| /* sendfile -- copy data directly from one file descriptor to another | 
 |    Copyright (C) 1998,99,01,2002,2004 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, write to the Free | 
 |    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | 
 |    02111-1307 USA.  */ | 
 |  | 
 | #ifndef _SYS_SENDFILE_H | 
 | #define _SYS_SENDFILE_H	1 | 
 |  | 
 | #include <features.h> | 
 | #include <sys/types.h> | 
 |  | 
 | __BEGIN_DECLS | 
 |  | 
 | /* Send up to COUNT bytes from file associated with IN_FD starting at | 
 |    *OFFSET to descriptor OUT_FD.  Set *OFFSET to the IN_FD's file position | 
 |    following the read bytes.  If OFFSET is a null pointer, use the normal | 
 |    file position instead.  Return the number of written bytes, or -1 in | 
 |    case of error.  */ | 
 | #ifndef __USE_FILE_OFFSET64 | 
 | extern ssize_t sendfile (int __out_fd, int __in_fd, off_t *__offset, | 
 | 			 size_t __count) __THROW; | 
 | #else | 
 | # ifdef __REDIRECT_NTH | 
 | extern ssize_t __REDIRECT_NTH (sendfile, | 
 | 			       (int __out_fd, int __in_fd, __off64_t *__offset, | 
 | 				size_t __count), sendfile64); | 
 | # else | 
 | #  define sendfile sendfile64 | 
 | # endif | 
 | #endif | 
 | #ifdef __USE_LARGEFILE64 | 
 | extern ssize_t sendfile64 (int __out_fd, int __in_fd, __off64_t *__offset, | 
 | 			   size_t __count) __THROW; | 
 | #endif | 
 |  | 
 | __END_DECLS | 
 |  | 
 | #endif	/* sys/sendfile.h */ |