1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002 Kyle Martin <mkm@ieee.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/types.h> 32 #include <sys/time.h> 33 #include <sys/resource.h> 34 35 #include <errno.h> 36 #include <limits.h> 37 #include <stdarg.h> 38 #include <ulimit.h> 39 40 long 41 ulimit(int cmd, ...) 42 { 43 struct rlimit limit; 44 va_list ap; 45 rlim_t arg; 46 47 if (cmd == UL_GETFSIZE) { 48 if (getrlimit(RLIMIT_FSIZE, &limit) == -1) 49 return (-1); 50 limit.rlim_cur /= 512; 51 if (limit.rlim_cur > LONG_MAX) 52 return (LONG_MAX); 53 return ((long)limit.rlim_cur); 54 } else if (cmd == UL_SETFSIZE) { 55 va_start(ap, cmd); 56 arg = va_arg(ap, long); 57 va_end(ap); 58 if (arg < 0) 59 arg = LONG_MAX; 60 if (arg > RLIM_INFINITY / 512) 61 arg = RLIM_INFINITY / 512; 62 limit.rlim_max = limit.rlim_cur = arg * 512; 63 64 /* The setrlimit() function sets errno to EPERM if needed. */ 65 if (setrlimit(RLIMIT_FSIZE, &limit) == -1) 66 return (-1); 67 return ((long)arg); 68 } else { 69 errno = EINVAL; 70 return (-1); 71 } 72 } 73