lib/socket-util.h

   1 /*
   2  * Copyright (c) 2008, 2009, 2010 Nicira Networks.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef SOCKET_UTIL_H
  18 #define SOCKET_UTIL_H 1
  19
  20 #include <sys/types.h>
  21 #include <netinet/in.h>
  22 #include <stdbool.h>
  23
  24 int set_nonblocking(int fd);
  25 int get_max_fds(void);
  26 int lookup_ip(const char *host_name, struct in_addr *address);
  27 int get_socket_error(int sock);
  28 int check_connection_completion(int fd);
  29 int drain_rcvbuf(int fd);
  30 void drain_fd(int fd, size_t n_packets);
  31 int make_unix_socket(int style, bool nonblock, bool passcred,
  32                      const char *bind_path, const char *connect_path);
  33 int get_unix_name_len(socklen_t sun_len);
  34 uint32_t guess_netmask(uint32_t ip);
  35 int get_null_fd(void);
  36
  37 int inet_open_active(int style, const char *target, uint16_t default_port,
  38                     struct sockaddr_in *sinp, int *fdp);
  39 int inet_open_passive(int style, const char *target, int default_port,
  40                       struct sockaddr_in *sinp);
  41
  42 int read_fully(int fd, void *, size_t, size_t *bytes_read);
  43 int write_fully(int fd, const void *, size_t, size_t *bytes_written);
  44
  45 int fsync_parent_dir(const char *file_name);
  46
  47 #endif /* socket-util.h */