+// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2016 David Lamparter, for NetDEF, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
#include "memory.h"
#include "hook.h"
-DEFINE_MTYPE_STATIC(LIB, HOOK_ENTRY, "Hook entry")
+DEFINE_MTYPE_STATIC(LIB, HOOK_ENTRY, "Hook entry");
-void _hook_register(struct hook *hook, void *funcptr, void *arg, bool has_arg,
- struct frrmod_runtime *module, const char *funcname,
- int priority)
+void _hook_register(struct hook *hook, struct hookent *stackent, void *funcptr,
+ void *arg, bool has_arg, struct frrmod_runtime *module,
+ const char *funcname, int priority)
{
- struct hookent *he = XCALLOC(MTYPE_HOOK_ENTRY, sizeof(*he)), **pos;
+ struct hookent *he, **pos;
+
+ if (!stackent->ent_used)
+ he = stackent;
+ else {
+ he = XCALLOC(MTYPE_HOOK_ENTRY, sizeof(*he));
+ he->ent_on_heap = true;
+ }
+ he->ent_used = true;
he->hookfn = funcptr;
he->hookarg = arg;
he->has_arg = has_arg;
he->priority = priority;
for (pos = &hook->entries; *pos; pos = &(*pos)->next)
- if (hook->reverse
- ? (*pos)->priority < priority
- : (*pos)->priority >= priority)
+ if (hook->reverse ? (*pos)->priority < priority
+ : (*pos)->priority >= priority)
break;
he->next = *pos;
if (he->hookfn == funcptr && he->hookarg == arg
&& he->has_arg == has_arg) {
*prev = he->next;
- XFREE(MTYPE_HOOK_ENTRY, he);
+ if (he->ent_on_heap)
+ XFREE(MTYPE_HOOK_ENTRY, he);
+ else
+ memset(he, 0, sizeof(*he));
break;
}
}