1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #include <grpc/support/port_platform.h> 20 21 #include "src/core/lib/iomgr/port.h" 22 23 #ifdef GRPC_POSIX_SOCKETUTILS 24 25 #include "src/core/lib/iomgr/socket_utils_posix.h" 26 27 #include <fcntl.h> 28 #include <sys/socket.h> 29 #include <unistd.h> 30 31 #include <grpc/support/log.h> 32 #include "src/core/lib/iomgr/sockaddr.h" 33 34 int grpc_accept4(int sockfd, grpc_resolved_address* resolved_addr, int nonblock, 35 int cloexec) { 36 int fd, flags; 37 fd = accept(sockfd, reinterpret_cast<grpc_sockaddr*>(resolved_addr->addr), 38 &resolved_addr->len); 39 if (fd >= 0) { 40 if (nonblock) { 41 flags = fcntl(fd, F_GETFL, 0); 42 if (flags < 0) goto close_and_error; 43 if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0) goto close_and_error; 44 } 45 if (cloexec) { 46 flags = fcntl(fd, F_GETFD, 0); 47 if (flags < 0) goto close_and_error; 48 if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) != 0) goto close_and_error; 49 } 50 } 51 return fd; 52 53 close_and_error: 54 close(fd); 55 return -1; 56 } 57 58 #endif /* GRPC_POSIX_SOCKETUTILS */ 59
