diff options
Diffstat (limited to 'source4/scripting/python/pyxattr_native.c')
| -rw-r--r-- | source4/scripting/python/pyxattr_native.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/source4/scripting/python/pyxattr_native.c b/source4/scripting/python/pyxattr_native.c new file mode 100644 index 0000000000..7cff42cebe --- /dev/null +++ b/source4/scripting/python/pyxattr_native.c @@ -0,0 +1,130 @@ +/* + Unix SMB/CIFS implementation. Xattr manipulation bindings. + Copyright (C) Matthieu Patou <mat@matws.net> 2009 + Base on work of pyglue.c by Jelmer Vernooij <jelmer@samba.org> 2007 and + Matthias Dieter Wallnöfer 2009 + + This program 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 3 of the License, or + (at your option) any later version. + + This program 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 this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <Python.h> +#include "version.h" +#include "includes.h" +#include "librpc/ndr/libndr.h" +#include "lib/util/wrap_xattr.h" + +#ifndef Py_RETURN_NONE +#define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None +#endif + +static PyObject *py_is_xattr_supported(PyObject *self) +{ +#if !defined(HAVE_XATTR_SUPPORT) + return Py_False; +#else + return Py_True; +#endif +} +static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args) +{ + char *filename, *attribute; + int ret = 0; + int blobsize; + DATA_BLOB blob; + + if (!PyArg_ParseTuple(args, "sss#", &filename,&attribute,&blob.data,&blobsize)) + return NULL; + + blob.length = blobsize; + ret = wrap_setxattr(filename,attribute,blob.data,blob.length,0); + if( ret < 0 ) { + if (errno == ENOTSUP) { + PyErr_SetString(PyExc_IOError, strerror(errno)); + } else { + PyErr_SetString(PyExc_TypeError, strerror(errno)); + } + return NULL; + } + Py_RETURN_NONE; +} + +static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args) +{ + char *filename, *attribute; + int len; + TALLOC_CTX *mem_ctx; + uint8_t *buf; + PyObject *ret; + if (!PyArg_ParseTuple(args, "ss", &filename,&attribute)) + return NULL; + mem_ctx = talloc_new(NULL); + len = wrap_getxattr(filename,attribute,NULL,0); + if( len < 0 ) { + if (errno == ENOTSUP) { + PyErr_SetString(PyExc_IOError, strerror(errno)); + } else { + PyErr_SetString(PyExc_TypeError, strerror(errno)); + } + return NULL; + } + /* check length ... */ + buf = talloc_zero_array(mem_ctx, uint8_t, len); + len = wrap_getxattr(filename,attribute,buf,len); + if( len < 0 ) { + if (errno == ENOTSUP) { + PyErr_SetString(PyExc_IOError, strerror(errno)); + } else { + PyErr_SetString(PyExc_TypeError, strerror(errno)); + } + return NULL; + } + ret = PyString_FromStringAndSize(buf,len); + talloc_free(buf); + return ret; +} + +static PyMethodDef py_xattr_methods[] = { + { "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS, + "wrap_getxattr(filename,attribute) -> blob\n" + "Retreive given attribute on the given file." }, + { "wrap_setxattr", (PyCFunction)py_wrap_setxattr, METH_VARARGS, + "wrap_setxattr(filename,attribute,value)\n" + "Set the given attribute to the given value on the given file." }, + { "is_xattr_supported", (PyCFunction)py_is_xattr_supported, METH_NOARGS, + "Return true if xattr are supported on this system\n"}, + { NULL } +}; + +void initxattr_native(void) +{ + PyObject *m; + + m = Py_InitModule3("xattr_native", py_xattr_methods, + "Python bindings for xattr manipulation."); + if (m == NULL) + return; + + PyModule_AddObject(m, "version", PyString_FromString(SAMBA_VERSION_STRING)); + + /* one of the most annoying things about python scripts is + that they don't die when you hit control-C. This fixes that + sillyness. As we do all database operations using + transactions, this is also safe. In fact, not dying + immediately is unsafe as we could end up treating the + control-C exception as a different error and try to modify + as database incorrectly + */ + signal(SIGINT, SIG_DFL); +} + |