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glibc  2.9
lseek64.c
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00001 /* Copyright (C) 1991,95,96,97,98,2000 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <errno.h>
00020 #include <unistd.h>
00021 #include <sys/types.h>
00022 
00023 /* Seek to OFFSET on FD, starting from WHENCE.  */
00024 off64_t
00025 __libc_lseek64 (int fd, off64_t offset, int whence)
00026 {
00027   if (fd < 0)
00028     {
00029       __set_errno (EBADF);
00030       return -1;
00031     }
00032   switch (whence)
00033     {
00034     case SEEK_SET:
00035     case SEEK_CUR:
00036     case SEEK_END:
00037       break;
00038     default:
00039       __set_errno (EINVAL);
00040       return -1;
00041     }
00042 
00043   __set_errno (ENOSYS);
00044   return -1;
00045 }
00046 weak_alias (__libc_lseek64, __lseek64)
00047 weak_alias (__libc_lseek64, lseek64)
00048 stub_warning (lseek64)
00049 #include <stub-tag.h>