argument vector support

2 files changed, 120 insertions, 0 deletions

diff --git a/sys/stand/boot/bootarg.c b/sys/stand/boot/bootarg.c
new file mode 100644
index 00000000000..1012d458d6f
--- /dev/null
+++ b/sys/stand/boot/bootarg.c
@@ -0,0 +1,73 @@
+/*	$OpenBSD: bootarg.c,v 1.1 1997/10/21 04:05:53 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1997 Michael Shalayeff
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 REGENTS 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 <lib/libsa/stand.h>
+#include <stand/boot/bootarg.h>
+
+static bootarg_t *list = NULL;
+
+void
+addbootarg(t, l, p)
+	int t;
+	size_t l;
+	void *p;
+{
+	bootarg_t *q = alloc(sizeof(*q) + l - sizeof(q->ba_arg));
+
+	q->ba_type = t;
+	q->ba_size = sizeof(*q) + l - sizeof(q->ba_arg);
+	memcpy(q->ba_arg, p, l);
+	q->ba_next = list;
+	list = q;
+}
+
+void *
+makebootargs(lenp)
+	size_t *lenp;
+{
+	bootarg_t *p;
+	u_char *r, *q;
+
+	/* get total size */
+	*lenp = 0;
+	for (p = list; p != NULL; p = p->ba_next)
+		*lenp += p->ba_size;
+	r = alloc(*lenp + sizeof(p->ba_type));
+	/* copy them out */
+	for (p = list, q = r; p != NULL; p = p->ba_next, q += p->ba_size)
+		memcpy(q, p, p->ba_size);
+	*(int *)q = BOOTARG_END;
+	return r;
+}
+
diff --git a/sys/stand/boot/bootarg.h b/sys/stand/boot/bootarg.h
new file mode 100644
index 00000000000..1bb1426b208
--- /dev/null
+++ b/sys/stand/boot/bootarg.h
@@ -0,0 +1,47 @@
+/*	$OpenBSD: bootarg.h,v 1.1 1997/10/21 04:05:54 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1996 Michael Shalayeff
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 REGENTS 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.
+ *
+ */
+
+typedef struct _boot_args {
+	int ba_type;
+	size_t ba_size;
+	struct _boot_args *ba_next;
+	int ba_arg[1];
+} bootarg_t;
+
+#define	BOOTARG_END	-1
+
+#ifdef _STANDALONE
+void addbootarg __P((int, size_t, void *));
+void *makebootargs __P((size_t *));
+#endif /* _STANDALONE */