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authorSebastian Huber <sebastian.huber@embedded-brains.de>2016-05-06 21:22:38 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2016-05-06 21:41:20 +0200
commit5b1f20b73f410544f06353d4e81d5097c21ceac9 (patch)
tree7697935c04ad4567b1e1a58b967c39e5561269c6 /rtemsbsd/rtems/rtems-kernel-sysctlnametomib.c
parentAdd kernel namespace exception for mbstat (diff)
downloadrtems-libbsd-5b1f20b73f410544f06353d4e81d5097c21ceac9.tar.bz2
Rename files for kernel namespace script
This makes it easier to create the kernel namespace header.
Diffstat (limited to 'rtemsbsd/rtems/rtems-kernel-sysctlnametomib.c')
-rw-r--r--rtemsbsd/rtems/rtems-kernel-sysctlnametomib.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/rtemsbsd/rtems/rtems-kernel-sysctlnametomib.c b/rtemsbsd/rtems/rtems-kernel-sysctlnametomib.c
new file mode 100644
index 00000000..62ce6b80
--- /dev/null
+++ b/rtemsbsd/rtems/rtems-kernel-sysctlnametomib.c
@@ -0,0 +1,68 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd_rtems
+ *
+ * @brief TODO.
+ *
+ * File origin from FreeBSD 'lib/libc/gen/sysctlnametomib.c'.
+ */
+
+/*
+ * Copyright 2001 The FreeBSD Project. 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 FREEBSD PROJECT ``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 FREEBSD PROJECT 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.
+ */
+
+#include <machine/rtems-bsd-kernel-space.h>
+#include <machine/rtems-bsd-syscall-api.h>
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <rtems/bsd/sys/types.h>
+#include <sys/sysctl.h>
+#include <string.h>
+
+/*
+ * This function uses a presently undocumented interface to the kernel
+ * to walk the tree and get the type so it can print the value.
+ * This interface is under work and consideration, and should probably
+ * be killed with a big axe by the first person who can find the time.
+ * (be aware though, that the proper interface isn't as obvious as it
+ * may seem, there are various conflicting requirements.
+ */
+int
+sysctlnametomib(const char *name, int *mibp, size_t *sizep)
+{
+ int oid[2];
+ int error;
+
+ oid[0] = 0;
+ oid[1] = 3;
+
+ *sizep *= sizeof(int);
+ error = sysctl(oid, 2, mibp, sizep, name, strlen(name));
+ *sizep /= sizeof(int);
+ return (error);
+}