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/*
* sendfile64 syscall. Copes with 64 bit and 32 bit machines
* and on 32 bit machines this sends things into the kernel as
* two 32-bit arguments (high and low 32 bits of length) that
* are ordered based on endianess. It turns out endian.h has
* just the macro we need to order things, __LONG_LONG_PAIR.
*
* Copyright (C) 2002 Erik Andersen <andersen@codepoet.org>
*
* This file is subject to the terms and conditions of the GNU
* Lesser General Public License. See the file COPYING.LIB in
* the main directory of this archive for more details.
*/
#include <features.h>
#include <unistd.h>
#include <errno.h>
#include <endian.h>
#include <stdint.h>
#include <sys/sendfile.h>
#include <sys/syscall.h>
#if defined __NR_sendfile64
#if __WORDSIZE == 64 || (defined(__powerpc__) && defined (__UCLIBC_HAS_LFS__))
/* For a 64 bit machine, life is simple... */
_syscall4(ssize_t,sendfile64, int, out_fd, int, in_fd, __off64_t *, offset, size_t, count);
#elif __WORDSIZE == 32
#if defined __UCLIBC_HAS_LFS__
_syscall4(ssize_t,sendfile64, int, out_fd, int, in_fd, __off64_t *, offset, size_t, count);
#endif /* __UCLIBC_HAS_LFS__ */
#else /* __WORDSIZE */
#error Your machine is not 64 bit or 32 bit, I am dazed and confused.
#endif /* __WORDSIZE */
#else /* ! defined __NR_sendfile64 */
ssize_t sendfile64 (int out_fd, int in_fd, __off64_t *offset, size_t count)
{
__set_errno (ENOSYS);
return -1;
}
#endif
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