diff options
Diffstat (limited to 'contrib/bind9/lib/isc/socket_api.c')
| -rw-r--r-- | contrib/bind9/lib/isc/socket_api.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/contrib/bind9/lib/isc/socket_api.c b/contrib/bind9/lib/isc/socket_api.c new file mode 100644 index 000000000000..c1e5fd4ca846 --- /dev/null +++ b/contrib/bind9/lib/isc/socket_api.c @@ -0,0 +1,216 @@ +/* + * Copyright (C) 2009 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: socket_api.c,v 1.5 2009-10-01 01:30:01 sar Exp $ */ + +#include <config.h> + +#include <isc/app.h> +#include <isc/magic.h> +#include <isc/mutex.h> +#include <isc/once.h> +#include <isc/socket.h> +#include <isc/util.h> + +static isc_mutex_t createlock; +static isc_once_t once = ISC_ONCE_INIT; +static isc_socketmgrcreatefunc_t socketmgr_createfunc = NULL; + +static void +initialize(void) { + RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS); +} + +isc_result_t +isc_socket_register(isc_socketmgrcreatefunc_t createfunc) { + isc_result_t result = ISC_R_SUCCESS; + + RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS); + + LOCK(&createlock); + if (socketmgr_createfunc == NULL) + socketmgr_createfunc = createfunc; + else + result = ISC_R_EXISTS; + UNLOCK(&createlock); + + return (result); +} + +isc_result_t +isc_socketmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx, + isc_socketmgr_t **managerp) +{ + isc_result_t result; + + LOCK(&createlock); + + REQUIRE(socketmgr_createfunc != NULL); + result = (*socketmgr_createfunc)(mctx, managerp); + + UNLOCK(&createlock); + + if (result == ISC_R_SUCCESS) + isc_appctx_setsocketmgr(actx, *managerp); + + return (result); +} + +isc_result_t +isc_socketmgr_create(isc_mem_t *mctx, isc_socketmgr_t **managerp) { + isc_result_t result; + + LOCK(&createlock); + + REQUIRE(socketmgr_createfunc != NULL); + result = (*socketmgr_createfunc)(mctx, managerp); + + UNLOCK(&createlock); + + return (result); +} + +void +isc_socketmgr_destroy(isc_socketmgr_t **managerp) { + REQUIRE(managerp != NULL && ISCAPI_SOCKETMGR_VALID(*managerp)); + + (*managerp)->methods->destroy(managerp); + + ENSURE(*managerp == NULL); +} + +isc_result_t +isc_socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type, + isc_socket_t **socketp) +{ + REQUIRE(ISCAPI_SOCKETMGR_VALID(manager)); + + return (manager->methods->socketcreate(manager, pf, type, socketp)); +} + +void +isc_socket_attach(isc_socket_t *sock, isc_socket_t **socketp) { + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + REQUIRE(socketp != NULL && *socketp == NULL); + + sock->methods->attach(sock, socketp); + + ENSURE(*socketp == sock); +} + +void +isc_socket_detach(isc_socket_t **socketp) { + REQUIRE(socketp != NULL && ISCAPI_SOCKET_VALID(*socketp)); + + (*socketp)->methods->detach(socketp); + + ENSURE(*socketp == NULL); +} + +isc_result_t +isc_socket_bind(isc_socket_t *sock, isc_sockaddr_t *sockaddr, + unsigned int options) +{ + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return (sock->methods->bind(sock, sockaddr, options)); +} + +isc_result_t +isc_socket_sendto(isc_socket_t *sock, isc_region_t *region, isc_task_t *task, + isc_taskaction_t action, const void *arg, + isc_sockaddr_t *address, struct in6_pktinfo *pktinfo) +{ + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return (sock->methods->sendto(sock, region, task, action, arg, address, + pktinfo)); +} + +isc_result_t +isc_socket_connect(isc_socket_t *sock, isc_sockaddr_t *addr, isc_task_t *task, + isc_taskaction_t action, const void *arg) +{ + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return (sock->methods->connect(sock, addr, task, action, arg)); +} + +isc_result_t +isc_socket_recv(isc_socket_t *sock, isc_region_t *region, unsigned int minimum, + isc_task_t *task, isc_taskaction_t action, const void *arg) +{ + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return (sock->methods->recv(sock, region, minimum, task, action, arg)); +} + +void +isc_socket_cancel(isc_socket_t *sock, isc_task_t *task, unsigned int how) { + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + sock->methods->cancel(sock, task, how); +} + +isc_result_t +isc_socket_getsockname(isc_socket_t *sock, isc_sockaddr_t *addressp) { + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return (sock->methods->getsockname(sock, addressp)); +} + +void +isc_socket_ipv6only(isc_socket_t *sock, isc_boolean_t yes) { + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + sock->methods->ipv6only(sock, yes); +} + +isc_sockettype_t +isc_socket_gettype(isc_socket_t *sock) { + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return (sock->methods->gettype(sock)); +} + +void +isc_socket_setname(isc_socket_t *socket, const char *name, void *tag) { + REQUIRE(ISCAPI_SOCKET_VALID(socket)); + + UNUSED(socket); /* in case REQUIRE() is empty */ + UNUSED(name); + UNUSED(tag); +} + +isc_result_t +isc_socket_fdwatchcreate(isc_socketmgr_t *manager, int fd, int flags, + isc_sockfdwatch_t callback, void *cbarg, + isc_task_t *task, isc_socket_t **socketp) +{ + REQUIRE(ISCAPI_SOCKETMGR_VALID(manager)); + + return (manager->methods->fdwatchcreate(manager, fd, flags, + callback, cbarg, task, + socketp)); +} + +isc_result_t +isc_socket_fdwatchpoke(isc_socket_t *sock, int flags) +{ + REQUIRE(ISCAPI_SOCKET_VALID(sock)); + + return(sock->methods->fdwatchpoke(sock, flags)); +} |