1: /* Copyright (C) 1991, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <errno.h>
   20: #include <unistd.h>
   21: #include <sys/types.h>
   22: 
   23: /* Seek to OFFSET on FD, starting from WHENCE.  */
   24: off_t
   25: __lseek (fd, offset, whence)
   26:      int fd;
   27:      off_t offset;
   28:      int whence;
   29: {
   30:   if (fd < 0)
   31:     {
   32:       __set_errno (EBADF);
   33:       return -1;
   34:     }
   35:   switch (whence)
   36:     {
   37:     case SEEK_SET:
   38:     case SEEK_CUR:
   39:     case SEEK_END:
   40:       break;
   41:     default:
   42:       __set_errno (EINVAL);
   43:       return -1;
   44:     }
   45: 
   46:   __set_errno (ENOSYS);
   47:   return -1;
   48: }
   49: stub_warning (lseek)
   50: libc_hidden_def (__lseek)
   51: 
   52: weak_alias (__lseek, lseek)
   53: #include <stub-tag.h>