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