1 files changed, 102 insertions, 0 deletions
diff --git a/modules/k_helper3/k_helper3.c b/modules/k_helper3/k_helper3.c
new file mode 100644
index 0000000000000..4e0984da59679
--- /dev/null
+++ b/modules/k_helper3/k_helper3.c
@@ -0,0 +1,102 @@
+/*	$NetBSD: k_helper3.c,v 1.3 2012/04/17 21:39:19 martin Exp $ */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: k_helper3.c,v 1.3 2012/04/17 21:39:19 martin Exp $");
+
+#include <sys/module.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <prop/proplib.h>
+
+static int load(const char *, ...);
+
+/*
+ * A program that loads a module and returns the errno(2) from modctl(8).
+ */
+int
+main(int argc, char *argv[])
+{
+	assert(argc == 3);
+
+	return load(argv[1], argv[2]);
+}
+
+static __printflike(1, 2) int
+load(const char *fmt, ...)
+{
+	char filename[MAXPATHLEN], *propsstr, *shortname, *dot;
+	prop_dictionary_t props;
+	modctl_load_t ml;
+	int serrno, rv;
+	va_list ap;
+
+	props = prop_dictionary_create();
+	propsstr = prop_dictionary_externalize(props);
+	assert(propsstr != NULL);
+	prop_object_release(props);
+
+	va_start(ap, fmt);
+	(void)vsnprintf(filename, sizeof(filename), fmt, ap);
+	va_end(ap);
+
+	ml.ml_filename = filename;
+	ml.ml_flags = 0;
+	ml.ml_props = propsstr;
+	ml.ml_propslen = strlen(propsstr);
+
+	printf("Loading module %s\n", filename);
+	errno = serrno = 0;
+
+	rv = modctl(MODCTL_LOAD, &ml);
+
+	if (rv != 0)
+		serrno = errno;
+
+	shortname = strrchr(filename, '/');
+	if (shortname != NULL)
+		shortname++;
+	else
+		shortname = filename;
+	dot = strrchr(shortname, '.');
+	if (dot)
+		*dot = 0;
+	(void)modctl(MODCTL_UNLOAD, shortname);
+
+	free(propsstr);
+
+	return serrno;
+}