xref: /minix3/lib/libc/sys/truncate.c (revision f14fb602092e015ff630df58e17c2a9cd57d29b3)
1*f14fb602SLionel Sambuc /*	$NetBSD: truncate.c,v 1.13 2012/03/20 16:26:12 matt Exp $	*/
22fe8fb19SBen Gras 
32fe8fb19SBen Gras /*
42fe8fb19SBen Gras  * Copyright (c) 1992, 1993
52fe8fb19SBen Gras  *	The Regents of the University of California.  All rights reserved.
62fe8fb19SBen Gras  *
72fe8fb19SBen Gras  * Redistribution and use in source and binary forms, with or without
82fe8fb19SBen Gras  * modification, are permitted provided that the following conditions
92fe8fb19SBen Gras  * are met:
102fe8fb19SBen Gras  * 1. Redistributions of source code must retain the above copyright
112fe8fb19SBen Gras  *    notice, this list of conditions and the following disclaimer.
122fe8fb19SBen Gras  * 2. Redistributions in binary form must reproduce the above copyright
132fe8fb19SBen Gras  *    notice, this list of conditions and the following disclaimer in the
142fe8fb19SBen Gras  *    documentation and/or other materials provided with the distribution.
152fe8fb19SBen Gras  * 3. Neither the name of the University nor the names of its contributors
162fe8fb19SBen Gras  *    may be used to endorse or promote products derived from this software
172fe8fb19SBen Gras  *    without specific prior written permission.
182fe8fb19SBen Gras  *
192fe8fb19SBen Gras  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
202fe8fb19SBen Gras  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
212fe8fb19SBen Gras  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
222fe8fb19SBen Gras  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
232fe8fb19SBen Gras  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
242fe8fb19SBen Gras  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
252fe8fb19SBen Gras  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
262fe8fb19SBen Gras  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
272fe8fb19SBen Gras  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
282fe8fb19SBen Gras  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
292fe8fb19SBen Gras  * SUCH DAMAGE.
302fe8fb19SBen Gras  */
312fe8fb19SBen Gras 
322fe8fb19SBen Gras #include <sys/cdefs.h>
332fe8fb19SBen Gras #if defined(LIBC_SCCS) && !defined(lint)
342fe8fb19SBen Gras #if 0
352fe8fb19SBen Gras static char sccsid[] = "@(#)truncate.c	8.1 (Berkeley) 6/17/93";
362fe8fb19SBen Gras #else
37*f14fb602SLionel Sambuc __RCSID("$NetBSD: truncate.c,v 1.13 2012/03/20 16:26:12 matt Exp $");
382fe8fb19SBen Gras #endif
392fe8fb19SBen Gras #endif /* LIBC_SCCS and not lint */
402fe8fb19SBen Gras 
412fe8fb19SBen Gras #include <sys/types.h>
422fe8fb19SBen Gras #include <sys/syscall.h>
432fe8fb19SBen Gras #include <unistd.h>
442fe8fb19SBen Gras 
452fe8fb19SBen Gras int __truncate(const char *, int, off_t);
462fe8fb19SBen Gras 
472fe8fb19SBen Gras /*
482fe8fb19SBen Gras  * This function provides 64-bit offset padding that
492fe8fb19SBen Gras  * is not supplied by GCC 1.X but is supplied by GCC 2.X.
502fe8fb19SBen Gras  */
512fe8fb19SBen Gras int
truncate(const char * path,off_t length)52*f14fb602SLionel Sambuc truncate(const char *path, off_t length)
532fe8fb19SBen Gras {
542fe8fb19SBen Gras 
552fe8fb19SBen Gras 	return __truncate(path, 0, length);
562fe8fb19SBen Gras }
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