| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "starboard/socket.h" |
| |
| #include <errno.h> |
| #include <sys/socket.h> |
| |
| #include "starboard/log.h" |
| #include "starboard/shared/posix/handle_eintr.h" |
| #include "starboard/shared/posix/socket_internal.h" |
| |
| namespace sbposix = starboard::shared::posix; |
| |
| namespace { |
| |
| bool IsReportableErrno(int code) { |
| return (code != EAGAIN && code != EWOULDBLOCK && code != ECONNRESET); |
| } |
| |
| } // namespace |
| |
| int SbSocketReceiveFrom(SbSocket socket, |
| char* out_data, |
| int data_size, |
| SbSocketAddress* out_source) { |
| const int kRecvFlags = 0; |
| |
| if (!SbSocketIsValid(socket)) { |
| errno = EBADF; |
| return -1; |
| } |
| |
| SB_DCHECK(socket->socket_fd >= 0); |
| if (socket->protocol == kSbSocketProtocolTcp) { |
| if (out_source) { |
| sbposix::SockAddr sock_addr; |
| int result = getpeername(socket->socket_fd, sock_addr.sockaddr(), |
| &sock_addr.length); |
| if (result < 0) { |
| SB_DLOG(ERROR) << __FUNCTION__ |
| << ": getpeername failed, errno = " << errno; |
| socket->error = sbposix::TranslateSocketErrno(errno); |
| return -1; |
| } |
| |
| if (!sock_addr.ToSbSocketAddress(out_source)) { |
| SB_DLOG(FATAL) << __FUNCTION__ << ": Bad TCP source address."; |
| socket->error = kSbSocketErrorFailed; |
| return -1; |
| } |
| } |
| |
| ssize_t bytes_read = |
| recv(socket->socket_fd, out_data, data_size, kRecvFlags); |
| if (bytes_read >= 0) { |
| socket->error = kSbSocketOk; |
| return static_cast<int>(bytes_read); |
| } |
| |
| if (IsReportableErrno(errno) && |
| socket->error != sbposix::TranslateSocketErrno(errno)) { |
| SB_DLOG(ERROR) << "recv failed, errno = " << errno; |
| } |
| socket->error = sbposix::TranslateSocketErrno(errno); |
| return -1; |
| } else if (socket->protocol == kSbSocketProtocolUdp) { |
| sbposix::SockAddr sock_addr; |
| ssize_t bytes_read = |
| recvfrom(socket->socket_fd, out_data, data_size, kRecvFlags, |
| sock_addr.sockaddr(), &sock_addr.length); |
| |
| if (bytes_read >= 0) { |
| if (out_source) { |
| if (!sock_addr.ToSbSocketAddress(out_source)) { |
| SB_DLOG(FATAL) << __FUNCTION__ << ": Bad UDP source address."; |
| socket->error = kSbSocketErrorFailed; |
| return -1; |
| } |
| } |
| |
| socket->error = kSbSocketOk; |
| return static_cast<int>(bytes_read); |
| } |
| |
| if (errno != EAGAIN && errno != EWOULDBLOCK && |
| socket->error != sbposix::TranslateSocketErrno(errno)) { |
| SB_DLOG(ERROR) << "recvfrom failed, errno = " << errno; |
| } |
| socket->error = sbposix::TranslateSocketErrno(errno); |
| return -1; |
| } |
| |
| SB_NOTREACHED() << "Unrecognized protocol: " << socket->protocol; |
| errno = EPROTONOSUPPORT; |
| return -1; |
| } |