lib/libc/compat/stdio/compat_fsetpos.c

   1 /* $NetBSD: compat_fsetpos.c,v 1.2 2012/10/17 16:09:03 drochner Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Chris Torek.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * Original version ID:
  35  * NetBSD: fsetpos.c,v 1.10 2003/08/07 16:43:25 agc Exp
  36  */
  37
  38 #include <sys/cdefs.h>
  39 #if defined(LIBC_SCCS) && !defined(lint)
  40 __RCSID("$NetBSD: compat_fsetpos.c,v 1.2 2012/10/17 16:09:03 drochner Exp $");
  41 #endif /* LIBC_SCCS and not lint */
  42
  43 #define __LIBC12_SOURCE__
  44
  45 #include "namespace.h"
  46 #include <sys/types.h>
  47
  48 #include <assert.h>
  49 #include <stdio.h>
  50 #include <compat/include/stdio.h>
  51
  52 #ifdef __warn_references
  53 __warn_references(fsetpos,
  54     "warning: reference to compatibility fsetpos(); include <stdio.h> for correct reference")
  55 #endif
  56
  57
  58 /*
  59  * fsetpos: like fseek.
  60  */
  61 int
  62 fsetpos(FILE * __restrict iop, const off_t * __restrict pos)
  63 {
  64         _DIAGASSERT(iop != NULL);
  65         _DIAGASSERT(pos != NULL);
  66
  67         return fseeko(iop, *pos, SEEK_SET) == (off_t)-1;
  68 }