Implement cloexec in gdbm_reorganize. Add test cases.

* compat/dbmopen.c: Apply O_CLOEXEC for newly created dir
file, if requested.

* src/gdbmdefs.h (gdbm_file_info) <cloexec>: New member.
* src/gdbmopen.c (gdbm_open): Initialize cloexec member.
* src/gdbmreorg.c (gdbm_reorganize): Propagate cloexec bit
to the new database.

* tests/.cvsignore: Update.
* tests/cloexec00.at: New test case.
* tests/cloexec01.at: Likewise.
* tests/cloexec02.at: Likewise.
* tests/cloexec03.at: Likewise.
* fdop.c: New auxiliary program.
* g_open_ce: New test program.
* g_reorg_ce: New test program.
* d_creat_ce: New test program.
* tests/Makefile.am: Add new test cases and test programs.
* tests/testsuite.at: Include new test cases.
* doc/gdbm.texinfo: Minor change.

1 files changed, 66 insertions, 0 deletions

diff --git a/tests/g_open_ce.c b/tests/g_open_ce.c
new file mode 100644
index 0000000..4f1fcd4
--- /dev/null
+++ b/tests/g_open_ce.c
@@ -0,0 +1,66 @@
+/* This file is part of GDBM test suite.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   GDBM is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   GDBM 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GDBM. If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "autoconf.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <gdbm.h>
+
+char *
+ntos (int n, char *buf, size_t size)
+{
+  char *p = buf + size;
+  *--p = 0;
+  do
+    {
+      int x = n % 10;
+      *--p = '0' + x;
+      n /= 10;
+    }
+  while (n);
+  return p;
+}
+
+#ifndef O_CLOEXEC
+# define O_CLOEXEC 0
+#endif
+
+int
+main (int argc, char *argv[])
+{
+  GDBM_FILE d;
+  char fdbuf[80];
+
+  if (argc != 2)
+    {
+      fprintf (stderr, "usage: %s PATH-TO-FDOP\n", argv[0]);
+      return 2;
+    }
+  if (!O_CLOEXEC)
+    return 77;
+  d = gdbm_open ("file.db", 0, GDBM_NEWDB|GDBM_CLOEXEC, 0600, NULL);
+  if (!d)
+    {
+      fprintf (stderr, "gdbm_open: %s\n", gdbm_strerror (gdbm_errno));
+      return 3;
+    }
+  execl (argv[1], "fdop",
+	 ntos (gdbm_fdesc (d), fdbuf, sizeof (fdbuf)), NULL);
+  return 127;
+}
+