lib/util/msghdr.h

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * Copyright (C) Volker Lendecke 2014
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef __LIB_MSGHDR_H__
  20 #define __LIB_MSGHDR_H__
  21
  22 #include <stddef.h>
  23 #include <stdint.h>
  24 #include <sys/uio.h>
  25 #include <sys/socket.h>
  26
  27 ssize_t msghdr_prep_fds(struct msghdr *msg, uint8_t *buf, size_t bufsize,
  28                         const int *fds, size_t num_fds);
  29
  30 struct msghdr_buf;
  31
  32 ssize_t msghdr_copy(struct msghdr_buf *msg, size_t msgsize,
  33                     const void *addr, socklen_t addrlen,
  34                     const struct iovec *iov, int iovcnt,
  35                     const int *fds, size_t num_fds);
  36 struct msghdr *msghdr_buf_msghdr(struct msghdr_buf *msg);
  37
  38 size_t msghdr_prep_recv_fds(struct msghdr *msg, uint8_t *buf, size_t bufsize,
  39                             size_t num_fds);
  40 size_t msghdr_extract_fds(struct msghdr *msg, int *fds, size_t num_fds);
  41
  42 #endif