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ulimit.c revision 1.1 
      1 /*	$NetBSD: ulimit.c,v 1.1 1999/09/13 18:38:06 kleink Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Klaus Klein.
      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. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #if defined(LIBC_SCCS) && !defined(lint)
     41 __RCSID("$NetBSD: ulimit.c,v 1.1 1999/09/13 18:38:06 kleink Exp $");
     42 #endif /* LIBC_SCCS and not lint */
     43 
     44 #include <sys/resource.h>
     45 #include <errno.h>
     46 #include <ulimit.h>
     47 
     48 #if __STDC__
     49 #include <stdarg.h>
     50 #else
     51 #include <varargs.h>
     52 #endif
     53 
     54 long int
     55 #if __STDC__
     56 ulimit(int cmd, ...)
     57 #else
     58 ulimit(cmd, va_alist)
     59 	int cmd;
     60 	va_dcl
     61 #endif
     62 {
     63 	va_list ap;
     64 	struct rlimit rlimit;
     65 	long int new_limit, result;
     66 
     67 #if __STDC__
     68 	va_start(ap, cmd);
     69 #else
     70 	va_start(ap);
     71 #endif
     72 
     73 	result = -1L;
     74 	switch (cmd) {
     75 	case UL_GETFSIZE:
     76 		if (getrlimit(RLIMIT_FSIZE, &rlimit) == 0)
     77 			result = (long int)(rlimit.rlim_cur / 512);
     78 		break;
     79 	case UL_SETFSIZE:
     80 		new_limit = va_arg(ap, long int);
     81 		rlimit.rlim_cur = rlimit.rlim_max = (rlim_t)new_limit * 512;
     82 		if (setrlimit(RLIMIT_FSIZE, &rlimit) == 0)
     83 			result = new_limit;
     84 		break;
     85 	default:
     86 		errno = EINVAL;
     87 	}
     88 
     89 	va_end(ap);
     90 
     91 	return (result);
     92 }
     93