121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "uv.h"
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#include "internal.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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static void uv__getnameinfo_work(struct uv__work* w) {
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uv_getnameinfo_t* req;
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int err;
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socklen_t salen;
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req = container_of(w, uv_getnameinfo_t, work_req);
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if (req->storage.ss_family == AF_INET)
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salen = sizeof(struct sockaddr_in);
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else if (req->storage.ss_family == AF_INET6)
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salen = sizeof(struct sockaddr_in6);
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else
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abort();
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err = getnameinfo((struct sockaddr*) &req->storage,
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salen,
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req->host,
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sizeof(req->host),
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req->service,
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sizeof(req->service),
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req->flags);
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req->retcode = uv__getaddrinfo_translate_error(err);
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}
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static void uv__getnameinfo_done(struct uv__work* w, int status) {
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uv_getnameinfo_t* req;
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char* host;
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char* service;
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req = container_of(w, uv_getnameinfo_t, work_req);
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uv__req_unregister(req->loop, req);
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host = service = NULL;
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if (status == -ECANCELED) {
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assert(req->retcode == 0);
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req->retcode = UV_EAI_CANCELED;
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} else if (req->retcode == 0) {
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host = req->host;
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service = req->service;
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}
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if (req->getnameinfo_cb)
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req->getnameinfo_cb(req, req->retcode, host, service);
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}
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/*
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* Entry point for getnameinfo
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* return 0 if a callback will be made
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* return error code if validation fails
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*/
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int uv_getnameinfo(uv_loop_t* loop,
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uv_getnameinfo_t* req,
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uv_getnameinfo_cb getnameinfo_cb,
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const struct sockaddr* addr,
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int flags) {
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if (req == NULL || addr == NULL)
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return UV_EINVAL;
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if (addr->sa_family == AF_INET) {
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memcpy(&req->storage,
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addr,
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sizeof(struct sockaddr_in));
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} else if (addr->sa_family == AF_INET6) {
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memcpy(&req->storage,
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addr,
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sizeof(struct sockaddr_in6));
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} else {
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return UV_EINVAL;
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}
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uv__req_init(loop, (uv_req_t*)req, UV_GETNAMEINFO);
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req->getnameinfo_cb = getnameinfo_cb;
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req->flags = flags;
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req->type = UV_GETNAMEINFO;
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req->loop = loop;
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req->retcode = 0;
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if (getnameinfo_cb) {
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uv__work_submit(loop,
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&req->work_req,
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uv__getnameinfo_work,
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uv__getnameinfo_done);
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return 0;
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} else {
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uv__getnameinfo_work(&req->work_req);
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uv__getnameinfo_done(&req->work_req, 0);
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return req->retcode;
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}
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}
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