sendfile.h

   1 /* MiniDLNA media server
   2  * Copyright (C) 2013  NETGEAR
   3  *
   4  * This file is part of MiniDLNA.
   5  *
   6  * MiniDLNA is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * MiniDLNA 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 MiniDLNA. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #if defined(HAVE_LINUX_SENDFILE_API)
  19
  20 #include <sys/sendfile.h>
  21
  22 int sys_sendfile(int sock, int sendfd, off_t *offset, off_t len)
  23 {
  24         return sendfile(sock, sendfd, offset, len);
  25 }
  26
  27 #elif defined(HAVE_DARWIN_SENDFILE_API)
  28
  29 #include <sys/types.h>
  30 #include <sys/socket.h>
  31 #include <sys/uio.h>
  32
  33 int sys_sendfile(int sock, int sendfd, off_t *offset, off_t len)
  34 {
  35         int ret;
  36
  37         ret = sendfile(sendfd, sock, *offset, &len, NULL, 0);
  38         *offset += len;
  39
  40         return ret;
  41 }
  42
  43 #elif defined(HAVE_FREEBSD_SENDFILE_API)
  44
  45 #include <sys/types.h>
  46 #include <sys/socket.h>
  47 #include <sys/uio.h>
  48
  49 int sys_sendfile(int sock, int sendfd, off_t *offset, off_t len)
  50 {
  51         int ret;
  52         size_t nbytes = len;
  53
  54         ret = sendfile(sendfd, sock, *offset, nbytes, NULL, &len, 0);
  55         *offset += len;
  56
  57         return ret;
  58 }
  59
  60 #else
  61
  62 #include <errno.h>
  63
  64 int sys_sendfile(int sock, int sendfd, off_t *offset, off_t len)
  65 {
  66         errno = EINVAL;
  67         return -1;
  68 }
  69
  70 #endif