r383: Scripting extensions using swig. This commit includes only a (LGPL)

python interface to tdb and a rudimentary build system.

Configure with --with-python and make swig to build and append
$(builddir)/scripting/swig/python to PYTHONPATH.
(This used to be commit bbc15d6f84b6a247ae87b253752a86a38f1d6798)

5 files changed, 213 insertions, 0 deletions

diff --git a/source4/Makefile.in b/source4/Makefile.in
index a3c06b5bd9..405f42764a 100644
--- a/source4/Makefile.in
+++ b/source4/Makefile.in
@@ -227,6 +227,26 @@ PROTO_OBJ = 	$(SERVER_OBJS) $(PROCESS_MODEL_OBJS) $(CLIENT_OBJS) $(TORTURE_OBJS)
 		$(DCERPC_OBJS) $(SMB_OBJS) $(AUTH_OBJS) $(PASSDB_OBJS) $(NTVFS_OBJS) \
 		$(LIBBASIC_OBJS) $(LIBLDB_OBJS) $(CONFIG_OBJS) $(LIBCMDLINE_OBJS) $(LIBSMB_OBJS) $(REG_OBJS)
 
+# Swig extensions
+
+PYTHON_TDB_OBJ = lib/tdb/tdb.o lib/tdb/spinlock.o
+PYTHON_TDB_PICOBJ = $(PYTHON_TDB_OBJ:.o=.po)
+
+swig: scripting/swig/python/_tdb.so
+
+swig_clean: 
+	rm -f scripting/swig/python/_tdb.so scripting/swig/python/tdb.pyc \
+		scripting/swig/python/tdb.py scripting/swig/python/tdb_wrap.c \
+		scripting/swig/python/tdb_wrap.po
+
+scripting/swig/python/tdb.py: scripting/swig/tdb.i
+	swig -python scripting/swig/tdb.i
+	mv scripting/swig/tdb.py scripting/swig/python
+	mv scripting/swig/tdb_wrap.c scripting/swig/python
+
+scripting/swig/python/_tdb.so: scripting/swig/python/tdb.py scripting/swig/python/tdb_wrap.po $(PYTHON_TDB_PICOBJ)
+	$(SHLD) $(LDSHFLAGS) -o scripting/swig/python/_tdb.so scripting/swig/python/tdb_wrap.po \
+		$(PYTHON_TDB_PICOBJ)
 
 ######################################################################
 # now the rules...
diff --git a/source4/configure.in b/source4/configure.in
index a6639064a7..3b5640112c 100644
--- a/source4/configure.in
+++ b/source4/configure.in
@@ -212,6 +212,7 @@ sinclude(ntvfs/config.m4)
 sinclude(rpc_server/config.m4)
 sinclude(lib/registry/config.m4)
 sinclude(torture/config.m4)
+sinclude(scripting/config.m4)
 
 AC_DEFINE_UNQUOTED(STRING_STATIC_MODULES, "$string_static_modules", [String list of builtin modules])
 
