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/* vi: set sw=4 ts=4: */
/*
* lseek() for uClibc
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <sys/syscall.h>
#include <unistd.h>
#ifdef __NR_lseek
_syscall3(__off_t, lseek, int, fildes, __off_t, offset, int, whence)
#elif defined __UCLIBC_HAS_LFS__ && defined __NR__llseek /* avoid circular dependency */
__off_t lseek(int fildes, __off_t offset, int whence)
{
return lseek64(fildes, offset, whence);
}
#else
# include <errno.h>
__off_t lseek(int fildes, __off_t offset attribute_unused, int whence)
{
if (fildes < 0) {
__set_errno(EBADF);
return -1;
}
switch(whence) {
case SEEK_SET:
case SEEK_CUR:
case SEEK_END:
break;
default:
__set_errno(EINVAL);
return -1;
}
__set_errno(ENOSYS);
return -1;
}
#endif
#ifndef __LINUXTHREADS_OLD__
libc_hidden_def(lseek)
#else
libc_hidden_weak(lseek)
strong_alias(lseek,__libc_lseek)
#endif
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