| /* sendfile -- copy data directly from one file descriptor to another |
| Copyright (C) 2002-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sys/sendfile.h> |
| #include <stddef.h> |
| |
| /* Send COUNT bytes from file associated with IN_FD starting at OFFSET to |
| descriptor OUT_FD. */ |
| ssize_t |
| sendfile (int out_fd, int in_fd, off_t *offset, size_t count) |
| { |
| if (offset == NULL || sizeof (off_t) == sizeof (off64_t)) |
| return sendfile64 (out_fd, in_fd, (off64_t *) offset, count); |
| else |
| { |
| off64_t ofs = *offset; |
| ssize_t ret = sendfile64 (out_fd, in_fd, &ofs, count); |
| *offset = ofs; |
| return ret; |
| } |
| } |
