David van Moolenbroek 00b67f09dd Import NetBSD named(8)
Also known as ISC bind.  This import adds utilities such as host(1),
dig(1), and nslookup(1), as well as many other tools and libraries.

Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
2017-03-21 22:00:06 +00:00

248 lines
5.0 KiB
C

/* $NetBSD: app_api.c,v 1.7 2014/12/10 04:37:59 christos Exp $ */
/*
* Copyright (C) 2009, 2013, 2014 Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC 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.
*/
/* Id: app_api.c,v 1.5 2009/09/02 23:48:02 tbox Exp */
#include <config.h>
#include <unistd.h>
#include <isc/app.h>
#include <isc/magic.h>
#include <isc/mutex.h>
#include <isc/once.h>
#include <isc/util.h>
static isc_mutex_t createlock;
static isc_once_t once = ISC_ONCE_INIT;
static isc_appctxcreatefunc_t appctx_createfunc = NULL;
#define ISCAPI_APPMETHODS_VALID(m) ISC_MAGIC_VALID(m, ISCAPI_APPMETHODS_MAGIC)
static void
initialize(void) {
RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS);
}
isc_result_t
isc_app_register(isc_appctxcreatefunc_t createfunc) {
isc_result_t result = ISC_R_SUCCESS;
RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
LOCK(&createlock);
if (appctx_createfunc == NULL)
appctx_createfunc = createfunc;
else
result = ISC_R_EXISTS;
UNLOCK(&createlock);
return (result);
}
isc_result_t
isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
isc_result_t result;
if (isc_bind9)
return (isc__appctx_create(mctx, ctxp));
LOCK(&createlock);
REQUIRE(appctx_createfunc != NULL);
result = (*appctx_createfunc)(mctx, ctxp);
UNLOCK(&createlock);
return (result);
}
void
isc_appctx_destroy(isc_appctx_t **ctxp) {
REQUIRE(ctxp != NULL && ISCAPI_APPCTX_VALID(*ctxp));
if (isc_bind9)
isc__appctx_destroy(ctxp);
else
(*ctxp)->methods->ctxdestroy(ctxp);
ENSURE(*ctxp == NULL);
}
isc_result_t
isc_app_ctxstart(isc_appctx_t *ctx) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
if (isc_bind9)
return (isc__app_ctxstart(ctx));
return (ctx->methods->ctxstart(ctx));
}
isc_result_t
isc_app_ctxrun(isc_appctx_t *ctx) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
if (isc_bind9)
return (isc__app_ctxrun(ctx));
return (ctx->methods->ctxrun(ctx));
}
isc_result_t
isc_app_ctxonrun(isc_appctx_t *ctx, isc_mem_t *mctx,
isc_task_t *task, isc_taskaction_t action,
void *arg)
{
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
if (isc_bind9)
return (isc__app_ctxonrun(ctx, mctx, task, action, arg));
return (ctx->methods->ctxonrun(ctx, mctx, task, action, arg));
}
isc_result_t
isc_app_ctxsuspend(isc_appctx_t *ctx) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
if (isc_bind9)
return (isc__app_ctxsuspend(ctx));
return (ctx->methods->ctxsuspend(ctx));
}
isc_result_t
isc_app_ctxshutdown(isc_appctx_t *ctx) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
if (isc_bind9)
return (isc__app_ctxshutdown(ctx));
return (ctx->methods->ctxshutdown(ctx));
}
void
isc_app_ctxfinish(isc_appctx_t *ctx) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
if (isc_bind9)
isc__app_ctxfinish(ctx);
ctx->methods->ctxfinish(ctx);
}
void
isc_appctx_settaskmgr(isc_appctx_t *ctx, isc_taskmgr_t *taskmgr) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
REQUIRE(taskmgr != NULL);
if (isc_bind9)
isc__appctx_settaskmgr(ctx, taskmgr);
ctx->methods->settaskmgr(ctx, taskmgr);
}
void
isc_appctx_setsocketmgr(isc_appctx_t *ctx, isc_socketmgr_t *socketmgr) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
REQUIRE(socketmgr != NULL);
if (isc_bind9)
isc__appctx_setsocketmgr(ctx, socketmgr);
ctx->methods->setsocketmgr(ctx, socketmgr);
}
void
isc_appctx_settimermgr(isc_appctx_t *ctx, isc_timermgr_t *timermgr) {
REQUIRE(ISCAPI_APPCTX_VALID(ctx));
REQUIRE(timermgr != NULL);
if (isc_bind9)
isc__appctx_settimermgr(ctx, timermgr);
ctx->methods->settimermgr(ctx, timermgr);
}
isc_result_t
isc_app_start(void) {
if (isc_bind9)
return (isc__app_start());
return (ISC_R_NOTIMPLEMENTED);
}
isc_result_t
isc_app_onrun(isc_mem_t *mctx, isc_task_t *task,
isc_taskaction_t action, void *arg)
{
if (isc_bind9)
return (isc__app_onrun(mctx, task, action, arg));
return (ISC_R_NOTIMPLEMENTED);
}
isc_result_t
isc_app_run() {
if (isc_bind9)
return (isc__app_run());
return (ISC_R_NOTIMPLEMENTED);
}
isc_result_t
isc_app_shutdown(void) {
if (isc_bind9)
return (isc__app_shutdown());
return (ISC_R_NOTIMPLEMENTED);
}
isc_result_t
isc_app_reload(void) {
if (isc_bind9)
return (isc__app_reload());
return (ISC_R_NOTIMPLEMENTED);
}
void
isc_app_finish(void) {
if (!isc_bind9)
return;
isc__app_finish();
}
void
isc_app_block(void) {
if (!isc_bind9)
return;
isc__app_block();
}
void
isc_app_unblock(void) {
if (!isc_bind9)
return;
isc__app_unblock();
}