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/*
* Copyright (c) 2002-2013 Balabit
* Copyright (c) 1998-2013 Balázs Scheidler
*
* 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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "filter-op.h"
typedef struct _FilterOp
{
FilterExprNode super;
FilterExprNode *left, *right;
} FilterOp;
static gboolean
fop_init(FilterExprNode *s, GlobalConfig *cfg)
{
FilterOp *self = (FilterOp *) s;
g_assert(self->left);
g_assert(self->right);
if (!filter_expr_init(self->left, cfg))
return FALSE;
if (!filter_expr_init(self->right, cfg))
return FALSE;
self->super.modify = self->left->modify || self->right->modify;
return TRUE;
}
static void
fop_free(FilterExprNode *s)
{
FilterOp *self = (FilterOp *) s;
filter_expr_unref(self->left);
filter_expr_unref(self->right);
g_free((gchar *) self->super.type);
}
FilterExprNode *
fop_clone(FilterExprNode *s)
{
FilterOp *self = (FilterOp *) s;
FilterOp *cloned_self = g_new0(FilterOp, 1);
filter_expr_node_init_instance(&cloned_self->super);
cloned_self->super.init = fop_init;
cloned_self->super.free_fn = fop_free;
cloned_self->super.clone = fop_clone;
cloned_self->super.eval = self->super.eval;
cloned_self->left = filter_expr_clone(self->left);
cloned_self->right = filter_expr_clone(self->right);
cloned_self->super.type = g_strdup(self->super.type);
return &cloned_self->super;
}
static void
fop_init_instance(FilterOp *self)
{
filter_expr_node_init_instance(&self->super);
self->super.init = fop_init;
self->super.free_fn = fop_free;
self->super.clone = fop_clone;
}
static gboolean
fop_or_eval(FilterExprNode *s, LogMessage **msgs, gint num_msg, LogTemplateEvalOptions *options)
{
FilterOp *self = (FilterOp *) s;
return (filter_expr_eval_with_context(self->left, msgs, num_msg, options)
|| filter_expr_eval_with_context(self->right, msgs, num_msg, options)) ^ s->comp;
}
FilterExprNode *
fop_or_new(FilterExprNode *e1, FilterExprNode *e2)
{
FilterOp *self = g_new0(FilterOp, 1);
fop_init_instance(self);
self->super.eval = fop_or_eval;
self->left = e1;
self->right = e2;
self->super.type = g_strdup("OR");
return &self->super;
}
static gboolean
fop_and_eval(FilterExprNode *s, LogMessage **msgs, gint num_msg, LogTemplateEvalOptions *options)
{
FilterOp *self = (FilterOp *) s;
return (filter_expr_eval_with_context(self->left, msgs, num_msg, options)
&& filter_expr_eval_with_context(self->right, msgs, num_msg, options)) ^ s->comp;
}
FilterExprNode *
fop_and_new(FilterExprNode *e1, FilterExprNode *e2)
{
FilterOp *self = g_new0(FilterOp, 1);
fop_init_instance(self);
self->super.eval = fop_and_eval;
self->left = e1;
self->right = e2;
self->super.type = g_strdup("AND");
return &self->super;
}
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