1  /* Transfer data between file descriptors.  Linux version.
       2     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library 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 GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library.  If not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <sys/sendfile.h>
      20  #include <stddef.h>
      21  #include <errno.h>
      22  #include <sysdep.h>
      23  
      24  /* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
      25     descriptor OUT_FD.  */
      26  ssize_t
      27  sendfile64 (int out_fd, int in_fd, off64_t *offset, size_t count)
      28  {
      29  #ifndef __NR_sendfile64
      30  # define __NR_sendfile64 __NR_sendfile
      31  #endif
      32    return INLINE_SYSCALL_CALL (sendfile64, out_fd, in_fd, offset, count);
      33  }
      34  
      35  #ifdef __OFF_T_MATCHES_OFF64_T
      36  strong_alias (sendfile64, sendfile)
      37  #endif