-/*
- * Copyright (c) 2016, Olivier MATZ <zer0@droids-corp.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the University of California, Berkeley nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2016, Olivier MATZ <zer0@droids-corp.org>
*/
#include <stdio.h>
{
struct ec_node_re *node = (struct ec_node_re *)gen_node;
- ec_free(node->re_str);
- regfree(&node->re);
+ if (node->re_str != NULL) {
+ ec_free(node->re_str);
+ regfree(&node->re);
+ }
}
static struct ec_node_type ec_node_re_type = {
int ec_node_re_set_regexp(struct ec_node *gen_node, const char *str)
{
struct ec_node_re *node = (struct ec_node_re *)gen_node;
+ char *str_copy = NULL;
+ regex_t re;
int ret;
if (str == NULL)
return -EINVAL;
- if (node->re_str != NULL) // XXX allow to replace
- return -EEXIST;
ret = -ENOMEM;
- node->re_str = ec_strdup(str);
- if (node->re_str == NULL)
+ str_copy = ec_strdup(str);
+ if (str_copy == NULL)
goto fail;
ret = -EINVAL;
- if (regcomp(&node->re, node->re_str, REG_EXTENDED) != 0)
+ if (regcomp(&re, str_copy, REG_EXTENDED) != 0)
goto fail;
+ if (node->re_str != NULL) {
+ ec_free(node->re_str);
+ regfree(&node->re);
+ }
+ node->re_str = str_copy;
+ node->re = re;
+
return 0;
fail:
- ec_free(node->re_str);
+ ec_free(str_copy);
return ret;
}