1 files changed, 145 insertions, 0 deletions
diff --git a/sys/boot/common/misc.c b/sys/boot/common/misc.c
new file mode 100644
index 0000000..9f38b60
--- /dev/null
+++ b/sys/boot/common/misc.c
@@ -0,0 +1,145 @@
+/*-
+ * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <string.h>
+#include <stand.h>
+#include <bootstrap.h>
+
+/*
+ * Concatenate the (argc) elements of (argv) into a single string, and return
+ * a copy of same.
+ */
+char *
+unargv(int argc, char *argv[])
+{
+    size_t	hlong;
+    int		i;
+    char	*cp;
+
+    for (hlong = 0, i = 0, hlong = 0; i < argc; i++)
+	hlong += strlen(argv[i]) + 2;
+
+    if(hlong == 0)
+	return(NULL);
+
+    cp = malloc(hlong);
+    cp[0] = 0;
+    for (i = 0; i < argc; i++) {
+	strcat(cp, argv[i]);
+	if (i < (argc - 1))
+	  strcat(cp, " ");
+    }
+	  
+    return(cp);
+}
+
+/*
+ * Get the length of a string in kernel space
+ */
+size_t
+strlenout(vm_offset_t src)
+{
+    char	c;
+    size_t	len;
+    
+    for (len = 0; ; len++) {
+	archsw.arch_copyout(src++, &c, 1);
+	if (c == 0)
+	    break;
+    }
+    return(len);
+}
+
+/*
+ * Make a duplicate copy of a string in kernel space
+ */
+char *
+strdupout(vm_offset_t str)
+{
+    char	*result, *cp;
+    
+    result = malloc(strlenout(str) + 1);
+    for (cp = result; ;cp++) {
+	archsw.arch_copyout(str++, cp, 1);
+	if (*cp == 0)
+	    break;
+    }
+    return(result);
+}
+
+/*
+ * Display a region in traditional hexdump format.
+ */
+void
+hexdump(caddr_t region, size_t len)
+{
+    caddr_t	line;
+    int		x, c;
+    char	lbuf[80];
+#define emit(fmt, args...)	{sprintf(lbuf, fmt , ## args); pager_output(lbuf);}
+
+    pager_open();
+    for (line = region; line < (region + len); line += 16) {
+	emit("%08lx  ", (long) line);
+	
+	for (x = 0; x < 16; x++) {
+	    if ((line + x) < (region + len)) {
+		emit("%02x ", *(u_int8_t *)(line + x));
+	    } else {
+		emit("-- ");
+	    }
+	    if (x == 7)
+		emit(" ");
+	}
+	emit(" |");
+	for (x = 0; x < 16; x++) {
+	    if ((line + x) < (region + len)) {
+		c = *(u_int8_t *)(line + x);
+		if ((c < ' ') || (c > '~'))	/* !isprint(c) */
+		    c = '.';
+		emit("%c", c);
+	    } else {
+		emit(" ");
+	    }
+	}
+	emit("|\n");
+    }
+    pager_close();
+}
+
+void
+dev_cleanup(void)
+{
+    int		i;
+
+    /* Call cleanup routines */
+    for (i = 0; devsw[i] != NULL; ++i)
+	if (devsw[i]->dv_cleanup != NULL)
+	    (devsw[i]->dv_cleanup)();
+}