+// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2016 David Lamparter, for NetDEF, Inc.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 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;
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;
}
}