--- /dev/null
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * 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 <grpc/support/port_platform.h>
+
+#include "src/core/lib/iomgr/port.h"
+
+#ifdef GRPC_POSIX_SOCKETUTILS
+
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <grpc/support/log.h>
+#include "src/core/lib/iomgr/sockaddr.h"
+
+int grpc_accept4(int sockfd, grpc_resolved_address* resolved_addr, int nonblock,
+ int cloexec) {
+ int fd, flags;
+ fd = accept(sockfd, reinterpret_cast<grpc_sockaddr*>(resolved_addr->addr),
+ &resolved_addr->len);
+ if (fd >= 0) {
+ if (nonblock) {
+ flags = fcntl(fd, F_GETFL, 0);
+ if (flags < 0) goto close_and_error;
+ if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0) goto close_and_error;
+ }
+ if (cloexec) {
+ flags = fcntl(fd, F_GETFD, 0);
+ if (flags < 0) goto close_and_error;
+ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) != 0) goto close_and_error;
+ }
+ }
+ return fd;
+
+close_and_error:
+ close(fd);
+ return -1;
+}
+
+#endif /* GRPC_POSIX_SOCKETUTILS */