Libc-320.tar.gz

[apple/libc.git] / gen / FreeBSD / ulimit.c

diff --git a/gen/FreeBSD/ulimit.c b/gen/FreeBSD/ulimit.c
new file mode 100644 (file)
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--- /dev/null
+++ b/gen/FreeBSD/ulimit.c
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+/*-
+ * 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: src/lib/libc/gen/ulimit.c,v 1.3 2003/01/04 01:11:49 tjr Exp $
+ */
+
+#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;
+
+       if (cmd == UL_GETFSIZE) {
+               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_SETFSIZE) {
+               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);
+       }
+}