Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 198 insertions, 0 deletions

diff --git a/REORG.TODO/io/tst-fcntl.c b/REORG.TODO/io/tst-fcntl.c
new file mode 100644
index 0000000000..b7ea288e6c
--- /dev/null
+++ b/REORG.TODO/io/tst-fcntl.c
@@ -0,0 +1,198 @@
+/* Tests for fcntl.
+   Copyright (C) 2000-2017 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 <fcntl.h>
+#include <paths.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+/* 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
+
+#include "../test-skeleton.c"
+
+
+/* Name of the temporary files.  */
+static char *name;
+
+/* File descriptor to temporary file.  */
+static int fd;
+
+void
+do_prepare (int argc, char *argv[])
+{
+   size_t name_len;
+
+   name_len = strlen (test_dir);
+   name = xmalloc (name_len + sizeof ("/fcntlXXXXXX"));
+   mempcpy (mempcpy (name, test_dir, name_len),
+	    "/fcntlXXXXXX", sizeof ("/fcntlXXXXXX"));
+  /* Create the temporary file.  */
+  fd = mkstemp (name);
+  if (fd == -1)
+    {
+      printf ("cannot open temporary file: %m\n");
+      exit (1);
+    }
+   add_temp_file (name);
+}
+
+
+int
+do_test (int argc, char *argv[])
+{
+  int fd2;
+  int fd3;
+  struct stat64 st;
+  int val;
+  int result = 0;
+
+  if (fstat64 (fd, &st) != 0)
+    {
+      printf ("cannot stat test file: %m\n");
+      return 1;
+    }
+  if (! S_ISREG (st.st_mode) || st.st_size != 0)
+    {
+      puts ("file not created correctly");
+      return 1;
+    }
+
+  /* Get the flags with fcntl().  */
+  val = fcntl (fd, F_GETFL);
+  if (val == -1)
+    {
+      printf ("fcntl(fd, F_GETFL) failed: %m\n");
+      result = 1;
+    }
+  else if ((val & O_ACCMODE) != O_RDWR)
+    {
+      puts ("temporary file not opened for read and write");
+      result = 1;
+    }
+
+  /* Set the flags to something else.  */
+  if (fcntl (fd, F_SETFL, O_RDONLY) == -1)
+    {
+      printf ("fcntl(fd, F_SETFL, O_RDONLY) failed: %m\n");
+      result = 1;
+    }
+
+  val = fcntl (fd, F_GETFL);
+  if (val == -1)
+    {
+      printf ("fcntl(fd, F_GETFL) after F_SETFL failed: %m\n");
+      result = 1;
+    }
+  else if ((val & O_ACCMODE) != O_RDWR)
+    {
+      puts ("temporary file access mode changed");
+      result = 1;
+    }
+
+  /* Set the flags to something else.  */
+  if (fcntl (fd, F_SETFL, O_APPEND) == -1)
+    {
+      printf ("fcntl(fd, F_SETFL, O_APPEND) failed: %m\n");
+      result = 1;
+    }
+
+  val = fcntl (fd, F_GETFL);
+  if (val == -1)
+    {
+      printf ("fcntl(fd, F_GETFL) after second F_SETFL failed: %m\n");
+      result = 1;
+    }
+  else if ((val & O_APPEND) == 0)
+    {
+      puts ("O_APPEND not set");
+      result = 1;
+    }
+
+  val = fcntl (fd, F_GETFD);
+  if (val == -1)
+    {
+      printf ("fcntl(fd, F_GETFD) failed: %m\n");
+      result = 1;
+    }
+  else if (fcntl (fd, F_SETFD, val | FD_CLOEXEC) == -1)
+    {
+      printf ("fcntl(fd, F_SETFD, FD_CLOEXEC) failed: %m\n");
+      result = 1;
+    }
+  else
+    {
+      val = fcntl (fd, F_GETFD);
+      if (val == -1)
+	{
+	  printf ("fcntl(fd, F_GETFD) after F_SETFD failed: %m\n");
+	  result = 1;
+	}
+      else if ((val & FD_CLOEXEC) == 0)
+	{
+	  puts ("FD_CLOEXEC not set");
+	  result = 1;
+	}
+    }
+
+  /* Get a number of a free descriptor.  If /dev/null is not available
+     don't continue testing.  */
+  fd2 = open (_PATH_DEVNULL, O_RDWR);
+  if (fd2 == -1)
+    return result;
+  close (fd2);
+
+  fd3 = fcntl (fd, F_DUPFD, fd2 + 1);
+  if (fd3 == -1)
+    {
+      printf ("fcntl(fd, F_DUPFD, %d) failed: %m\n", fd2 + 1);
+      result = 1;
+    }
+  else if (fd3 <= fd2)
+    {
+      printf ("F_DUPFD returned %d which is not larger than %d\n", fd3, fd2);
+      result = 1;
+    }
+
+  if (fd3 != -1)
+    {
+      val = fcntl (fd3, F_GETFD);
+      if (val == -1)
+	{
+	  printf ("fcntl(fd3, F_GETFD) after F_DUPFD failed: %m\n");
+	  result = 1;
+	}
+      else if ((val & FD_CLOEXEC) != 0)
+	{
+	  puts ("FD_CLOEXEC still set");
+	  result = 1;
+	}
+
+      close (fd3);
+    }
+
+  return result;
+}