shadow/libmisc/ulimit.c

/*
 * Copyright (c) 1990 - 1994, Julianne Frances Haugh
 * Copyright (c) 1996 - 1997, Marek Michałkiewicz
 * Copyright (c) 2003 - 2005, Tomasz Kłoczko
 * Copyright (c) 2008       , Nicolas François
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the copyright holders or contributors may not be used to
 *    endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <config.h>

#ident "$Id$"

#if HAVE_ULIMIT_H
#include <ulimit.h>
#ifndef UL_SETFSIZE
#ifdef UL_SFILLIM
#define UL_SETFSIZE UL_SFILLIM
#else
#define UL_SETFSIZE 2
#endif
#endif
#elif HAVE_SYS_RESOURCE_H
#include <sys/time.h>		/* for struct timeval on sunos4 */
/* XXX - is the above ok or should it be <time.h> on ultrix? */
#include <sys/resource.h>
#endif
#include "prototypes.h"

int set_filesize_limit (int blocks)
{
	int ret = -1;
#if HAVE_ULIMIT_H
	if (ulimit (UL_SETFSIZE, blocks) != -1) {
		ret = 0;
	}
#elif defined(RLIMIT_FSIZE)
	struct rlimit rlimit_fsize;

	rlimit_fsize.rlim_cur = 512L * blocks;
	rlimit_fsize.rlim_max = rlimit_fsize.rlim_cur;
	ret = setrlimit (RLIMIT_FSIZE, &rlimit_fsize);
#endif

	return ret;
}