diff --git a/source4/scripting/config.m4 b/source4/scripting/config.m4
new file mode 100644
index 0000000000..02a563e167
--- /dev/null
+++ b/source4/scripting/config.m4
@@ -0,0 +1,27 @@
+dnl # Scripting subsystem
+
+# Check for python support
+
+PYTHON=
+ 
+AC_ARG_WITH(python,
+[  --with-python=PYTHONNAME  build Python libraries],
+[ case "${withval-python}" in
+  yes)
+        PYTHON=python
+        ;;
+  no)
+        PYTHON=
+        ;;
+  *)
+        PYTHON=${withval-python}
+        ;;
+  esac ])
+
+if test x"$PYTHON" != "x"; then
+	incdir=`python -c 'import sys; print "%s/include/python%d.%d" % (sys.prefix, sys.version_info[[0]], sys.version_info[[1]])'`
+	CPPFLAGS="$CPPFLAGS -I $incdir"
+fi
+
+AC_SUBST(PYTHON)
+
diff --git a/source4/scripting/swig/samba.i b/source4/scripting/swig/samba.i
new file mode 100644
index 0000000000..edb038bd5b
--- /dev/null
+++ b/source4/scripting/swig/samba.i
@@ -0,0 +1,33 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Common swig definitions
+   
+   Copyright (C) 2004 Tim Potter <tpot@samba.org>
+
+     ** NOTE! The following LGPL license applies to the tdb
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+%typemap(in) uint32 {
+	if (!PyInt_Check($input)) {
+		PyErr_SetString(PyExc_TypeError, "integer expected");
+		return NULL;
+	}
+	$1 = (uint32)PyInt_AsLong($input);
+}
diff --git a/source4/scripting/swig/tdb.i b/source4/scripting/swig/tdb.i
new file mode 100644
index 0000000000..9f8961c248
--- /dev/null
+++ b/source4/scripting/swig/tdb.i
@@ -0,0 +1,132 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Swig interface to tdb.
+
+   Copyright (C) 2004 Tim Potter <tpot@samba.org>
+
+     ** NOTE! The following LGPL license applies to the tdb
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+   
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+%module tdb
+
+%{
+
+/* The tdb_set_lock_alarm() function requires the SIG_ATOMIC_T
+   function from includes.h */
+
+#include "include/config.h"
+#if defined(HAVE_SIG_ATOMIC_T_TYPE)
+typedef sig_atomic_t SIG_ATOMIC_T;
+#else
+typedef int SIG_ATOMIC_T;
+#endif
+
+/* Include tdb headers */
+
+#include "tdb/tdb.h"
+
+%}
+
+/* The tdb functions will crash if a NULL tdb is passed */
+
+%include exception.i
+
+%typemap(check) TDB_CONTEXT* {
+	if ($1 == NULL)
+		SWIG_exception(SWIG_ValueError, 
+			"tdb context must be non-NULL");
+}
+
+/* In and out typemaps for the TDB_DATA structure.  This is converted to
+   and from the Python string type. */
+
+%typemap(in) TDB_DATA {
+	if (!PyString_Check($input)) {
+		PyErr_SetString(PyExc_TypeError, "string arg expected");
+		return NULL;
+	}
+	$1.dsize = PyString_Size($input);
+	$1.dptr = PyString_AsString($input);
+}
+
+%typemap(out) TDB_DATA {
+	if ($1.dptr == NULL && $1.dsize == 0) {
+		$result = Py_None;
+	} else {
+		$result = PyString_FromStringAndSize($1.dptr, $1.dsize);
+		free($1.dptr);
+	}
+}
+
+/* Treat a mode_t as an unsigned integer */
+
+typedef unsigned int mode_t;
+
+/* flags to tdb_store() */
+
+#define TDB_REPLACE 1
+#define TDB_INSERT 2
+#define TDB_MODIFY 3
+
+/* flags for tdb_open() */
+
+#define TDB_DEFAULT 0 /* just a readability place holder */
+#define TDB_CLEAR_IF_FIRST 1
+#define TDB_INTERNAL 2 /* don't store on disk */
+#define TDB_NOLOCK   4 /* don't do any locking */
+#define TDB_NOMMAP   8 /* don't use mmap */
+#define TDB_CONVERT 16 /* convert endian (internal use) */
+#define TDB_BIGENDIAN 32 /* header is big-endian (internal use) */
+
+TDB_CONTEXT *tdb_open(const char *name, int hash_size, int tdb_flags,
+		      int open_flags, mode_t mode);
+
+TDB_CONTEXT *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
+			 int open_flags, mode_t mode,
+			 tdb_log_func log_fn);
+
+int tdb_reopen(TDB_CONTEXT *tdb);
+int tdb_reopen_all(void);
+
+void tdb_logging_function(TDB_CONTEXT *tdb, tdb_log_func);
+enum TDB_ERROR tdb_error(TDB_CONTEXT *tdb);
+const char *tdb_errorstr(TDB_CONTEXT *tdb);
+TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key);
+int tdb_delete(TDB_CONTEXT *tdb, TDB_DATA key);
+int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag = TDB_REPLACE);
+int tdb_append(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA new_dbuf);
+int tdb_close(TDB_CONTEXT *tdb);
+TDB_DATA tdb_firstkey(TDB_CONTEXT *tdb);
+TDB_DATA tdb_nextkey(TDB_CONTEXT *tdb, TDB_DATA key);
+int tdb_traverse(TDB_CONTEXT *tdb, tdb_traverse_func fn, void *state);
+int tdb_exists(TDB_CONTEXT *tdb, TDB_DATA key);
+int tdb_lockkeys(TDB_CONTEXT *tdb, u32 number, TDB_DATA keys[]);
+void tdb_unlockkeys(TDB_CONTEXT *tdb);
+int tdb_lockall(TDB_CONTEXT *tdb);
+void tdb_unlockall(TDB_CONTEXT *tdb);
+
+/* Low level locking functions: use with care */
+void tdb_set_lock_alarm(SIG_ATOMIC_T *palarm);
+int tdb_chainlock(TDB_CONTEXT *tdb, TDB_DATA key);
+int tdb_chainunlock(TDB_CONTEXT *tdb, TDB_DATA key);
+
+/* Debug functions. Not used in production. */
+void tdb_dump_all(TDB_CONTEXT *tdb);
+int tdb_printfreelist(TDB_CONTEXT *tdb);