
+
+int
+do_test (int argc, char *argv[])
+{
+ struct stat st;
+ char buf[1000];
+
+ memset (buf, '\0', sizeof (buf));
+
+ if (write (fd, buf, sizeof (buf)) != sizeof (buf))
+ error (EXIT_FAILURE, errno, "during write");
+
+ if (fstat (fd, &st) < 0 || st.st_size != sizeof (buf))
+ error (EXIT_FAILURE, 0, "initial size wrong");
+
+
+ if (FTRUNCATE (fd, 800) < 0)
+ error (EXIT_FAILURE, errno, "size reduction with %s failed",
+ STRINGIFY (FTRUNCATE));
+
+ if (fstat (fd, &st) < 0 || st.st_size != 800)
+ error (EXIT_FAILURE, 0, "size after reduction with %s incorrect",
+ STRINGIFY (FTRUNCATE));
+
+ /* The following test covers more than POSIX. POSIX does not require
+ that ftruncate() can increase the file size. But we are testing
+ Unix systems. */
+ if (FTRUNCATE (fd, 1200) < 0)
+ error (EXIT_FAILURE, errno, "size increase with %s failed",
+ STRINGIFY (FTRUNCATE));
+
+ if (fstat (fd, &st) < 0 || st.st_size != 1200)
+ error (EXIT_FAILURE, 0, "size after increase with %s incorrect",
+ STRINGIFY (FTRUNCATE));
+
+
+ if (TRUNCATE (name, 800) < 0)
+ error (EXIT_FAILURE, errno, "size reduction with %s failed",
+ STRINGIFY (TRUNCATE));
+
+ if (fstat (fd, &st) < 0 || st.st_size != 800)
+ error (EXIT_FAILURE, 0, "size after reduction with %s incorrect",
+ STRINGIFY (TRUNCATE));
+
+ /* The following test covers more than POSIX. POSIX does not require
+ that truncate() can increase the file size. But we are testing
+ Unix systems. */
+ if (TRUNCATE (name, 1200) < 0)
+ error (EXIT_FAILURE, errno, "size increase with %s failed",
+ STRINGIFY (TRUNCATE));
+
+ if (fstat (fd, &st) < 0 || st.st_size != 1200)
+ error (EXIT_FAILURE, 0, "size after increase with %s incorrect",
+ STRINGIFY (TRUNCATE));
+
+
+ close (fd);
+ unlink (name);
+
+ return 0;
+}