From a5e73624079942c586e69a018f5ceb90fd776e5b Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Sun, 10 Aug 2003 02:58:53 +0000
Subject: Add support for the ulimit syscall
---
libc/sysdeps/linux/common/ulimit.c | 81 ++++++++++++++++++++++++++++++++++++++
1 file changed, 81 insertions(+)
create mode 100644 libc/sysdeps/linux/common/ulimit.c
(limited to 'libc')
diff --git a/libc/sysdeps/linux/common/ulimit.c b/libc/sysdeps/linux/common/ulimit.c
new file mode 100644
index 000000000..a0fa1258b
--- /dev/null
+++ b/libc/sysdeps/linux/common/ulimit.c
@@ -0,0 +1,81 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2003 by Erik Andersen <andersen@codpoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define _GNU_SOURCE
+#define _LARGEFILE64_SOURCE
+#include <features.h>
+#undef __OPTIMIZE__
+/* We absolutely do _NOT_ want interfaces silently
+ * * * renamed under us or very bad things will happen... */
+#ifdef __USE_FILE_OFFSET64
+# undef __USE_FILE_OFFSET64
+#endif
+
+
+#ifdef __NR_ulimit
+
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+_syscall2(long, ulimit, int, cmd, int, arg);
+
+#else
+
+#include <stdarg.h>
+#include <unistd.h>
+#include <ulimit.h>
+#include <errno.h>
+#include <sys/resource.h>
+
+long int ulimit(int cmd, ...)
+{
+ va_list va;
+ struct rlimit limit;
+ long int result = -1;
+ va_start (va, cmd);
+ switch (cmd) {
+ /* Get limit on file size. */
+ case UL_GETFSIZE:
+ if (getrlimit(RLIMIT_FSIZE, &limit) == 0)
+ result = limit.rlim_cur / 512; /* bytes to 512 byte blocksize */
+ break;
+ /* Set limit on file size. */
+ case UL_SETFSIZE:
+ result = va_arg (va, long int);
+ if ((rlim_t) result > RLIM_INFINITY / 512) {
+ limit.rlim_cur = RLIM_INFINITY;
+ limit.rlim_max = RLIM_INFINITY;
+ } else {
+ limit.rlim_cur = result * 512;
+ limit.rlim_max = result * 512;
+ }
+ result = setrlimit(RLIMIT_FSIZE, &limit);
+ break;
+ case __UL_GETOPENMAX:
+ result = sysconf(_SC_OPEN_MAX);
+ break;
+ default:
+ __set_errno(EINVAL);
+ }
+ va_end (va);
+ return result;
+}
+#endif
+
--
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