| /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| #include "uv.h" |
| #include "internal.h" |
| |
| #include <assert.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| |
| static void uv__getnameinfo_work(struct uv__work* w) { |
| uv_getnameinfo_t* req; |
| int err; |
| socklen_t salen; |
| |
| req = container_of(w, uv_getnameinfo_t, work_req); |
| |
| if (req->storage.ss_family == AF_INET) |
| salen = sizeof(struct sockaddr_in); |
| else if (req->storage.ss_family == AF_INET6) |
| salen = sizeof(struct sockaddr_in6); |
| else |
| abort(); |
| |
| err = getnameinfo((struct sockaddr*) &req->storage, |
| salen, |
| req->host, |
| sizeof(req->host), |
| req->service, |
| sizeof(req->service), |
| req->flags); |
| req->retcode = uv__getaddrinfo_translate_error(err); |
| } |
| |
| static void uv__getnameinfo_done(struct uv__work* w, int status) { |
| uv_getnameinfo_t* req; |
| char* host; |
| char* service; |
| |
| req = container_of(w, uv_getnameinfo_t, work_req); |
| uv__req_unregister(req->loop, req); |
| host = service = NULL; |
| |
| if (status == UV_ECANCELED) { |
| assert(req->retcode == 0); |
| req->retcode = UV_EAI_CANCELED; |
| } else if (req->retcode == 0) { |
| host = req->host; |
| service = req->service; |
| } |
| |
| if (req->getnameinfo_cb) |
| req->getnameinfo_cb(req, req->retcode, host, service); |
| } |
| |
| /* |
| * Entry point for getnameinfo |
| * return 0 if a callback will be made |
| * return error code if validation fails |
| */ |
| int uv_getnameinfo(uv_loop_t* loop, |
| uv_getnameinfo_t* req, |
| uv_getnameinfo_cb getnameinfo_cb, |
| const struct sockaddr* addr, |
| int flags) { |
| if (req == NULL || addr == NULL) |
| return UV_EINVAL; |
| |
| if (addr->sa_family == AF_INET) { |
| memcpy(&req->storage, |
| addr, |
| sizeof(struct sockaddr_in)); |
| } else if (addr->sa_family == AF_INET6) { |
| memcpy(&req->storage, |
| addr, |
| sizeof(struct sockaddr_in6)); |
| } else { |
| return UV_EINVAL; |
| } |
| |
| uv__req_init(loop, (uv_req_t*)req, UV_GETNAMEINFO); |
| |
| req->getnameinfo_cb = getnameinfo_cb; |
| req->flags = flags; |
| req->type = UV_GETNAMEINFO; |
| req->loop = loop; |
| req->retcode = 0; |
| |
| if (getnameinfo_cb) { |
| uv__work_submit(loop, |
| &req->work_req, |
| UV__WORK_SLOW_IO, |
| uv__getnameinfo_work, |
| uv__getnameinfo_done); |
| return 0; |
| } else { |
| uv__getnameinfo_work(&req->work_req); |
| uv__getnameinfo_done(&req->work_req, 0); |
| return req->retcode; |
| } |
| } |