Add setenv, getenv, setenv?, unsetenv, copyin and copyout to FICL.

1 files changed, 208 insertions, 0 deletions

diff --git a/sys/boot/ficl/loader.c b/sys/boot/ficl/loader.c
new file mode 100644
index 0000000..1444bbc
--- /dev/null
+++ b/sys/boot/ficl/loader.c
@@ -0,0 +1,208 @@
+/*-
+ * Copyright (c) 2000 Daniel Capo Sobral
+ * 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.
+ *
+ *	$FreeBSD$
+ */
+
+/*******************************************************************
+** l o a d e r . c
+** Additional FICL words designed for FreeBSD's loader
+** 
+*******************************************************************/
+
+#include <stand.h>
+#include "bootstrap.h"
+#include <string.h>
+#include "ficl.h"
+
+/*		FreeBSD's loader interaction words
+ *
+ * 		setenv      ( value n name n' -- )
+ * 		setenv?     ( value n name n' flag -- )
+ * 		getenv      ( addr n -- addr' n' | -1 )
+ * 		unsetenv    ( addr n -- )
+ * 		copyin      ( addr addr' len -- )
+ * 		copyout     ( addr addr' len -- )
+ */
+
+void
+ficlSetenv(FICL_VM *pVM)
+{
+	char	*namep, *valuep, *name, *value;
+	int	names, values;
+
+#if FICL_ROBUST > 1
+	vmCheckStack(pVM, 4, 0);
+#endif
+	names = stackPopINT(pVM->pStack);
+	namep = (char*) stackPopPtr(pVM->pStack);
+	values = stackPopINT(pVM->pStack);
+	valuep = (char*) stackPopPtr(pVM->pStack);
+
+	name = (char*) ficlMalloc(names+1);
+	if (!name)
+		vmThrowErr(pVM, "Error: out of memory");
+	strncpy(name, namep, names);
+	name[names] = '\0';
+	value = (char*) ficlMalloc(values+1);
+	if (!value)
+		vmThrowErr(pVM, "Error: out of memory");
+	strncpy(value, valuep, values);
+	value[values] = '\0';
+
+	setenv(name, value, 1);
+	ficlFree(name);
+	ficlFree(value);
+
+	return;
+}
+
+void
+ficlSetenvq(FICL_VM *pVM)
+{
+	char	*namep, *valuep, *name, *value;
+	int	names, values, overwrite;
+
+#if FICL_ROBUST > 1
+	vmCheckStack(pVM, 5, 0);
+#endif
+	overwrite = stackPopINT(pVM->pStack);
+	names = stackPopINT(pVM->pStack);
+	namep = (char*) stackPopPtr(pVM->pStack);
+	values = stackPopINT(pVM->pStack);
+	valuep = (char*) stackPopPtr(pVM->pStack);
+
+	name = (char*) ficlMalloc(names+1);
+	if (!name)
+		vmThrowErr(pVM, "Error: out of memory");
+	strncpy(name, namep, names);
+	name[names] = '\0';
+	value = (char*) ficlMalloc(values+1);
+	if (!value)
+		vmThrowErr(pVM, "Error: out of memory");
+	strncpy(value, valuep, values);
+	value[values] = '\0';
+
+	setenv(name, value, overwrite);
+	ficlFree(name);
+	ficlFree(value);
+
+	return;
+}
+
+void
+ficlGetenv(FICL_VM *pVM)
+{
+	char	*namep, *name, *value;
+	int	names;
+
+#if FICL_ROBUST > 1
+	vmCheckStack(pVM, 2, 2);
+#endif
+	names = stackPopINT(pVM->pStack);
+	namep = (char*) stackPopPtr(pVM->pStack);
+
+	name = (char*) ficlMalloc(names+1);
+	if (!name)
+		vmThrowErr(pVM, "Error: out of memory");
+	strncpy(name, namep, names);
+	name[names] = '\0';
+
+	value = getenv(name);
+	ficlFree(name);
+
+	if(value != NULL) {
+		stackPushPtr(pVM->pStack, value);
+		stackPushINT(pVM->pStack, strlen(value));
+	} else
+		stackPushINT(pVM->pStack, -1);
+
+	return;
+}
+
+void
+ficlUnsetenv(FICL_VM *pVM)
+{
+	char	*namep, *name;
+	int	names;
+
+#if FICL_ROBUST > 1
+	vmCheckStack(pVM, 2, 0);
+#endif
+	names = stackPopINT(pVM->pStack);
+	namep = (char*) stackPopPtr(pVM->pStack);
+
+	name = (char*) ficlMalloc(names+1);
+	if (!name)
+		vmThrowErr(pVM, "Error: out of memory");
+	strncpy(name, namep, names);
+	name[names] = '\0';
+
+	unsetenv(name);
+	ficlFree(name);
+
+	return;
+}
+
+void
+ficlCopyin(FICL_VM *pVM)
+{
+	void*		src;
+	vm_offset_t	dest;
+	size_t		len;
+
+#if FICL_ROBUST > 1
+	vmCheckStack(pVM, 3, 0);
+#endif
+
+	len = stackPopINT(pVM->pStack);
+	dest = stackPopINT(pVM->pStack);
+	src = stackPopPtr(pVM->pStack);
+
+	archsw.arch_copyin(src, dest, len);
+
+	return;
+}
+
+void
+ficlCopyout(FICL_VM *pVM)
+{
+	void*		dest;
+	vm_offset_t	src;
+	size_t		len;
+
+#if FICL_ROBUST > 1
+	vmCheckStack(pVM, 3, 0);
+#endif
+
+	len = stackPopINT(pVM->pStack);
+	dest = stackPopPtr(pVM->pStack);
+	src = stackPopINT(pVM->pStack);
+
+	archsw.arch_copyout(src, dest, len);
+
+	return;
+}
+