diff options
author | mike <mike@FreeBSD.org> | 2002-08-08 04:50:36 +0000 |
---|---|---|
committer | mike <mike@FreeBSD.org> | 2002-08-08 04:50:36 +0000 |
commit | a72d8585b7d6c0e0b3cd0824b229a07724c33288 (patch) | |
tree | cbb393f0b70086e915644ca4cf3a98a13e26cb56 /lib/libc/gen/ulimit.c | |
parent | 586a522666b49914c4ff437eeea75730cbeefec1 (diff) | |
download | FreeBSD-src-a72d8585b7d6c0e0b3cd0824b229a07724c33288.zip FreeBSD-src-a72d8585b7d6c0e0b3cd0824b229a07724c33288.tar.gz |
Implement POSIX.1-2001 (XSI)'s ulimit(3).
Submitted by: Kyle Martin <mkm@ieee.org>
Diffstat (limited to 'lib/libc/gen/ulimit.c')
-rw-r--r-- | lib/libc/gen/ulimit.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/libc/gen/ulimit.c b/lib/libc/gen/ulimit.c new file mode 100644 index 0000000..806c587 --- /dev/null +++ b/lib/libc/gen/ulimit.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 2002 Kyle Martin <mkm@ieee.org> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <sys/types.h> +#include <sys/time.h> +#include <sys/resource.h> + +#include <errno.h> +#include <limits.h> +#include <stdarg.h> +#include <ulimit.h> + +long +ulimit(int cmd, ...) +{ + struct rlimit limit; + va_list ap; + long arg, size; + + if (cmd == UL_GETSIZE) { + if (getrlimit(RLIMIT_FSIZE, &limit) == -1) + return (-1); + limit.rlim_cur /= 512; + if (limit.rlim_cur > LONG_MAX) + return (LONG_MAX); + return ((long)limit.rlim_cur); + } else if (cmd == UL_SETSIZE) { + va_start(ap, cmd); + arg = va_arg(ap, long); + va_end(ap); + limit.rlim_max = limit.rlim_cur = (rlim_t)arg * 512; + + /* The setrlimit() function sets errno to EPERM if needed. */ + if (setrlimit(RLIMIT_FSIZE, &limit) == -1) + return (-1); + if (arg * 512 > LONG_MAX) + return (LONG_MAX); + return (arg); + } else { + errno = EINVAL; + return (-1); + } +} |