usr/src/lib/libc/port/gen/tell.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /*
  33  * return offset in file.
  34  */
  35
  36 #include <sys/feature_tests.h>
  37
  38 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
  39 #pragma weak _tell64 = tell64
  40 #else
  41 #pragma weak _tell = tell
  42 #endif
  43
  44 #include "lint.h"
  45 #include <fcntl.h>
  46 #include <stdio.h>
  47 #include <unistd.h>
  48 #include <sys/types.h>
  49
  50 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
  51
  52 off64_t
  53 tell64(int f)
  54 {
  55         return (lseek64(f, 0, SEEK_CUR));
  56 }
  57
  58 #else
  59
  60 off_t
  61 tell(int f)
  62 {
  63         return (lseek(f, 0, SEEK_CUR));
  64 }
  65
  66 #endif  /* _FILE_OFFSET_BITS == 64 */